GMC Troubleshooting Questions? Ask a Mechanic for Answers
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Are the trailer fuses in the fuse box? Also, the relay?
Yes, trailer backup relay and a fuse. Does the trailer have a braking system on it?
I see, thanks. I was under the impression that there was 'no power' to the trailer lighting. Are there any trailer brake messages on the dash?
There has been some issues on them with the GEM that may be covered under a campaign.
I can get the bulletin for it and put it in a PDF file, (it is rather large) and send it to your email address for as little as allowed.
You will just have to accept the additional service offer and ENTER your email address in the “ENTER CONTACT INFO” section so that I can see it, Thanks
Where did you go?