I have bought this truck new in 12/2021. Problems started in April 2022. First issues were that I lost steering and brakes. I was able to put it in neutral and shut the vehicle off. I had the truck towed to Jack Hanania Chevy. They said it needed a new battery and that could cause a vehicle to act possessed. I have had constant alerts from onstar to service stabilitrack and anti lock brakes. Every time I bring it in, they tell me that it’s normal for those light to come on after being in 4 wheel drive. I brought it in yesterday and they told me again this is normal for the stabilitrack and antilock braking to be on after the beach. I left there and I lost braking and the truck started accelerating at full throttle. I lost control of the vehicle and totaled it into a tree. I have contacted GM.