Table 1 shows three common electrical system related problems of the 2015 GMC Sierra 3500. The number one most common problem is related to the electrical system (three problems). The second most common problem is related to the headlights turn off while driving (one problem).
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Headlights Turn Off While Driving problems | |
| Horn problems |
The service trailer brake icon keeps appearing on my screen I’m afraid it’s going to not work properly when towing trailers it’s constantly going on and off I believe it’s the brake control module switch but also could be in the harness just want gm to be aware of the many Read details...
The contact owns a 2015 GMC Sierra 3500. The contact stated that a snow plow was installed by a dealer however, after the installation, the instrument panel was dim and the headlights failed to illuminate. The technician uninstalled the snow plow and the vehicle resumed to function as normal. Read details...
The contact owns a 2015 GMC Sierra 3500. The contact stated while driving 55 mph, another vehicle merged into the lane that the contact was driving in and the contact pressed on the horn pad however, there was no sound coming from the horn. Read details...