Commercial Vehicle Pre-trip-Inspection Checklist

A thorough Commercial Vehicle Pre-trip-Inspection Checklist is essential for any owner-operator or fleet manager who wants to avoid costly surprises on the road. By using a CDL pre-trip inspection checklist, you can catch issues early, before they turn into breakdowns or DOT violations. This Commercial Vehicle Pre-trip-Inspection Checklist covers everything you need to know to stay compliant and keep your trucks running smoothly.

Implementing a Commercial Vehicle Pre-trip-Inspection Checklist isn’t just about ticking boxes; it’s about protecting your drivers, your cargo, and your bottom line. Whether you rely on a CDL pre-trip checklist or a Class A pre-trip inspection checklist, consistency is key. Use a CDL Class A pre-trip inspection checklist, both for added peace of mind. It emphasizes both the license type (CDL) and the vehicle class (A). It’s usually phrased this way in official training manuals, FMCSA prep material, or state DMV guides. For a detailed pre-trip inspection list and more expert tips, check out Epika Fleet’s Class A CDL Inspection Guide.

What is a Pre trip Inspection

What is a Pre-trip Inspection?

A pre-trip inspection is a systematic process drivers and fleet managers use to thoroughly evaluate a vehicle’s condition before hitting the road. A pre-trip inspection list is used for this purpose, which ensures key components like brakes, tires, lights, and fluid levels are inspected to prevent breakdowns and maintain safety. Using tools like a pre-trip inspection list helps keep your fleet compliant and road-ready.

The Commercial Vehicle Pre-trip-Inspection Checklist also includes specific checklists tailored for different vehicle classes, such as class A, B, and C pre-trip inspection checklists. Every checklist varies from the other based on the type of vehicle and the purpose it serves. These pre-trip inspection checklists help logistic hustlers to carry out routine inspections and protect their investment and drivers.

Are There Differences Between Class A and Class B Checklists

What’s on the Class A CDL Pre-Trip Inspection Checklist?

A comprehensive inspection of a truck should take somewhere between 10 and 30 minutes before leaving on a trip, which includes both performing the inspection and filling out the form. Using a Commercial Vehicle Pre-trip-Inspection Checklist, one can make sure no critical item is missed. Some items are very easy to check, while others may require a bit more detailed inspection; all of them need to be done, and records of the results need to be kept.

Note: The Driver Vehicle Inspection Report, or DVIR, is a vital part of this process and should be kept as part of the records along with the vehicle. In the event of an accident or vehicle failure, it’s very likely that this report will be checked, and if there’s a mismatch, it can put the driver in hot water.

While you can technically perform the inspection in any order and with any starting point, it’s most common to do a tip-to-tail pattern starting at the front of the truck and working back. Thus, we’ll format our guide here in the same way.

Whatever pre-trip checklist you’re using, remember this is not an official checklist; it’s just an example of the kinds of things being inspected for a DVIR. Be sure to reference your local laws and specific regulations to determine what needs to be on your checklists.

Front of Truck

Starting with the front of the vehicle, check:

  • Lights: Make sure all front-end lights are clean and visible. Further, make sure they’re all operational, the right color, and are securely mounted in place.
  • Tilt: Make sure the truck isn’t visibly leaning, which can indicate problems elsewhere.
  • Leaks: Make sure there are no visible fluid leaks underneath the engine compartment, which can indicate problems elsewhere.
  • Wipers and Washer Fluid: Inspect windshield wipers for damage and ensure washer fluid reservoir is filled and functional.
  • Horn(s): Test horn(s) to confirm proper operation.
  • Traffic Monitoring Devices: Confirm all cameras and sensors are clean, working, and properly mounted.

Engine Compartment

Under the hood, there’s a lot to check.

  • Fluids: Check levels and quality of power steering fluid, coolant, engine oil, and windshield washer fluid. Inspect fluid reservoirs and hoses for cracks, leaks, and secure mounting. A timely oil change is one of the most cost-effective ways to protect your fleet’s engine. Learn more about the cost of oil changes for fleet vehicles.
  • Belts: Engines rely on belts to function, so check the belts for any pumps, the air compressor, and the alternator to make sure they’re in good condition. Look for cracks in the belts, and check to make sure they have a minimum amount of play (no more than 3/4ths of an inch).
  • Engine Elements: Check the air compressor, alternator, and water pump to make sure they are all properly mounted, appropriately connected, and free of cracks, leaks, or other faults.
  • Battery: Check battery is securely mounted with clean terminals and no corrosion.

Front End

Aside from the visible front and the engine, there are other aspects of the front of the truck that must be checked.

  • Steering: Make sure the steering gearbox and any attached hoses are clear and free of damage, leaks, cracks, or other issues. Make sure everything is properly secured. Further, check the steering column and make sure it’s not bent or broken.
  • Rods and Arms: Check that the Pitman arm is in good condition and that the cotter pins are present and tight. Check the drag link for proper greasing and good condition of the rubber. Check the control arms and tie rods to make sure they’re secure and aren’t cracked, bent, or broken.
  • Front Suspension: Check that the spring mounts, spring hanger, and leaf springs are all in good condition and are not cracked or broken. Check that all U-bolts are accounted for and not worn down. Check the shock absorber for leaks, which are typically along the top or bottom.
  • Reflective Tape and Markings: Ensure all reflective tape and safety markings are present and intact for visibility compliance.

Cab

The cab contains many essential elements for a successful trip and, of course, must be inspected.

  • Seat Belts: Should be free of rips and fraying and latch properly.
  • All Interior Lights and Indicators: should be operational.
  • Windshield: should be free of debris and cleaned, with no more than a 1″ crack anywhere.
  • HVAC System: Ensure heating, ventilation, defrost, and air conditioning systems are operational for driver comfort and visibility.
  • Safety Equipment: Confirm that a fire extinguisher, reflective triangles, and a first aid kit are present and are in good condition to meet regulatory requirements.

Driver’s Side

On the driver’s side of the vehicle, the Commercial Vehicle Pre-trip-Inspection Checklist requires checking several critical components to ensure safety and compliance.

  • Mirrors: Check that the mirrors are properly attached and mounted. Make sure they are clean and are not broken, and that they have proper alignment for visibility.
  • Door: Check to ensure the door is properly operating and latching and that the hinges are intact. Further, make sure the door seals are in good condition and are not torn, rotted, or missing.
  • Steps/Ladders: Verify steps and ladders are secure, damage-free, and able to support weight.
  • Fuel tank. Make sure the tank is not leaking, that the fuel cap is tight and sealed, and that no sensors are tripping during normal operation. Fuel tank integrity impacts not only safety but also overall improves fuel efficiency, a key factor when facing today’s diesel supply challenges.

Rear End

The back of the truck is just as important to inspect as the front when following a Commercial Vehicle Pre-trip-Inspection Checklist.

  • Drive Shaft: Make sure the drive shaft is straight and not twisted, the joints are in good condition, and there’s no debris caught up in it along the way.
  • Exhaust System: Make sure the exhaust system is in place and operational, that there are no signs of leaks such as soot build-up, and that critical elements like the SCR system are intact.
  • Frame: Ensure that the visible points of the frame that are exposed are in good condition, that nothing is broken or cracked, and that there are no unauthorized welds or improper repairs.
  • Steps and Catwalks: Where present, make sure that these elements are properly secured, free of debris, and in good condition.
  • Mudflaps: Ensure they are attached securely, and in an appropriate state, and that they have the correct height matched to the vehicle.
  • Lights: Check rear lights (turn signals, brake lights, hazards, license plate lights) to be clean, functional, and properly mounted.

Couplings

The couplings between truck and trailer are essential for proper operation and safety on the road, making them a critical part of the Commercial Vehicle Pre-trip-Inspection Checklist.

  • Air Connectors: Make sure that they are properly connected, intact, and mounted without dragging.
  • Electric Lines: Check that lines are safe with no abrasions, cuts, and are simply latched.
  • Gladhands: Starting with connections, gladhands should be in good condition, and their seals should not be rotting out or leaking.
  • Fifth Wheel: The platform should be securely attached to the frame and should not be in poor condition, with cracks or bends. Check that there is no unauthorized welding or poor repair fit.
  • Bolts: Check all bolts are in the right place, and make sure all are tight.
  • Skid Plate: check that it is well-greased.
  • Release Arm: Ensure that this is locked well.
  • Kingpin: Look at secure mounting and checking that it is not damaged with cracks and bends.
  • Apron: Check for proper mounting and crack-free welds.

Brake System

Very little is more important in a Commercial Vehicle Pre-trip-Inspection Checklist than the brakes, so these need to be inspected before every trip.

  • Brake Hoses: Check for secure mounting, no splits, cuts, or leaks.
  • Brake Chambers: Ensure there are no air leaks at all; otherwise, you can fail at DOT inspection.
  • Slack Adjuster: Make sure the adjuster is securely mounted and at a proper angle with the brake chamber.
  • Brake Drums: Inspect for damage or bluing due to overheating.
  • Brake Pads: Confirm they are at least 1/4 inch thick and free of contaminants like oil or debris.
  • Parking Brake: Test that the parking brake engages and holds properly.
  • Brake Contaminants: Ensure no debris, oil, or grease contaminates brake components.

Wheels

There are a lot of wheels on a commercial truck, and they all need to be inspected.

  • Steer Tires: Look for cuts, bulges, abrasions, or damage. Check tire pressure and ensure tread depth is a minimum of 4/32″ and evenly worn.
  • Drive Tires: Same checks as steer tires with a minimum tread depth of 2/32″.
  • Valve Stems: Confirm valve stems are secure with caps in place and no audible leaks.
  • Lug Nuts: Verify all lug nuts are accounted for, tight, and free of rust streaks or damage.
  • Rims: Inspect rims for damage such as cracks, bends, or unauthorized welds.

These are the things you will be accounted for and must be present to align with the requirements found in the pre-trip inspection class A checklist.

Pre-Trip Inspection Checklist to meet daily DOT requirements

A Commercial Vehicle Pre-trip-Inspection Checklist is essential to maintain your truck on the road and stay DOT compliant. This checklist will help you minimize the risks of costly breakdowns, heavy roadside fines, and keep the driver safe. Here is a focused CDL pre-trip inspection checklist that will keep your fleet DOT compliant daily and ensure the safety of your vehicle, excluding the details needed to pass a CDL test.

  1. Front of Truck:
  2. Engine Compartment:
  3. Brakes:
  4. Tires and Wheels:
  5. Couplings:
  6. Safety Equipment:
  • Lights should be clean and operational
  • Truck tilt should be normal (no visible lean)
  • No visible fluid leaks
  • Wipers should be functional, and the washer fluid must be filled
  • Horns must be operational
  • Fluid levels must be adequate (power steering, coolant, engine oil)
  • Belts and hoses should be free of cracks and properly mounted
  • Battery must be secure, and terminals should be clean
  • Brake hoses and chambers are supposed to be free of leaks
  • Brake pads should be at least ¼” thick and clean of contaminants
  • Slack adjuster should be properly mounted and angled with brake pads
  • Parking brake must be functional
  • Proper inflation and tread depth (4/32” steer, 2/32” drive)
  • There should be no cuts, bulges, or damage
  • Lug nuts must be tight and rims undamaged
  • Make sure air and electrical lines are secure without leaks or damage
  • Fifth wheel and kingpin must be secure and free from damage
  • Fire extinguisher, reflective triangles, and first aid kit must be present

Following this pre-trip inspection checklist ensures your vehicle meets FMCSA standards, reduces roadside violations, and helps maintain consistency across your fleet. For a streamlined process, use mobile inspection apps. These apps allow drivers to follow pre-trip inspection checklists on smartphones or tablets, mark issues instantly, and submit reports electronically. These electronic reports can be accessed and shared in real time, reducing paperwork and errors.

Are There Different Requirements for Inspections in Different States?

Truthfully, yes. The Commercial Vehicle Pre-trip-Inspection Checklist is built from three different sets of guidelines to ensure thorough safety and compliance.

At the top level, you have the federal requirements as described by the FMCSA. This is the “bare minimum” amount of inspection your drivers will need to complete in order to operate their vehicles safely and legally. These federal rules form the foundation of any pre-trip inspection checklist you use.

The second is state-level vehicle inspection report requirements. Each state will start with what the FMCSA lays out, but can add its own unique additional elements to the checklist. They’re more or less identical to the federal guidelines; sometimes, they have additional items to check. This means your pre-trip checklist CDL may need adjustment depending on where you operate.

To use some examples:

While these more or less cover all of the same bases, some of them will be broader or more specific than others.

The third layer is company-level additional requirements. Your business may want to add additional items to the pre-trip inspection checklist to cover vehicle-specific issues or common problem areas that are more relevant or frequently overlooked in other inspections, ensuring that all bases are covered. These won’t get you in trouble with the government if they aren’t checked, but they can be beneficial for your own purposes, such as preventing breakdowns and improving fleet reliability, and controlling fleet maintenance costs.

Additionally, there can sometimes be a fourth layer, which is a vehicle-specific layer. These are specific problem areas you identify with individual trucks, and you can make a point of ensuring that the driver checks them to make sure they aren’t likely to fail mid-trip. Usually, though, these are covered by the other layers already.

Together, these layered guidelines form a comprehensive pre-trip inspection list that balances regulatory compliance with practical fleet management. For more detailed guidance on building and using effective checklists, explore Epika Fleet’s Class A CDL Inspection Guide. This approach helps you stay compliant, reduce roadside violations, and keep your trucks safe and operational.

How Epika Can Help

At Epika, we specialize in providing a nationwide network of maintenance service providers who can help your fleet with proactive, preventative maintenance. With our help, you’ll pass every Commercial Vehicle Pre-trip-Inspection Checklist with flying colours every time because we help make sure every element of a truck is in good repair before the inspections need to be performed. Using our network alongside your CDL truck pre-trip inspection checklist ensures that your vehicles stay safe and compliant.

Ready to simplify your maintenance and ace your CDL A pre-trip inspection checklist? Simply, reach out and learn how we can help keep your trucks operational and, more importantly, safe.