Troubleshooting Trailer Running Lamp Circuit on 2020 Chevy 1500

Question:

My trailer blinkers both work, my trailer break lights both work, but my trailer running lights do not work. The owners manuel does not list trailer running lights, which fuse would I need to change to fix this. Thanks!

asked by: John C

Helpful Expert Reply:

GM refers to that circuit as the 'Trailer parking lamp'. The fuse is in location # 41 in the fuse box in the engine compartment.

After replacing the fuse, you'll want to closely examine the running lamp circuit on your trailer. You'll want to locate and repair the short that caused the fuse to blow, before plugging the trailer in for the first time. Otherwise, you'll continue to blow fuses. I'll link to a troubleshooting article that you might find helpful.

expert reply by: Mike L