i have a 2017 denali with some of the same issues the information screen will freeze up and nothing i do short of turning the truck
off will reset it so i cannot use any of the touch controls the steering wheel controls still work but that limits function
I've tried the onstar button reset as noted but i guess I'm off to the local dealer for a diagnostic ******
also CarPlay is totally intermittent it seems like a ground issue or a voltage drop as the screen toggles back and forth for the menu screen items anyone else had this
7B063A03-B125-4F34-9EC2-D7EF8B31C9E8.mov
