Many trucks and SUVs house secondary fuses inside the cabin. Check near the floorboards on the driver’s or passenger’s side. You may need to pop off a plastic trim piece to reveal the fuse block.
To identify the standard location(s) of the fuse protecting the trailer lighting circuit on a towing vehicle, and to provide guidance for troubleshooting. trailer lights fuse location
The most common place to find a fuse related to trailer lights is in the vehicle's fuse box. This can be located: Many trucks and SUVs house secondary fuses inside the cabin
In many modern SUVs and crossovers, the trailer wiring module has its own dedicated fuse box in the rear. Look behind the interior side panels in the trunk or cargo area, often near the jack storage compartment. Understanding the Fuse Labels To identify the standard location(s) of the fuse
⚠️ If the fuse blows immediately after replacing it, you likely have a "short to ground." This usually happens where the trailer wire is exposed and touching the metal frame. Check for pinched wires or shredded insulation!
Once you find the box, use a plastic fuse puller (often located inside the fuse box lid) to remove the suspected fuse. Hold it up to the light: