My 2021 Silverado 2500HD did the same thing this a.m. on the way to work. Bought last July. Screen went black, radio still worked. Backup camera worked, parked the truck and the radio stayed on after turning the truck off and closing the doors. Went back out to pull the fuse 5 minutes later and everything was OK. Disappointing to hear this has been an issue for a couple of years now.