GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi there, I am Cam. Sorry to hear about this issue. Did both the fobs and the rear wiper fail at the same time?Does the rear hatch open normally and lock/unlock properly?
Its not the hatch, but the overall operation of the keyless entry I am am thinking about.
I believe your issue is related to the wiring that runs to the rear hatch. What I need you to do is open the hatch and inspect the wiring that runs through the rubber boot to the hatch and inspect for damaged or broken wires. I suspect you will find one or more cracked.