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The Importance of Post-Trip Inspections

March 10th, 2023

Kelli Bloom

Kelli Bloom

Kelli has been in the trucking industry since 2003. She got her start working in compliance for a trucking carrier that specialized in government freight. She has been the compliance manager with ATS since 2017.

Is there anything worse than waking up to a flat tire on your tractor or trailer? It puts a wrench in your entire plan for the day. By now you should understand a pre-trip is essential, but do you know why a post-trip inspection is also important?

Post-trip inspections are often overlooked. They work hand-in-hand with pre-trips to ensure your tractor and trailer are in good working order every time you get on the road. When you catch something in a post-trip inspection, you have extra time to get it fixed.

Failing to do a pre-trip and post-trip inspection every day you’re out on the road can result in dire consequences or a violation on your driving record. 

Here at ATS, we’re safety driven. We have several safety programs in place to keep our drivers and the motoring public safe. That’s why, in this article, we'll explore the reasons why post-trip inspections are so important and we'll provide some tips for how you can conduct a thorough and effective inspection. 

You'll have a better understanding of why post-trip inspections matter and how they can help keep you and others on the road safe.

Truck driver man changing semi-truck tire.

Why is a Post-Trip Inspection Important?

This safety check is essential to ensure your truck is safe to drive when you start it up again for your next trip. Your truck and trailer undergo some wear and tear when you drive. Issues that weren’t there when you did your pre-trip may arise.

While a pre-trip helps you ensure your truck is roadworthy and nothing was stolen or damaged overnight, a post-trip helps you identify issues after you drive. This allows you to have them addressed before you drive again.

During a post-trip inspection, you should examine various parts of the vehicle, including the tires, brakes, steering and suspension, lights, mirrors and other safety features.

In addition to safety, post-trip inspections are important for maintenance and repair purposes. By identifying issues early on and reporting them to the appropriate department, you can take care of repairs quickly. 

Call your driver manager or the maintenance team. Don’t let the issue go unfixed for you or another driver to deal with later. Taking care of issues right away, rather than letting them lie, can help reduce the likelihood of more extensive repairs being required down the line. 

Post-trip inspections are also often required by your trucking company, as they’re considered a best practice. You’ll stay in compliance with your company’s rules and regulations by doing a daily post-trip.

Related: How to Prevent Costly Breakdowns

When Should I Do a Post-Trip Inspection?

It’s best practice to do a post-trip inspection once you’re done driving for the day. Really, you should be taking a good look at your truck every time you stop — when you fuel, when you take a break, when you stop at a customer’s site, etc. 

If you notice something is wrong, catching it during a post-trip is ideal. Many drivers would rather not catch anything wrong with their truck at all, sure, but when you catch an issue during your post-trip, you have more time to get it fixed.

If you catch it during a pre-trip, you’re ready to start your day. Now, you have to make an entirely new plan. You might be waiting hours for someone to come and assist you or hours for a shop appointment. It can lead to a domino effect where you then miss a delivery or pickup window. You’ll also probably be using up a lot of your valuable drive-time hours. 

But if you catch it during a post-trip, you can call your company to help you get a shop appointment immediately in the morning. You can grab the part to fix it after you’ve taken your legal 10-hour break (if you’re allowed to fix the truck). 

Related: Can Drivers Do Their Own Truck Repairs?

Or, while you’re on your 10-hour break, you can wait for someone to arrive with the part and tools to fix it for you. You’re utilizing your rest time, rather than the time you’d be using to drive if you catch it during a pre-trip. 

Remember: If you’re helping to fix the truck in any way, you should be tracking your Hours of Service.

Let’s put it this way: If I notice I have a flat tire when I get to work, do you think I’m going to get it fixed during the day? Or do you think I’m going to wait until I have to leave for the night to get someone out to fix it? I’m going to make sure it’s taken care of during the day so I can drive home right away after my shift. 

Greased fifth-wheel plate.

Post-Trip Inspection Checklist

During a post-trip inspection, be thorough. It may take you around 10 to 15 minutes to do a complete post-trip inspection. Essentially, you want to make sure nothing is leaking, everything is bolted on properly and securely and everything is in good working order.

Here’s a list of the parts and components you should be looking at on each section of the tractor and trailer:

Front of Vehicle

  • Lights 
  • Potential leaks
  • Vehicle levelness 
  • Engine 


Engine Compartment

  • Fluid levels
  • Air and water hoses
  • Alternator belt/wires
  • Steering linkage/components
  • Steer axle
  • Wheel assembly


Driver Side/Fuel Area

  • Door and mirror
  • Fuel tank
  • Catwalk/steps
  • Lights
  • Driveshaft
  • Exhaust
  • Frame
  • Drive axles


Rear of Vehicle

  • Mud flaps
  • Lights


Coupling System 

  • Air/electrical lines
  • Fifth wheel



  • Headboard
  • Front lights/reflectors
  • Landing gear
  • Cross members
  • Side lights/reflectors
  • Tandem slide/release arm
  • Trailer axle
  • Back of trailer. 



  • Seat belt
  • Safety equipment
  • Heater/defroster
  • Wipers
  • Turn signal indicators 
  • ABS light
  • Gauges
  • Horn
  • Glass (windshield, mirrors, windows)


For a thorough list of what you should look for when examining each of these parts, and to learn how to do a three-step air brake test, visit our pre-trip inspection checklist

Trailer rear axle suspension close-up.

Extend the Life of Your Truck and Prevent Violations

Post-trip inspections are a crucial component of safe and effective vehicle operation. By taking the time to conduct a thorough inspection after every trip, you can help ensure the safety of everyone on the road and help keep your tractor and trailer in good working order. 

If you notice something, say something. Drivers often let things go when they catch them in their pre- or post-trip inspections. You can get caught for the simplest issues, like having an in-cab light out or a burned-out trailer light. When you get a violation, there are consequences.

Learn more about CSA scores and ISS scores and how they negatively impact you. 

Remember: If you have a breakdown as an ATS driver, call Road Service and then your driver manager.