DOT Core · Driver Training VideoPre-Trip Inspection & DVIR

Here's what most drivers get wrong: the pre-trip isn't for the DOT. It's for you. Every out-of-service item an inspector finds is something that was findable in the morning, for free, before it became a roadside event.

The walk-around, the way that works. Start in the cab: brakes building air, gauges, horn, wipers, seat belt. Lights on — then walk. Tires: tread, inflation, nothing between the duals. Wheels: no shiny lug nuts — shiny means movement.

The five items that put trucks out of service most: brakes out of adjustment. Flat or cut tires. Lights that don't light. Air leaks you can hear. And loose or damaged coupling. Every one of them announces itself in the morning — if you look.

Now the DVIR — the paper half. If you found a defect, write it. If it affects safety, it gets fixed before the truck moves — that's not company preference, that's federal rule. And sign the previous report: the mechanic's signature says it was fixed, yours says you checked.

One more habit that separates professionals: the same routine, in the same order, every single time. The morning you're tired and running late is exactly the morning the routine catches what your attention would have missed.

Your company standard: full walk-around every morning — same order, every time. Defects go on the DVIR the day you find them, not eventually. Safety defects stop the truck until they're fixed.