Table 1 shows one common exterior lighting related problems of the 2025 GMC Sierra 3500.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
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. This has been happening since the truck was purchased from the dealer.