ky cdl pre trip checklist

Best Free CDL Pre-Trip Inspection Checklist | Trucker Safety & Profit

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The indispensable CDL pre trip inspection checklist is one of the most important rituals of a driver's day. Industry veterans know this routine like the back of their hands—it's that vital to the trade— but new drivers struggle with how to remember their CDL pre trip inspections, especially for the exam.

Drivers are required to complete this walkthrough at least every 24 hours, after their mandatory 10-hour break. A detailed inspection can safeguard not only your safety but also that of everyone else on the road.

This article will walk you through an exhaustive checklist to follow before every trip, as well as the potential costs of not doing so. We've designed this list with YOU in mind, so we're throwing in some money-making tips that will help you avoid steep fines and costly repairs.

"Spotting and fixing vehicle defects early on keeps you safe and your truck in good shape."

Why Following the CDL Pre-Inspection Checklist is So Important

The price of a failed DOT inspection makes completing a thorough CDL pre trip inspection checklist even more pressing. Violations can cost carriers thousands each year in both penalties and out-of-service (OOS) trucks. According to the FMCSA, around 20% of vehicles are OOS due to failed inspections at any given time. For an owner-operator, this means you'd be paying thousands in vehicle payments on a truck that's not earning you any money.

The pre trip checklist is designed to avoid any possible accidents due to equipment failure and failed safety inspections. A few minutes of caution pays for itself ten-fold down the line.

DOT & Truck Inspection

• Steer Axle/ Rear Suspension
• Side of Cab
• Rear of Cab

Driver Shaft/Rear Frame

• Trailer Front/Side/Rear- Trailer Suspension

Gauges/Inner Truck

• DVIR form fill out

"Most pre-trip truck inspection lists cover safety. We go beyond that with time and money-saving tips in our pre-trip inspection checklist PDF." - Brian Smith, Director, Global Marketing of Cota Systems

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• Download the Printable PDF

General Tips Throughout Your Pre-Trip Inspection

Because you don't have access to a pre trip inspection checklist during the CDL exam, drivers have created a few tricks to pass this part of the test. The most common memorization tricks are:

BBC: Is any plastic or metal bent, broken, or cracked?

CDL: No hard materials should be cracked, damaged or loose.

ABC: Are there any abrasions, bulges, or cuts on the rubber?

PFL: Peak for leaks in fluid and air containers.

PMS: Are bolts properly mounted and secure?

ABCDF: Do you see abrasions, bulges, cuts, dry rot, or frays?

A bit of common sense will help you put these acronyms to good use. For example, there's no way BBC would apply to rubber, as rubber wouldn't be bent, cracked, or broken. Most drivers pick one for each material type and stick with it until they get more comfortable with the list.

What are the ABCS in a pre-trip inspection?

As mentioned above, the ABCs refer to Abrasions, Bulges, and Cuts to check for during the Class A CDL pre-trip inspection. This applies to rubber or soft surfaces - things like tires, hoses, and rubber bushings.

How Long Should a Proper CDL Checklist & Inspection Take?

Ideally, it takes 15-30 minutes to run through the CDL pre trip inspection checklist depending on experience level and whether or not any issues are found. If issues are found, they must be fixed right then, before taking any more loads.

The cost of preventative maintenance averages $15,000 per truck per year. This figure is a drop in the bucket compared to the cost of inoperable equipment. Breakdowns and crashes due to mechanical failure cost carriers billions industry-wide. Consider an owner-op paying $3,500 per month on insurance and loan payments. Those payments still have to be made regardless of whether the truck is in the shop or on the road. Adds up quickly right? Spending a bit of extra time and money on prevention keeps trucks on the road and earning money.

Get your Free CDL Pre-Trip Inspection checklist today!

Standard cdl pre trip inspection checklist.

Our pre-trip inspection Class A checklist serves two purposes: helping new drivers pass this portion of the CDL exam, and guiding CDL holders through the process with 100% accuracy every time.

A few exam tips before the pre-trip checklist:

• Point to or physically touch each area being inspected. This will help your memory and prove you know your stuff.
• Start with a big section and break it down into small sections from left to right like reading a book.
• During the test, make at least 2 checks for every item or area.

▢ Hoses: all hoses should be secured on both ends with no splits or cuts

▢ Fluids: engine oil, washer fluid, coolants, and power steering

▢ Belts: no more than 1/2"" to 3/4"" of give, securely mounted with no fraying ends

▢ Alternator: securely mounted, belt in good shape

▢ Water pump: properly mounted with no split or leaking hoses

▢ Air compressor: securely mounted, no visible or audible leaks

If Left Unchecked:

Oil leaks and coolant issues are two of the most common breakdown causes, both of which can be spotted during pre-trip. Scheduling dry maintenance every 10,000-25,000 miles and wet maintenance every 25,000-50,000 miles can prevent most engine issues. These regular services, ranging from $50-$450 , are nothing compared to the price of replacing or rebuilding an engine - $20,000 - $40,000 . Thorough pre-trip inspections are the best way to avoid engine breakdowns and escalated damage.

▢ Brake Pads: ¼ minimum brake pad thickness

▢ Slack Adjuster: 1” of play and at a 90' angle to the brake chamber

▢ Brake Chamber : no audible leaks or visible damage

▢ Brake Hose: securely mounted, no audible leaks, splits, or cuts

▢ Brake Drum: no bluing from excessive heat, securely mounted

Brake problems are the most common cause of semi-truck accidents . While over-breaking is a big player in this, a lack of maintenance and unnoticed airline damage usually play roles, too. 

Brake pad replacement costs $150-$300 per axle ($750-$1,500 total) and $80-$160 per hour in labor. The consequences of brake failure are incalculable - body repairs, cargo damage, and strikes to your carrier safety rating will follow you. The last thing you want to deal with is higher insurance premiums or trouble getting placed on loads. Take this part of your pre-trip inspection extra seriously.

• Front: clearance lights, headlights, high beams, turn signals, flashers
• Sides: turn signals, flashers, clearance lights
• Rear: tail lights, brake lights, left turn, right turn, 4-way flashers
• Front: clearance lights
• Rear: clearance lights, tail lights, license plate lights, brake lights, turn signals, flashers

▢ Reflector Tape: clear, free of dirt

If Left Unchecked:  

Fines for a headlight out vary from state to state, but the consequences of non-functioning brake lights or turn signals could confuse drivers and create unsafe situations. Both of these can be spotted and fixed during a pre-trip inspection. It's easy to run to the shop and change the light yourself if possible. License plate bulbs are just a few cents, and headlight kits range from $40-$250 . Don't add the price of a ticket on top from getting pulled over!

On the topic of lights, it's important to note that warning lights like the engine light or battery alert light should be addressed immediately to avoid developing into bigger issues down the road.

▢ Wheel inside: not broken, no illegal welds

▢ Wheel outside: no cracks or illegal welds

▢ Tires: no cuts or bulges, air gauge matches manufacturer recommendations, tread depth at least 4/32" and evenly worn

▢ Spacing: duals are properly spaced

▢ Valve Stem: not audibly leaking. metal cap in place and secure

▢ Lug Nuts: present, tight, no cracks

▢ Hub Seal: not cracked or loose

Tire problems cause 8,000 truck accidents per year. While flats are sometimes unpreventable, blowouts can be caused by improper inflation , which can also shorten the lifespan of your tires via irregular wear and tear. Timely alignments and rotations can also keep tires running longer; the price of new big rig tires is from $250 to $600 . A tire blowout mid-load can make you miss your appointment and waste precious driving hours - all the more reason to be thorough in your truck inspection.

Something to keep in mind is the way you conduct your pre-trip checklist is important. For example, there are a lot of videos and content showing truckers how to check their tires by kicking, beating, and even using a hammer. Hitting a tire with force like that, in the right spot (damaged) can lead to a blow-up and severely injure you and your truck. Even lugging around a damaged tire can lead to a blow-up . Stay safe and take all necessary precautions!

Steer Axle/Rear Suspension

▢ Steering Shaft: not BBC, securely mounted

▢ Steering Gear Box: not BBC, securely mounted, no visible leaks

▢ Hose: no visible leaks, properly mounted

▢ Pitman Arm: not BBC, securely mounted, nuts and pins are all hardware is present and secure

▢ Drag Link: rubber is in good shape, bushings are properly greased and not split or cut

▢ Upper/Lower Control Arms and Tie Rod: not BBC, securely mounted

▢ Spring Mounts: not BBC, securely mounted

▢ Leaf Springs:  not BBC, securely mounted, not shifted or scissored

▢ U-bolts: not BBC, securely mounted, all accounted for

▢ Shock Absorber: not BBC, securely mounted, no visible leaks, rubber bushings aren't dry rotting

If Left Unchecked: 

On their own, each of these parts isn't a huge deal to replace. For example, 

• Steering Shafts: $100-$300
• Pitman Arms: $50-$200
• Steering Gear Box: $150-750
• Shock Absorber: $50 - $90

On the other end of the spectrum, neglect can lead to the truck leaning to one side, which can cause further damage. Blown shock absorbers will also make your truck hard to handle, steer, and control. Say it takes a mechanic 3-5 days to diagnose and fix a suspension issue. You could lose out on $1,000 - $3,000 in earnings that week, plus the several hundred it will cost in repairs. Spotting these issues during your 15-minute pre-trip inspection could save you thousands.

▢ Mirrors: mirrors adjusted properly and without cracks, free of dirt

▢ Foot Pedals: unobstructed

▢ Horns: functioning properly

▢ Windshield: no stickers, cracks, or excessive dirt

▢ Heater/defrost: both operate when the fan is set to max

▢ Wipers: arms move properly when turned on, and wiper fluid works

▢ Steps: mounted and secured

▢ DEF cap: secured

▢ Fuel cap: gasket and vent in place, chain secures cap to the tank

▢ Skirting: no damage, panels secure

To be mid-trip and discover your defrost or wipers don't work can be a scary feeling. A suddenly obstructed view with no way to clear it is what the in cab inspection is meant to avoid.

With the average truck eating up $15,000 per year in maintenance and repairs, it's the little things that add up to such a steep number. For example, fixing a windshield can cost anywhere from $500 - $2,000, depending on the truck type and severity of damage. Wiper blades cost $14 - $35 on average, and an AC compressor would cost around $200 to fix/replace . It's easy to see how these numbers add up fast, but waiting until something breaks on the road and taking on the cost of an OOS violation can quickly double and even triple those numbers.

▢ Frame: no illegal welds, not BBC, no rust

▢ Drive Shaft: not BBC, properly mounted, not twisted, and the U-joints are clean

▢ Universal joint: not BBC

▢ Differential: no leaks

Rusting frames and chassis can be prevented and stopped in their tracks with preventative protective sprays . To protect a drive shaft, keep it free of dirt and debris and make sure it's well lubricated. The price of a new driveshaft is around $1,200 . The cost of checking it during pre-trip is free. Remember, the purpose of a pre trip inspection Class A is to not only keep you safe but to spot mechanical issues before they get worse.

▢ Bolts/Bracket: all accounted for and secure, not broken or bent

▢ Locking pins: all accounted for and secure, not broken or bent

▢ Release Handle: releases freely and is in the locked position.

▢ Apron: no cracks, no gap between apron and 5th wheel plate, securely fastened

▢ Skid Plate: no cracks, properly greased, securely mounted

▢ Platform: securely mounted, not cracked or broken, no illegal welds

▢ Kingpin/Locking Jaws: locking jaws are wrapped around kingpin, which is straight with no chips or welds

▢ Air Lines: securely mounted at both ends. Lines are free of cuts, no audible leaks.

▢ Electrical line: secured at both ends. Lines are free of cuts, no audible leaks.

The consequence of worn brackets or pins is accidental uncoupling, otherwise known as dropping a trailer. Not only can this cause accidents, but it can damage the trailer and the cargo inside. In these cases, the carrier is almost always liable for any damages.

▢ Header Board: properly mounted and secured, not BBC, no missing rivets

▢ Clearance lights: not loose, cracked, or dirty 

▢ Top rail: No cracks or collision damage.

▢ Rivets, holes: no holes, all rivets in place.

▢ Landing gear: properly mounted and secured, not BBC, shoes are present, handle moves freely

▢ DOT tape: covers at least 50%, not dirty or peeling

▢ Floor: no holes

▢ Cross members: none are damaged, missing, or twisting

▢ Tandem release: properly mounted and secured, not BBC

▢  Slide rail: properly mounted and secured, not BBC

▢  Pins: engaged

▢ Clearance lights: not cracked or dirty

▢ Doors: not broken, no holes, seal intact

▢ Hinges:   securely mounted, not BBC

▢ Door handles and rods: securely mounted, functioning properly

▢ Lights: securely mounted, not cracked or dirty

▢ DOT tape: clean, covers 100% of the backside of the trailer

▢ Bumper: properly secured, not BBC

The trailer keeps your precious cargo safe. Issues with the cross members, flooring, or doors leave cargo unsecured and exposed to the elements. Of this list, the most expensive fix is replacing or repairing cross members. Just one broken cross member puts a truck OOS, and repair/replacement costs thousands , mostly in labor. How can they get damaged?

• sloppy hooking/unhooking
• exposure to the elements
• uneven loading
• punctures from inside the trailer
• blown tires

If you notice trailer damage during your Class A pre-trip inspection, you'll have to get it fixed before taking any more loads.

▢ Air pressure: set to proper operating range, no warning lights

▢ Temperature gauge: rising to proper operating range, no warnings

▢ Oil pressure: rising to proper operating range (25-50 PSI), no warnings

▢ Voltmeter: operational, 13 - 14 volts

▢ Dashboard light indicators: check the indicators for the high beams, turn signals, and flashers.

▢ Fuel: gauge matches visual compared to looking in the tank

▢ Tachometer: 1000-1500

▢ Water temperature: 180-205 degrees

▢ Def level: minimum of one light bar

If these gauges don't pass the pre trip inspection Class A checklist, it's likely due to faulty wiring or a fuse issue. You'll have to identify the source or take it to someone who can.

Simple electrical fixes can be done on your own. At a mechanic, a blown fuse costs around $100 to repair, and a full rewiring can cost anywhere from $1,000 - $2,000 .

Preventative maintenance includes replacing old connections with more modern technology and having circuit protectors checked during regular maintenance.

A DVIR, or Driver's Daily Vehicle Inspection Report, is the form that drivers fill out during the Class A pre-trip inspection and at the end of their day. It's designed to keep the company informed of any missing or damaged parts of the truck, keep maintenance costs as low as possible, and keep trucks on the road safely.

Drivers should keep their completed forms accessible and stored for up to 6 months, just in case they're asked to pull them for reference.

Most Common Issues Found During Pre Trip Inspection

Below are the most common issues found while running through a CDL pre trip inspection checklist. If left unchecked, these things can lead to getting pulled over and receiving a violation, or worse, causing a breakdown where you or others are hurt. 

Here's a run-through of what to do if you run into these common issues and how to avoid them."

Broken Lights

What to Do:

The first of the three L's (lights, leaks, and leans), broken lights are an easy way to get pulled over and trigger a full-blown roadside inspection. If you notice an issue with one of the many lights during your truck inspection, you're required (and it's in your best interest) to get a replacement immediately.

How to Avoid This:

Obviously, there's no way to avoid lights going out. However, you can avoid faulty reflectors by getting regular washes, especially if you've driven somewhere rural or salted. Shippers appreciate a clean truck, too.

Maintenance as a Money Saver:

Lighting violations are known as ""gateway violations"" because they open the door to law enforcement noticing other things wrong with the truck. This makes staying on top of maintenance even more pressing. For example, most new reflectors cost around $5 each . If you get pulled over for missing or faulty reflectors, it could trigger an inspection that makes you A) sit still and waste hours, B) miss your appointments, C) end up OOS, and D) get in trouble with your company.

Leaning is the second of the three L's. A leaning truck could indicate

• tire problems
• faulty suspension
• worn spring bushings
• airbag issues

The first step is to check out the above mechanisms yourself for any noticeable worn springs or airbag problems. To avoid damaging any equipment even further, go to the shop after your pre-trip inspection and get it checked out.

Uneven loading puts excess strain on the truck and can cause leaning over time. You have every right to ask shippers to fix uneven or shoddy loading.

A new leaf spring is one common solution to fixing a leaning truck. Costing anywhere from $80 - $450 , it's a solid first step compared to full suspension repair which costs $1,000 - $2,000.

The last of the three L's are leaks. When you look on the ground near the engine, do you see any puddles or fluids? There are three common sources:

• power steering
• water leaks
• brake fluid

Identify the source. What type of liquid is it? Does it smell? How big is the puddle? Is the radiator cap secured and not broken? If you can identify the problem and fix it - great. If not, make a call to the nearest shop.

The reason you check every bolt and hose on the pre trip inspection Class A checklist is to avoid these mystery leaks. Preventative maintenance is key.

Maintenance as a Money Saver: 

It's a lot cheaper to replace nuts and bolts than it is to replace an entire system that's been damaged due to ongoing leaking. Driving with a leaking radiator can damage engine bay components and require repairs to a chain of other parts. If the problem was the radiator gasket, for example, the cost of a replacement would only be around $40 .

The limit for tread depth is 4/32" on steer tires and 2/32" on others to pass a Class A pre trip inspection. Sometimes tires look good during inspection, but after a long haul, treads have worn down too low. 

Tire replacement should be prompt - blowouts happen all the time and can do serious damage to the underside of the trailer. Check if the tire is still under warranty, and have it and any others replaced ASAP.

Make sure tires are always filled to the manufacturer's recommendation and ideally the same PSI in each tire. Note that tread loss accelerates in extreme heat. Tires gain about 1 pound of pressure every 10 degrees as the temperature increases. Asphalt can be 20-50 degrees hotter than the air; keep that in mind before thinking any bulges or worn tread will be fine.

New big rig tires cost $250 - $600 , or $0.04 per mile. Because of the high cost, many large fleets are opting for imported tires to keep costs down. Research reviews on the brand you have in mind first - many have bad reviews from truckers. Here's a video that shows how much time can be lost by blowing a steer tire.

Overheating

Pull over safely and legally. Give the truck some time to cool down in idle. Try turning the heat on to get some of that heat out of the engine - it will feel uncomfortable but protecting the engine is worth it. Check to see if the radiator is jammed with debris or has bent fins. An overheating truck could be difficult to diagnose, and you'll most likely have to have a mobile mechanic come to you. If you were going up a steep grade, it might have just been the way you were driving.

• Keep the radiator clean
• Check the muffler for soot build-up in older trucks
• Don't use cruise control in hilly areas
• Don't overload the trailer

Constant overheating can be hard to diagnose, and it can make you chronically late to appointments. Regular maintenance and a thorough CDL pre trip inspection Class A are where the little details can be spotted and nipped in the bud.

Cota Systems Make More Money Per Mile CDL Pre-Trip Checklist

We know the struggle of hauling empty or partially full trucks and deadheading between every load. Our solution? Seamlessly connecting truckers with available LTL loads that complement their route and trailer capacity. Free and easy to use, Cota Systems™ platform makes it simple to earn more money per mile. We'll send you available LTL truck loads on your preferred routes as soon as they're posted.

Simply sync all of your favorite load boards into Cota Systems™ for easy browsing and instant notifications.

COTA SYSTEMS™ Mobile App

Cota Systems™ mobile app connects drivers with new loads and their dispatchers no matter where they are.

• Extra loads on the road.
• Scan and send documents.
• Keep track of your earnings.
• Seamless dispatch integration.
• Real-time load notifications.
• Stay connected anywhere.

Whether you're trying to figure out how to find box truck loads , or you just aim to connect in real-time, anytime, staying efficient on the road makes the difference between staying profitable and staying afloat.

Our trucking dispatch software is completely free and feature-rich, saving teams time on paperwork and document sharing. The platform integrates seamlessly with the driver app simplifying everything from load finding to billing.

How Cota Systems™ helps drivers 10X their income:

• Eliminates wasted miles with convenient LTL and partial load boards
• Efficient document uploading and one-click billing
• Communicate with shippers in the same app
• Load board syncing cuts down the time it takes to book a load

Bypass Construction

The DOT 511 traffic app provides state-specific traffic and construction updates. Check for delays on your route to get ahead of detours and lane closures. Each state has their own app, so download it ahead of time.

Why does it matter? If you earn $0.60 per mile on a 400-mile trip, that's $240 earned in roughly 8 hours. Now, say traffic adds 1.5 hours to your trip. You still earn the same $240 AND you don't have the opportunity to pick up another load before you reset. Time is money!"

In 2016, truckers were delayed a total of 1.2 billion hours because of congestion on the road - that's in the billions! Truck bottlenecks are mostly common in major cities. Planning your route ahead of time to avoid traffic delays is crucial to your bottom line.

Weather Apps

Winter and summer storms can eat into income and create seriously dangerous roads. Depending on the weather, you might be able to plan a different route to avoid delays or change the time and place you stop to rest. The AccuWeather app is a popular choice among drivers. 

The horror stories of drivers getting stuck at a rest stop for days or getting blown over by strong winds paint the ugly picture of the weather as a driver's biggest opponent.

Truck Parking

After finishing your Class A CDL pre trip inspection, take a few minutes to map out overnight parking spots along your route. American Truck Parking does a good job of showing truck stops and rest areas that offer overnight parking, as well as the pricing, pictures, and other amenities. You can filter out for gated parking spots, CAT scales, showers, truck washes, and much more. Compare pricing beforehand and save yourself the cash!

Speaking of cash, it's important to take advantage of freight factoring. This method can offer truckers immediate cash flow, while waiting on customers to pay.

In addition to managing your cash flow, be sure to consider freight insurance , this protects your trucks and cargo from any potential risk during transit.

Dock Details

Headed to a new shed? Check them out on Dock 411 to confirm things like pallet restrictions and hours of operation. Not sure if you can fit? Most places have pictures that other drivers took or reviews about slow loading and yard hazards.

The benefit? This helps plan things like getting lunch, calculating hours, and knowing whether or not you even want to take a certain load. If you see reviews that a shed has an average 7-hour loading time (the standard is 2.5 hours ), you can have a conversation with dispatch early on to make a game plan regarding detention and/or layovers.

While researching docks, don't put your well-being on the back-burner. Be sure to invest in the right truck mattress for a good night's sleep during layovers or breaks.

Gas Buddy helps truckers find the cheapest gas prices along their route. While you're looking, you can see what stops have showers, food, repairmen, and other amenities so you can save time at a 1-stop shop.

For reference, the average owner-operator spends $45,605 on fuel per year ( 2022 ). Company drivers don't usually have this problem since they have discounted fuel cards. (You can get fuel cards with Cota Systems , too). To learn more, check out our post on the best fuel cards for truckers.

Legally Bypass Inspection Sites

Did we mention that time is money? Another way to save time is with Drivewyze , an in-cab app for driver devices that provides inspection bypass opportunities at 884 weigh stations across the states. When bypass isn't allowed, they have an e-inspection system that speeds up the process and avoids long lines. It sounds too good to be true, but it's 100% legal and works 89% of the time. Prepass is another company that offers this service.

Weigh station stops can take anywhere from 30 minutes to a few hours if lines are long or they find something wrong with your truck. That 30-minute stop could have earned you $15 (at $0.60/mile for 25 miles). Doing so every day could cost you $300/month, and that's IF the stops only take 30 minutes!

Most drivers use a combination of navigation apps. Hammer and Google Maps are popular choices. Systems made specifically for truckers won't take you down prohibited roads - that's why Google Maps alone might not cut it.

Health Apps

Recent studies found that workers who take care of their mental health average 9.3 fewer sick days per year than workers who don't. The life expectancy of truck drivers is 61 years , partly due to their unhealthy lifestyle and work-related stress. Your health is just as important as any CDL pre-trip list. Obesity is one of the most prevalent health issues in the trucking industry for long-haul drivers. These healthy habits can save you down the line:

• Skip the fast food, sugary snacks, and sodas.
• Find a way to manage your stress. Talking to a friend while you drive or finding a podcast that you enjoy are two common solutions.
• Exercise during home days focusing on your back.
• Switch up your stimulants. Instead of Redbull every day, try green tea, coffee, or Yerba Mate a few days per week.

Try out some apps like MyFitnessPal for weight loss and nutrient tracking or Luminosity for mental health support.

OTR drivers can take advantage of toll services like Prepass (which also serves as a weigh station bypass) and Best Pass , a prepaid transponder system. If a toll company isn't covered, it's best to just use cash and keep your receipt. A few tips:

• Take a second to review toll prices on your trip. Any tolls should be factored in when dispatch discusses rates, especially in cities.
• Find and join any toll discount program you can find (take the New York toll reimbursement program, for example)
• Best Pass offers cash toll discounts, but you should verify that the transponder rate wouldn't have been the same (and much faster).

How to Remember Pre Trip Inspection CDL Checklist

Start with our printable CDL pre trip inspection cheat sheet and repeat, repeat, repeat. Use the same checklist every time so your brain can get into that rhythm. Remember the acronyms:

BBC: Bent, broken, or cracked

ABC: Abrasions, bruises, cuts

PFL: Peak for leaks

3 L's: Lights, leaks, leans

Understanding the mechanics of the truck and how everything works together will help your brain form stronger connections and remember more. Try explaining the process to your wife, kids, or friends (even if they won't remember) so you can spot areas you need to study the CDL pre trip inspection PDF more.

What is the item most commonly overlooked during a pre trip inspection?

A few items on the CDL pre trip inspection checklist trip up new drivers most often:

• Chocks: During your CDL class a pre trip inspection, you'll have the vehicle on and off, and be testing various brake systems. Chocks prevent the truck from moving around while you're underneath and walking around.
• Seatbelts: It's often the last thing on a new driver's mind on the long list of items to inspect. But, your life depends on it.
• Emergency Kit: Especially if you drive a shared truck, you don't know if the previous driver used up anything in the kit. Just because you see the kit doesn't mean everything is present and functional.
• Reflectors: Reflectors help other vehicles see you at night. Because there are so many, drivers rush through this check or give them a quick glance. These are another "gateway violation" that can get you pulled over and given a roadside inspection.
• Wheel Lug Nuts: Loose wheel fasteners could have your tires speeding down the freeway toward other cars and trucks. Double-check that all lug nuts are fastened and free of rust.
• Personal Health: Remember the figures we mentioned about truck driver life expectancy. Put your health first, and don't drive if you feel sick and feverish.

This is all about the safety of you and others. Keep your pre trip inspection Class A cheat sheet with you and go through the same, thorough motions every time.

CDL Class B Pre Trip Inspection

The CDL Class B pre trip inspection follows virtually the same guidelines as Class A, but they differ in terms of vehicle type. 

Class B includes buses, straight trucks, and smaller commercial vehicles that are typically not designed to tow additional trailers. Items like the 5th wheel and coupling mechanisms are obviously left off. Drivers have to check passenger doors, wheelchair lifts, handrails, emergency exits, and seating for passenger safety.

New Truck Pre-Inspection Checklist Addition

Non owner-operators who are regularly assigned new trucks can't take for granted that everything was left as you might have left it. Add these to your pre-inspection checklist:

• Cab card & book: permits, registration, IFTA paperwork, and cab cards are present and up-to-date
• IFTA Sticker: current year is displayed on both sides of the truck
• Elog Device: present and functional
• Permits: in the cab card book and up to date
• License Plate: front and back plates match
• Medical Card: med card and CDL are on your person or in the truck
• Paper Logbook: backup if E-log stops working
• Inspection sticker: stuck to the side of the truck and up-to-date
• FMCSA Safety Book: within arms reach of the driver's seat

Additional Supplies: load securing equipment, extra coolant and oil, cable cutters, hammer and wrench, hard hat, and steel-toed boots, and any wisdom you've gained from recent semi truck shows for the latest in safety and efficiency enhancements.

Final Notes on Completing Your CDL Pre-Trip Inspection Checklist

So, you're armed with the ultimate CDL pre trip inspection checklist that will help you pass your exam and save on vehicle maintenance. Your truck is your money maker; our goal for this guide is to give drivers the tools to protect their biggest asset and keep the most money in their pockets as they can. That includes showing you the best truck driver accessories and the best trucking GPS , so you'll be set for the long-haul.

Learn more about how to earn more money and truck driver pay in our blog . Here's another link to the pre trip inspection Class A PDF . Good luck!

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FREE Kentucky CDL Pre-Trip Inspection Practice Test 2024 | KY

Do you think that you can pass the CDL pre-trip exam on the first try? Want to increase your chances of walking away from the DMV without having to re-register for the test? Try our Free Kentucky CDL Pre-Trip Inspection Practice Test to improve your knowledge and see what types of questions will be asked on the real exam. We ask 30 questions about inspecting your rig, trailer, and cargo to ensure you firmly grasp the concepts. We used the official Kentucky CDL Handbook to ensure that our information is relevant to you and your exam! If you can score an 80% or above, you will pass the test and have a powerful study tool in your possession.

Re-taking the pre-trip inspection exam costs both time and money. If you are serious about passing the exam on the first try, take our Free Kentucky CDL Pre-Inspection Practice Test today!

Kentucky CDL Pre-Trip Inspection Overview:

Get the latest (2024) official KY CDL Manual.

Select Another KY CDL Practice Test

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• KY CDL Pre Trip Inspection Test 1 (you are here)
• General Knowledge Test Simulator

• KY CDL Pretrip Videos

FREE 2024 Kentucky (KY) Pretrip

2024 ky pretrip.

Based on the 2024 KY CDL Driver's Manual

More kentucky cdl practice test: ( indicates current test), general knowledge 1, general knowledge 2, general knowledge 3, general knowledge 4, general knowledge 5, general knowledge 6, general knowledge 7, general knowledge 8, school bus 1, school bus 2, school bus 3, school bus 4, passenger vehicles 1, passenger vehicles 2, passenger vehicles 3, passenger vehicles 4, air brakes 1, air brakes 2, air brakes 3, air brakes 4, combination vehicles 1, combination vehicles 2, combination vehicles 3, combination vehicles 4, combination vehicles 5, double/triple trailers 1, double/triple trailers 2, double/triple trailers 3, tanker vehicles 1, tanker vehicles 2, tanker vehicles 3, pre-trip inspection 1, pre-trip inspection 2, pre-trip inspection 3, kentucky free pretrip videos, engine compartment pretrip inspection, inside cab pretrip inspection, rear of tractor pretrip inspection, exterior light pretrip inspection, complete trailer pretrip inspection.

Get started on your FREE 2024 KY KSP CDL Practice Tests now!

Welcome users from the bluegrass state, the kentucky ksp tests below we designed with the 2024 kentucky cdl manual to get you ready to pass the cdl exams. these tests include general knowledge, air brakes, combination, doubles & triples, tanker, hazardous material, passenger, and school bus. we have also created pre trip practice tests to get you stated on the pre trip inspection exam that follows passing your written exams., we have three options to help you on your path. our cdl practice tests offer immediate feedback showing you the question, your answer, the correct answer, and an explanation. we also have a cdl quick review which take the form of flashcards, and the cdl exam simulator that will give you chance at a real testing environment., general knowledge - more information the general knowledge test is the first of several tests that you will have to complete in order to get your cdl. the questions cover general information about commercial vehicles, driving, and vehicle inspections. the test has a total of 50 questions, and requires at least 40 correct answers to pass., general knowledge practice test 1, general knowledge practice test 2, general knowledge practice test 3, general knowledge practice test 4, general knowledge practice test 5, general knowledge practice test 6, general knowledge practice test 7, general knowledge practice test 8, air brakes - more information you must have an air brake endorsement on your driver's license to drive a vehicle equipped with an air brake system. this test will test your knowledge of the function, parts, and braking distance of air brakes. the test will consist of 25 questions, and at least 20 correct answers are needed to pass., air brakes practice test 1, air brakes practice test 2, air brakes practice test 3, air brakes practice test 4, combination - more information the combination endorsement allows you to drive a vehicle with a power unit and one trailer. this test will cover the "ins and outs" of operating articulated vehicles. the exam consists of 25 questions, and requires at least 20 correct to pass., combination practice test 1, combination practice test 2, combination practice test 3, combination practice test 4, combination practice test 5, hazardous material - more information the hazardous material endorsement allows the driver to operate a vehicle containing items such as poisons, explosives, flammables, etc. you will also have to pass the tsa hazardous material threat assessment to get this endorsement. there are 30 questions, 24 correct required to pass., hazardous material practice test 1, hazardous material practice test 2, hazardous material practice test 3, hazardous material practice test 4, tanker - more information the tanker endorsement allows the driver to operate a vehicle weighing more than 26,000 pounds designed to transport any liquid or gaseous material within a tank that is permanently or temporarily attached to the vehicle. there are 20 questions, 16 correct required to pass., tanker practice test 1, tanker practice test 2, tanker practice test 3, doubles / triples - more information the doubles/triples endorsement is required for drivers to pull 2 trailers (doubles) or 3 trailers (triples) connected to a single power unit. there are 20 questions on this test, and 16 correct answers are required to pass., doubles / triples practice test 1, doubles / triples practice test 2, doubles / triples practice test 3, passenger - more information bus drivers must have a commercial driver's license with a passenger endorsement in order to operate a vehicle which seats 16 or more, including the driver. there are 20 questions on this test, and 16 correct answers are required to pass., passenger practice test 1, passenger practice test 2, passenger practice test 3, passenger practice test 4, school bus - more information school bus endorsement is required for any driver who operates a school bus. after the permit tests the training can be only completed by a local school district. there are 20 questions on this test, and 16 correct answers are required to pass., school bus practice test 1, school bus practice test 2, school bus practice test 3, school bus practice test 4, pre trip - more information the pre-trip exam is an oral exam where you are expected to check the vehicle parts to insure it is safe for road use. the amount of parts you need to check increase with the size of the vehicle, and by type of vehicle., pre trip practice test 1, pre trip practice test 2, pre trip practice test 3, free pre-trip videos - more information the pre-trip exam is an oral exam where you are expected to check the vehicle parts to insure it is safe for road use. the amount of parts you need to check increase with the size of the vehicle, and by type of vehicle., engine compartment pretrip video, inside cab pretrip video, rear of tractor pretrip video, exterior light pretrip video, complete trailer pretrip video.

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The Complete Pre-Trip Inspection Checklist

Due to heavy memorization, the pre-trip inspection is one of the hardest aspects of the CDL test. Also called the “Vehicle Inspection Test,” the pre-trip is one of the tests that trucking students fail the most.

With this pre-trip inspection checklist, we tell you everything you need to know and what you need to check for.   

Engine Compartment – What to Check For:

When checking the engine compartment, you always want to make sure the following components are properly mounted and secured. You should also make sure they are not cracked, bent, or broken. The items you need to check for include:

Belt-Driven Alternator

All of the wires are connected. The belt is not cracked or frayed, and the free play on the belt is between ½ to ¾ of an inch.

Belt-Driven Water Pump

The free play on the belt is between ½ to ¾ of an inch, and all the hoses running to and from the water pump are tightly clamped. Ensure nothing is leaking.

Brake Chamber

The brake chamber is not leaking air.

The brake drum is properly mounted and secure.

The brake hose is rubber; it is not cracked and is not leaking air.

Brake Lining

Check for oil or debris on the lining. There should be at least ¼ of an inch of friction material.

Caste Nuts and Cotter Pins

All three caste nuts and cotter pins are present.

Coolant Reservoir

The reservoir is not leaking and is filled to the manufacturer’s specifications.

 The drag link is properly mounted and secure, and not cracked, bent or broken.

Gear Box and Hoses

The gear box and hoses have no abrasions, bulges or cuts, and are not leaking.

Gear-Driven Air Compressor

The air compressor is properly mounted and does not leak.

Gear-Driven Power Steering Pump

The steering pump is properly mounted and not leaking.

General Hoses (Passenger and Driver’s Side)

The hoses are secure at both ends and are not leaking. There are no abrasions, bulges, or cuts.

The hub seal (or axle seal) is leaking and is filled to the manufacturer’s specifications.

Leaf Springs

None of the leaf springs have shifted or are bent or broken.

There are no signs of leaks under the truck.

There are no lug nuts missing. There are no rust trails, powder residue, or cracks around the bolt holes.

The oil level is filled to the manufacturer’s specifications.

The pitman arm is properly mounted and secure. It is not cracked, bent, or broken.

Power Steering Fluid Reservoir

The power steering reservoir is not leaking and is filled to the manufacturer’s specifications.

The rim does not have any unauthorized welds.

Shock Absorber

The shock absorber is not leaking. If it is leaking, the leak will be at the point where the top and bottom portion of the shock meet.

Slack Adjuster and Push Rod

With the brakes released and pulled by hand, the push rod does not move more than one inch.

Spring Hanger

The spring hanger is properly mounted and secure.

Steering Column

The steering column is properly mounted and secure. It is not cracked, bent, or broken.

There are no abrasions, bulges, or cuts on the tread or sidewalls. Tread depth should have a depth no less than 4/32 of an inch. Tires are properly filled to the manufacturer’s specifications. This can be checked with an air gauge.

The tie rod is properly mounted and secure, not cracked, bent, or broken.

Make sure all are accounted for.

Driver Door Fuel Area-What to Check For:

Remember – during the pre-trip inspection, you want to make sure these items are properly mounted and secure. Look for cracks, bends, and breaks.

The actual airbag has no abrasions, bulges, cuts, or leaks. The airbag is not missing mounting bolts.

The axle seal is not leaking and is filled to the manufacturer’s specifications.

The brake drum is secured properly and has no cracks, bends or breaks.

Check the brake hose at both ends to make sure it is not leaking air.

There is no oil or debris on the brake lining. There is at least ¼ of an inch of friction material.

Catwalk and Steps

The cat walk and steps are clear of any loose objects.

Door and Hinges

The doors open, close, and latch properly. Door seals should not be worn, torn, or rotten.

Drive Shaft

The drive shaft is not twisted, and the u-joints are free of any debris.

The tread and sidewalls have no abrasions, bulges, or cuts. The tread depth is no less than 2/32 of an inch. Tires are properly filled to the manufacturer’s specifications. This can be checked with an air gauge.

Exhaust System

The exhaust system shows no signs of leaks.

Frame and Cross Members

There are no unauthorized holes or welds. Bundle up the cross members to ensure none are missing.

Fuel is not leaking from the tank, and the cap is on tight.

There are no rust trails, loose bolts, powder residue, or cracks around the bolts.

Mirrors are clean, with no cracks or chips.

The mud flap is secured properly, with no cracks, bends and breaks.

There are no unauthorized welds.

The shock absorber is secure at both ends and not leaking. If it does leak, it is preferable to leak in the middle.

There is proper spacing between the tires and there is nothing stuck.

The spring arm is secure at both ends.

Spring Mount

The spring mount is secure at both ends.

The torque arm is secured properly, with no cracks, bends or breaks.

No u-bolts are missing.

Coupling Area-What to Check For:

Air lines should be secure at both ends with no abrasions, bulges, or cuts. They should not be leaking, dragging, or tangled.

Make sure the apron is properly mounted and secure. Look for cracks, bends, and breaks.

Make sure there is enough space between the tractor mud flap and the trailer landing gear, so that they don’t hit each other when making a turn.

Electric Line

The electric lines are secure at both ends. There are no abrasions, bulges, cuts, or exposed wires.

There is no space between the apron and the skid plate.

The seals are in good condition with no cracks, signs of rotting, or leaking air.

The king pin is properly mounted and secure, without cracks, bends and breaks.

Locking Jaws

Physically check that the locking jaws are fully locked around the king pin.

Mounting Bolts

No mounting bolts are missing.

The platform is properly mounted and secure, without cracks, bends and breaks.

Release Arm

The release arm is in the fully locked position.

The skid plate is properly lubed.

Sliding Fifth Wheel Locking Pin

The pin is in the fully locked position.

Trailer- What to Check For :

The airbag has no abrasions, bulges, cuts or leaks, not missing any mounting bolts.

The brake chamber is properly mounted and does not leak air.

The brake hose is secure at both ends with no abrasions, bulges, cuts, or leaks.

No oil or debris on the brake lining and at least ¼ of an inch of friction material.

No missing cross members.

Header Board

The header board does not have any holes or missing rivets.

Landing Gear

The landing gear is fully raised and the cradle handle secure.

No rust trails, powder residue, or cracks around the bolt holes.

The rims do not have any unauthorized welds.

Rear Door and Hinges

The rear door opens, closes, and latches properly. Door seals are not worn, torn, or dry rotten.

The shock absorber is secure at both ends with no leaks.

When the brakes are released and pulled by hand, the push rod does not move more than one inch.

Tandem Frame and Release

Release handle and locking pins are in the fully locked position.

Trailer Tire

There are no abrasions, bulges, or cuts to the tread or sidewalls. Tread depth is no less than 2/32 of an inch. The tire is properly filled to manufacturer’s specifications and checked with an air gauge.

Light Check

There are five locations where you must check your lights. These include:

• Front of the truck
• Both sides of the truck
• Rear of the truck
• Both sides of the trailer
• Rear of the trailer

The five functions are:

• Left turn signal
• Right turn signal
• Four way flashers
• High/low beams
• Brake lights

Inspection and Brake Tests-What to Check For: In-Cab

The last section is In-Cab Inspection and Brake Tests. For the In-Cab Inspection you once again want to make sure all of the following components are properly mounted and secure. As well as the following:

Air Brake Test

There are three stages to an air brake test:

• Applied Pressure Test – When doing the Applied Pressure Test, you want to build the air pressure to governor cut out. Put the truck in the lowest gear, turn the engine off and immediately turn it back on. Push in the tractor and trailer valves which then release the parking brakes. Push and hold the brake pedal, allowing the gauges to stabilize. When the gauges have stabilized, announce the Primary and Secondary PSI. Listen for air leaks while doing this.
• Warning Light and Buzzer – Pump down on the brake pedal until the warning light and buzzer comes on. This is typically at or before 60 PSI.
• Tractor/Trailer Protection Valve Pop Out – Pump down on the brake pedal until the tractor and trailer protection valves pop out, this will be between 20 and 40 PSI.

Air Pressure Gauges

The air pressure gauges build to governor cut out.

Emergency Equipment

Truck has a fire extinguisher, three red reflective triangles, and spare electrical fuses.

Heater and Defroster

Demonstrate both the heater and defroster are working properly.

Horns (Air Horn and City Horn)

Blow both horns to make sure they are working.

Lighting Indicators

Check the left turn, right turn, four way flashers and high beams; also point these out on the dashboard.

With the transmission in neutral, fully depress the clutch. Turn the key on, check the ABS light, announce when it comes on and off, and start the engine.

The seat belt is not ripped or frayed and adjusts and latches properly.

Oil Pressure Gauge

The engine oil pressure gauge should rise to normal operating range.

Parking Brake

• Trailer Parking Brakes – Set the trailer brake, release the tractor brake, and tug lightly on the trailer.
• Tractor Parking Brakes – Set the tractor brake, release the trailer brake, and tug lightly on the trailer.

Service Brake Check

Release both the tractor and trailer brakes. Drive at idle speed. Apply the service brake to make sure you come to a complete stop and that it doesn’t pull to the left or right when applying the brakes.

The voltmeter is charging between 13 and 14 volts.

Water Temperature Gauge

The water temperature gauge rises to normal operating range.

Windshield and Mirrors

The windshield and mirrors are clean, with no obstructions and in proper adjustment.

Windshield Wipers and Washers

Demonstrate the wipers and washers are working properly by spraying the windshield.

This is a really nice complete list, very useful.

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Kentucky CDL Manual

Get a head start on your truck driver training by studying the Kentucky CDL license manual. It contains everything you need to know to confidently pass the written CDL exam and get a truck driving job in Kentucky. Find a Kentucky CDL license training  program near you.

Open Kentucky CDL Manual .PDF  – you can then print if you want to.

Use the program search application to connect with a CDL training school in Kentucky.

The Kentucky CDL Manual is conveniently divided into several different sections including driving safely, pre-trip vehicle inspection and basic vehicle control. Simple images and diagrams make truck concepts and procedures even easier to understand.

More Study:

• Kentucky CDL Practice Test
• Pre Trip Inspection Checklist Guide

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KY CDL Pre-Trip Inspection Practice Test 2024

• Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
• Based on 2024 KY commercial driver's license manual
• Triple-checked for accuracy
• Updated for June 2024

About this test

Do you think you’re prepared to take the KY CDL Pre-Trip Inspection Test? If you are not sure if you’ll pass, it is a mistake to go to the DMV and sit for the exam. You could fail it, and that will make it hard for you to maintain your job. It is much better to prepare ahead of time by taking this CDL Pre-Trip Inspection Practice Test. It will make it much easier for you to go into the KY DMV and pass with flying colors.

Learn from Your Wrong Answers

You might not get every answer correct the first time, and that is all right. You can learn from the answers that you miss. When you miss a question, the test will tell you. It will highlight the right answer so you can make a note of it. This will let you know what you need to review. For instance, you might not know anything about checking the oil level, so you might miss a question about that subject. That will let you know that you need to go back through your KY study materials and review that section before you go to the DMV.

Prepare for Test Day

When you finally get all of the practice test questions right, you’ll know that you are ready for test day. At that point, don’t put it off. There is no sense in putting it off any longer. You’re now ready to go to the DMV. You should have a lot of confidence now since you have practiced here. The tests are very similar, so there is no reason to think that you won’t do the same thing on the official test.

So, now it’s time to buckle down and get ready for big day. Begin with the practice test, paying attention to each question that you encounter. After you make it through the practice test, you’ll finally be ready to go to the DMV and take the real thing.

Thoroughly prepare for your CDL Pre-Trip Inspection with our detailed guide, offering step-by-step procedures and essential tips at our Pre-Trip Inspection section .

What to expect on the actual KY CDL exam

correct answers to pass

passing score

Helpful links

KY DMV website

Official Kentucky CDL manual (2024)

More KY CDL Pre-Trip Inspection Exam Resources

• KY CDL Pre-Trip Inspection Test
• KY CDL Pre-Trip Inspection Test 2
• KY CDL Pre-Trip Inspection Test 3
• KY CDL Pre-Trip Inspection Test 4
• KY CDL Pre-Trip Inspection Marathon
• KY CDL Pre-Trip Inspection Exam Simulator

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Complete pre-trip inspection checklist for truck drivers

By The Schneider Guy

Estimated reading time: 4 minutes  

As a truck driver, performing a CDL pre-trip inspection is one of the most common and repeated tasks you will complete. Pre-trip inspections help truck drivers ensure their tractor and trailer are safe to operat e before hitting the road.  

Keep reading to learn what a p re -trip inspection is and what should be on a p re -trip inspection checklist .      

What is a pre-trip inspection?  

A pre-trip inspection includes checking over the tractor and trailer a truck driver will be operating . A pre-trip should be completed before the operation of a vehicle :  

• At the beginning of a driver’s shift.
• Any time a new trailer is picked up.
• After a 10-hour break.

A thorough inspection usually takes anywhere from 30 minutes to one hour and should be logged as on-duty, not driving (line 4) .

How to complete a CDL pre-trip inspection  

CDL pre-trip inspection checklist   

1. passenger-side engine:   .

• Air filter housing: Secure mounting, cover in place.
• Windshield washer fluid reservoir: No leaks, proper fluid level.
• Turbocharger: No oil or exhaust leaks.
• Engine air ductwork: No cuts, clamps secured.
• Alternator: Mounting secured, no broken or loose wire.
• Accessory drive belt: Not cracked or frayed.
• Air conditioner compressor: Secure m ounting .

2. Front brakes (covers all five brake components):   

• Brake drum: No cracks.
• Brake lining: No cracks or damage.
• Slack adjuster: Proper angle to the brake chamber, clevis and cotter pin intact.
• Brake air line: No bulges or cuts, fitting tight .
• Brake chamber: Mounting bolts secured, band clamp secured.

3. Front wheel:   

• Tire: ABCs (abrasions, bulges, cuts), pressure = 120 PSI, tread depth = 4/32 min ( DOT ) .
• Wheel: Not cracked or bent.
• Hub oil: Not leaking, at proper level – if it’s a sealed unit, can’t check level.
• Oil seal (outer): Not leaking.
• Valve cap: Not missing.
• Lug nuts: None missing, no streaks or shiny areas, none loose.

4. Driver side of engine:   

• Radiator brace: No cracks or missing bolts.
• Radiator: Not leaking, secure mounting.
• Water pump: No cracks, not loose or leaking.
• Fuel water separator/filter: Not leaking, secure mounting.
• Pitman arm/drag link: Not cracked, castle nut secured with cotter pin.
• Steering gear box: Secure to frame, not leaking.
• Power steering reservoir: Secure mounting , no leaks, proper level.
• Dipstick: Right level, secured after check.
• Steering shaft: Secure, not loose or damaged.
• Fuel pump: No cracks, not loose or damaged.
• Oil filler cap: Secure, no cracks.
• Engine coolant reservoir: No leaks, proper fluid level.

5. Steer axle suspension:   

• U-bolts: No cracks, no loose or missing nuts.
• Leak spring: No cracks, not loose or shifting.
• Tie rod: Secured with castle nuts and cotter pins.
• Shock absorber: Secure mounting, not leaking oil.
• Axle: Not cracked.

6. Rear suspension:   

• Spring mount: No cracks, secure mounting.
• Tire: ABCs (abrasions, bulges, cuts), pressure = 110 PSI, tread depth = 2/32 min ( DOT ) .
• Airbag (bellows): Fully inflated, secure mounting, not ruptured.

7. Side of cab:   

• Mirrors: Secure m ounting , no broken glass.
• Doors: No damage, glass not broken, hinges secured, opens and closes well.
• Lights and turn signals: Working, not cracked.
• Steps: Mounted, secured to skirting.
• Battery box: Secure m ounting , cover latched.
• DEF cap: Cap secured.
• Fuel cap/tank: Gasket in place, vent in place, chain secures the cap to the tank.
• Side skirting: No damage, panels secure.
• Side box: Secured, safety triangles present.
• Side of sleeper berth: No body damage.
• Sleeper berth window: No cracks.

8. Rear of cab:   

• Electrical cord: No bare wire, no corrosion, check the plug at the end of the cord.
• Air line: Not tangled or worn, rubber grommets not worn, fittings tight.
• Cab shock absorber: Secure mounting, not leaking oil.
• Cab airbag (bellows): Not ruptured, securely mounted.

9. Driveshaft/rear frame:   

• Driveshaft: Not cracked.
• Universal joint: Not cracked, not missing bolts, no shiny areas.
• Differential: Not leaking oil.
• Frame: Straight, no non-factory welds.

10. Fifth wheel area:   

• Pivot pin: Keeper pin and cotter key intact.
• Slider lock pins: Fully engaged.
• Release arm: Not bent.
• Slider rail: No broken welds or missing bolts.
• Slider stop blocks: Welds not broken, not missing bolts.
• 5th wheel platform: Well-greased, tilted down.

11. Front of trailer:   

• Top rail: No cracks or collision damage.
• Clearance lights: Not broken, working properly.
• Registration: Not missing, readable.
• Document box: Not missing or loose.
• Air line /glad hands: No bulges or cuts in air lines, rubber grommets not damaged on glad hands.
• Electric hook up: No broken pins, cover intact.
• PM sticker: Current, legible.
• Height sticker: Legible, legal for route.
• Placard holder: Not broken or missing rivets.
• Tracking device: No cracks or collision damage.

12. Side of trailer:   

• Top rail: Not cracked, no collision damage.
• Clearance light: Not broken, operational.
• Bottom light: Not cracked, no collision damage, no missing bolts.
• Landing gear: Legs straight, no broken welds in bracing, sand pads secured and clean handle in cradle.
• Reflector tape: Clean.
• Side panels: No holes or cuts, no missing rivets.

13. Rear of trailer:   

• Latches: Secured, not damaged.
• Lights: Not broken or missing, operational.
• Splash guard: Brackets and guard secured.
• License plate: Secure and clean, light is working.
• Bumper: Not damaged, no broken welds.
• Door hooks: Not loose, no missing bolts.
• Hinges: Not cracked, no missing bolts on both sides.
• Door seals: No separation, no rubber tubing sticking out.

14. Trailer suspension:   

• Air line: No bulges or cuts, fittings are tight and not rubbing.
• Axle: Not bent or broken.
• Clevis pin/cotter key: Not missing.
• Slack adjuster: Proper angle, clevis pin and cotter pin intact.
• Brake linings: Minimum of ¼ inch thick, not cracked.
• Brake drum: Not cracked.
• Tire: (ABCs), tread depth = 2/32 , air pressure = 110 PSI.
• Spring: Not broken, not shifted.
• Spring mount: No broken welds.
• U bolts: Not loose, not cracked.
• Torque rod: Secure mounting, bushings intact.
• Spring brake chamber: Secure m ounting , band clamp secure.

15. Gauges/inside the truck:   

• Fuel: Matches visual when looking in the tank.
• Def level: Maintain a minimum of one light bar.
• Oil pressure: 25-50 PSI.
• Speedometer: 0-60 MPH.
• Air pressure: 90-120 PSI.

Please note that the list above is just an example. It is important to remember the type of driver you are, the company you work for and the type of truck you drive can impact your CDL pre-trip inspection . Be sure to consult your company guidelines or speak with your leader for more information on your post-trip inspection requirements.  

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What is a Pre-Trip Inspection Checklist for Class A CDL

October 22, 2021

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Key Takeaways

Drivers who have a class A commercial driver’s license (CDL) usually have to complete a pre-trip inspection on their non-passenger commercial vehicles. Having a pre-trip inspection checklist handy helps driver’s know what to expect when they pass their CDL examination and what parts of their vehicle the will need to inspect before heading out on the road.

What is a CDL pre-trip inspection checklist?

A pre-trip inspection checklist helps truck drivers remember all the major systems and parts to inspect before heading out on a route. Knowing how to complete a pre-trip vehicle inspection is an important part of trucking. 

Pre-trip inspections for class A licensees

The class A commercial driver’s license (CDL) typically covers non-passenger commercial vehicles . These might include tractor-trailers, tankers, livestock carriers, flatbeds, and more.

The Department of Transportation (DOT) requires drivers to perform a pre-trip inspection before driving a commercial vehicle. Similar to Class B CDL holders, the actual daily pre-trip inspection takes about 15 minutes or less. Typically, the inspection includes the following, with some employers making their own variations.

Brakes and air system

Steering mechanism

Lights and reflectors

Tires, wheels, and rims

Windshield wipers

Rearview mirrors

Emergency equipment

Drivers complete a driver vehicle inspection report (DVIR) recording the completed inspection.

Class A CDL pre-trip inspection checklist

When getting a CDL, drivers need to pass a  pre-trip inspection test. It’s more intensive than the inspection drivers perform daily. This pre-trip inspection checklist for a Class A CDL gives drivers an overview of performing an inspection. Check your state’s CDL manual for a complete list of inspection requirements.

Click here for a Class B pre-trip inspection list.

Engine compartment

Fluids - coolant, oil, and power steering : Reservoirs and tanks should not leak. Check hoses for splits or cuts and that they are securely mounted on both ends. Verify proper fluid levels with a dipstick.

Belts - alternator, pumps, compressor : All belts should be securely mounted without cracks or frays. Belt should have no more than 1/2" to 3/4" of play. 

Hoses (passenger and driver’s sides) : All hoses, including power steering and coolant hose, should be secured on both ends. They should not have splits, cuts, or leaks.

Air compressor: May be difficult to see. Ensure it’s securely mounted, not broken, cracked or leaking.

Alternator : All wires are properly connected.

Water pump : All hoses are properly connected and not leaking. 

Front of tractor/truck

Steering gearbox and hoses : No damage or leaks. Hose should be secured on both ends. They should not have splits, cuts, or leaks.

Steering shaft/steering column : Not bent or broken.

Pitman arm : All caste nuts and cotter pins are present and tight.

Drag link : Rubber is not split and properly greased.

Upper and lower control arms and tie rod : Tie rod should be secure, not cracked or bent.

Front suspension

Spring mounts/spring hanger : Not cracked or broken.

Leaf springs : None are cracked, broken, or shifted.

U-bolts : All accounted for.

Shock absorber : No visible leaks. Leaks will show at the point where the top and bottom of the shock meet. Rubber is not split or shows signs of dry rot.

Airbag : Check rubber for abrasions, cuts or audible leaks plus any missing mounting bolts.

Driver door and fuel area

Mirrors and bracket: Hardware attached properly. Mirror should be clean and not broken.

Door and hinges : Demonstrate door operations, latching properly, hinges intact. Door seals should not be torn or rotten. 

Steps : Mounted properly and can hold weight.

Fuel tank: Not leaking; cap is tight with seal intact.

Rear of tractor/truck

Drive shaft : Not twisted, U-joints not broken and free of debris.

Exhaust system: Not loose, no sign of leaks (exterior soot).

Frame : Nothing broken or unauthorized welds.

Catwalk and steps : Properly mounted and clear of loose objects.

Mudflap : Secured, not missing or broken. At the right height.

Coupling area

Air connector: Secure on both ends, no abrasions, cuts, or audible leaks. Connectors should not drag or tangle.

Electric lines : Secure on both ends, no abrasions or cuts. Safety latches in place. Lines should not drag on the catwalk or tangle.

Glad hands : Seals should be in good condition with no cracks, signs of rotting, or leaking air.

Fifth wheel platform : Secure to frame, not cracked, bent or broken. No unauthorized or illegal welds.

Mounting bolts : No missing bolts and mounted tight.

Skid plate: Properly greased.

Release arm : Secure in fully locked position.

King pin : Mounted and secure. No cracks, bends, and breaks.

Locking jaw : Fully locked around the king pin. 

Apron : Mounted and secure. No cracks, bends, and breaks.

Sliding 5th wheel locking pins : Pin must be in the fully locked position.

Brake system (both tractor and trailer)

Brake hose : Securely mounted on both ends. No splits, cuts, and not audibly leaking air.

Brake chamber : Not audibly leaking air.

Slack adjuster and push rod : When brakes are released and pulled by hand, the push rod should have no more than 1” of play. It should stay at a 90° angle to the brake chamber.

Brake drum :  No bluing from excessive heat.

Brake pads/brake lining : Check for oil and debris on the lining. Minimum brake pad thickness is ¼.” 

Wheel system (both tractor and trailer)

Wheel rims : No unauthorized or illegal welds.

Steer tires : Look for cuts, bulges, and abrasions on the tread and sidewalls. Tread depth should be a minimum of 4/32”. Tread should be evenly worn. Check inflation levels on tires with an air gauge, filled to manufacturer’s specifications.

Drive tires : Look for cuts, bulges, and abrasions on the tread and sidewalls. Tread depth should be a minimum of 2/32”. Tread should be evenly worn. Check inflation levels on tires with an air gauge, filled to manufacturer’s specifications.

Valve stem . Properly secured, metal cap in place. Not audibly leaking air.

Lug nuts : All accounted for. Check for rust or cracks.

Hub seal/axle seal : Should not be loose. No visible leaks.

Spacing : If equipped with duals, there must be proper spacing between the tires.

Frame and cross members : Secure, not cracked, bent or broken and none missing.

Header board : Secure and not excessively damaged. No holes or missing rivets. 

Landing gear : Must be fully raised and the cradle handle secured. Not cracked, bent or broken.

Doors and hinges: Secured and should open, close and latch properly. Door seals have no separation, no rubber tubing sticking out.

Tandem release :  Release handle and locking pins should be fully locked.

Trailers airbag : Check rubber for abrasions, cuts or audible leaks, plus any missing mounting bolts.

Trailer spring mounts/spring hanger : Not cracked or broken

Trailer leaf springs : None are cracked, broken, or shifted.

Trailer u-bolts : All accounted for.

Trailer shock absorber : No visible leaks. Leaks will show at the point where the top and bottom of the shock meet. Rubber is not split or shows signs of dry rot.

Torque arm/radius rod : Secure mounting, bushings intact.

Check all lights on the front, both sides of tractor, truck rear, both sides of trailer, and trailer rear. Turn on to ensure lights and reflectors are working.

Running lights : Walk around the truck and trailer to examine all.

High beams/low beams: Walk around the truck and trailer to examine all.

Turn signals : Signal both right turn and left turn. Walk around the truck and trailer to examine all.

Hazards/4-way flashers : Walk around the truck and trailer to examine all.

Brake lights : Ask the examiner to watch brake lights. Confirm they worked using the side mirror. 

License plate lights : Walk around the truck and trailer to examine all.

Reflector tapes : Clean and not worn. Walk around the truck and trailer to examine all.

In-cab inspection and air brake test

Seat belt: No rips or frays and should adjust and latch properly.

Lighting indicators : See lights and reflectors section

Oil pressure indicator : Demonstrate normal operating range.

Water temperature gauge : Demonstrate normal operating range.

Air pressure gauges : Build to governor cut out.

Ammeter/voltmeter : Charging between 13 and 14 volts.

Mirrors : Secure, not cracked or broken. No obstructions and properly adjusted.

Windshield : No more than a 1” crack is permitted. Clean and free of debris.

Windshield wipers and washers: Turn on to show they are working properly.

Horns (city and air) : Show they are working properly.

Heater/defroster : Turn on to show they are working properly.

Safety/emergency equipment : Must have a fire extinguisher, three red reflective triangles and spare electrical fuses. Extinguisher must be fully charged and secured.

Steering wheel : Secured to steering column.

Foot pedals : Free of grease and debris. No obstructions. 

Hydraulic brake check : Pump the brake pedal several times. Apply pressure to the pedal and hold for five seconds. The pedal should not move.

Air brake check : Air brake devices vary. Drivers must test three components of the air brake check correctly: applied pressure, warning lights and buzzers, and valve pop-outs.

Parking brake: 

Trailer parking brake : Set the trailer brake, release the tractor brake. Put truck in low gear and tug. 

Tractor parking brake : Set the tractor brake, release the trailer brake. Put truck in low gear and tug.

Service brake : Release both the tractor and trailer brakes. Drive 3 – 5 mph. Apply the service brake and come to a complete stop. Ensure steering does not pull to the left or right when applying the brakes.

Watch the video below to see how All Aboard America uses the Samsara Driver App to become nearly 100% paperless and save 30 minutes per trip, totaling 500 hours saved weekly.

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Complete CDL Pre-Trip Inspection Checklists for Class A and Class B Drivers

Your fleet is loaded, and the fuel tanks are full – you’re ready to move. Or are you?

If you haven’t completed a pre-trip inspection checklist, you might not be.

The Department of Transportation (DOT) requires all drivers holding a commercial driver’s license (CDL) to complete a pre-trip DOT inspection checklist before operating a commercial vehicle. Usually taking about 10-15 minutes, this inspection checks essential systems such as brakes and steering, as well as tires, mirrors, and emergency equipment.

So how can drivers know what to check? In this article, we’ll run down the DOT requirements for pre-trip inspection checklists, along with key differences between Class A and Class B inspections and even some useful tools that can help make the job easier.

What is a pre-trip inspection checklist?

A pre-trip inspection checklist is a list of items that CDL holders need to review before operating their vehicles. As you may have guessed, this process is known as a pre-trip inspection .

What is a pre-trip inspection?

Pre-trip inspections aren’t just an annoying routine – they’re an important and necessary safety measure that helps ensure that commercial vehicles are up to fleet safety operation standards .

While the scope and contents of a pre-trip inspection checklist vary according to the type of commercial vehicle and its use, you can complete most inspections in about 10-15 minutes. Checklist items generally include assessing the operational condition of anything the driver and vehicle need to operate the vehicle safely . This usually includes things like an air brake check, along with checking lights, tire pressure, couplings, and so on.

Drivers must also record their inspection results in a driver vehicle inspection report (DVIR), which is usually automated (or at least streamlined) in companies with established fleet management tools. Periodic inspection requirements require additional pre-trip inspections every 24 hours of continuous use or whenever the driver changes vehicles.

It may seem like a lot to review, but most of it boils down to common sense. Before you start crawling under the nearest truck, however, you may want to see whether you have to perform a pre-trip inspection in the first place!

Who needs to complete a pre-trip inspection?

Pre-trip inspections are mandatory for both Class A and Class B commercial driver’s license (CDL) holders.

If you’re a CDL holder, you probably already know which Class you fall into. But just in case, here’s a quick refresher on the types and weights of vehicles that different classes of CDL holders can operate.

• The Class A CDL applies to commercial vehicles weighing at least 26,001 pounds that can tow at least 10,000 pounds. This usually encompasses most towing commercial vehicles such as big rigs, tractor-trailers , and flatbeds.
• The Class B CDL applies to commercial vehicles weighing at least 26,001 pounds that can tow no more than 10,000 pounds. This usually encompasses most non-towing commercial vehicles, such as passenger buses, garbage trucks, and delivery trucks.

While there is also a Class C CDL, this usually extends to specialty vehicles not found under either Class A or Class B (such as hazardous waste transport). However, since their detailed inspection procedures are highly specific and beyond the scope of this article, we won’t cover them here.

But what’s involved in Class A and Class B inspections, and how can they differ?

Class A vs. Class B pre-trip inspections

While Class A and Class B vehicles share many of the same detailed inspection procedures (every commercial vehicle has brake lights, after all), each class and vehicle type has its own inspection procedures.

• Class A and Class B commercial vehicles share many common inspection items, such as front and rear suspension, brake lights, minimum brake pad thickness, oil level, etc. These are usually items that apply to any type of road vehicle.
• Class A inspection items are usually those related to towing systems in commercial vehicles, such as the trailer parking brake, coupling areas, etc. These inspection standards usually extend to the trailer, flatbed, or any other object that the truck is towing.
• Class B inspection items are usually those related to non-towing commercial vehicles. As this is a very broad category, some Class B vehicles may not require any additional inspections, while others may have several specific systems to inspect. In the case of the latter, these are usually items specific to the vehicle itself, such as checking for broken seat frames in passenger areas of a bus.

Of course, there’s much more to each pre-trip vehicle inspection than the handful of key differences we’ve listed here. In the next section, we’ll run down the pre-trip inspection process that applies to nearly every commercial vehicle and then detail more class-specific motor vehicle safety inspections.

CDL pre-trip inspection checklist

The standard CDL pre-trip DOT inspection checklist includes everything a commercial motor vehicle needs to navigate the road safely.

These are generally suspension- and engine-related items that would just as well apply to a regular car. As a general rule, a commercial pre-trip inspection test almost always includes the following motor vehicle safety inspections.

Brake system

There’s nothing more important than your vehicle’s air brakes. Note that the following air brake tests apply to both tractor brakes and trailer brakes on Class A commercial vehicles.

• Brake linings and brake pads: Brake pads should be no less than the minimum thickness of one-quarter inch (¼”). Also, be sure to check linings for oil and debris.
• Brake chamber: The brake chamber should be completely sealed with no audible air leaks.
• Air brake hose: No air should leak from the brake hose, and the line should be properly mounted and free of cuts or splits.
• Brake drum: Should not be blue from excessive heat.
• Hand brake: Push rods should have no more than one inch (1”) of play in either direction and stand up 90 degrees when pulled.

Depending on the vehicle, these items are usually checked with a 9-step, 7-step, or 5-step brake test. These tests usually involve pressing the brake pedal, service brake, hand brake, or foot brake under various conditions and seeing whether air pressure recovers to the proper level in time (see your vehicle’s operating guide).

For example, drivers can check for low air pressure by pressing the brake pedal to fan off the pressure. If repeatedly pressing the brake pedal results in a low pressure buzzer or light indicator, the brake system will require repair.

Engine compartment

Engine compartment inspection items include:

• Fluids: The coolant hose, power steering hose, and any tanks or reservoirs should all be securely mounted and have no leaks. Similarly, a dipstick should indicate that all fluid levels (including oil level and coolant level) are at their proper levels.
• Belts: All belts for compressors, pumps, and alternators should have no cracks or frays and give no more than one-half of an inch (½”) of play.
• Air compressor: Should be securely mounted and functional with no cracks or leaks.
• Water pump: Pump hoses must be properly connected with no leaks.
• Alternator: Wires and belts must be properly connected.

Front of vehicle

Front-of-vehicle inspection items usually include steering equipment such as:

• Steering column or steering shaft: The steering column should be straight and unbroken.
• Steering box: The steering gearbox should be intact, and all connected hoses should be securely mounted with no power steering fluid leaks.
• Tie rod and control arms: Both should be straight.
• Drag link: The rubber should be greased and uncracked.
• Pitman arm: All cotter pins and caste nuts are present, secure, and tight.

Front suspension

Front suspension inspection items include springs, spring mounts, shocks, and suspension airbags.

• Spring mounts and spring hangers: Spring mounts should hold spring hangers securely in place with no signs of wear, cracks, or breakage.
• Leaf springs: Should be secured to hangers with no cracks or breakage.
• Shock absorbers: Should have no leaks, splits, or dry rot in the rubber. Leaks are typically located where the top and bottom pieces overlap.
• U-bolts: Should all be securely fastened around the spring and axle.

Rear of vehicle

The rear of tractor or truck inspection items include the following.

• Driveshaft: Should be straight with unbroken U-joints.
• Exhaust: Should be free of rust with no leaks or excessive soot.
• Frame: Structurally sound with no damages or unauthorized repairs/welds.
• Steps: Structurally sound and mounted properly.
• Mud Flaps: Should be clean, unbroken, and secured at the right height.

Wheels and tires

Wheel and tire inspections check for both proper inflation and overall tire condition, specifically tread depth. Note that this also extends to trailers on Class A vehicles.

• Drive and steer tires: Tire tread should be even with a minimum tread depth of 2/32” on drive tires and a minimum tread depth of 4/32” on steering axle tires. Use an air pressure gauge to check inflation levels against manufacturer inflation levels. Treads and sidewalls should be free of cracks, bulges, and abrasions.
• Wheel rims: No unauthorized repairs or illegal welds.
• Hub seal and axle seals: Should show the axle and hub seal intact with no visible leaks or play.
• Dual spacing: Any dual tires must have enough spacing between them.
• Lug bolt holes: All lug bolt holes should have all lug bolts and lug nuts.
• Valve stem: No audible air leaks.

Lights and reflectors

Light and reflector inspections include everything from running lights to DOT tape and 4-way emergency flashers.

• High and low beams: Ensure both are functional on all forward lights.
• Turn signals: Make sure all are functional for both tractor and trailer.
• Brake lights: Make sure all are functional for both tractor and trailer.
• Running lights and license plate lights: Walk around the truck and make sure all are on.
• 4-way emergency flasher function: Walk around the truck to make sure the 4-way flasher rear and front lights are fully operational.
• Reflector tape and DOT tape: All DOT tape and reflector tape should be clean with no signs of excessive wear.

Driver door and fuel tanks

Cab doors and fuel tanks are often located in the same area on commercial vehicles. Be sure to check the following:

• Door and door hinges: Should be intact and latch completely. The rubber door seal should be clean and uncracked.
• External mirrors and mirror brackets: All external mirrors should be firmly attached to their mirror brackets. External mirrors should also be clean and uncracked. Also, be sure to adjust external mirrors and mirror brackets to provide an adequate rear view.
• Steps: Should be securely mounted and able to support the weight.
• Fuel tank: No leaks, with cap and seal unbroken and intact.

In-cab items

Cab inspection usually covers the following items:

• Steering wheel: Fully attached to steering column.
• Gauges: Check that air gauges, oil pressure gauges, and any other gauges for operation function normally within their operating range. Air pressure gauges should build pressure to the governor cut out during an applied pressure test.
• Warning lights: Lights should show clearly for any lighting indicators, such as ABS lights or oil pressure indicators.
• Windshield: Cracks beyond one inch (1”) are not permitted. Windshield wipers should be clean and work properly, and the truck should have enough windshield washer fluid.
• Seat belt: Should fasten securely.
• City horn and air horns: Both air and city horn should sound properly.
• Heater and defroster: Should heat and function properly.

Special checks for Class A and Class B inspections

As we mentioned earlier, a Class A pre-trip truck inspection will usually have different periodic inspection requirements than, say, a Class B pre-trip school bus inspection.

While periodic inspection requirements ultimately come down to the exact type of vehicle (a Class B garbage truck, for example, may require additional inspections for its armature and compactor), the main differences usually come down to trailers vs. passenger areas .

• Trailers share many of the same inspection checklist items as the tractor, specifically the wheels and tires, suspension, and rear of trailer lights and reflectors. Also, make sure that the landing gear is not broken and can be fully raised.
• Coupling area inspections include checking air connectors, electrical lines, and nearby glad hands. All mounting equipment, such as the fifth-wheel plate, kingpin, mounting bolts, skid plate, release arm, and locking jaw and pins, should be present, secure, and in good condition.
• Rear of truck suspension inspections share many of the same items as those of front inspections but with special attention paid to the torque arm (or radius rod), which should be mounted securely with intact brushings.
• Passenger items such as seating, passenger doors, and any wheelchair lifts should all be secure and in working order. Emergency exits should also be clearly labeled and sound an alarm when opened.
• School bus items include all of the passenger items listed above, with the addition of checking student loading lights, stop arm, student rear-view mirror, and a recent first aid and body fluid cleanup kit.

Pre-trip inspections made easy with CalAmp

With fleet management software from CalAmp, you can spend less time filling out pre-trip inspection reports and more time on the road. Request a demo today to see just how easy it is to use CalAmp’s pre-trip inspection tools!

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