2015 GMC Sierra 3500 - Check Trailer Wiring
We just purchased a 2015 GMC Sierra DRW with the Duramax and integrated brake controller. I hooked up the trailer (a 2013 Lifestyle 36FW with the standard electric brakes) for the first time and I dro...
Forum Discussion
glad you got it tracked down and repaired. that's frustrating and it turned out to be a dangerous fault as you wouln't have had much trailer braking power.
It's good that you had some good people to hunt that down.
It's good that you had some good people to hunt that down.
