When I shift the vehicle to park and turn it off, about 90% of the time the instrument panel will display a message that says -??Shift to park-??, and the electrical components will not shut down. The vehicle is in park, but the computer won-??t detect it. I took it to dealer while under warranty, and dealer simply stated that it wasn-??t happening. It continues to happen, and I fear that it it won-??t shift into park later. As is, sometimes it takes an hour or more to detect that the vehicle is in park. I fear that it will cause a dead battery and leave me stranded. I don-??t know if this is a computer issue or a transmission issue. It has been ongoing for at least 10 months. Vehicle was dropped off for repair at dealer in December, 2022, but no repair was performed.

- Fort Collins, CO, USA

Was driving my 3500 (an 8000# truck capable of towing 20k#) and suddenly the vehicle lost power and steering, forcing me to the shoulder of a curvy mountain road, going downhill. Truck then started blinking lights and telling me to restart. upon restart, the truck would not engage the transmission. Truck was in drive but the motor was just rev'ing. I turned truck off and then back on and it seemed to return to normal. Am not comfortable driving truck at this time. GM has been notified of the issue, and, has not diagnosed an issue, as of this writing.

- West Jefferson, NC, USA