What owners reported to NHTSA, by component. One complaint can name several components.
Aug 4, 2026Unknown or other, Visibility/wiper
The HVAC airflow-direction system failed and no longer correctly controls where the air is directed. Even when the windshield defrost setting is not selected, the system continuously sends airflow toward the windshield. This unwanted airflow causes condensation and fogging on the windshield that cannot be turned off or redirected, impairing the driver's visibility and creating a significant safety hazard. The airflow is also defective in the other ventilation zones. Air is not consistently directed to the selected dashboard, floor, or other vents, and the HVAC system does not operate as desig…
Jan 28, 2026Electrical system, Engine, Fuel/propulsion system
Vehicle electrical propulsion system became inoperable creating a hazard to occupants in a temperature control required climate Vehicles visual control showing speed and all other information went completely black while vehicle was in motion.
Aug 2, 2025Visibility/wiper
The passenger side outside rear view mirror does not provide for a clear view on the passenger side of the vehicle. The adjustments on the mirror cannot be set to reduce or eliminate a blind spot on the vehicle. The mirror is not like a normal mirror from other vehicles. I have almost hit several vehicles due to the lack of clear view with the mirror. To give an idea of the blind spot, a vehicle can be seen in the rear view mirror but not seen in the side view mirror or it gives a false distance of where the vehicle is on side mirror. There is no verbiage on the side view mirror of objects app…
Jul 1, 2025Steering, Service brakes, Back over prevention
My 2025 GMC Denali EV has experienced repeated safety-critical issues, including severe torque pull under acceleration, making it difficult to maintain safe lane position and compromising steering control. This behavior persists even after inspection and is documented on video. The vehicle has also had repeated service brake assist faults, including one critical failure at under 6,000 miles and additional incidents that resulted in me being stranded out of state. Additionally, I have experienced ghost braking while reversing, where the vehicle unexpectedly applies brake force even when parki…
May 14, 2025Visibility/wiper
The passenger rear view mirror is completely flat, not concave like every other mirror we’re used to on a passenger vehicle. This mirror glass is only used on the passenger mirror of the EV trucks for some unknown reason. It is completely unsafe in such a large truck without huge blind spots. Because it appears to be zoomed you can completely miss cars otherwise viewable in blind spot. This also makes setting the passenger mirror up for towing very challenging and also dangerous. In addition the software for the backup titling mirrors works as designed for about 20 seconds and then while still…
Apr 15, 2025Power train
Failure in the lithium-Ion battery system. Battery conditioning system failed to manage heating and cooling of the battery system leading to catastrophic system failure. Dealership and manufacturer are unable to make repair leaving the vehicle un-operable.
Jan 17, 2025Fuel/propulsion system
Battery heating module failed. This resulted in small, hard to distinguish, "service vehicle" icon to appear on the dash with no further information. This warning icon first appeared during a long drive, then went away on its own and eventually came back. This failure would eventually make charging, particularly in cold weather, impossible and potentially stranding the occupants. The servicing dealership has confirmed this failure and is attempting to replace the module. However, parts for this replacement seem to be unavailable with no current estimated arrival.