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Saturday, November 22, 2025 at 10:07 PM

Important Things To Double-Check Before Towing a Trailer

What should a semi-truck driver inspect before towing a trailer? This checklist covers five areas to look at—like the brakes and lights—before every trip.
A man holding a clipboard leaning down to inspect the undercarriage of a semi-truck and its attached trailer.

As a semi-truck driver, you haul trailers day in and day out. Over time, this process can become routine. You may begin to gloss over the checks you did so diligently when you were just beginning, because now it feels like second nature. But don't let a missed item one day be the cause behind an accident, injury, or costly delay. Here are some things you should always double-check before towing a trailer, no matter how experienced you are.

Check Your Brakes

First, inspect your truck's and trailer's brakes. A thorough brake check includes looking for worn pads, checking air pressure levels, and listening for any unusual noises. Do you hear any squealing or grinding when you apply the brakes? Those are signs they may need service.

Inspect Your Tires

Next, walk around your truck and trailer to examine each tire. Look for any visible damage, like cuts or bulges, and check the tire pressure. An underinflated tire can lead to a blowout, so always confirm that each tire is at its recommended PSI before you get on the road.

Test All Lights

Are all your lights functioning? Test your headlights, taillights, brake lights, and turn signals. You want other drivers to see you clearly, and functional lights are a legal requirement. A quick check can prevent a ticket or a collision.

Examine the Fifth Wheel

Your fifth wheel connects the semi-truck to the trailer, so it's a component you can't afford to overlook. Before each trip, check that the jaws are locked securely around the kingpin. Difficulty latching, cracks in the frame, and excessive wear are a few signs you need to replace your fifth wheel if you want it to support your load.

Final Checks for Safe Towing

Don't neglect to check these important things before you tow a trailer if you want your drive to be safe, smooth, and on schedule. A few minutes of your time before every drive can prevent a major setback. What checks are part of your pre-trip routine?


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