cruise control en

How Cruise Control Systems Work

Share Content on Facebook
Share Content on LinkedIn
Share Content on Flipboard
Share Content on Reddit
Share Content via Email

Cruise control is an invaluable feature on American cars. Without cruise control, long road trips would be more tiring, for the driver at least, and those of us suffering from lead-foot syndrome would probably get a lot more speeding tickets.

Cruise control is far more common on American cars than European cars, because the roads in America are generally bigger and straighter, and destinations are farther apart. With traffic continually increasing, basic cruise control is becoming less useful, but instead of becoming obsolete, cruise control systems are adapting to this new reality -- soon, cars will be equipped with adaptive cruise control, which will allow your car to follow the car in front of it while continually adjusting speed to maintain a safe distance.

In this article, we'll learn how a conventional cruise control system works, and then we'll take a look at adaptive cruise control systems that are under development.

What Cruise Control Does

Cruise control acceleration and deceleration, controlling the cruise control, adaptive cruise control.

The cruise control system actually has a lot of functions other than controlling the speed of your car. For instance, the cruise control pictured below can accelerate or decelerate the car by 1 mph with the tap of a button. Hit the button five times to go 5 mph faster. There are also several important safety features -- the cruise control will disengage as soon as you hit the brake pedal, and it won't engage at speeds less than 25 mph (40 kph).

The system pictured below has five buttons: On, Off, Set/Accel, Resume and Coast. It also has a sixth control -- the brake pedal, and if your car has a manual transmission the clutch pedal is also hooked up to the cruise control.

The on and off buttons don't actually do much. Hitting the on button does not do anything except tell the car that you might be hitting another button soon. The off button turns the cruise control off even if it is engaged. Some cruise controls don't have these buttons; instead, they turn off when the driver hits the brakes, and turn on when the driver hits the set button.
The set/accel button tells the car to maintain the speed you are currently driving. If you hit the set button at 45 mph, the car will maintain your speed at 45 mph. Holding down the set/accel button will make the car accelerate; and on this car, tapping it once will make the car go 1 mph faster.
If you recently disengaged the cruise control by hitting the brake pedal, hitting the resume button will command the car to accelerate back to the most recent speed setting.
Holding down the coast button will cause the car to decelerate, just as if you took your foot completely off the gas. On this car, tapping the coast button once will cause the car to slow down by 1 mph.
The brake pedal and clutch pedal each have a switch that disengages the cruise control as soon as the pedal is pressed, so you can shut off the cruise control with a light tap on the brake or clutch.

The cruise control system controls the speed of your car the same way you do -- by adjusting the throttle position . But cruise control actuates the throttle valve by a cable connected to an actuator , instead of by pressing a pedal. The throttle valve controls the power and speed of the engine by limiting how much air the engine takes in (see How Fuel Injection Systems Work for more details).

In the picture above, you can see two cables connected to a pivot that moves the throttle valve. One cable comes from the accelerator pedal, and one from the actuator. When the cruise control is engaged, the actuator moves the cable connected to the pivot, which adjusts the throttle; but it also pulls on the cable that is connected to the gas pedal -- this is why your pedal moves up and down when the cruise control is engaged.

Many cars use actuators powered by engine vacuum to open and close the throttle. These systems use a small, electronically-controlled valve to regulate the vacuum in a diaphragm. This works in a similar way to the brake booster , which provides power to your brake system.

The brain of a cruise control system is a small computer that is normally found under the hood or behind the dashboard. It connects to the throttle control seen in the previous section, as well as several sensors. The diagram below shows the inputs and outputs of a typical cruise control system.

A good cruise control system accelerates aggressively to the desired speed without overshooting, and then maintains that speed with little deviation no matter how much weight is in the car, or how steep the hill you drive up. Controlling the speed of a car is a classic application of control system theory . The cruise control system controls the speed of the car by adjusting the throttle position, so it needs sensors to tell it the speed and throttle position. It also needs to monitor the controls so it can tell what the desired speed is and when to disengage.

The most important input is the speed signal; the cruise control system does a lot with this signal. First, let's start with one of the most basic control systems you could have -- a proportional control .

In a proportional control system, the cruise control adjusts the throttle proportional to the error, the error being the difference between the desired speed and the actual speed. So, if the cruise control is set at 60 mph and the car is going 50 mph, the throttle position will be open quite far. When the car is going 55 mph, the throttle position opening will be only half of what it was before. The result is that the closer the car gets to the desired speed, the slower it accelerates. Also, if you were on a steep enough hill, the car might not accelerate at all.

Most cruise control systems use a control scheme called proportional-integral-derivative control (a.k.a. PID control). Don't worry, you don't need to know any calculus to make it through this explanation -- just remember that:

The integral of speed is distance.
The derivative of speed is acceleration.

A PID control system uses these three factors -- proportional, integral and derivative, calculating each individually and adding them to get the throttle position.

We've already discussed the proportional factor. The integral factor is based on the time integral of the vehicle speed error . Translation: the difference between the distance your car actually traveled and the distance it would have traveled if it were going at the desired speed, calculated over a set period of time. This factor helps the car deal with hills, and also helps it settle into the correct speed and stay there. Let's say your car starts to go up a hill and slows down. The proportional control increases the throttle a little, but you may still slow down. After a little while, the integral control will start to increase the throttle, opening it more and more, because the longer the car maintains a speed slower than the desired speed, the larger the distance error gets.

Now let's add in the final factor, the derivative . Remember that the derivative of speed is acceleration. This factor helps the cruise control respond quickly to changes, such as hills. If the car starts to slow down, the cruise control can see this acceleration (slowing down and speeding up are both acceleration) before the speed can actually change much, and respond by increasing the throttle position.

Two companies are developing a more advanced cruise control that can automatically adjust a car's speed to maintain a safe following distance. This new technology, called adaptive cruise control , uses forward-looking radar , installed behind the grill of a vehicle, to detect the speed and distance of the vehicle ahead of it.

Adaptive cruise control is similar to conventional cruise control in that it maintains the vehicle's pre-set speed. However, unlike conventional cruise control, this new system can automatically adjust speed in order to maintain a proper distance between vehicles in the same lane. This is achieved through a radar headway sensor , digital signal processor and longitudinal controller . If the lead vehicle slows down, or if another object is detected, the system sends a signal to the engine or braking system to decelerate. Then, when the road is clear, the system will re-accelerate the vehicle back to the set speed.

The 77-GHz Autocruise radar system made by TRW has a forward-looking range of up to 492 feet (150 meters), and operates at vehicle speeds ranging from 18.6 miles per hour (30 kph) to 111 mph (180 kph). Delphi's 76-GHz system can also detect objects as far away as 492 feet, and operates at speeds as low as 20 mph (32 kph).

Adaptive cruise control is just a preview of the technology being developed by both companies. These systems are being enhanced to include collision warning capabilities that will warn drivers through visual and/or audio signals that a collision is imminent and that braking or evasive steering is needed.

For more information on cruise control, check out the links below.

Cruise Control FAQ

How does cruise control work, how does adaptive cruise control work, will adaptive cruise control stop the vehicle, when would you use cruise control, how useful is cruise control, lots more information, related articles.

How Car Engines Work
How Brakes Work
How Manual Transmissions Work
How Fuel Injection Systems Work
How Radar Detectors Work
Ignition System Quiz

How to Use Cruise Control on a Car

Last Updated: February 20, 2024 Fact Checked

This article was co-authored by Simon Miyerov . Simon Miyerov is the President and Driving Instructor for Drive Rite Academy, a driving academy based out of New York City. Simon has over 8 years of driving instruction experience. His mission is to ensure the safety of everyday drivers and continue to make New York a safer and efficient driving environment. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 482,888 times.

Many cars come with cruise control systems, a great feature that will automatically keep a car driving at a set speed. This gives your feet a rest, and helps you save gas and avoid speeding tickets. Familiarize yourself with your car's cruise control switches, located on or near the steering wheel. Make sure to use cruise control only in safe conditions, and to stay focused on the road. Once you know how to operate cruise control, you're ready for a comfortable, efficient drive!

Get Car Support Solve Any Problem

We’re sorry we don’t support the car you are looking for. Please enter its make, model, and year below so that we can add support for it.

Operating Cruise Control

Step 1 Locate your car's cruise control switches.

Check your car's operating manual if you are unable to find the cruise control switches.

Step 2 Study the layout of the switches.

Many cars have additional buttons to increase or decrease speed (marked by a +/-) when using cruise control.

Step 3 Drive your car until you reach your desired speed and hit “SET.”

For some car models, cruise control will not operate below a certain speed, such as 40 miles (64 km) per hour.

Step 4 Stop cruise control whenever you need to.

To stop cruise control briefly (such as when a car in front of you brakes), just press the brake as you normally would.
If you are driving a manual, you can also disengage cruise control by pressing the clutch.
If you are completely done using cruise control, you can press the “OFF” or "ON/OFF" switch.
If your car has a cruise control “CANCEL” switch, you can also press that to stop it.

Step 5 Resume cruise control, if you want.

If your car has a +/- button for cruise control, press this when you want to raise or lower your car's speed.

Using Cruise Control Safely and Efficiently

Step 1 Reserve cruise control for the open road.

Using cruise control on busy streets can also be dangerous. Since you yourself are not in complete control of your car, you may be paying less attention. You might brake or react to other cars more slowly than normal, increasing the chance of an accident.

Step 2 Avoid using cruise control in hazardous conditions.

Wet or snowy roads
Hilly, steep, or mountainous areas
Winding roads

Expert Q&A

↑ Simon Miyerov. Driving Instructor. Expert Interview. 4 December 2019.
↑ https://www.youtube.com/watch?v=jKtBSFoAYlg
↑ http://www.thecarexpert.co.uk/cruise-control/

About This Article

If you want to use cruise control on your car, make sure you're on the open road, such as a freeway or highway. Additionally, avoid using cruise control in rainy or snowy conditions, or if you're driving through a city, since you'll need to change speed and turn regularly. When you're ready to switch to cruise control, press the "Set" switch, which is usually found on the steering column or on the wheel, when your car reaches the desired speed. To stop cruise control, press on the brake or push the clutch if you're driving a manual car. To learn when to avoid using cruise control and how it can help you save on fuel, read on! Did this summary help you? Yes No

Send fan mail to authors

Reader Success Stories

Joseph Adizero

Dec 17, 2020

Did this article help you?

Suraj Sinha

Jun 17, 2016

Ashish Vohra

Oct 17, 2017

Jul 26, 2017

Alejandro Martinez

Jul 25, 2016

Featured Articles

Watch Articles

Terms of Use
Privacy Policy
Do Not Sell or Share My Info
Not Selling Info

wikiHow Tech Help Pro:

Develop the tech skills you need for work and life

Cruise Control In Cars Explained (And How To Safely Use It)

Have you ever wished you could set your car's speed and just sit back and relax while driving on a long stretch of highway? If that's the case, then cruise control is just the ticket you've been searching for—and the good news is, it's a standard feature in most cars these days!

Cruise control is a handy feature for drivers that allows you to maintain a constant speed without having to keep your foot on the gas pedal. In this post, we'll explore how cruise control works, its benefits, and how to use it safely to make your driving experience more comfortable.

Understanding Cruise Control

Cruise control, also known as speed control, is an electronic system that allows you to maintain a specific speed without manually controlling the accelerator pedal. The system uses sensors and electronic components to control the throttle and keep your car moving at a desired speed. First introduced in the late 1950s, cruise control has since become a standard feature in most modern vehicles you see on the road today.

How Does It Work?

At its core, cruise control involves a series of sensors that monitor the vehicle's speed and a control unit that regulates the throttle. When the driver sets the cruise control to a specific speed, the system adjusts the throttle to maintain that speed. If the car begins to slow down because of an incline (e.g. going up a hill), the system will open the throttle to accelerate. Conversely, if the car starts to speed up due to a declin (e.g. going downhill), the system will close the throttle to decelerate.

Modern cruise control systems also come with additional features like adaptive cruise control (ACC), which uses radar or cameras to detect vehicles ahead and automatically adjusts the speed to maintain a safe following distance (more on this BELOW).

The History of Cruise Control

The invention of cruise control can be traced back to the late 1940s and early 1950s, when engineer Ralph Teetor developed the first-speed control system. This innovative feature was designed to help drivers maintain a steady speed, reduce fatigue while driving, and improve fuel efficiency. Over the years, cruise control technology has undergone significant advancements, leading to the development of sophisticated systems like adaptive cruise control.

Types of Cruise Control Systems

Today, drivers can choose from a range of cruise control systems, each with its own unique features and functionalities.

Conventional Cruise Control

Conventional cruise control is like your old reliable friend. It's pretty basic and doesn't have any fancy bells and whistles. You just set the speed you want, and it'll keep your car cruising along at that speed, no problem. It's perfect for those long drives on open highways, but it doesn’t automatically react to other cars on the road.

So, if the car in front of you slows down, you'll need to step in and adjust your speed manually. This trusty system comes standard on most cars and is great for saving some fuel on those long road trips .

Adaptive Cruise Control (ACC)

Now, if conventional cruise control is your old reliable friend, then Adaptive Cruise Control (ACC) is like that friend's tech-savvy younger cousin. ACC isn't just maintaining your set speed, it's also keeping an eye on the car in front of you. If that car slows down, ACC slows your car down to keep a safe distance .

It's like having an extra set of eyes on the road, making highway driving a breeze. Plus, some ACC systems can even handle stop-and-go traffic, bringing your car to a full stop and then picking up speed again when traffic gets moving.

Predictive Cruise Control

Predictive Cruise Control is like the fortune teller of cruise control systems. It uses GPS and map data to see into the future and predict what's coming up on the road, like hills or curves, and adjusts your speed accordingly. This means you get a smoother ride and better fuel efficiency, but it all depends on the quality of the GPS and map data. If that's a bit out of date, your fortune-telling cruise control might not be so accurate. It's usually found in more high-end vehicles where top-notch fuel efficiency is a focus for the engineers.

Cooperative Adaptive Cruise Control (CACC)

And then we have Cooperative Adaptive Cruise Control, or CACC. This is like the team player of cruise control systems. It allows cars to talk to each other, coordinating their speeds to maintain a safe distance. It's like having a well-coordinated team of cars all working together to make the traffic flow smoother and reduce congestion. Picture it like a synchronized dance on the highway, where every car knows its place and keeps the right distance. This tech is still pretty new, but it's got a lot of potential. Imagine a future where traffic jams could be a thing of the past.

Remember, these systems are here to make your drive smoother and safer, but they're not a replacement for your attention. No matter how fancy your cruise control is, these systems can be greatly influenced by external conditions like weather and traffic, and they should always be used as aids, not replacements, for attentive driving.

Common Cruise Control Symbols and Indicators

Understanding the various symbols and indicators associated with cruise control is important for safe and effective usage. These symbols typically appear on the dashboard (or on the side of the steering wheel) and may include a speedometer icon, "SET," "RES" (resume), and "CANCEL". Be sure to consult your vehicle's owner's manual for specific details and explanations of these symbols.

Benefits of Using Cruise Control

Cruise control offers several benefits to drivers, especially during long road trips or highway driving.

Fuel Efficiency

One of the main advantages of using cruise control is improved fuel efficiency. By maintaining a constant speed, cruise control helps reduce fuel consumption, leading to better gas mileage. Rapid acceleration and deceleration, on the other hand, can lead to increased fuel consumption.

Comfort and Convenience

Cruise control allows drivers to take their foot off the accelerator pedal, reducing fatigue and improving comfort during long drives. It also helps drivers avoid unintentionally exceeding the speed limit by setting a maximum speed.

When used correctly, cruise control can contribute to safer driving. By maintaining a steady speed, it reduces the likelihood of erratic driving behavior and potential accidents. However, it is important to note that cruise control shouldn't be used in certain conditions, such as heavy traffic or slippery roads .

Troubleshooting Common Cruise Control Issues

Occasionally, you may encounter issues with your cruise control systems. Common problems include cruise control not engaging or disengaging unexpectedly. Possible causes may include a faulty brake light switch, malfunctioning sensors, or issues with the control module. If you experience any problems with your cruise control, it's best to have a qualified technician diagnose and repair the issue for you.

Cruise Control and Road Etiquette

Practicing proper road etiquette while using cruise control is essential for a safe and pleasant driving experience. Here are some tips on how to use cruise control courteously:

Avoid using cruise control in heavy or congested traffic, as it may hinder your ability to react quickly to changing conditions.
Be mindful of other drivers when setting your speed. Avoid setting a speed that's significantly slower or faster than the flow of traffic.
If you are in the passing lane and using cruise control, be sure to adjust your speed or temporarily disengage the system to allow faster-moving vehicles to pass.
Always signal your intentions, such as lane changes or exiting the highway, even when using cruise control.

The Future of Cruise Control Technology

Cruise control technology plays a vital role in the development of autonomous vehicles, or self-driving cars . In autonomous vehicles, cruise control systems work together with other advanced driver assistance systems (ADAS) to enable the vehicle to operate without direct driver input. These systems include lane-keeping assist, automatic emergency braking, and collision avoidance systems.

As autonomous vehicles become more sophisticated, cruise control technology is evolving to support higher levels of automation. For example, some autonomous vehicles are equipped with advanced cruise control systems that can navigate complex traffic scenarios, merge onto highways, and even change lanes autonomously.

While fully autonomous vehicles are still in the developmental stages, the integration of cruise control technology is a big step toward creating safer and more efficient transportation systems.

As automotive tech continues to advance, cruise control systems are becoming more intelligent and capable. Here are some potential developments we can expect to see in the future of cruise control technology:

Integration of artificial intelligence (AI) to improve decision-making and responsiveness in adaptive cruise control systems.
Enhanced connectivity and vehicle-to-vehicle (V2V) communication, enabling cars to share information about traffic conditions and coordinate their speeds for smoother traffic flow.
Greater customization and personalization options, allowing drivers to set preferences for cruise control behavior, such as following distance and speed adjustments.

Overall, the future of cruise control technology holds promise for creating a more seamless and enjoyable driving experience, with a focus on safety, comfort, and sustainability.

Debunking Myths About Cruise Control

Let's address and debunk some common misconceptions about cruise control:

Myth : Cruise control can be used as a substitute for driver attention.

Fact : Cruise control is a driver assistance feature, not a replacement for attentive driving. Drivers should always remain alert and ready to take control when necessary.

Myth : Cruise control increases the risk of accidents.

Fact : When used appropriately, cruise control can contribute to safer driving by maintaining a steady speed and reducing erratic driving behavior.

Cruise control is a valuable feature that can enhance your driving experience by providing comfort, convenience, and fuel efficiency. Remember to use it safely and appropriately based on driving conditions, and always stay attentive while on the road.

If you found this post informative and want to learn more about car features, driving tips, and automotive technology, be sure to subscribe to our newsletter for regular updates. We're here to help you stay informed and enhance your driving experience.

Frequently Asked Questions About Cruise Control

To further enhance your understanding of cruise control, here are answers to some common questions:

Q : Can cruise control be used in all weather conditions?

A : It isn't advisable to use cruise control in adverse weather conditions, such as heavy rain, snow, or icy roads, as it may reduce your ability to respond quickly to changing road conditions.

Q : Can I use cruise control in urban areas with frequent stop-and-go traffic?

A : Cruise control is best suited for open roads and highways with consistent traffic flow. It isn't recommended for use in urban areas with frequent stops or heavy traffic.

Q : Does cruise control work at any speed?

A : Cruise control typically has a minimum speed threshold, below which it can't be engaged. This threshold varies by vehicle, so check your owner's manual for specific information.

About the Author: This article was crafted by the LOOP Marketing Team. Comprising of seasoned professionals with expertise in the insurance industry, our team is dedicated to providing readers with accurate, up-to-date, and valuable information. At LOOP, we're passionate about helping families navigate the world of car insurance, ensuring they get the best coverage at the most affordable rates. Learn more about our mission and values here.

For more insights on auto insurance and other related topics, visit our blog .

Quick Navigation

Check out how much you could save today.

Browse related articles

What To Know About Speed Limits

When Should You Trade In Your Car?

Busting Common Driving Myths: Fact Vs Fiction On The Road

Life has many roads. your weekly navigator is just a click away..

Enter your email below to receive occasional updates in your inbox.

< Back to email setting

Cruise Control: What It Is and How to Use It

How to use cruise control.

The location of the cruise control buttons can vary per car. For your car, check the manufacturer’s manual for the location and specific instructions. To set cruise control, press the ON/OFF button or switch. If you press this button again, it typically turns the system off. The Res + (resume / increase seed) button increases the cruising speed by 1 mph, while the Set – (set speed / reduce speed) button decreases it by 1 mph. To shut off the cruise control, you can press the Cancel button or simply press the brake pedal. [1]

What is cruise control?

Cruise control locks your car’s accelerator at a specific speed, allowing you to take your foot off the pedal and remain at a constant speed. Because it’s so convenient for commuters and drivers who use the highway frequently, cruise control is a feature that generally comes standard on most models of cars. [2]

What is adaptive cruise control?

Adaptive cruise control is very similar to conventional cruise control, only it automatically adjusts the speed of your vehicle depending on how fast the vehicle in front of you is going. It may also reduce your speed around tight curves and adjust to speed limit changes, depending on your car’s technology. [3]

How to set cruise control

Follow these steps when setting the cruise control:

Evaluate weather conditions: Check for hazardous weather conditions and any oncoming obstacles before applying cruise control.
Build your speed: The ideal speed for cruise control is between 55 and 70 mph.
Turn cruise control on: The button is usually on or near your steering wheel.
Set cruise control: Press another button on your steering wheel and remove your foot from the accelerator.
Watch the road carefully: You will have a slower reaction time if your foot is off of the brake or accelerator pedal. [1]

How does cruise control work?

Cruise control adjusts the throttle position in your car to control your speed. It does this by a cable connected to an actuator, instead of just by pressing the pedal to adjust the speed. [4]

Cruise control safety tips

Follow these safety tips while using cruise control on the road:

Use it only on highways: Roads with lower speeds often have traffic lights, turns and other cars that require frequent stops.
Don’t use it in heavy traffic: If you hit traffic and use the brakes a lot, cruise control isn’t ideal.
Don’t use it on wet streets: Wet roads are dangerous, and it’s important to keep control of your car and its speed in those conditions.
Keep your distance from other cars: A set speed could cause you to get dangerously close to other vehicles. Not every car as the distance-monitoring system that adjusts your car’s speed based on what’s in front of you.
Hover your foot over the brake: Always be prepared to break whenever necessary.
Be aware of your surroundings: Look out for other cars on the road and stay in your lane. [5]

Cruise control when it’s raining

Avoid using cruise control when the roads are wet . You might not be able to stop as quickly as you’d like when using cruise control. This could lead to dangerous situations and even accidents. Wet roads can affect your car’s ability to maintain a constant speed. There’s even a possibility if you’re using cruise control while it’s raining that your vehicle could hydroplane . [6]

Frequently asked questions about cruise control

Does cruise control save gas.

Cruise control can help you save an average of 7% to 14% on gas. When you don’t use cruise control and constantly press the accelerator and brake pedals, more gas is usually used. Cruise control works best to save gas when driving on flat roads that are free of congestion. [7]

Is cruise control bad for your card?

In general, cruise control isn’t bad for your car. It can actually reduce heavy acceleration and deceleration. It doesn’t damage your car in any way, and the frequent use of it doesn’t affect your vehicle. [8]

Is cruise control safe?

Cruise control is convenient for long stretches of driving and it can keep you from speeding if you set your speed to the correct limit. However, if the road conditions are rainy or snowy, cruise control can be dangerous. To use cruise control safely, it’s best to know when you should and shouldn’t use it. [9] Using cruise control on the highway makes your driving more predictable to other drivers. Instead of constantly changing speeds, cars know how fast you’re driving and can follow safely behind you or pass.

When should cruise control not be used?

You shouldn’t use cruise control in the following conditions:

When the roads are wet and slippery.
During heavy traffic.
On hills and winding roads. [9]

[1] “What is cruise control?” kia.com/dm/discover-kia/ask/what-is-cruise-control.html (accessed July 11, 2023).

[2] “How to Use Cruise Control: 7 Specific Things You Need to Know Well,” driving-tests.org/beginner-drivers/how-to-use-cruise-control (accessed July 11, 2023).

[3] “What Is Adaptive Cruise Control? Is It Worth Paying For?” Stefan Ogbac, motortrend.com/features/adaptive-cruise-control (accessed June 2, 2020).

[4] “How Cruise Control Systems Work,” Karim Nice auto.howstuffworks.com/cruise-control.htm (accessed Feb. 9, 2021).

[5] “6 Cruise Control Safety Tips You Should Never Ignore,” Marisol Pereira and Carrie Adkins, getjerry.com/advice/6-cruise-control-safety-tips-you-should-never-ignore-by-marisol-pereira (accessed April 27, 2022).

[6] “How Does the Cruise Control in Cars Work?” mapfreinsurance.com/blog/how-does-cruise-control-in-cars-work (accessed July 11, 2023).

[7] “Does cruise control save gas?” kia.com/dm/discover-kia/ask/does-cruise-control-save-gas.html (accessed July 11, 2023).

[8] “Everything You Need to Know about Cruise Control,” Dave Johnston, mycarmakesnoise.com/electronics/cruise-control-guide (accessed July 11, 2023).

[9] “Is Cruise Control Safe to Use?” kaufmanlawatlanta.com/is-cruise-control-safe-to-use (accessed July 11, 2023).

Disclaimer:

The information included here is designed for informational purposes only. It is not legal, tax, financial or any other sort of advice, nor is it a substitute for such advice. The information may not apply to your specific situation. We have tried to make sure the information is accurate, but it could be outdated or even inaccurate in parts. It is the reader’s responsibility to comply with any applicable local, state or federal regulations. Nationwide Mutual Insurance Company, its affiliates and their employees make no warranties about the information nor guarantee of results, and they assume no liability in connection with the information provided. Nationwide and the Nationwide N and Eagle are service marks of Nationwide Mutual Insurance Company. © 2024 Nationwide

12 reasons why your car won’t start.

It’s one of the worst things that can happen to a driver. You turn the key in your car’s ignition, perhaps hear a few alarming noises and then nothing. Whether...

Tire Rotation Overview: Why and When to Do It

Keeping your tires in good condition can be the difference between a safe ride and an accident. If your tires wear or get misaligned over time, this can lead to...

Why Are My Brakes Making Noise?

Have you ever been confused as to the sounds coming from your vehicle when you brake? From grinding and rattling to thumping and squealing, you can learn how to decode...

How Does Cruise Control Work?

Cruise control is awesome, be it regular or adaptive cruise. But, how does cruise control work, and can you trust it while driving?

We invented cars as means of transportation, to go faster and to go further. But the evolution of cars didn't stop there. Comfort has become a necessity, leading to the invention of features purely for driver convenience—features such as cruise control.

Cruise control lets you take your foot off the gas pedal without your car losing speed. With cruise control, you enter the speed, and then the car keeps cruising at that speed.

It's bliss for driving long distances on highways, but how does cruise control actually work?

What Is Cruise Control?

Cruise control is a driving assist that maintains a constant driving speed without your foot on the gas pedal. Cruise control has been around for a long time, but only in the past few years has it become more common in economy cars.

There are various types of cruise control mechanisms, and these usually work according to the type of throttle system in your car. However, some manufacturers take this feature to the next level with adaptive cruise control, automatically altering cruise speed.

Cruise control has evolved many times since it was first used in automobiles. As mentioned before, cruise control's working mechanism revolves around the throttle system. Right now, there are mostly two types of throttle systems in the cars you see out in the streets: the older cable throttle and the newer drive-by-wire throttle.

Cruise Control in Older Cars with Cable Throttle

Cable throttle systems use mechanical connections, and thus, the cruise control on these cars works mechanically as well.

In cars with cable throttle systems, the cruise control actuator is connected to the throttle body through a cable on one side. On the other side, the actuator is connected to a pump.

Most cruise control actuators in cable throttle bodies use a set of springs and rely on vacuum pressure. The pump connected to the actuator creates a vacuum that tightens the springs in the actuator and this, in turn, puts tension on the cable. This cable is connected to the throttle body, and when the actuator puts tension on the cable, the throttle body opens in response. This ultimately gives your car gas without the gas pedal being used.

Related: What Is an Immobilizer and Does My Car Have One?

Now remains the question of how a specific speed is set for the actuator. This all goes through the car's electronic control unit or ECU. You press a button in your car to activate cruise control, and the ECU powers the pump in just the right amount to put the right tension on the cable. Lo and behold your car drives without your foot on the gas pedal!

The ECU also takes info from the speed sensor to see if the current speed and the target speed match. If your car is going faster than it should, then the ECU will release some tension on the cable, and if it's going slower, it will increase the tension.

Some cars use valves instead of pumps to create the vacuum in the cruise control actuator. In that case, the ECU is responsible for opening and closing that valve.

Keep in mind that there are various types of cruise control actuators, and not all use springs, though most do.

Cruise Control in Newer Cars with Drive-By-Wire Throttle

The cruise control system in newer cars with drive-by-wire throttle bodies is entirely electronic. Since there are no mechanical parts involved, the ECU gets the current speed and decreases or increases it to reach the target speed.

In these cars, the ECU talks directly to the electronic control module (ECM). The ECM is responsible for controlling the throttle body to accelerate or decelerate. Once you set your preferred speed, the ECU grabs that and sorts it out with the ECM and just like that, your car drives at your preferred speed.

How Does Adaptive Cruise Control Work?

Adaptive cruise control (ACC) is an advanced form of cruise control that takes in information from sensors other than the speed sensor to determine the ideal speed in real-time.

ACC talks to proximity sensors such as radar and lidar, speed sensors, and a combination of cameras to take in the other vehicles on the road and the road itself. Once the signals are received and processed, ACC determines the safe distance and speed.

This system then alters the speed accordingly, reducing your car's speed if you're getting too close to another car in front or if you're nearing a turn. Once the road is clear, ACC accelerates the car to the target speed you have set.

In some cars, ACC can even trigger the brake systems to decelerate the car quickly in case the car in front suddenly brakes or a hazard appears.

Related: How Does Adaptive High Beam Assistance Work?

Cruise Control in Motorcycles

Unlike cars, motorcycles don't have gas pedals. They have gas handles instead. Unfortunately, holding a gas handle for a long duration is much more frustrating than holding a gas pedal. This nuisance has called for a technology similar to cruise control in function but different in design: throttle lock.

Throttle lock functions similarly to cruise control in cable throttle cars, except it skips the actuator and the ECU and directly deals with the throttle body.

Throttle lock works by locking the throttle cable and maintaining a constant amount of tension on the cable. This keeps the motorcycle cruising at a steady speed.

The simplicity of the throttle lock has a catch. Throttle lock doesn't check in with the speed sensors to see if it's going any faster or slower than the target speed, so it only works well on flat roads.

When to Use (and Not to Use!) Cruise Control

Use cruise control on straight roads with little traffic. As a safety measure, braking will disengage cruise control, and on a road with lots of vehicles, you'll need to brake often.

Cars naturally decelerate when you take your foot off the gas pedal, but that won't be the case when you have cruise control activated. It might be too late by the time you hit the brakes when you use cruise control on a crowded road.

This also goes for roads with lots of turns and twists. Entering a sharp turn with high speed is often dangerous. Put the turns behind you and once you have a straight road, engage the cruise control.

Though the point of cruise control is to make your ride more comfortable, it's prone to make you a bit too comfortable. Falling asleep behind the wheels with cruise control engaged is likelier to happen. Albeit this time, the car won't decelerate and will keep going.

Related: Standalone vs. Integrated Car Navigation Systems: What's the Best Option?

Adaptive cruise control solves most of the limitations that come with ordinary cruise control systems, but it still isn't flawless. Adaptive cruise control relies on your car's sensors to decide the appropriate speed, and these sensors can get blocked in bad weather. Snow, mud, rain, and other natural hazards can get in the way of your car's sensors and make the adaptive cruise control less reliable.

Adaptive cruise control has limited access to the braking system, and it won't be able to stop a head-on collision. Use the brakes yourself and remember that cruise control is only a driver assist feature, not an autopiloting system.

With this in mind, please take full control of your vehicle in bad weather and tricky roads. Don't trust the cruise control, be it normal or adaptive.

Cruising with Control

The cruise control system was first strictly found on high-end luxury cars, but now even economy cars are often equipped with this feature. This system makes driving long trips much easier, as you don't have to keep your foot on the gas pedal for hours.

Though cruise control makes things easier, it doesn't mean that you should use cruise control all the time. There are times where you need to take things into your own hands.

Cruise Control Explained – All You Need to Know

Cruise control has come a long way since first invented and patented by Ralph Teetor in 1950, who originally named it the “Speedostat”. Chrysler Corporation was the first manufacturer to offer the groundbreaking mechanism as an option on several of its luxury vehicle models nine years later. Today, cruise control is rapidly becoming the standard on all new vehicles, providing drivers with increased convenience on their daily drive.

As you’re learning how to operate a vehicle , understanding cruise control will help increase your comfort behind the wheel and knowledge of driving.

What is Cruise Control?

Cruise control is an electronic device within your vehicle that controls the speed of your vehicle. It allows the driver to maintain a constant speed of 25 mph without holding their foot on the accelerator. Although the feature has been around for 70 years, automotive manufacturers continue to improve upon the technology to provide drivers with increased comfort, luxury, and convenience whenever they’re behind the wheel.

cars driving on a freeway with little traffic

Different Types of Cruise Control

There are 3 types of cruise control systems.

Speed Limiter
Adaptive Cruise Control
Semi-autonomous Cruise Control

What is a Speed Limiter?

A speed limiter will limit how fast the driver can accelerate behind the wheel. All modern vehicles contain a standard speed limiter capping speed between 120 mph and 180 mph depending to protect the vehicle’s engine and discourage reckless driving. However, an additional limiter can be added as an option in many European-made cars, as well as Tesla, Ford, and Nissan. Drivers are still required to keep their foot on the pedal to keep their vehicle in motion, but will not be able to accelerate past a predefined speed limit.

What is Adaptive Cruise Control?

Adaptive cruise c ontrol uses sensors around the vehicle’s exterior to maintain speed while keeping a safe following distance from the car ahead. The system will slow you down and speed you up as the flow of traffic fluctuates throughout your commute, removing a lot of the stress from daily driving. However, adaptive cruise control may not work well in bad weather or protect you from sudden movements, so you will want to always keep your full attention on the road.

What is Semi-autonomous Cruise Control?

Luxury automakers such as Tesla and Audi are implementing the newest rendition of cruise control on their latest vehicle models – Semi-autonomous Cruise Control. It works largely the same as adaptive cruise control, but assists drivers with lane guidance and steering. There are several variations of semi-autonomous cruise control that include additional convenience features for the driver.

How to Use Cruise Control – 6 Step Guide

These are the steps to using cruise control effectively.

Observe weather conditions
Build speed
Engage cruise control
Set cruise control
Watch the road and steer
Brake to disengage

1 – Observe weather conditions

As mentioned, cruise control may become inconsistent in rainy, snowy, or otherwise hazardous conditions. If you must drive in this situation, it may be a better idea to do so manually. Cruise control works best on a clear day with constant traffic flow.

2 – Build speed

Accelerate to your desired speed as you prepare to activate cruise control. US highways have posted speed limits between 55 mph and 75 mph. Do not attempt to set cruise control when you are traveling over the speed limit.

3 – Engage cruise control

Once you’ve reached your desired speed, engage the cruise control. This step will vary widely based on your vehicle make and model, however, many cruise control settings are accessible from the steering wheel controls. Check your owner’s manual for further information.

4 – Set cruise control

After turning on cruise control, you’ll need to set your desired speed. Many systems set the cruise control at the current speed, while others require you to manually set one. You can increase and decrease this speed as needed without interrupting the mechanism.

5 – Watch the road and steer

Watching the road is essential when cruise control is engaged. Cruise control is not a substitute for a human driver and will require supervision at every step. If you are using a semi-autonomous system, you will not need to steer but will need to keep at least one hand on the wheel for safety measures.

6 – Brake to disengage

When cruise control is no longer needed, or you need to quickly make a maneuver, simply apply pressure to the brakes to disengage the system. Once deactivated, you will be in full control of your vehicle once again.

When NOT to Use Cruise Control

While cruise control is a convenient feature for modern drivers, it is not perfect for all circumstances. In fact, utilizing the system can be quite dangerous if you’re not careful. Be sure not to use cruise control under these conditions.

Heavy Traffic

Heavy, or stop-and-go traffic is not ideal for safely using cruise control. When engaging cruise control on the highway, ensure your lane is clear and there are no vehicles stopping ahead.

Wet or Icy Conditions

You need to be driving slowly while on wet and icy roads. While cruise control keeps a constant, predetermined speed, it takes away a lot of the manual control needed to stay safe when it’s raining or snowing.

City Driving

While driving through the city, you’ll face a number of stop lights and stop signs that will require manual braking. This action will automatically disengage cruise control.

Winding Roads

Winding roads require more attention than straight, flat streets. Cruise control systems, even adaptable cruise control, may not always detect these streets correctly, causing accidents.

Fatigued Driving

Driving while fatigued is never a good idea, but even less so while using cruise control. Utilizing the system may add to your fatigue, as you give your vehicle more control of the journey. If you’re even the least bit tired, you should never turn on cruise control.

As you can see, cruise control is a great way to relieve much of the stress that comes with everyday driving. The constant rate of speed can also drastically improve fuel efficiency for longer drivers. Cruise control has had a positive impact on the driving industry for 70 years and shows no signs of disappearing anytime soon.

550+ exam-like questions

All you need to ace your test

Perfect for first-timers, renewals and senior citizens

Driving School Costs Report – The Cheapest and Most Expensive States

For many, the ability to drive is not just about mobility—it’s a rite of passage that symbolizes freedom and the thrill of charting one’s own course. the anticipation of sitting behind the wheel for the first time is a universal dream, yet for many aspiring drivers in the united states, this dream comes with variable […].

Distracted Driving Report – The States With the Least and Most Distracted Driving

In april 2024, the national highway traffic safety administration (nhtsa) released data for 2022 that illustrated traffic deaths due to distracted driving increased by 12 percent from 2020 but decreased compared to 2021 to 6%. every year, thousands of drivers and passengers are fatally injured as a result of distracted driving. in 2022, roughly 2,109 […].

Traffic Safety is Crucial to Your Business

By kristin pettway, drive smart virginia april is distracted driving awareness month and the perfect opportunity for workplaces to review their traffic safety policies and communications. traffic crashes are the leading cause of workplace deaths in america. even if you don’t have a fleet of vehicles, safe driving should still matter to your business. after […].

Ace your DMV test, guaranteed

Get started

Best of the Zutobi blog

Learner’s Permit Ultimate Guide
Driving Test Ultimate Guide
Traffic Lights Guide
How to Pass the DMV Permit Test
How to Pass the Driving Test
Common Reasons For Failing the Road Test
International Driver’s Permit Guide
Driver’s License Renewal
How to Get Your US Driver’s License
How to Prepare for Your Road Test
How to Get a Driver’s Permit
Behind-The-Wheel training
Terms & conditions
Privacy policy
Do Not Sell My Personal Information
Subscription terms
Terms & policies

Practice Tests

Car Practice Tests
CDL Practice Tests
Motorcycle Practice Tests

Hyundai, Genesis recall over 8,000 vehicles in Canada over power loss risk

Motor mouth: hybrid cars to the rescue, lorraine explains: a breathalyzer at every traffic stop, is this 1985 chevy camaro iroc-z worth us$100,000, 2025 toyota 4runner gets four cylinders, upgraded interior, what is cruise control a comprehensive guide.

When the system is set, cruise control will maintain a steady speed for your vehicle

You can save this article by registering for free here . Or sign-in if you have an account.

Article content

Your vehicle’s cruise control system unlocks numerous benefits at the touch of a button — but according to web search data, drivers still have plenty of questions about what it is, what it does, and how it works.

What is Cruise Control? A Comprehensive Guide Back to video

Below, we’ll answer some of the most popular Internet search questions about cruise control, so you can make the best use of this important system.

What is Cruise Control?

With cruise control, your vehicle will maintain a steady speed when the system is set.

What is adaptive cruise control?

With adaptive cruise control, the vehicle will also automatically slow down and speed up to maintain a safe position in traffic.

How does cruise control work?

Cruise control work with a manual transmission just the same way it does with an automatic. Drivers set their cruising speed with a button press, and the system works the throttle automatically to maintain the desired cruising speed as evenly as possible. In some vehicles with a manual transmission, pressing the clutch pedal to shift gears turns the cruise control off, requiring an additional button press to reengage it after a gear change.

In other cars with a manual transmission, pressing the clutch pedal simply pauses the cruise control system a moment, allowing drivers to complete their gearshift. When they’ve released the clutch, the cruise control picks up where it left off — no additional button press required.

Is cruise control more fuel efficient?

Yes. Increasing your vehicle’s speed uses fuel. While cruising, even a highly competent driver who isn’t using cruise control will tend to slow down and speed up in a repeated cycle, possibly several times per minute. Though fluctuations in speed may be slight, they do cause your engine to use more fuel than required. Point is, the more time you spend at a steady speed, the less fuel your engine needs.

For most drivers, using cruise control on the highway at 80 km/h can reduce fuel consumption by about 20 per cent. For drivers who find difficulty in maintaining a steady speed and frequently experience big fluctuations, using cruise control can cut fuel use by over 40 per cent.

Depending on what you drive and how fast you drive it, using cruise control could save you between $4 and $20 per hour — based on information from Natural Resources Canada that shows most drivers who don’t use cruise control on the highway will tend to experience a 10 km/h speed fluctuation about three times per minute.

Drivers who have the most difficulty managing their cruising speed could be using 60 per cent more fuel than they need to.

Is cruise control bad for your transmission?

No. Your vehicle’s engine, transmission and other components are designed to work hand-in-hand with its cruise control system and are extensively tested and integrated with one another for trouble-free performance.

Using cruise control also reduces wear and tear on both your engine and transmission by running things more smoothly and steadily, and reducing workload on both components.

Can you add cruise control to a car?

Yes. Depending on the year, make and model, cruise control may be available for add-on or retrofit. Professional installation is recommended, and you’ll want to talk to a professional about the specific availability of parts and integration for your vehicle.

In many cases with modern cars, it’s generally easier and more cost effective to just opt for a unit equipped with cruise control from the factory. Cruise control is widely available as standard equipment on most modern vehicles.

Can cruise control get stuck?

Yes , but it’s extremely rare. Older cable-based cruise control systems seem more prone to this rare problem, in which the cable can slip or bind, making the throttle stick into position. More modern vehicles with electronic throttle and monitoring systems make this problem even less likely.

If the cruise control on your car fails to disengage when you want to slow down, slip the vehicle into neutral to disconnect drive power from the wheels, pull over, and address the situation.

However, chances are, you’ll never experience this problem.

When should cruise control be used?

Any time you’re trying to drive at a constant speed. Whether around town at 60 km/h, in a residential area at 40 km/h, or out on the highway at 105 km/h, switching the cruise control on makes for a smoother and more fuel efficient drive that’s easier on your engine and transmission. it can also help you do your part to maintain the steady and efficient flow of traffic.

Most cruise control systems can be engaged at speeds above 30 km/h.

When should cruise control not be used?

Any time you can’t safely drive at a steady speed. If the road surface is snowy, icy, slushy or very wet, you’ll want to think twice about switching your cruise control on.

In older cars, having your cruise control engaged on a wet or icy road could allow the vehicle to accelerate or experience wheelspin when driven wheels encounter a low-traction surface. Here, the cruise control system maintains throttle pressure, even in situations where it should be released instead. This could lead to a loss of control.

In more modern vehicles, electronic monitoring is used to automatically disengage cruise control when one of the following happens:

one or more wheels slip
one or more wheels leave the surface of the road after a major bump or dip
the wipers are set to the maximum speed setting in heavy rain

Use your judgement. Safely navigating certain slippery or dangerous driving conditions requires careful manual control of your vehicle’s throttle, and in these situations, you’re best to leave the cruise control off.

What causes cruise control to kick off?

If the cruise control in your vehicle suddenly kicks off, a few things may be to blame.

Sometimes, cruise control disengages automatically when the vehicle’s automatic wipers detect heavy rainfall, or when a wheel spins or (briefly) leaves the surface of the road after a big bump or dip. In other situations, there may be a problem with one or more sensors or switches, including the brake pedal switch, throttle position sensor, or one or more wheel speed sensors.

Your modern cruise control system relies on various sensors and switches to do its job properly. As a failsafe, any problem with these sensors can cause the cruise control system to go offline. If you notice this happening regularly, have your vehicle diagnosed by a professional.

Will the cruise control work with an ABS light on?

Probably not. Your car’s Antilock Braking System works hand-in-hand with your cruise control system, and any fault with the ABS system will typically take your cruise control offline until it’s fixed.

An ABS warning light in your instrument cluster can indicate one of several major problems or malfunctions, so be sure to have a professional investigate as quickly as possible.

Will cruise control apply the brakes?

No, but adaptive cruise control will. Standard cruise control (simply called cruise control) holds your vehicle’s speed as constant as possible once set. More advanced adaptive cruise control systems use camera or radar-based sensing to determine the traffic situation in front of your vehicle, and can automatically apply the brakes to maintain a pre-set following distance.

With cruise control, drivers need to brake to slow down as they close in on a slower vehicle in traffic. With adaptive cruise control, the system makes these braking inputs automatically, and the vehicle speeds back up to its pre-set cruising speed once traffic clears.

Before you buy, be sure to determine which type of cruise control system is fitted to the car you’re considering.

What is Super Cruise?

Super Cruise is a next-level driver assistance feature available on certain GM vehicles.

With Super Cruise, the vehicle uses special GPS hardware and sensors to accurately compare its position to a 3D map of pre-qualified highways .

On these pre-qualified highways, Super Cruise allows drivers to go hands-free for extended periods as the vehicle automatically maintains its cruising speed, adjusts that speed for changing traffic conditions, and even precisely follows the curves in the road. It can even make hands-free lane changes.

Super Cruise is not an autonomous system, and in order for it to work, drivers need to keep their eyes on the road — there’s even a camera that monitors the position of the driver’s eyes to make sure they’re focused on the road ahead.

Commercial trucks are going electric, but it's going to be a long road
Evolutionary: The Mercedes-Benz G-Wagen has never strayed far from its roots
How to jump-start a car—a step-by-step guide
Testing Mitsubishi’s AWD systems and Snow mode on ice
12 things to know about the 2025 Ram 1500 Ramcharger REx

Justin Pritchard

Justin Pritchard is an experienced motoring expert whose work is read and watched by Canadians across the country on a weekly basis. Starting his career at Auto123.com back in 2005 (while finishing his final year of studies at Laurentian University in Sudbury, Ontario), Justin quickly applied his passion for writing, presenting, and photography, working under some of the most recognized editors in the Canadian motoring scene.

Justin has written one of the largest collections of used car buyer guides on the internet, and his TV program, AutoPilot, has aired over 600 episodes across 16 seasons. Presently, AutoPilot is the only English-language motoring program on Canadian cable TV, though he's lent his informative style and easy-to-identify voice to video features for Youtube, Driving.ca, Autotrader.ca, Motoring TV, and elsewhere. With 4 years as co-chair of the Canadian Car of the Year Awards (CCOTY) program, a passion for vehicle testing shines though in all of his work.

A passion for photography from a young age makes Justin as comfortable behind the camera as in front of it, and capturing motoring memories from the scenery of beautiful Northern Ontario is a priority in much of his work. The particularly harsh winter climate in this part of Canada makes Justin a particular expert on winter driving, winter tires, and extreme-weather safety.

Major awards won by the author

Contact info.

Youtube: @JustinPritchard

Postmedia is committed to maintaining a lively but civil forum for discussion. Please keep comments relevant and respectful. Comments may take up to an hour to appear on the site. You will receive an email if there is a reply to your comment, an update to a thread you follow or if a user you follow comments. Visit our Community Guidelines for more information.

Affordable EVs

Small trucks

Popular Crossover SUVs

Practical 3-row SUVs

Minivans for the whole family

Compact Cars

Luxury SUVs

Affordable AWD SUVs

All things automotive: breaking news, reviews and more. Wednesdays and Saturdays.

There was an error, please provide a valid email address.

A welcome email is on its way. If you don't see it, please check your junk folder.

The next issue of Driving.ca's Blind-Spot Monitor will soon be in your inbox.

We encountered an issue signing you up. Please try again

Best retrofit Apple CarPlay and Android Auto units

You don't need to buy a new car to add Apple CarPlay or Android Auto.

5 Essential car accessories every driver should buy

There's lots of aftermarket gear out there, but get these add-ons first—they'll make your daily drive more comfortable and safe

The top 5 best motorcycle accessories we've tested

After 40 years of testing motorcycles, these are the five pieces of gear David Booth can’t and won’t live without

Tools you'll need for DIY tire swaps

Changing tires twice a year, it won’t take many seasonal swaps to pay for your investment

Top car organizers to declutter the cabin

Discover some of the top-rated car organizers that will help declutter the car and arrange belongings for a hassle free drive

This website uses cookies to personalize your content (including ads), and allows us to analyze our traffic. Read more about cookies here . By continuing to use our site, you agree to our Terms of Service and Privacy Policy .

Edit your picks to remove vehicles if you want to add different ones.

You can only add up to 5 vehicles to your picks.

Looks like you've reached your saved article limit!

You can manage your saved articles in your account and clicking the X located at the bottom right of the article.

What is Cruise Control and How Does it Function in a Car?

A Quick Overview

Driving on long stretches of highway can be tiring, especially when trying to maintain a constant speed. Cruise control alleviates this by allowing drivers to set and maintain a desired speed without continuous use of the accelerator pedal. Understanding how cruise control functions can help drivers make the most of this convenient feature.

What is Cruise Control?

Cruise control is an automotive feature that enables drivers to set a desired speed for their vehicle. Once activated, the cruise control system maintains the set speed without the need for constant pedal input. It helps drivers maintain a steady pace on long trips, providing convenience and reducing the likelihood of unintentional speed fluctuations.

How Does Cruise Control Function?

Cruise control systems may vary slightly among different vehicle models, but they generally function using the following components and controls:

1. Set Button

To activate cruise control, the driver typically presses a “Set” button or engages a switch on the steering wheel or dashboard. This action captures the current speed of the vehicle and sets it as the target speed for the cruise control system to maintain.

2. Speed Control

Once the cruise control system is activated, the driver can adjust the speed using speed control buttons. These buttons allow the driver to increase or decrease the set speed in small increments. By pressing the appropriate button, the driver can fine-tune the desired speed for their comfort and road conditions.

3. Resume Button

The “Resume” button, also known as the “Accel” button, allows the driver to restore the previously set speed after it has been canceled or temporarily interrupted. When the driver presses the “Resume” button, the cruise control system accelerates the vehicle to the previously set speed.

4. Cancel Button

The “Cancel” button, often marked with the symbol “CRUISE” or “OFF,” deactivates the cruise control system. Pressing this button disengages the system and allows the driver to regain full control over acceleration and braking. It is important to note that the brake pedal can also automatically deactivate cruise control when pressed.

Advantages of Cruise Control

Cruise control offers several advantages to drivers:

Reduced Driver Fatigue: Cruise control allows drivers to maintain a steady speed without continuously pressing the accelerator pedal, reducing fatigue on long drives.
Improved Fuel Efficiency: By maintaining a consistent speed, cruise control can help optimize fuel efficiency by reducing unnecessary acceleration and deceleration.
Avoiding Speeding: Cruise control helps drivers adhere to speed limits by maintaining a set speed, preventing unintentional speeding due to variations in foot pressure on the accelerator pedal.

Limitations of Cruise Control

While cruise control provides convenience, there are limitations to consider:

Traffic and Safety: Cruise control should be used only in appropriate situations. It is important to remain vigilant and be ready to take control of the vehicle when necessary, such as in heavy traffic or hazardous road conditions.
Hilly Terrain: Cruise control may struggle to maintain a constant speed on hilly terrain, as it cannot anticipate changes in elevation. In such situations, the driver may need to manually intervene and adjust the speed accordingly.

👉 You may also like - A Deep Dive into the Adaptive Cruise Control System. What Is It?

What is cruise control?

Cruise control is a technology in cars that allows drivers to maintain a constant speed without keeping their foot on the accelerator. The feature is commonly used during long drives on highways or other open roads.

How does cruise control work?

When cruise control is activated, the driver sets a desired speed for the car to maintain. The car’s engine and transmission work together to maintain that speed without any input from the driver.

Is it safe to use cruise control while driving?

Yes, cruise control is generally safe to use while driving. However, drivers should remain attentive and ready to take control of the car at any moment. It’s also important to note that cruise control should not be used in hazardous weather or road conditions.

What are the benefits of using cruise control?

Using cruise control can improve fuel efficiency by helping drivers maintain a consistent speed and reduce unnecessary acceleration. It can also reduce driver fatigue during long drives by allowing them to rest their feet.

Can all cars have cruise control installed?

Not all cars come with cruise control as a standard feature, but many newer cars do have this option available. Additionally, aftermarket cruise control systems can be installed on most cars.

Can cruise control be dangerous?

Cruise control can become dangerous if the driver becomes too reliant on it and fails to remain attentive. Additionally, using cruise control in hazardous conditions, such as heavy traffic or inclement weather, can be dangerous.

Does cruise control work on manual transmission cars?

Cruise control can be installed on manual transmission cars, but it requires a more advanced system than the one used for automatic transmissions. Manual transmission cruise control systems are typically more expensive and less common.

Is Bypassing the Crank Position Sensor Possible? Here's How

A guide to wiring 1, 2, 3, 4 wire oxygen sensors. detailed diagrams.

Mastering ASE Testing - The Ultimate Guide for Success

Keeping Current - Charging System Diagnosis and Repair

The complete ASE practice test with answers and explanations

Enhancing the Ride - Accessories Diagnosis and Repair

5 Reasons Why Your Cruise Control Stopped Working

Updated: March 15, 2023

It would be difficult to find a vehicle on the road today without cruise control. This invaluable feature makes driving long distances easier but can also cause trouble when it malfunctions. Understanding the reasons your cruise control stopped working ensures that you can get the problem fixed quickly for a more enjoyable ride.

While this fault can cause issues with the cruise control system itself, there could also be an effect on the acceleration of your vehicle. That’s why you want to have it looked at as soon as you notice a problem. Let’s take a quick look at the reasons your cruise control may have stopped working.

Reasons Why Your Cruise Control Stopped Working

The most common reason a cruise control stops working is due to a blown fuse or a defective brake pedal switch . It can also be caused by issues with the throttle control system or the ABS. In older cruise control systems, it can be caused by a broken vacuum line.

Here is a more detailed list of the possible reasons your cruise control is not working:

1. Blown Fuse

All electrical systems in the vehicle are controlled by fuses. Your cruise control system is attached to a fuse that can blow if there is a short circuit or fault. Without a good fuse, the cruise control system can’t work at all.

Thankfully, it’s not difficult to find and replace a blown fuse. Look in the owner’s manual to find the fuse that corresponds with the cruise control technology.

2. Defective Brake Pedal Switch

The brake pedal switch is responsible for turning the brake lights on and off based on the pedal position. Cruise control systems are designed to disengage whenever your brake pedal gets pressed.

Because the cruise control is wired into the brake pedal switch, any fault can cause it to stop working. When the brake pedal switch malfunctions, the car believes the brakes are engaged, causing the system to turn off automatically. Not only that, but your car’s brake light might also be stuck on, leaving confused drivers in your wake.

3. Malfunctioning Speed Sensor

Speed sensors are located on every wheel or differential. The purpose of these sensors is to monitor the speed of the wheels to determine if traction control is needed.

The speed sensors are also part of the cruise control system. When a sensor fails, the cruise control can stop working and the speedometer might act strange as well.

If there is an issue with a speed sensor, it will often show with an ABS warning light or a check engine light on the dashboard.

RELATED: 3 Symptoms of a Bad ABS Wheel Speed Sensor

4. Electrical Issues

The cruise control system is electronic, with many components working together to make the system operate. If the cruise control fails to work, you want to check the wiring harness and associated connectors for a fault.

You also need to ensure that the voltage source is supplying enough power to the system. Even the smallest fault can cause defects with the cruise control. In many cases, there can be an issue with the cruise control lever or buttons causing the cruise control to not engage.

If your cruise control buttons are located on the steering wheel it could also be caused by a bad clock spring, which is located behind the steering wheel.

Check the system with an OBD2 scanner to look for any trouble codes related to the cruise control.

RELATED: 5 Symptoms of a Broken Clock Spring, Location & Replacement Cost

5. Damaged Vacuum Actuator, Hoses or Cable (Older cruise control)

If you drive an older vehicle with cruise control, you might have an issue with the vacuum actuator or the cable that connects to the throttle. If there has been damage done to the vacuum hoses or the actuator, the cruise control will stop working altogether.

Additionally, the cable linking the actuator to the throttle must be in good shape. If it has been broken, the cruise control will fail.

What is Cruise Control?

Cruise control is a feature that is used when you are traveling at a consistent speed. Cruise control was first introduced for automobiles in the 1950s. However, it took many years before it became a staple in the modern vehicle.

This electrical system allows you to set a predetermined speed and take your foot off of the gas pedal. If you are on a long drive, there is less fatigue because you don’t have to try to maintain your speed. Cruise control can also benefit fuel economy because the vehicle uses less fuel when traveling steadily.

In newer cars, you might be able to find adaptive cruise control , which is a smart technology. Adaptive cruise control allows you to travel at a predetermined speed, but it also helps to maintain a safe distance from the vehicles in front of you with the help of sensors. With conventional cruise control, you need to take over when the car in front of you slows down, but that’s not the case with adaptive cruise control.

There are also vehicles nowadays with not only cruise control, but fully self-driving vehicles . We will most likely see much more of this in the future.

Cruise Control Repair Cost

The cost to repair your cruise control system depends on what caused it to fail. If you need to replace a cruise control or brake switch, you might spend between $125 and $350, including parts and labor. However, the cost to change a fuse is only a few dollars and you can perform the replacement yourself in just a matter of seconds.

On the other hand, when something major fails, such as the actuator, you could be looking at a much higher repair bill. In some vehicles, the cost to replace a cruise control actuator can cost more than $700. These costs rise if you drive a luxury vehicle or one that is difficult to get parts for.

It might not seem immediately important for you to fix the broken cruise control, but this defective system can affect other performance aspects. You could start to notice issues with acceleration or have trouble with the speedometer. To play it safe, it’s always best to have the cruise control repaired as soon as you notice a problem.

Is there a fuse for the cruise control?

Yes. If the cruise control is installed from the factory, you should check your car’s owner’s manual for the fuse location. If it’s an aftermarket cruise control, you’ll need to follow the wires to find the fuse.

Does the brake switch affect the cruise control system?

Yes. The brake switch affects the cruise control system. The brake switch sends a signal to the cruise control system to let it know when the brakes are being applied for the engine to know when it should stop accelerating.

Will the cruise control work if the check engine light is on?

The cruise control function will be disabled when the check engine light is on in most car models, even if the cause of the check engine light is not the cruise control itself. This is mainly due to safety reasons.

Can a vacuum leak affect cruise control?

Older vehicles use vacuum to control the throttle for the cruise control, and in this case a vacuum leak can heavily affect the cruise control. However, modern cruise controls are fully electric and in most cases will not be affected by a vacuum leak if the check engine light is not illuminated.

Although many people may think that the cruise control system is unimportant and not worth spending money to repair, the problem can be caused by a faulty part that will affect the engine’s performance or durability. Therefore, it is best not to ignore the problem if your cruise control is not working without first diagnosing the car properly.

If your cruise control still isn’t working after trying all the tips in this article, it’s probably time to take it in for a professional opinion from a mechanic. It may be a more serious problem that requires replacement parts or repairs. In the meantime, drive safe and enjoy the open road!

Learn more:

Brake Lights Not Working But Tail Lights Are? (How to Fix)
Tail Lights Not Working But Brake Lights Are? (How to Fix)
Brake Lights Stay On? (5 Causes & How to Fix it)

Categories: Electric , Troubleshooting

Latest Posts

The Best & Worst Years Of Ford Explorer
Best & Worst Years Of Toyota Corolla
Best & Worst Years of Toyota RAV4
When Should Your Child Switch To A Forward-Facing Car Seat?
The Best & Worst Years Of Toyota Camry
I Accidentally Put Premium Gas In My Car, What To Do?

Locate a Dealer
Dealer Login

For Hyundai dealers

Now viewing

Want to know how to use Smart Cruise Control on your Hyundai? This video highlights how the system can make driving in traffic easier by automatically adjusting your set cruising speed to keep pace with stop-and-go traffic patterns. You’ll also learn how to switch between Smart Cruise Control and standard cruise control.

Need more assistance?

Enter your new hyundai vin, what's a vin.

A unique 17-character serial number used to identify individual motor vehicles.

Where do I find my VIN?

- Driver's side dashboard - Inside driver's side door jamb - Vehicle insurance card - Vehicle title record (pink slip)

Your browser doesn't support HTML5 video. Download the video instead.

¿Qué es el modo “Cruise control” en los autos y cómo funciona?

¿conduces en carretera por varias horas este sistema es para ti.

Tu auto pudiera ya contar con un sistema de control de velocidad, conocido como "cruise control" Crédito: Pexels

Por La Opinión

Bienvenido a nuestra guía de Consejos para Automovilistas , donde encontrarás tips y consejos para conducir más seguro en carretera.

Los viajes largos de carretera terminan agotando a un conductor e impidiendo que él o ella disfrute de los paisajes.

Después de unas horas de conducir por la autopista, los conductores pierden la noción de la velocidad e incluso el camino, pues la imagen de éste se vuelve tan repetitiva que termina confundiéndolos y haciendo que pierdan el control de la velocidad.

Por esa razón, los fabricantes implementaron en los modelos más recientes una tecnología conocida como Cruise Control , un sistema que controlar la velocidad de un vehículo para que el conductor no tenga que mantener su pie en el acelerador todo el tiempo.

El Cruise Control – también conocido como speed control , autocruise o tempomat – controla la válvula de aceleración para mantener una velocidad continua a través de un cable conectado a un solenoide, en lugar de presionar un pedal. La válvula de mariposa controla la potencia y la velocidad del motor al limitar la cantidad de aire que absorbe, ya que es un motor de combustión interna, explica Science ABC .

Por lo general, el conductor aumenta o disminuye la velocidad simplemente utilizando unos botones en su volante o una palanca parecida a la de las luces intermitentes (el diseño y mecanismo depende del fabricante), y el símbolo del Cruise se ve en el tablero de la siguiente manera:

Aunque esta “nueva tecnología” parezca el descubrimiento del siglo, la verdad es que fue James Watt, un ingeniero mecánico, quien la inventó por primera vez en el siglo 17, cuando él trataba de mantener la velocidad constante de las máquinas de vapor.

La tecnología como la conocemos ahora se comenzó a usar en autos en los años 40.

Las versiones más actualizadas y modernas del Cruise , como el Adaptive Cruise Control , ya pueden determinar la velocidad necesaria para acelerar o frenar dependiendo de el flujo en carretera.

Te puede interesar:

Cómo escapar si vas cayendo por una colina con tu auto
Cómo sobrevivir un intento de robo de tu auto… mientras estás tú en él

En esta nota

El dólar de plata que podría valer hasta $200,000 dólares en el mercado de subastas

Detrás de cámaras del reality "La Casa de los Famosos" (Telemundo).

¿Cómo van las votaciones en La Casa de los Famosos hoy, 10 de mayo?

El embajador de Israel ante la ONU, Gilad Erdan, condenó la aprobación de la resolución.

La indignación de Israel tras aprobar la Asamblea General de la ONU la ampliación de los derechos de Palestina

María Celeste reaparece en redes con un desgarrador mensaje tras la muerte de su pareja

Barron Trump había sido elegido como delegado de Florida a la Convención Nacional Republicana.

Barron Trump se negó a servir como delegado en la Convención Nacional Republicana

Suscribite al boletín de noticias, recibe gratis las noticias más importantes diariamente en tu email.

Este sitio está protegido por reCAPTCHA y Google Política de privacidad y Se aplican las Condiciones de servicio .

¡Muchas gracias!

Model Y Owner's Manual

Autopilot features.

Traffic-Aware Cruise Control: Like traditional cruise control, Traffic-Aware Cruise Control maintains a set driving speed. However, Traffic-Aware Cruise Control also slows down or accelerates Model Y as needed to maintain the following distance from the vehicle in front of you. While Traffic-Aware Cruise Control is engaged, you are still responsible for steering Model Y (see Traffic-Aware Cruise Control ).
Autosteer: Like Traffic-Aware Cruise Control, Autosteer maintains a set speed (if there is not a vehicle in front of you) or a set following distance (if there is a vehicle in front of you). In addition, Autosteer detects lane markings, road edges, and the presence of vehicles and objects to intelligently keep Model Y in its driving lane (see Autosteer ). Informational Purposes An informational icon, calling your attention Note Autosteer is a BETA feature.
Auto Lane Change : When you engage a turn signal while Autosteer is active, Auto Lane Change moves Model Y into the adjacent lane in the direction indicated by the turn signal (see Auto Lane Change ).
Navigate on Autopilot: Navigate on Autopilot builds on the features of Traffic-Aware Cruise Control and Autosteer. While Autosteer is active, Navigate on Autopilot allows Model Y to suggest and, if configured, automatically change lanes to pass other vehicles and follow the navigation route (see Navigate on Autopilot ). Informational Purposes An informational icon, calling your attention Note Navigate on Autopilot is a BETA feature.

Autopilot Settings

Set Speed : Choose whether Autopilot engages at the currently detected speed limit or your current driving speed. Touch Controls > Autopilot > Set Speed and choose either Speed Limit or Current Speed .
Offset : If you choose Speed Limit , you can specify an offset by touching Set Speed Offset . You can choose Fixed (the cruising speed adjusts by a specific amount on all roads) or Percentage (the cruising speed is adjusted as a percentage of the road's detected speed limit).
Autopilot Activation : Choose how to activate Autosteer. If set to Single Pull , both Traffic-Aware Cruise Control and Autosteer engage when you pull the drive stalk down once. If set to Double Pull , you must pull the drive stalk down twice in quick succession to engage Autosteer. Informational Purposes An informational icon, calling your attention Note Autopilot Activation must be set to Double Pull if you want to use Traffic-Aware Cruise Control independently of Autosteer.
Green Traffic Light Chime : In Canada and U.S.: If on, a chime will sound when you are waiting at a red traffic light and the light turns green. If you are not actively using Traffic-Aware Cruise Control and are waiting at a red light with a car in front of you, the chime sounds when the car ahead of you advances.

Traffic-Aware Cruise Control

Traffic-Aware Cruise Control is always enabled.

If you want a chime to sound when you engage or cancel Traffic-Aware Cruise Control, touch Controls > Autopilot > Traffic-Aware Cruise Control Chime .

To enable Autosteer:

Touch Controls > Autopilot > Autopilot Features > Autosteer (Beta) .
After carefully reading and understanding the popup window, touch Yes .

Autosteer confirms activation with an audible chime and briefly displays a message on the touchscreen reminding you to pay attention to the road and be ready to take over at any time .

Whenever Autosteer is active, Traffic-Aware Cruise Control is active as well.

In situations where the speed limit cannot be detected when Autosteer is engaged, Autosteer reduces your driving speed and limits the set cruising speed to 45 mph (70 km/h) . Although you can manually accelerate to exceed the limited speed, Model Y will not brake for detected obstacles as long as you are applying the accelerator pedal. Autosteer slows down to the limited speed when you release the accelerator pedal. When you leave the road or disengage Autosteer by using the steering wheel , you can increase your set speed again, if desired.

Auto Lane Change

If you engage a turn signal while Autosteer is active, Model Y moves into the adjacent lane in the direction indicated by the turn signal, provided the following conditions are met:

The turn signal is engaged.
Lane markings indicate that a lane change is permitted.
Midway through the lane change, Model Y must detect the target lane's outside lane marking. If this lane marking is not detected, the lane change is aborted and Model Y returns to its original driving lane.
The view of the camera(s) is not obstructed.
Model Y does not detect a vehicle in its blind spot, or a vehicle or obstacle up to the center of the target lane. If a vehicle or other obstacle is detected in the target lane, it is shown in red in the visualization on the touchscreen and Model Y does not complete the lane change until it is safe to do so.

The minimum speed at which Autopilot changes lanes may vary depending on region, adjacent lane speeds, and other factors. Always be ready to manually steer and change lanes as necessary. When an automatic lane change is in progress, Overtake Acceleration is activated, allowing Model Y to accelerate closer to a vehicle in front (see Overtake Acceleration ).

When you engage a turn signal, Autopilot moves Model Y one lane at a time. Moving into an additional lane requires you to engage the turn signal a second time after the first lane change is complete.

As Model Y changes lanes, it is important to monitor its performance by watching the driving path in front of you and the surrounding area. Stay prepared to take over steering at any time. As you are crossing over into the adjacent lane, the touchscreen displays the location in the lane that Model Y is moving into.

Navigate on Autopilot

To enable Navigate on Autopilot, touch Controls > Autopilot > Navigate on Autopilot (Beta) . Then, to customize how you want Navigate on Autopilot to operate, touch Customize Navigate on Autopilot :

Enable at Start of Every Trip : Choose whether to automatically enable Navigate on Autopilot for every navigation route. When enabled, the Navigate on Autopilot button on the turn-by-turn direction list is already enabled at the start of every trip.
Speed Based Lane Changes : Navigate on Autopilot is designed to perform both route-based and speed-based lane changes. Speed-based lanes changes are optional. You can use this setting to disable speed-based lane changes or to specify how assertively you want Navigate on Autopilot to change lanes to achieve the set cruising speed ( Mild , Average , or Mad Max ).
Exit Passing Lane : Choose whether you want Navigate on Autopilot to maneuver out of a passing lane when navigating to a destination. In addition to route-based and speed-based lane changes, Navigate on Autopilot requests a lane change out of a passing lane as a reminder to stay in a slower lane when you are not passing other vehicles. Choose No to disable this and keep Model Y in a passing lane except when needed to stay on the navigation route.
Require Lane Change Confirmation : (if equipped) By default, Navigate on Autopilot requires your confirmation before proceeding with a lane change by engaging the appropriate turn signal . If you do not confirm the lane change within 3 seconds, a chime sounds to remind you that Navigate on Autopilot requires your confirmation to change lanes.
Lane Change Notification : You can specify if or how you want to be notified of lane changes ( Off , Chime , Vibrate , or Both ).

If Enable at Start of Every Trip is turned on, Navigate on Autopilot engages automatically when:

Autosteer is active.
You are navigating to a destination.
You are on a controlled-access highway.

Once enabled, the Navigate on Autopilot button appears on the map’s turn-by-turn direction list whenever a navigation route is active and the route includes at least one controlled-access highway.

If Enable at Start of Every Trip is turned off, touch the Navigate on Autopilot button above the turn-by-turn directions to enable it. Once the Navigate on Autopilot is selected, it will engage whenever you engage Autosteer.

The Navigate on Autopilot icon with a steering wheel when it is not active

Whenever Navigate on Autopilot is active, the Navigate on Autopilot button is blue and the touchscreen displays the driving lane as a single blue line in front of Model Y :

The turn-by-turn directions display the Autosteer icon next to the maneuvers (such as off-ramps) that Navigate on Autopilot will handle.

When Navigate on Autopilot is engaged Model Y automatically makes both speed-based and route-based lane changes.

Speed Based Lane Changes: Navigate on Autopilot changes lanes to reduce driving time to your destination. For example, if Model Y is behind a vehicle going below the set cruising speed, Navigate on Autopilot will move into the passing lane to pass it. Speed-based lanes changes are optional.
Route Based Lane Changes: Navigate on Autopilot changes lanes to route you to your destination. For example, Navigate on Autopilot will move into the exit lane as Model Y approaches the off-ramp specified by the navigation route.

If you ignore a route-based lane change suggestion (for example, you are driving in the left lane while approaching an off-ramp on the right side of the highway), Navigate on Autopilot is unable to maneuver onto the off-ramp and as a result, you are re-routed to your destination.

Navigate on Autopilot activates and deactivates based on the type of road you are driving on. When Navigate on Autopilot is active and you approach an off-ramp or interchange along your navigation route, the appropriate turn signal engages and Autosteer maneuvers Model Y onto the off-ramp or interchange.

When you leave a controlled-access highway Navigate on Autopilot reverts to Autosteer—a chime sounds and the touchscreen displays the driving lane lines in blue (instead of the single blue in front of Model Y ). When Navigate on Autopilot deactivates, Autosteer remains active. Always be prepared to take appropriate action.

Canceling Autopilot

Traffic-Aware Cruise Control cancels when:

CAUTION: If you move the drive stalk upward and hold it up for more than one second, Model Y shifts into Neutral after canceling Autosteer.
You press the brake pedal.
You exceed 90 mph (150 km/h) .
You shift into Reverse, Park, or Neutral.
A door is opened.
An Automatic Emergency Braking event occurs (see Collision Avoidance Assist ).
The driver's seatbelt is released, and/or the driver gets out of their seat.

Image of the drive stalk with an arrow going up.

When Traffic-Aware Cruise Control cancels, the cruising speed icon on the touchscreen turns gray to indicate that Traffic-Aware Cruise Control is no longer active.

Autosteer cancels when any of the above actions are taken. In addition, Autosteer cancels when:

You exceed 85 mph (140 km/h) .
You take over steering manually. Warning Icon A warning icon, calling your attention to a possibly risky situation Warning If Autopilot Activation is set to Double Pull and Autosteer cancels because you started steering manually , Traffic-Aware Cruise Control remains active. If Autopilot Activation is set to Single Pull and Autosteer cancels because you started steering manually , Traffic-Aware Cruise Control also cancels.
You do not respond to repeated reminders to keep your hands on the wheel and subsequent messages on the touchscreen (see Driver Attentiveness ).

When Autosteer cancels, a chime sounds and the Autosteer icon either turns gray to indicate that Autosteer is no longer active, or disappears to indicate that it is not currently available.

You touch the Navigate on Autopilot button on the map’s turn-by-turn direction list. In this case, Autosteer is still active.
You leave a controlled-access highway. When this happens, Autosteer is still active.

When Navigate on Autopilot cancels but Autosteer remains active, a chime sounds and the visualization goes from a single blue line in the driving lane to two blue lines on either side of the lane.

When Traffic-Aware Cruise Control or Autosteer cancels, Model Y does not coast. Instead, regenerative braking slows down Model Y in the same way as when you move your foot off the accelerator when driving without Traffic-Aware Cruise Control (see Regenerative Braking ).

While Using Autopilot

When Traffic-Aware Cruise Control is active and Autopilot is maintaining a set speed, the speed is highlighted with blue text on the touchscreen .

When Autosteer is active, the steering wheel icon is blue and the lane markings are highlighted in blue on the visualization. If Navigate on Autopilot is also active, the Navigate on Autopilot button is blue and the touchscreen displays the driving lane as a single blue line in front of Model Y .

To display more details about the roadway and its surroundings, such as road markings, stop lights, and objects (such as trash cans and poles), touch Controls > Autopilot > Full Self-Driving Visualization Preview .

If unable to detect lane markings, Autosteer may determine the driving lane based on a vehicle you are following. In most cases, Autosteer attempts to center Model Y in the driving lane. However, there may be situations in which Autosteer follows a driving path that is offset from the center of the lane (for example, if guard rails are detected).

Maintaining the Set Speed

When Autopilot is active, Model Y maintains your set cruising speed whenever a vehicle is not detected in front of it. When cruising behind a vehicle, Model Y accelerates and decelerates as needed to maintain a chosen following distance (see Adjusting the Following Distance ), up to the set speed.

You can manually accelerate at any time by pressing the accelerator pedal, but when you release the pedal Model Y resumes cruising at the set speed.

Model Y also adjusts the cruising speed when entering and exiting curves.

When Model Y is actively slowing down to maintain the selected distance from the vehicle ahead, brake lights turn on. You may notice slight movement of the brake pedal. However, when Model Y is accelerating, the accelerator pedal does not move.

Changing the Set Speed

Roll the right scroll wheel up to increase, or down to decrease, the set speed.

You can also change the cruising speed to the current speed limit (including any offset you've specified), by either:

Pushing the drive stalk downward and briefly holding.
Touching and briefly holding the speed limit sign on the touchscreen until you see the cruising speed change.

Image showing a zoombox going to the right scroll wheel with arrows going up and down on the scroll wheel.

It may take a few seconds for Model Y to reach the new cruising speed.

Adjusting the Following Distance

The closest following distance is 2.

Image showing a zoombox going to the right scroll wheel with arrows going left and right on the scroll wheel.

Each setting corresponds to a time-based distance that represents how long it takes for Model Y , from its current location, to reach the location of the rear bumper of the vehicle ahead of you. Autopilot retains your setting until you change it again.

As you adjust the following distance, the touchscreen displays the current setting.

Screenshot of two cars with a measurement between them and the number "3".

Stopping and Slowdowns

When moving significantly faster than vehicles in adjacent lanes, Model Y automatically reduces the driving speed. This is especially helpful in heavy traffic situations or when vehicles are constantly merging into different lanes. When Model Y detects other vehicles driving significantly slower, the touchscreen highlights the adjacent lanes with arrows and detected vehicles in gray, and Model Y reduces the driving speed as appropriate. To temporarily override this feature, press the accelerator pedal.

When following a vehicle, Autopilot remains active at low speeds, even when Model Y comes to a full stop. For example, Autopilot remains active even if Model Y slows down to a complete or near-complete stop in heavy, stop-and-go traffic on a highway. When traffic starts moving more rapidly, Autopilot again accelerates up to the set speed.

Sometimes when Model Y is at a full stop, Autopilot goes into a HOLD state. If this happens, briefly press the accelerator pedal to resume cruising.

Icon of an "H" inside a circle with half circles on each side of the circle.

Model Y goes into HOLD state while Autopilot is active in the following circumstances:

Model Y has been at a standstill for 5 minutes.
Model Y detects a pedestrian (the HOLD state may clear when the pedestrian is no longer detected).
Model Y suddenly loses visibility of the vehicle in front of you.
An obstacle is detected in front of Model Y .

Cruising Near or On Exits

When you are cruising near an exit on a controlled-access highway and engage the turn signal toward the off-ramp, Autopilot assumes you are exiting and begins to slow down Model Y . If you do not drive onto the off-ramp, Autopilot resumes cruising at the set speed.

In a region with right hand traffic, this occurs only when you engage the right turn signal when driving in the right-most lane within 164 ft. (50 meters) of an exit. Likewise in regions with left hand traffic, this occurs when engaging the left turn signal when driving in the left-most lane within 164 ft. (50 meters) of an exit.

When enabled while on a highway interchange or off-ramp, Traffic-Aware Cruise Control may reduce your set speed in 5 mph (5 km/h) increments – to as slow as 25 mph (40 km/h) – to better match the reported speeds of other Tesla vehicles that have driven at that specific location. To override this and continue cruising at your set speed, tap the accelerator pedal. The new set speed is maintained for the duration of the interchange or off-ramp (unless you override it or cancel Autopilot). After the interchange or off-ramp, the set speed may revert or change as necessary based on the new location. For example, if you merged onto a different highway, the set cruising speed reverts to what it was before driving on the interchange.

When cruising onto an on-ramp to a controlled-access highway, Autopilot automatically adjusts the set cruising speed to the speed limit of the highway, plus any offset you have specified. If Navigate on Autopilot is engaged, it disengages as you leave the controlled-access highway (see Canceling Autopilot ). In this case, Autosteer remains active.

Overtake Acceleration

Engage the turn signal momentarily to accelerate Model Y towards the vehicle ahead of it. By momentarily holding the turn signal stalk up or down , you can quickly accelerate up to your set speed without having to press the accelerator pedal as long as:

Traffic-Aware Cruise Control is operating and detects a vehicle in front of you.
No obstacles or vehicles are detected in the target lane.
Model Y is traveling below the set speed, but over 45 mph (72 km/h) .

Model Y stops accelerating when you reach your set cruising speed, if changing lanes takes too long, or if Model Y gets too close the vehicle ahead. Model Y also stops accelerating if you disengage the turn signal.

Stop Light and Stop Sign Warning

While Autopilot is in use, Model Y displays a warning on the touchscreen and sounds a chime if it detects that you are likely to run through a red stop light or stop sign. If this happens, TAKE IMMEDIATE CORRECTIVE ACTION!

The visual and audible warnings cancel after a few seconds or when you press the brake pedal, whichever comes first.

Stop Light and Stop Sign Warning provides warnings only. It does not slow down or stop Model Y at red traffic lights, stop signs, road markings, etc. If equipped with Traffic Light and Stop Sign Control, you can enable this feature to automatically stop Model Y at traffic lights and stop signs (see Traffic Light and Stop Sign Control ).

Emergency Vehicles

If available in your market region, Model Y automatically reduces driving speed when lights from an emergency vehicle are detected when using Autosteer at night on a high speed road. When this happens, the touchscreen displays a message informing you of the slowdown. You will also hear a chime, and see a reminder to keep your hands on the steering wheel . When the light detections pass by or cease to appear, Autopilot resumes your cruising speed. Alternatively, you may tap the accelerator to resume your cruising speed.

Never depend on Autopilot features to determine the presence of emergency vehicles. Model Y may not detect lights from emergency vehicles. Keep your eyes on your driving path and always be prepared to take immediate action.

Driver Attentiveness

Autosteer determines how best to steer Model Y . When active, Autosteer requires you to hold the steering wheel. If it does not detect your hands on the steering wheel for a period of time, a flashing blue light appears at the top of the vehicle status section of the touchscreen and the following message displays:

When your hands are detected, the message disappears and Autosteer resumes normal operation. Autosteer detects your hands by recognizing slight resistance as the steering wheel turns, or from you manually turning the steering wheel very lightly (without enough force to take over steering). Autosteer also qualifies your hands as being detected if you engage a turn signal or use a button or scroll wheel on the steering wheel.

Autosteer requires that you pay attention to your surroundings and remain prepared to take control at any time. If Autosteer still does not detect your hands on the steering wheel, the flashing light on the vehicle status section of the touchscreen increases in frequency and a chime sounds.

If you repeatedly ignore Autosteer's prompts to apply slight force to the steering wheel, Autosteer disables for the rest of the drive and displays the following message requesting you to drive manually.

For the rest of the drive, you must steer manually. Autosteer is available again on your next drive (after you stop and shift Model Y into Park).

If you don't resume manual steering, Autosteer sounds a continuous chime, turns on the warning flashers, and slows the vehicle to a complete stop.

Autosteer Suspension

Use of Autosteer will be suspended if improper usage is detected.

When you or another driver of your vehicle receives five forced Autopilot disengagements, use of Autosteer is suspended for a week. A forced disengagement is when the Autopilot system disengages for the remainder of a trip after the driver receives several audio and visual warnings for inattentiveness. Driver-initiated disengagements do not count as improper usage.

You can see how many disengagements are remaining before Autosteer access is suspended by touching Controls > Autopilot .

Take Over Steering Immediately

In situations where Autosteer is unable to steer Model Y , Autosteer sounds a warning chime and displays the following message on the touchscreen .

When you see this message, TAKE OVER STEERING IMMEDIATELY .

MCCRUISE INSTRUCTION SETS ARE NOW AVAILABLE ON PRODUCT PAGES. THESE MANUALS ARE ONLY AVAILABLE IN ENGLISH.

MotorCycle Cruise Controls

Cruise Control for Honda XL750 Transalp from 2023 TBW

Switch Option: New Slim MCCruise Switch

(10% GST will be added in the cart for Australian orders only)

This cruise control fits the standard XL750 Transalp from 2023.

The motorcycle cruise installation instructions and specific cruise manuals and supporting documents can be found here.

The Motorcycle Cruise Control unit is adapted specifically for this vehicle, with a custom made and fully plug and play wiring harness, using genuine connectors and terminals as used by the manufacturer. There is no wire splicing or any other permanent changes made to your bike.

Cruise control switch - there are two options to choose from (see photos):

MCCruise switch: Our proven, fully-featured and weatherproof switch which comes standard with all of our products. Backlit buttons for night use, power (ON-OFF) indicator light and engage indicator light.
New Slim MCCruise switch: Our new fully-featured and weatherproof switch which is a no cost option, and is fitted between the bike's switch block and the clutch lever mount (manual shift) or hand brake mount (DCT). Backlit buttons for night use, power (ON-OFF) indicator light and engage indicator light. The switch is 10mm (3/8") wide, so it may be necessary to slide the clutch lever assembly across to make space to mount the switch on the handlebar. Contact us for installation instructions if you wish to see how it is fitted.

Speed bump setting: The cruise computer is fully configurable by the user for either km/h or mph.

The electronic cruise control unit is shipped worldwide with all parts, parts list and detailed installation instructions for this kit.

13/137-145 Rooks Road Nunawading 3131 AUSTRALIA Email: [email protected] Phone: +61 3 9808 2804

Privacy Policy
Access Installation Documents
Videos & Instructions online
Accessories, Tools & Spares
Testimonials
Bikes Wanted

Join our mailing list for updates

Crafted by FirstWire

Join us and get nice things

Free stuff and general goodness

*By completing this form you're signing up to receive our emails and can unsubscribe at any time.

Ford Super Duty Driver Lies Down in Back Seat While Going 84 MPH on Cruise Control

A mong the most dangerous new kinds of bad drivers are those that think self-driving cars exist. They've been mostly confined to Teslas so far, but it seems the delusion is contagious. Take this Ford Super Duty driver, who has filmed himself chilling in the back seat as the truck rolls down the highway at 80-something mph with nobody in the driver's seat, endangering everyone in the vicinity.

The video in question ( mirror ) was uploaded by Instagram user @__c.crawford__ . Cameron James (or Crawford) is depicted lying down in the back seat of his 2023 or newer Ford F-450 Platinum crew cab, with nobody at the wheel or controlling the pedals. The video's caption reads "F450 driving itself," which it definitely isn't designed or advertised to do.

View this post on Instagram

A post shared by Cameron James (@__c.crawford__)

Ford offers multiple levels of driving automation, and hands-free BlueCruise is the company's premier automation tech. BlueCruise isn't self-driving though, as Ford emphasizes the driver must keep their eyes on the road. Ford uses a driver monitoring system to ensure this, and it'll deactivate if the vehicle suspects the driver is inattentive. (Even that hasn't been enough to prevent two fatal crashes involving BlueCruise though, which has the system under federal investigation .)

But the F-450 doesn't even have BlueCruise. The most advanced assist Ford offers on the Super Duty is a combination of adaptive cruise control and lane-keeping, which barely even register on the automation scale. They're designed to be used by a driver who's in control with their hands on the wheel, not some moron who thinks they can climb in the back seat. Ford tries to enforce this with pressure sensors on the steering wheel, but Tesla drivers have found a variety of ways to defeat them , and it seems Cameron here has, too.

Some Tesla drivers have filmed themselves doing this very thing as "pranks," and it's feasible this guy is doing the same. Whether or not he's trolling is beside the point, because he's still proven himself too reckless to be trusted with a motor vehicle—especially an F-450. While overconfident tech bros in Teslas are bad enough, 8,000-pound F-450 crew cabs are even more dangerous due to the sheer weight involved. And judging from the comments, he's not the only person who believes these rigs can drive themselves. There's a reason Tesla's under investigation for misleading consumers , but until anything good comes from that case, it'd be real nice for the rest of us on the road if somebody took away this clown's license.

Got a tip or question for the author? You can reach them here: [email protected]

Ford Super Duty Driver Lies Down in Back Seat While Going 84 MPH on Cruise Control

IMAGES

Como Usar El Sistema De Cruise Control De Tu Auto
Cruise Control ¿En qué consiste y cómo utilizarlo? -canalMOTOR
What is cruise control and how does it work?
How to use Cruise Control in Honda Civic? Easy Guide
Controls and display mode for adaptive cruise control*
How To Use Cruise Control In A Car EASILY! (Basics For Beginners)

VIDEO

In Cruise Control: Defending Against False Accusations
Cruise Control Features 😎🔥 #shorts #automobile #viral
ADVANCED CRUISE CONTROL
Cruise control beat karbu😍
HOW TO USE CRUISE CONTROL #cruisecontrol #kiaseltos2024 #trendingcarszone
Cruise Control is almost here !!!!!!!

COMMENTS

How Cruise Control Systems Work
The cruise control system controls the speed of your car the same way you do -- by adjusting the throttle position.But cruise control actuates the throttle valve by a cable connected to an actuator, instead of by pressing a pedal.The throttle valve controls the power and speed of the engine by limiting how much air the engine takes in (see How Fuel Injection Systems Work for more details).
Cruise control
Common cruise control icon on dashboards specified by ISO-7000-2047, ISO 2575:2010, and ISO 6727. Another icon exists for the more modern adaptive cruise control, but some cars also use the cruise control icon for the speed limiter function, which has no standard icon.. Cruise control (also known as speed control, cruise command, autocruise, or tempomat) is a system that automatically controls ...
How to Use Cruise Control Safely
You operate cruise control by either a stalk on the steering column or several buttons on the steering wheel. These include an on-off switch; a "set" button to select the speed you want the car to ...
Cruise Control Explained: How It Works, And When You Should Use It
Cruise control, in a general sense, aims to be as efficient as possible within the parameters the driver provides, which can potentially translate to less fuel being used over time. This is only ...
How to Use Cruise Control on a Car: 10 Steps (with Pictures)
3. Drive your car until you reach your desired speed and hit "SET.". Cruise control will set the car to hold steady at a particular speed. Once you reach the speed you want (keep an eye on your car's speedometer), push the "SET" button.
Cruise Control In Cars Explained (And How To Safely Use It)
Cruise control, also known as speed control, is an electronic system that allows you to maintain a specific speed without manually controlling the accelerator pedal. The system uses sensors and electronic components to control the throttle and keep your car moving at a desired speed. First introduced in the late 1950s, cruise control has since ...
Cruise Control: How Does It Work?
Cruise control is a feature allowing the driver to set a predetermined speed, which the system's computer maintains until the driver adjusts the speed, taps the brake, or disengages the system ...
Cruise Control: What It Is and How to Use It
For your car, check the manufacturer's manual for the location and specific instructions. To set cruise control, press the ON/OFF button or switch. If you press this button again, it typically turns the system off. The Res + (resume / increase seed) button increases the cruising speed by 1 mph, while the Set - (set speed / reduce speed ...
How Does Cruise Control Work?
Cruise control is a driving assist that maintains a constant driving speed without your foot on the gas pedal. Cruise control has been around for a long time, but only in the past few years has it become more common in economy cars. There are various types of cruise control mechanisms, and these usually work according to the type of throttle ...
How to use cruise control
Set the cruise control: Once you've switched the system on, press the set button. This will communicate with your car to hold the current speed. In most vehicles, this will turn the dashboard indicator green. After the cruise control is set, you can remove your foot from the accelerator and the car should maintain its speed. 4.
Cruise Control: What It Is, How to Use It (And When Not To)
5 - Watch the road and steer. Watching the road is essential when cruise control is engaged. Cruise control is not a substitute for a human driver and will require supervision at every step. If you are using a semi-autonomous system, you will not need to steer but will need to keep at least one hand on the wheel for safety measures.
How To Use Cruise Control
To use cruise control, you can typically press buttons on your steering wheel to activate the system, set your speed, adjust your speed up or down within the system, and deactivate the system. Using cruise control lets you set a speed for your car to maintain even if you take your foot off the gas. On long trips, it can reduce driver fatigue.
What is Cruise Control? A Comprehensive Guide
With cruise control, drivers need to brake to slow down as they close in on a slower vehicle in traffic. With adaptive cruise control, the system makes these braking inputs automatically, and the ...
Adaptive cruise control
Adaptive cruise control by the Insurance Institute for Highway Safety (example video) Adaptive cruise control ( ACC) is a type of advanced driver-assistance system for road vehicles that automatically adjusts the vehicle speed to maintain a safe distance from vehicles ahead. As of 2019, it is also called by 20 unique names that describe that ...
What is Cruise Control and How Does it Function in a Car?
Description. 1. Definition. Cruise control is an electronic system that allows a vehicle to maintain a consistent speed, without the need for continuous driver input on the accelerator pedal. 2. Activation. Cruise control systems are typically activated by pressing a button or switch located on the steering wheel or dashboard. 3. Function.
Adaptive Cruise Control: How Does It Work?
Cruise control is still the more prolific of speed controls offered on today's new cars, but adaptive cruise control has started gaining ground. More car models provide it as standard or as an ...
5 Reasons Why Your Cruise Control Stopped Working
It can also be caused by issues with the throttle control system or the ABS. In older cruise control systems, it can be caused by a broken vacuum line. Here is a more detailed list of the possible reasons your cruise control is not working: 1. Blown Fuse. All electrical systems in the vehicle are controlled by fuses.
Smart Cruise Control
This video highlights how the system can make driving in traffic easier by automatically adjusting your set cruising speed to keep pace with stop-and-go traffic patterns. You'll also learn how to switch between Smart Cruise Control and standard cruise control.
Adaptive cruise control for passenger cars
If the vehicle ahead speeds up or changes lanes, the ACC automatically accelerates to the driver's desired speed. Standard ACC can be activated from speeds of around 30 km/h (20 mph) upwards and supports the driver, primarily on cross-country journeys or on freeways. The ACC stop & go variant is also active at speeds below 30 km/h (20 mph).
¿Qué es el modo "Cruise control" en los autos y cómo funciona?
Por esa razón, los fabricantes implementaron en los modelos más recientes una tecnología conocida como Cruise Control, un sistema que controlar la velocidad de un vehículo para que el ...
Autopilot Features
Traffic-Aware Cruise Control: Like traditional cruise control, Traffic-Aware Cruise Control maintains a set driving speed. However, Traffic-Aware Cruise Control also slows down or accelerates Model Y as needed to maintain the following distance from the vehicle in front of you. While Traffic-Aware Cruise Control is engaged, you are still responsible for steering Model Y (see Traffic-Aware ...
CruiseControl
CruiseControl. In software development, CruiseControl is a Java -based framework for a continuous build process. It includes, but is not limited to, plugins for email notification, Ant, and various source control tools. A web interface is provided to view the details of the current and previous builds. It allows one to perform a continuous ...
Motorcycle electronic cruise control
This cruise control fits the standard XL750 Transalp from 2023. The motorcycle cruise installation instructions and specific cruise manuals and supporting documents can be found here. The Motorcycle Cruise Control unit is adapted specifically for this vehicle, with a custom made and fully plug and play wiring harness, using genuine connectors ...
Marella Cruise Control
Welcome to Cruise Control, your one-stop shop for everything you need before you travel with Marella Cruises. Complete the online check-in process to access your travel documents. Print your luggage labels and boarding passes for your cruise. Book your excursions and onboard experiences. Departure date (DD/MM/YYYY)
Ford Super Duty Driver Lies Down in Back Seat While Going 84 MPH ...
But the F-450 doesn't even have BlueCruise. The most advanced assist Ford offers on the Super Duty is a combination of adaptive cruise control and lane-keeping, which barely even register on the ...

How Cruise Control Systems Work

What Cruise Control Does

Cruise Control FAQ

More Great Links

How to Use Cruise Control on a Car

Get Car Support Solve Any Problem

Operating Cruise Control

Using Cruise Control Safely and Efficiently

Expert Q&A

You Might Also Like

About This Article

Reader Success Stories

Did this article help you?

Featured Articles

Trending Articles

Watch Articles

Cruise Control In Cars Explained (And How To Safely Use It)

Understanding Cruise Control

How Does It Work?

The History of Cruise Control

Types of Cruise Control Systems

Conventional Cruise Control

Adaptive Cruise Control (ACC)

Predictive Cruise Control

Cooperative Adaptive Cruise Control (CACC)

Common Cruise Control Symbols and Indicators

Benefits of Using Cruise Control

Fuel Efficiency

Comfort and Convenience

Troubleshooting Common Cruise Control Issues

Cruise Control and Road Etiquette

The Future of Cruise Control Technology

Debunking Myths About Cruise Control

Frequently Asked Questions About Cruise Control

Quick Navigation

Browse related articles

What To Know About Speed Limits

When Should You Trade In Your Car?

Busting Common Driving Myths: Fact Vs Fiction On The Road

Cruise Control: What It Is and How to Use It

What is cruise control?

What is adaptive cruise control?

How to set cruise control

How does cruise control work?

Cruise control safety tips

Cruise control when it’s raining

Frequently asked questions about cruise control

Is cruise control bad for your card?

Is cruise control safe?

When should cruise control not be used?

Related articles

Tire Rotation Overview: Why and When to Do It

Why Are My Brakes Making Noise?

How Does Cruise Control Work?

What Is Cruise Control?

Cruise Control in Older Cars with Cable Throttle

Cruise Control in Newer Cars with Drive-By-Wire Throttle

How Does Adaptive Cruise Control Work?

Cruise Control in Motorcycles

When to Use (and Not to Use!) Cruise Control

Cruising with Control

Cruise Control Explained – All You Need to Know

What is Cruise Control?

Different Types of Cruise Control

What is a Speed Limiter?

What is Adaptive Cruise Control?

What is Semi-autonomous Cruise Control?

How to Use Cruise Control – 6 Step Guide

1 – Observe weather conditions

2 – Build speed

3 – Engage cruise control

4 – Set cruise control

5 – Watch the road and steer

6 – Brake to disengage

When NOT to Use Cruise Control

Heavy Traffic

Wet or Icy Conditions

City Driving

Winding Roads

Fatigued Driving