NHTSA complaint: 2024 GMC SIERRA 1500 — ENGINE
Truck thinks Iâm about to run into something and slams on its brakes. Last time it sent my sister to the hospital to get 6 staples in her head. Digital cluster goes on and off as well as the infotainment center. Transmission bangs and shifts horribly. 900 miles on the truck with a check engine light and transmission warning.
National Highway Traffic Safety Administration — Office of Defects Investigation