Radio/media screen won’t turn off

[Rob256]

Radio/media screen won’t turn off, even with the key out and doors locked – 2018 Sierra SLT. bought new, Never had any problems before, but yesterday, while driving home, the radio stopped playing. I could hear the beep when changing stations and see the stations on the screen, but no sound came from the speakers.  I was able to connect my phone and play music through it. When I got home and turned the truck off, the radio/media screen stayed on.  I checked again 30 minutes later, and the screen was still on.  I had to disconnect the negative cable from the battery to get it to shut off.  Last week, OnStar said my vehicle received an update. Has anyone else experienced this issue?

 

[Snowcamo]

Ya I have.  I just leave it be and it turns off within a 30 mins or so.