Chevrolet Silverado 3500 owners have reported 104 electrical system related problems since 1996. Table 1 shows the 14 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (66 problems). The second most common problem is related to the vehicle's wiring (10 problems). For details of each of the problem category, use the links in the table.
There is a common and very dangerous electrical wire routing problem on my vehicle, along with 3 dozen others and my dads (separate but same truck) I confirmed with (fb group for owners of 17-19 l5p GMC diesel trucks) where the alternator positive wire from the alternator to the battery is run Read details...
Engine loss power while pulling a loaded horse trailer around 10,000 pounds. Error message saying power has been reduced. The top speed while on a hill was abiut 15 miles an hour. Tractor traillers had to manuver around me due to the low speed on an expressway with 70 mile an hour speed limit. Read details...
The contact owns a 2025 Chevrolet Silverado 3500. The contact stated that while driving at various speeds and towing a trailer or an RV, the brake pedal was depressed, and the trailer brake failed to engage. The contact stated there was no warning light illuminated. Read details...
I have 136,571 miles on vehicle. My speedometer has stopped working. I see that there are alot of people complaining about this problems on forums. There is a recall on some GMC vehicles, but alot of people are not meeting the requirements. . Why! I think the recall need to be expanded. Read details...
The new gm 2021 trailer lighting module and/or system is defective. It fails a pre-connection test with tester, gives "check trailer wiring" warning on dash without a trailer connected and turns off any trailer lighting connected without warning on the road, without blowing a fuse. Read details...