2025 GMC Sierra Ev

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 designed. This results in poor climate control and significant discomfort for the driver and passengers. The defect has been confirmed by an authorized GMC dealership. The vehicle has remained at the dealership awaiting warranty repair because the required replacement part is unavailable. General Motors has not provided a repair completion date or an estimated delivery date for the replacement part. I have found reports from other owners describing the same HVAC airflow-direction failures on GM electric pickup trucks built on the same platform. The vehicle is currently available for inspection.

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 appear closer like other mirrors do.

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 backing moves the mirrors back to the normal position making backing a trailer for example dangerous.