Taking in my 2019 GMC Sierra Denali for the infotainment center going black. It's been 2 1/2 weeks with nothing no radio, nav, phone or back up camera's on either the screen or the steering wheel. Talked to service writers at 3 different dealerships to see if anyone knew about the black screen, nope never heard of it. Called a fourth and bingo they have heard of it. Per the service writer "just so you aware it will be over a $1,000 to fix it" doesn't know what the problem is but it will be over $1,000 to fix it. Are you kidding me????
I read through the comments and tried the things that worked for others checked the fuses, held down the power for the radio and disconnected the battery which lead to other issues most resolved themselves but the lights on the radio controls stay on. Came back outside and checked the lights stayed on 3 hours with the truck turned off so I pulled that fuse out. Don't want have to buy another battery too.
The software updates seem to be a common issue updating the HMI firmware or the V155 update for the 2021 models.
Had my 2006 Chevy 2500hd Duramax for 16 years until it was stolen. Didn't need the diesel anymore so I bought this truck seems to be a piece of crap having emission equipment issues and now the black screen. Regrets.
