GMC Sierra 3500 owners have reported 77 electrical system related problems since 1996. Table 1 shows the 10 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (59 problems). The second most common problem is related to the vehicle's integrated trailer brake control (6 problems). For details of each of the problem category, use the links in the table.
Randomly when the truck is turned on, the turn signals will stop working, no noise, nothing. When this happens, the infotainment system also stops working. It is unsafe to be driving and not knowing if your signals are working or not. Read details...
The contact owns a 2024 GMC Sierra 3500. The contact stated while driving at approximately 60 mph and towing a forest river riverstone legacy 5th wheel trailer, the brake pedal was depressed to slow for oncoming stopped traffic; however, the vehicle failed to respond as needed with the Read details...
The contact owns a 2008 GMC Sierra 3500. While the contact was driving in reverse approximately 2 mph, the backup indicators would not operate. The failure occurred sporadic. The vehicle was taken to the dealer on five different times for the identical failure. Read details...
Parts of the cluster, tachometer, fuel gauge, oil pressure, amp gauge have failed one after the other. Although 04 model was covered under a recall, the same exact cluster was used in the 05 GMC and nothing has been done and not covered under warranty. Several GMC owners have this same issue. Read details...
Progressive pause starts when starting vehicle. After a few weeks of pause starting vehicle had no power at all. Towed it to dealer they replaced a bad battery. Pause start continued and after 4-5 weeks vehicle would not start. Couldn�t turn park break off. Read details...