Jeremy1112

2020 Sierra 2500 HD been dealing with same issue for 8 months. Dealership has basically put in 4 new valve bodies 1 being whole new transmission one being whole new transfer case. Truck still not fixed now they are putting in the 5th new valve body that has supposedly been redesigned. But it’s on back order so disappointing that GM is putting out such a poor product time to stop giving them my money they just don’t care and don’t make quality trucks anymore.