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How Cruise Control Systems Work

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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.

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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 .

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Cruise Control Explained: How It Works, And When You Should Use It

Self-driving cars are becoming increasingly intelligent , but whether they'll ever be ubiquitous and fully capable remains unclear. Tesla notes (for now) that its Full Self Driving Capability is "intended for use with a fully attentive driver, who has their hands on the wheel and is prepared to take over at any moment." For many drivers at present, the automatic functions of their cars are limited to the likes of beeping sensors, flashing displays, and features like cruise control.

Cruise control is a feature provided as standard on a wide range of vehicles; it's one of those functions that some drivers adore and others barely use. While the feature doesn't take over from the driver by any means, it can significantly ease their burden. Essentially, cruise control allows drivers to select an appropriate speed for the road, conditions, and general journey they're currently on, and automatically prevents the vehicle from deviating from that speed.

Experienced drivers, of course, will probably be familiar with the basics of what cruise control does, even if they haven't really used it themselves. Rather more complex than that, though, is the question of exactly how it keeps the vehicle moving at a specific speed. If you've ever wondered how cruise control works, what the pros and cons of using it are, how it's developed since its introduction, and/or when to use it, this is just the piece for you.

The essentials of how cruise control works

Cruise control as we know it today has its roots in the ingenuity of Ralph Teetor. Though he lost his vision following an accident, Teetor rose to become the president of the Society of Automotive Engineers. In that capacity, he used both his passion for auto safety and his extensive experience with other drivers to create the first example of cruise control. In 1950, Teetor held a patent for technology referred to as a "Speed Control Device For Resisting Operation Of The Accelerator," also called the Speedostat, and it worked just as the name implied: the driver could opt for a certain speed by selecting it from the dash, then, through the drive shaft, a piston would provide resisting force on the pedal after arriving at that speed.

The basics of how cruise control functions haven't actually changed very much. Depending on the vehicle model, the input for choosing the desired speed may now be a touchscreen, but the effect is the same: a connected actuator receives the signal from the control device, and, as it runs to the valve for the throttle, is used to control the strength of the force acting on the throttle. Accelerating faster or slower depending on how much faster the inputted speed is, the vehicle will then reach said speed and hold the accelerator in place (though not necessarily physically as Teetor's Speedostat did). This is a mechanically-oriented form of cruise control, but some modern vehicles utilize adaptive cruise control instead.

How is adaptive cruise control different?

The basic concept of cruise control, of course, is centered more around what the specific vehicle is doing, rather than what's on the road around it. Drivers can simply brake as they typically would in response to other drivers, overriding the constant-speed effect of cruise control, which means that autonomy isn't really a factor in cruise control beyond maintaining the speed. Adaptive cruise control like the kind found in some Acura vehicles , however, is a little more sophisticated.

Adaptive cruise control is a feature more able to do exactly that: adapt. This means that while the driver selects the vehicle's cruising speed as before, it is not locked to that speed. Another crucial thing to take into account is the vehicle's distance from others; adaptive or autonomous cruise control adds small and discreet radar systems (inputs situated somewhere near the vehicle's front lights) to the equation to monitor the surrounding area. These radars have ranges from approximately 100 feet to around 600 feet, depending on the vehicle.

A car with ACC will commonly boast small wheel-mounted units that measure its speed, along with a front-mounted one that can determine how far away other vehicles are. The former can adjust how fast your vehicle is moving relative to any motorists ahead, thereby ensuring that you always maintain your selected distance from them. Braking capacity while the system is active differs, but typically, the driver will be alerted to brake heavily if necessary (if a driver ahead does the same for instance).

When cruise control should be used

Some drivers often have the luxury of wide, peaceful, near-empty roads. For others, driving tends to be a commuter's cacophony of traffic jams, honking horns, and slow stop-start-stop-start progress. The experience can differ greatly depending on the time of day and whether it's a weekday or the weekend. The bottom line, though, is that one of these scenarios is a far better fit for cruise control than the other.

Brakes remain operational during the use of cruise control, and engaging them will override the system. This means two things: the driver's attention must still firmly remain on the road as ever (we're not at  level 5 on the autonomous driving scale here) and cruise control has sharply decreased utility in congested areas. By contrast, if you're a driver who frequently takes long-distance trips on open roads, cruise control could be the perfect feature for you. An alert and rested driver is a safe driver, and where longer journeys can compromise those things, cruise control reduces some of that pressure.

Adaptive cruise control, which monitors the ever-changing road ahead continuously via radar or laser, is potentially better equipped to handle congested roads. There's no definitive answer on whether that's the case, however, because this feature is very different from vehicle to vehicle.

Different manufacturers have different cruise control features

Cruise control is a common feature, and adaptive cruise control is becoming increasingly widespread too. The matter of how the two types of cruise control work is a very complex one beyond the basics, though, because different vehicle manufacturers have developed their own unique features for it and implemented the system in different ways.

For example, Audi's Traffic Jam Assist technology can be activated in tandem with its adaptive cruise control, thereby supporting the driver in conditions that aren't optimal for the latter. By means of ultrasonic sensors, radar, and a windshield camera, the vehicle will maintain a consistent distance from the one ahead in traffic while staying oriented on the road. The driver takes full manual controlwhen the congestion clears or Traffic Jam Assist otherwise becomes unsuitable for the situation.

Similarly, select Ford models are among those that offer Intelligent Adaptive Cruise Control, implementing advanced features such as Speed Sign Recognition (which aims to prevent adaptive cruise control users from being caught out by speed limits by adjusting the chosen speed to match them) and Stop-and-Go (limited capacity to stop entirely in response to a vehicle ahead doing the same). As always, drivers should consult their vehicle manual to determine which cruise control features are available and how to use them.

Pros and cons of cruise control and adaptive cruise control

Cruise control can be advantageous for drivers in other ways too. In its capacity to ensure a vehicle remains at a steady speed, where possible, it can boost driving efficiency. According to Natural Resources Canada , varying your speed by around 6 mph every 18 seconds can be 20% more costly in terms of fuel. 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 the case when driving for longer stretches on wide, clear roads, however. The reason is that there are certain things human drivers are better at than their machine counterparts, and adjusting speed subtly in response to changes in elevation is one of them. Failing to do so can be wasteful. 

On a similar note, Vanderbilt University  found that drivers are more adaptable in their thinking and processing of multiple vehicles and their movements on the road, while cruise control features tend to have a rather narrower focus in terms of the vehicle(s) in front. Cruise control can serve as an invaluable tool for drivers, but isn't infallible. Ensuring that you use it for its intended purpose is the key to best taking advantage of it.

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.

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.

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How Exactly Does Cruise Control Function? The Most Comprehensive Answer

A Quick Overview

Cruise control is a feature available in most modern vehicles that allows the driver to maintain a constant speed without having to constantly adjust their foot on the gas pedal. It’s particularly useful on long drives or when cruising on highways. But how exactly does cruise control work? In this comprehensive answer, we’ll explore the ins and outs of cruise control technology.

What is Cruise Control?

Cruise control is an electronic system that allows the driver to set and maintain a constant speed while driving. It’s typically activated using a button or lever on the steering wheel or dashboard, and can usually be deactivated by pressing the brakes or clutch pedal. This feature is commonly found in cars, trucks, and other motor vehicles with automatic transmissions.

Cruise control is an incredibly convenient feature, especially for long drives, because it eliminates the need for the driver to constantly monitor and adjust their speed, keeping them safer on the road.

How Does Cruise Control Work?

Cruise control uses a combination of sensors and electronic controls to maintain a steady speed. Here’s how it works:

Accelerator Sensor: When the cruise control is activated, the accelerator sensor sends signals to the vehicle’s computer, which then takes over control of the throttle.

Vehicle Speed Sensor: The vehicle speed sensor constantly measures the vehicle’s speed, sending signals to the computer to ensure that the desired speed is maintained.

Actuator: The actuator is responsible for adjusting the throttle position based on the signals received from the accelerator and vehicle speed sensors.

Brake Pedal Sensor: If the driver needs to slow down or stop, pressing the brake pedal deactivates the cruise control, allowing the driver to resume manual control of the vehicle.

Transmission: Cruise control is typically only available for vehicles with automatic transmissions, as the system relies on electronic controls to manage throttle and transmission settings.

Types of Cruise Control

There are two main types of cruise control: Conventional Cruise Control and Adaptive Cruise Control .

Conventional Cruise Control

Conventional cruise control is the most basic type of cruise control. It maintains a steady speed, but doesn’t take into account changes in traffic or road conditions. If the vehicle in front of you slows down or stops suddenly, conventional cruise control won’t automatically adjust your speed.

Adaptive Cruise Control

Adaptive cruise control (ACC) builds on conventional cruise control by using radar or other sensors to monitor the distance between your vehicle and the one in front of you. ACC automatically adjusts your speed to maintain a safe following distance, even if the car in front of you slows down or speeds up.

👉 You may also like - When and How Should You Turn OFF Cruise Control? A Guide to Safe Usage

How does cruise control work in a car?

Cruise control is a feature in a car that allows the driver to maintain a constant speed without continuously pressing the accelerator pedal. Here’s a comprehensive explanation of how it functions:

1. Speed Setting: The driver activates the cruise control system, typically through a button or switch on the steering wheel or dashboard. They then set the desired speed using the controls provided.

2. Speed Sensors: The car’s speed sensors detect the current vehicle speed and send this information to the cruise control module.

3. Throttle Control: Once the desired speed is set, the cruise control module takes over control of the throttle, which regulates the amount of fuel and air supplied to the engine.

4. Speed Maintenance: The module adjusts the throttle position to maintain the selected speed. If the vehicle begins to slow down due to external factors like inclines or wind resistance, the system automatically increases the throttle to compensate.

5. Speed Reduction: To slow down or disengage cruise control, the driver can tap the brakes, press the “Cancel” or “Off” button, or deactivate the system by pressing the clutch (in manual transmission vehicles).

6. Resume and Resume/Accelerate: Many cruise control systems have a “Resume” button, which allows the driver to return to the previously set speed after it has been canceled. Some systems also have a “Resume/Accelerate” button, which allows the driver to resume the set speed and make slight adjustments to accelerate if desired.

7. Brake Disengagement: When the driver applies the brakes, the cruise control system automatically disengages to prevent unintended acceleration.

Does cruise control work in all driving conditions?

Cruise control is typically designed for use on long, straight stretches of road with minimal traffic. It is not recommended for use in heavy traffic, urban driving, or in hazardous weather conditions. Drivers should avoid using cruise control in situations that require frequent speed adjustments, immediate braking, or enhanced vehicle control.

Can cruise control be used on uphill or downhill slopes?

Cruise control can be used on uphill slopes, but its effectiveness may be limited. When the vehicle encounters an uphill gradient, the cruise control system may need to increase throttle input to maintain the set speed. This can cause a temporary decrease in speed until the engine compensates for the incline. On downhill slopes, the system may apply engine braking to prevent the vehicle from accelerating beyond the set speed.

Can I adjust the set speed while cruise control is engaged?

Most modern cruise control systems allow drivers to adjust the set speed while it is engaged. They can usually increase or decrease the speed in small increments using dedicated buttons or controls on the steering wheel or dashboard. However, drivers should avoid making drastic speed adjustments while using cruise control, as sudden changes can affect vehicle stability and fuel efficiency.

Is it safe to rely solely on cruise control while driving?

While cruise control can enhance driving convenience, it is not a substitute for attentive and responsible driving. Drivers must remain alert, maintain awareness of their surroundings, and be prepared to override or disengage the cruise control system if needed. Cruise control should always be used in conjunction with safe driving practices, such as maintaining a safe following distance, obeying traffic laws, and adapting to changing road conditions.

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How does cruise control work.

Cruise control is more than just a catchy name — it's a feature that you may just find in your own vehicle. There’s a good chance you might’ve even asked yourself “How does cruise control work?” after spotting it on your steering wheel. Read on to learn more.

What is cruise control?

Cruise control is an automated vehicle system that can manage your car’s acceleration to keep it traveling at a steady speed. This can be quite useful to drivers who are covering long distances on relatively straight roads, as it spares them the fatigue of keeping their foot on the gas for extended stretches of time. Other possible benefits include:

• Increased fuel efficiency from keeping a constant speed.
• Less distraction from speed adjustments, so the driver can pay more attention to the road.

Cruise control systems typically work by adjusting your car’s throttle, which moderates the air going to the engine. In older cars, this was done with a system of physical cables connected to the throttle valve, but newer cars have electronic systems that can adjust the car’s speed with an even higher degree of precision. A system of sensors constantly relays information about the car’s speed back to the cruise control system, which adjusts the throttle accordingly to maintain the desired speed.

The specifics of using a car’s cruise control vary quite a bit from car to car. It’s best practice to consult the owner’s manual for your car for precise information, but some basics are included below:

• Most cruise control systems typically have a button labeled “Set.” When you press this button, the system will engage cruise control at whatever speed you’re currently travelling. Some systems may also have an option to set a higher speed by pressing or holding the button down.
• Stepping on the brakes at any point will disengage the cruise control, while pressing the “Resume” button will return the car to the set speed.
• There is typically also an “Off” button, which will automatically shut off the cruise control when pressed.
• Most cruise control systems typically won’t activate below a certain speed limit. The exact limit may vary by car but is often somewhere in the range of 30-40 miles per hour.

Adaptive cruise control vs. standard cruise control

By now, you may have picked up on a potential drawback of cruise control — keeping a steady speed is harder to do (and possibly dangerous) when there are other drivers in front of you. This is why car makers invented adaptive cruise control.

With adaptive cruise control, your car uses radar and laser sensors to detect the speed of vehicles ahead and then adjusts your own speed accordingly to keep a safe distance. So, if the car in front of you slows down, your car will too. Once they’re out of the way, your adaptive cruise control will accelerate back to the speed you previously set. Standard cruise control, on the other hand, requires you to manually turn off the cruise control (or automatically disengage it by pressing on the brakes) when you notice traffic up ahead.

When to use cruise control

Cruise control was originally designed to be used on long drives and road trips when it’s possible to maintain a constant speed. Highway driving is still the typical time to deploy your cruise control, but the development of adaptive cruise control has made it possible to potentially use your cruise control for certain city driving scenarios as well.

When not to use cruise control

It’s also important to know when not to use cruise control. It's generally best to avoid using this feature when:

• There’s a lot of traffic on the road, and it would be difficult to hold one steady speed for long.
• The roads are wet or icy, as it may limit your ability to decelerate or stop quickly enough if you start hydroplaning .
• You’re fatigued, as the ability to relax your legs may increase the risk of potentially falling asleep behind the wheel.

Cruise control is more than simply a modern convenience. In the right circumstances, it can potentially enhance your driving experience by reducing fatigue, increasing safety and improving fuel efficiency. If you’re still wondering “How does cruise control work?,” perhaps it’s time to take the leap and try it out for yourself the next time you’re shopping for a new car.

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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

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How to Use Your 2012 Ford Fusion's Steering Wheel Controls

Last Updated: October 21, 2021

This article was co-authored by Hovig Manouchekian . Hovig Manouchekian is an Auto Repair and Design Specialist and the Manager of Funk Brothers Auto, a family-owned business operated since 1925. With over 30 years of experience in the automotive industry, Hovig specializes in the process of auto repair and maintenance. He is also very knowledgeable in common automotive issues and needs including engine repair, battery replacement, and windshield accessory and maintenance. Hovig's knowledge and hard work have contributed to Funk Brothers Auto winning Angie's List Super Service Award for five consecutive years. This article has been viewed 3,990 times.

Although everybody likes steering wheel controls because they are friendly and close to where they are needed, Ford overdoes the number of controls when they present them in this fashion. If you want to learn about their steering wheel controls for the 2012 Ford Fusion, this article will describe them for you.

Preparing Yourself to Use

• Others will need to be read when you are not driving, yet used when you are driving in normal traffic patterns.

Using Cruise/Speed Control

• 1 Learn where these controls are. Cruise control buttons are found on a panel of buttons in the area between the 9 and 6 positions of the steering wheel. They aren't found on a stick, like on some cars from 2012.
• Once it is on, you'll see an amber light illuminate on your dashboard near your gas status meter stick near the driving gear information section.
• 3 Learn how to set the speed. The speed can be set with the toggle switch buttons on the top row of the cruise control buttons. Accelerate to the speed you'd like to cruise at, and press the + sign, and take your foot off the gas pedal. Once it is on, the green set light will appear on your dashboard - on the side of the gas status meter stick, near the driving gear information section.
• 4 Increase your set speed. Either hold the Set + button until you've accelerated to your wanted speed or press and release the Set + a given number of times to increase the speed in 1 mph or 2 km/h increments - or utilize your accelerator pedal and press + to set the new speed - over-writing the original set speed.
• 5 Decrease your speed in a similar fashion. Press and hold the - Set button to decrease the speed and release when it is set or press the - Set button to decrease the speed in 1mph/2kmph increments or utilize your brake pedal until the speed reached is ample.
• If your speed decreases by more than 10 mph on an uphill, your cruise control will disengage - cancel.
• 7 Resume a set speed. If you have a speed set in the cruise control system and can return to that speed safely, press the RSM button - which is the CNCL/RSM buttons' second task.

Using Car Settings

• The options your car will have will depend on what options your specific car has - also some have more options than others. Some have blind-spot monitoring, while others have CROSS TRAK assist, and others may have additional trouble actions that need to be looked into to be driven with safety in mind and to control what's seen.
• Press it once, press RESET to have it cycle to test and display the status of each different vehicle system. Trouble faults are displayed in your message center inside your instrument cluster on your dashboard.
• 2 Learn about a variety of information from the INFO button. You can find your INFO button on the third row on the left side. Tap it to display your trip odometers (trip a and trip b), your gas tanks approximated miles to E (displayed as Miles to E), fuel economy rating (as AVG MPG), MPG is a graphical view of your MPG over the trip over a set period of time or chronometer of your driving time - when you utilize your RESET button to reset the information periodically. But if you tap it again, it'll cycle your information to a blank screen.

Using Media Controls (if equipped)

• 1 Recognize your media control buttons - if supplied with them. Each type of system will be set up a little differently. If your car just has a radio, you'll have different keys than ones that have nav system buttons, and ultimately a different one than ones with Ford Sync hands-free controls.
• 2 Learn about your volume controls. For those with just radios and those with navigation systems, your volume controls come on two separate buttons - controlled from the bottom right in your steering wheel. Volume up will be on the top row, volume down will be on the second row. But if you have Ford Sync, volume down is listed as - VOL, and VOL + is two separate buttons in the top row together.
• Tapping the left and right buttons will allow you to skip through favorited or memory buttons while tapping and holding (then releasing) will allow you to have your radio scan the airwaves for the next available radio station. Do this as many times as necessary to find the right station for you.
• When using Seek with CDs, seeking allows you to move between tracks (back or forward or up or down a folder level with MP3-formatted discs).
• 4 Learn about the Media button. The media button cycles through different modes for your radio. These include the radio (AM1, AM2, AM3 and FM1, FM2, FM3 in separate band selections), CD, Sirius Satellite (if available), and navigation system options. The Media button can be found as the bottom button (in a car with just a radio), as the bottom right button in a car with just a navigation system), or as the third-row right side button in one with SYNC or sync with Navigation).
• 5 Get access to voice command mode. Also on the row to the left of MEDIA is your voice command button. The button on the left of the third row that looks like a bunch of waves protruding from the mouth is your voice command enabling button. Press it once to start a voice command session, and wait for the tones. Press it again to stop a voice command session.
• 6 Learn about your calling button (for systems with Sync and hands-free calling). To activate a call, press it once to either start a new call or pick up on a call that's calling you. End a call by pressing and holding it or exit a phone mode. The call button will look like an upside-down landline phone with a ray pointing downward and can be found on the fourth line on the left side of one with Ford Sync with and without navigation.

Expert Q&A

• Ford favors all-caps styling on all their buttons that are user-facing. Anytime it is mentioned in this guide in upper-case, it is written on the controls that way. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• 2012 Ford Fusion Owners Manual (pages 18-27 and 84-87)

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What is cruise control in a car? Meaning and how does it work?

Cruising on the highway can be a lot of fun. However, it demands maintaining a constant speed for a long time. To achieve that, you need to press the accelerator pedal continuously, which can get tiring after a while. That’s when the cruise control feature of your car comes into play. So, what exactly does it do and how does it work? This article explains cruise control in a car and how to use it in different driving conditions. So, without stepping on the ‘brake’ pedal, read on!

What is cruise control in a car?

It is a system that accurately maintains the speed set by the driver without any external intervention. It automatically controls the speed of a car and only allows the vehicle to hit a speed set by the driver. It does not allow the car to cross that speed limit. This feature has become common among modern cars. You can even find this feature in the top-spec variants of some of the affordable hatchbacks and sedans.

How does the cruise control system work?

Cruise control in a car replicates the inputs of a driver to control the vehicle’s speed. But instead of pressing the accelerator pedal, it uses a different mechanism to maintain a constant cruising speed.

Initially, the system used a cable to control the accelerator (throttle valve). You can find these mechanisms in older cars. It adjusted the vehicle's speed by engaging the throttle with the help of an actuator that is controlled by a cable. The throttle valve is responsible for the power and speed generated by the engine. So, depending on the speed set by the driver, the system automatically adjusted the throttle position.

But with the advent of technology in the automotive industry, the cruise control system in modern cars entirely relies on electronics. Instead of a cable, the system now communicates with the throttle via various sensors connected to a computer (ECU - Electronic Control Unit). So, when you set a speed, the ECU calculates the throttle position and engages the throttle wirelessly.

The system constantly maintains the speed set by you (driver) irrespective of road conditions. For example, if there’s an incline ahead, cruise control adjusts the throttle accordingly to maintain the same speed.

How to use cruise control?

Before engaging the cruise control in a car, remember that the system is not intended to be used in adverse weather conditions. For example, you may refrain from driving the car at cruising speeds when it’s raining heavily. The low visibility and unpredictable road conditions make it unsafe to drive at such speeds. So, always be mindful of the weather condition and your surroundings before engaging the system.

Here are the steps to use cruise control.

Step 1 - Before activating cruise control, build up speed by accelerating the car. However, do not cross the speed limit of that particular road/highway.

Step 2 - Once your car reaches the desired speed, activate cruise control. Generally, the system activation button will be on the steering wheel. However, locating the exact button when the vehicle is parked is better to avoid any distractions while driving.

Step 3 - Next, you can take your foot off the accelerator pedal. If you have set the cruise control correctly, the car should maintain the cruising speed.

Step 4 - Keep your eyes on the road as it is very easy to get distracted when the car is accelerating automatically.

Step 5 - If you wish to accelerate when the cruise control is engaged, you can press the ‘+’ button on the steering wheel to briefly engage the accelerator pedal.

Step 6 - To decelerate, press the ‘-’ button on the steering wheel. You can also tap on the brake pedal. However, as a safety precaution, almost all cars will deactivate the cruise control as soon as you press the brake pedal.

The buttons to activate cruise control or accelerate/decelerate may vary from one car to another. So, do check the owner’s manual before fiddling around with the system. It’s better if you are familiar with the controls before driving the vehicle, as it will avoid unnecessary distractions.

How to install cruise control in a car?

Can you install cruise control in a car? The answer is both yes and no. You may install an aftermarket kit if it’s an old car that does not rely on electronics to control all the engine-related functions. But installing such a kit becomes almost impossible in modern cars due to the complex electronics.

It is a complex process to install the system in new cars as you have to fiddle with electronics, and it also requires the fitment of hardware. So, it can only be done during the time of car manufacturing. Moreover, if you try installing an aftermarket kit, you may void the warranty offered by the OEM (Original Equipment Manufacturer). On top of that, it is not recommended to go for an aftermarket cruise control kit as it may compromise safety.

Newly launched cars are equipped with cruise control except for a few entry-level models. So, instead of investing in retrofitting a system, it's better and safer to spend that money on buying a car with a built-in system.

Adaptive cruise control

The new technology also allows the system to automatically adjust the car's speed depending on the speed of the vehicle ahead. This feature is known as adaptive cruise control. It ensures that the car maintains a safe distance from the vehicle ahead despite the constant change in speed of the vehicle moving ahead. It is instrumental in highways or during rush hour traffic and reduces driver fatigue.

It is also a level 1 autonomous driving system. The system uses radar sensors to calculate the speed and distance of the car ahead. For instance, if the vehicle in front of you slows down/speeds up, a car with adaptive cruise control will reduce speed/accelerate automatically without any external inputs.

You can find this feature in premium cars. But gradually, it is trickling down to not so expensive cars as well. Adaptive cruise control is a part of an advanced driver assistance system.

Pros and cons of cruise control

Cruise control makes driving easy and convenient, and at the same time, it also takes care of safety. But like every other feature, it has its own set of advantages and disadvantages, which are elaborated in the following section.

Below are some of the pros of the cruise control system.

Reduces driver fatigue: The primary role of cruise control is to maintain a constant speed without you having to step on the accelerator pedal. That means you can rest your right foot and can stay relaxed. It is helpful when you drive long distances on highways where you need to maintain a constant speed for long durations.

Improves fuel economy: When maintaining a constant speed, the engine will not get stressed as it need not change the intensity of operation. To put it in a simple way, when the engine runs at constant RPMs (Revolutions Per Minute) , it consumes less fuel. Hence, when driving long distances on highways, the cruise control system can improve fuel economy.

Helps to drive within the speed limit: You may drive at normal speed on busy urban roads. But when you hit the wide and smooth highways, you may end up crossing the speed limit. You may not even realise that you have crossed the speed limit until you glance at the speedometer. Cruise control can help you in this regard as you can easily set a speed limit and let the system do the work. The system will not allow the car to go over the speed set by you.

Increase/decrease speed with a click of a button: Typically, you use the accelerator and brake pedal to increase/decrease the speed of your car. But when the cruise control is engaged, you can even use the buttons to do the job for you. However, ensure that you are familiar with the functions of the buttons, as it may feel unnatural in the beginning. It is best to practice using the buttons in a safe environment before using them on public roads.

Works well with automatic cars: Cruise control works best with automatic cars as you need not worry about changing gears. The ECU or the onboard computer shifts the gears automatically when there is a change in speed and works well when cruising automatically. It means you only need to focus on steering the vehicle.

As mentioned earlier, cruise control also has some cons, which are listed below.

Limited use on Indian roads: Cruise control is suited for wide and long highways where drivers follow the rules. Although India has some excellent highways, many drivers may disregard rules which creates an unpredictable environment. Also, cattle, dogs and other animals may venture into public roads and make the situation even more tricky. Hence, it may be challenging to cruise at high-speeds.

Hampers reaction time: As mentioned above, the roads in India are unpredictable. You may have to perform emergency braking to avoid any obstacles on the road. When driving with manual controls, your right foot will be on the accelerator pedal, and it is easy to move your foot to step on the brake pedal in an emergency. But, when using cruise control, your right foot will be resting on the floor of the car, and it may take a bit more time to reach the brake pedal. This difference in reaction time may be the difference between you avoiding an obstacle or crashing into it.

Can induce drowsiness: If you use cruise control for long durations, you may end up feeling drowsy. Since the car is accelerating at a constant speed, your alertness level may drop in the long run. Hence, it is recommended that you manually control the vehicle once every 10-15 minutes when using the automatic cruising feature on highways.

Cannot use at night: Cruise control is of no use during night drives as the visibility is poor. Even with well-lit roads, the visibility is not as good as daylight. So, allowing the car to maintain a constant speed may be a safety concern, even on roads that are familiar to you.

It does not work well with manual cars: In a manual car, you have to change gears by yourself. The cruise control will handle the acceleration/deceleration, but you still need to shift the gears manually to maintain the optimum RPM. It can be irritating at times when you need to slow down and accelerate immediately. It may not be a dealbreaker, but it kind of refrains you from experiencing the full potential of the automatic cruising system.

Cruise control vs adaptive cruise control: Key differences

The below table highlights the key differences between cruise control and adaptive cruise control.

What is the difference between cruise control and speed limiter?

Sometimes you may get confused between cruise control and speed limiter as both are related to the car's speed. Refer to the table below to understand the difference between both the systems.

List of cruise control cars In India

Cruise control is a feature that we can see in a lot of cars. Gone are the days when this feature was limited to premium vehicles. Even vehicles with affordable price tags are equipped with intelligent features. Here’s the list of popular cars with the automatic cruising system.

List of adaptive cruise control cars in India

Adaptive cruise control is the more advanced version of the standard automatic cruising system. Currently, this system can be seen only in premium cars in India. Below is the list of popular cars with adaptive cruise control.

Frequently asked questions

Here are some of the most commonly asked questions related to cruise control in cars.

No, it is not a standard feature in cars. However, almost all vehicles costing above Rs. 5 lakhs are equipped with cruise control.

It is not advisable to install an aftermarket cruise control kit in your car as new vehicles have complex electronics. Moreover, installing such a kit involves a complicated process, and it may also void the warranty provided by the car manufacturer.

Typically, the cruise control button is located on the steering wheel for easy access. However, the location of the button may vary depending on the make and model.

Yes, you can use cruise control in a manual car. However, you need to manually control the gear shifts when the vehicle slows down or accelerates when the system is engaged.

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"ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel

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What does the "ACC/RES, CANCEL, COAST/SET" button do? It's located in the middle of the steering wheel. I turned my "cruise" button/switch that is NEAR THE RADIO to on which shows "ASC" (I think it says ASC) in green letters on the dashboard. I was on the highway and I pushed the "ACC/RES" switch up, and my RPMs went to 4000RPM real quick with my car in neutral. This was on a 100-degree day with my A/C On. I saw the word "CRUISE" light up for a second near my odometer and RPM gauge ( i think it said cruise). Then I noticed that I was going 60 MPH for a long time without pressing on the gas with my car in neutral. So I did the exact same thing, but this time I pushed the "COAST/SET" button down and the word "CRUISE" flashed on for a second and my RPMS went to 4000 real quick and i experienced the same results as I just wrote above this paragraph. HERES ONE PROBLEM, Tonight I was on the highway with my A/C on and it was a little cooler outside. My "cruise" button/switch was already on, and then I pushed the "COAST/SET" button up and my CAR REDLINED to 7000RPM real quick in neutral like you would start out in a drag race. I quickly pushed down the "COAST/SET" button to "CANCEL" and it stopped. Now I'm scared to touch that button anymore. I always thought that the cruise control button was the button near the radio that says "ON" "CRUISE" "OFF". Every time I push it on the words "ASC" ( or something close" come on in green letters. (94 base 3000gt rebuilt engine,tranny,etc.)  

So your trying to set your cruise with the car in neutral? When you push the button/switch near the radio your turning the cruise or assisted speed control(may not be the right words but it works) system on, then the steering controls "set", "resume", "accel." "coast" and "cancel" control the cruise system, if your messing with it in neutral I wouldn't think it would try to work but then again, I've never tried to make mine do it. I was just happy after three trips of 600 miles without it I finally fixed it  

Re: "ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel Yes, this is the first time i ever touched that button  

Re: "ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel Do the words "CRUISE" come on and stay on untill you press "CANCEL" Im guessing but does the "ACC/RES" switch stand for Automatic Cruise Control and Reset" So whats the difference between "ACC/RES" and "COAST/SET"  

max3 said: Im guessing but does the "ACC/RES" switch stand for Automatic Cruise Control and Reset" So whats the difference between "ACC/RES" and "COAST/SET" Click to expand...

Re: "ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel Uh...why are you putting your car in neutal while on the highway?...doesn't make sense and the cruise control will never work while in neutral.  

Paco said: Uh...why are you putting your car in neutal while on the highway?...doesn't make sense and the cruise control will never work while in neutral. Click to expand...

Re: "ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel You're wasting more gas than you would think. It's easy to maintain 55-60mph @ 2k rpms than it is to do pulls all over the place. When you press the cruise button on the center console it activates the system, hence the "ASC" lights on the dash. You obviously have to be in drive, in gear, for cruise to work. Once you "set" the mph you want to achieve via the steering wheel buttons, the cruise computer will attempt to keep you at that specific mph. I have all needed cruise parts for sale as well, if you find any of yours to be defect.  

Re: "ACC/RES, CANCEL, COAST/SET" button in the middle of the steering wheel I would think that would use more gas than if you just stayed at 65 with your cruise on.  

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Cruise Control

To set speed.

(With Adjustable Speed Limiter (ASL))

Activate the cruise control system by pressing the MODE switch. The cruise main indication (white) is displayed.

(Without Adjustable Speed Limiter (ASL))

Activate the cruise control system by pressing the ON switch. The cruise main indication (white) is displayed.

Accelerate to the desired speed, which must be more than 25 km/h (16 mph).

The cruise control speed setting cannot be performed under the following conditions:

(Automatic transaxle)

The selector lever is in the P or N position.

(Manual transaxle)

The shift lever is in the neutral position.

The parking brake is applied.

(Vehicles with Adjustable Speed Limiter (ASL))

The MODE switch for the Adjustable Speed Limiter (ASL) is pressed.

On a steep grade, the vehicle may momentarily slow down while ascending, or speed up while descending.

The cruise control will cancel if the vehicle speed decreases below 21 km/h (13 mph) when climbing a steep grade.

The cruise control may cancel at about 15 km/h (9 mph) below the preset speed such as when climbing a long, steep grade.

The vehicle speed preset using the cruise control is displayed in the instrument cluster.

[Release] Toasty's Cruise Control 2.1.0

Information.

This is my largest FiveM project so far, and I enjoyed making it. Toasty’s Cruise Control is a script that will allow you to mimic how cruise control works in real life. To activate cruise control press F7 (configurable in v1.5+) on the keyboard. Just like real life cruise control features, you can accelerate while in cruise control mode and after you have finished accelerating, cruise control will cruise at your ending speed. And, if you tap the brakes cruise control will disable.

https://github.com/ToastinYou/ToastysCruiseControl/releases/tag/2.1.0

PREVIEW/SHOWCASE

https://youtu.be/6J9pPO4oDA0

INSTALLATION TUTORIAL

https://youtu.be/6FJhC259evU

SOURCE CODE

https://github.com/ToastinYou/ToastysCruiseControl

SUPPORT: https://discord.gg/bX7uJw5

Does your plugin not have the issue of setting it on a boat? Another plugin has the same functionality however if you set it on a boat it would start flying

Yes, the boat flying issue happens with this mod.

Also to @ToastinYou

Mod issue: Hitting a vehicle or object at some speeds will not slow you down/disable cruise

Both of those issues should now be fixed. Thank you for informing me!

No problem, a couple things though, when on foot or in a vehicle it shows the Deactivated notification at all times unless above that speed of 5. Also, Hitting vehicles at 70+ MPH has a big chance of not deactivating cruise which can cause massive bugging out of vehicles haha.

Yeah, probably shouldn’t be coding while I’m tired AF… LOL Will fix the notification thing rn, as for the cruise control being bugged during collisions the speed fix was just temporary until I can get around to figuring out collisions and such tomorrow, so tomorrow I’ll look more into that.

Thank you, and on that note I’m off to bed lol

Awesome script! Keep up the good work, bro!

Version 1.3 has been released!

https://github.com/ToastinYou/ToastysCruiseControl/releases/tag/1.3

1.3 Changelog:

• Disabled toggling of cruise control in planes.
• Changed cruise control toggle button from F10 to F7 due to conflicting keybinds.
• Added more notifications.
• “Fixed” the bug that caused cruise control to stay enabled while stationary/stuck against an object.
• You can now longer turn on cruise control if you’re going under 20mph (most cars IRL are like this).
• Fixed possible performance issues.
• Code cleanup.
• Fixed speeds not being converted to mph, causing weird m/s to mph ratio differences.

Major issue, every one MPH you go above 20 it will show a notification, so i’m sure it’s also likely enabling/disabling cruise at the same time

What do you mean? I did not encounter this in testing.

Yeah, not sure. If you encounter it again just try and explain it a little better so I can understand, I can’t really make sense of the issue you were having.

After a while of testing I can say that the mod is much better now. The only real problems I have is the front wheels seem to bend/collapse inward while cruise is set, which messes with the suspension. And, cruise sometimes disables if you hit a bump the wrong way (rarely though)

Can you add a config to disable controller?

Just out of curiosity, why do you want to disable the controller keybinds of this script?

as luxart uses B for siren tone and conflicts with the cruise control. it seems just pressing B enables it

Thanks for the feedback, I’ve never noticed the wheels/suspension but will look into it. The cruise control will deactivate whenever one wheel comes up off the ground.

Investigation Update on the   Sapphire Princess

Cruise Line : Princess Cruises

Cruise Ship : Sapphire Princess

Voyage Dates : April 5–May 7, 2024

Voyage number: H408

Number of passengers who reported being ill during the voyage out of total number of passengers onboard : 115 of 2,532 (4.54%)

Number of crew who reported being ill during the voyage out of total number of crew onboard : 28 of 1,066 (2.62%)

Predominant symptoms : diarrhea and vomiting

Causative agent : norovirus

Actions : In response to the outbreak, Princess Cruises and the crew aboard the ship reported the following actions:

• Collected stool specimens from gastrointestinal illness cases for testing.
• Isolated ill passengers and crew.
• Increased cleaning and disinfection procedures according to the ship’s outbreak prevention and response plan.

VSP remotely monitored the situation, including review of the ship’s outbreak response and sanitation procedures.

Note : The gastrointestinal illness cases reported are totals for the entire voyage and do not represent the number of active (symptomatic) gastrointestinal cases at any given port of call or at disembarkation.

Learn how passengers can protect themselves with these  tips for healthy cruising .

• Inspection Reports
• About Inspections
• Cruise Ship Outbreak Updates
• About Noroviruses on Cruise Ships
• VSP Operations Manual   [PDF – 5 MB]
• VSP Construction Guidelines   [PDF – 4 MB]
• Illness Prevention Information
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