2025 GMC Sierra 1500 electrical system problems
26 complaints about electrical system have been filed for the 2025 GMC Sierra 1500, which is 13% of all its NHTSA complaints. It is the 3rd most reported problem area for this model year.
At a glance
- Complaints
- 26 13% of this year's complaints
- Crashes and fires
- 2 and 0
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
What the data shows
These complaints mention 2 crashes.
What owners wrote
2025 GMC Sierra 1500 shifted from Park to Drive uncommanded, accelerated uphill, and crashed while idling, keyfob outside of vehicle, March 2025. ESIS couldn't replicate and falsely claimed I didn't put it in Drive, despite photos and no one inside.
The contact owns a 2025 GMC Sierra 1500. The contact stated that while driving approximately 5 - 10 MPH, the vehicle went into LIMP Mode and failed to properly accelerate, and the transmission unexpectedly downshifted. There was an electrical malfunction, which caused the transmission to downshift. An unknown message was displayed on the instrument panel. The contact stated that the network was not operating at the correct voltage due to the wiring harness. The engine light illuminated after the failure.
Other problems reported for the 2025 GMC Sierra 1500
- Engine 62 complaints
- Drivetrain & axles 28 complaints