What 42 owners told NHTSA about the 2022 GMC Sierra 2500 Hd

Was driving down the highway and was approaching a red light. As I was slowing down my transmission down shifted hard and my rear wheels briefly locked up and my truck went in to reduced power Took to dealership only to find out the valve body failed and my truck wasn't covered

NHTSA ODI 11721120

I am receiving a "Shift to Park" warning intermittently when parking my truck. The truck is in park, but the transmission does not recognize this and flashes the warning on the dash and chimes. While this is happening, I cannot lock the vehicle, and the battery is being drained. I have read that this is a known issue with other GMC models as well. I just was given a $1074 bill to replace the transmission control with park sensor.

NHTSA ODI 11678157

I was driving home from work and my truck down shifted and rear wheels locked up, now it’s in limp in mode and will not shift.

NHTSA ODI 11662855

The vehicle will be in the park position and a warning on the dash will say shift to park not allowing you to shut off the vehicle. Jiggling the shifter sometimes works but often have to restart the vehicle numerous times to get the error message to not appear and be able to proceed with shutting off the vehicle

NHTSA ODI 11632001

The contact owns a 2022 GMC Sierra 2500. The contact stated that while driving approximately 65 MPH, the warning message "transmission overheated" had suddenly displayed and an audible alarm activated. The vehicle was later towed to the local dealer who diagnosed that the transmission valve body assembly needed to be replaced. The transmission valve body assembly was replaced and the failure was remedied. The manufacturer was notified of the failure. The failure mileage was 18,334.

NHTSA ODI 11619786