I have had the same problem here. Looking on the forum and finally someone else has had this. I have had this happen at least 2-3 times. I am in the process of trying to record it for the dealer. When it comes on the screen is blank and doesn't show the mylink /Chevy screen so might be something there?
I just Purchased my 2014 LT... Love the truck but having same issue. I have tried to duplicate the moment but can't figure it out yet. Going to make an appointment and see if the dealer can figure it out.