Steps to take when your truck breaks down on a highway
Every driver hopes to never use these steps, and every driver should know them cold. When your truck breaks down on a highway, the order you do things in keeps you safe and gets you moving faster. Here is the checklist.
Control the truck and pick your spot
The moment you feel a problem, signal, ease off the throttle, and aim for the shoulder, a ramp, or an exit. Keep the wheels straight as you stop. Getting fully off the travel lane is the single most important thing you can do.
Make yourself visible
Turn on your hazard flashers right away. Then set your warning triangles. Federal rules under 49 CFR 392.22 require three, placed at about 10 feet, 100 feet behind, and 100 feet ahead, within 10 minutes. They buy other drivers the time they need to react.
Protect yourself
Get out on the side away from traffic, put on a reflective vest if you have one, and stand behind the guardrail rather than next to the truck. If anyone is in danger, call 911 before anything else.
Assess what happened
If it is safe to look, figure out what failed: a tire, an air problem, the engine, or an electrical fault. Do not step into traffic to do it.
Call for the right help
Call a shop that can either dispatch a tow or send mobile repair, and have your mile marker ready. Knowing whether you need a tow or a mobile fix gets the right help rolling the first time.
Decide once you are safe
With the truck off the road and help on the way, weigh the options. A small fix in a safe spot may be a mobile repair, while a truck that cannot roll needs a tow. Our note on roadside cost explains the trade-off.
Prevent the next one
Most breakdowns are preventable. A solid pre-trip and a real preventive-maintenance program catch the failures before they happen. You can find our work on the truck repair services page.
FAQ
What are the steps in a highway breakdown?
Control the truck, get visible with hazards and triangles, protect yourself, assess the problem, then call for help.
How long do I have to put out triangles?
Within 10 minutes, per federal rules.
Should I stay in my truck?
Usually no. Get to a safe spot away from traffic, behind a barrier if there is one.
Who do I call for a truck breakdown?
A shop that can dispatch a tow or send mobile repair. Have your location ready.
If you go down on a highway near the Lehigh Valley, call Royal Truck Repair at (610) 841-2521 and we will get the right help to you.