Are There Fuses For Trailer Light Functions On A 2014 GMC Sierra 2500

Updated 10/08/2024 | Published 10/07/2024

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Question:

I have a 2014 gmc 2500 and I cant get tail lights on trailer to work, also passenger brake light or turn signal wont work, would there be a fuse just to control those areas

asked by: Michael

Expert Reply:

Hey Michael,

There are fuses for your trailer light functions in the engine compartment fuse block. Fuse #17 would be your trailer stop/turn function for the passenger side and fuse #14 would be for the driver's side. Your trailer running light signal is fuse #15. You can check those fuses and see if they're blown and replace as needed and then either connect back to your trailer or use a tester # PTW2993 at the 7-way to see if your signals are now coming through.

If you are still having issues then let me know and we can keep troubleshooting.

expert reply by: Kevin C