Table 1 shows six common electrical system related problems of the 2021 GMC Sierra 1500. The number one most common problem is related to the electrical system (49 problems). The second most common problem is related to the instrument cluster/panel (one problem).
Experience a automatic ota update to the info system on my 2021 GMC sierra(I did not iniciate) which burnt out the radio module which controls the info system. I am being charged $1,300+ for repair due to vehicle being out of warranty(52,000 miles) and no recall on this vehicle model for this issue. Read details...
The contact owns a 2021 GMC Sierra 1500. The contact stated that while operating the vehicle, the dashboard gauges, instrument cluster, and infotainment center malfunctioned and became inoperable. Additionally, while starting the vehicle, there was a loud cranking sound coming from the engine Read details...
My truck had smoke rolling out at work when I noticed it. Tried to put it out it burnt my hands ! destroyed the inside I had it towed and insurance investigator said it was do to a brake controller for the trailer. Read details...