2025 GMC Sierra 2500 owner complaints
28 complaints filed with NHTSA, including 4 crashes, 0 fires, 6 injuries and 0 deaths.
Problems by component
Recent complaints
September 18, 2026Air BagsUnknown or OtherCrash3 injuries
A driver hit me in the side of the car at around 70 mph to where it bent the frame of the truck and the airbags did not deploy causing a major issue and my daughters head to hit the side window.no warning lamps and it’s currently at a body shop right now
September 18, 2026Air BagsUnknown or OtherCrash3 injuries
Air bags didn’t deploy after being hit so hard in the side it bent the frame and my daughters head head hit the side window
August 25, 2026Electrical SystemExterior LightingUnknown or Other
My 2025 GMC Sierra 2500 experienced repeated electrical failures that caused complete battery drainage and multiple overnight no‑start conditions within the first year of ownership. These failures occurred in extreme desert heat, where temperatures in [XXX] reach 120°F. A vehicle that repeatedly fails to start in these conditions creates a serious safety hazard, including risk of heat‑related medical emergencies if stranded. The defect persisted despite multiple repair attempts and two battery replacements. The dealership ultimately told me I would “need to replace batteries as needed,” instead of diagnosing the underlying electrical issue. Detailed Description of the Problem Multiple overni
July 27, 2026Service Brakes
My 2025 Sierra 2500HD repeatedly displays “Trailer Brakes Disabled—Service Required” with a lithium- and solar-equipped trailer. The truck passes the EL-52641 simulator, but the failure occurs intermittently while towing and resets after Park or reconnecting the trailer. This closely matches the higher-trailer-battery-voltage/backfeed condition described in N232414840. Please open a TAC case and determine whether my 2025 has the revised Trailer Brake Power Module or whether GM engineering authorizes module replacement.
June 18, 2026SteeringService Brakes
Normal driving 40mph brake failure and power steering loss. Towed vehicle to dealership