NHTSA Complaint #11539087 — 2023 GMC SIERRA 1500

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.