GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi there, I am Cam.Yes, the control head in the dash is the most likely in this year range of vehicle. The head or module is common for issues and the mode is often the resulting issue.Your best bet here provided the other functions work is to replace the control head. There is no programming, you simply plug in a new one. The trim around the dash comes off with the wheel tilted down and the shifter in low, it pops off and you can then access the screws and tabs to replace the had.