I bought my 2020 Chevy Trail Boss in March 2020. Since then ive had my screen go dark, and the volume stay on, while the truck is off, TWICE now.
The first time, I pulled into the driveway and noticed the display was black... I coudlnt turn off the radio and it was pretty loud. I closed the door and walked into the house, trying to call Chevy dealer to see if they knew of a fix.
No one called me back. Then when I went to check on the truck about 20 min later, the radio was off. I turned the truck on and the radio came on like normal.
The second time, which was today... I was waiting for my wife to come out of a friends house and had the truck in idle, with the AC on because its hot here.
After about 15 min of waiting, she got into the truck and I got onto the fwy and noticed the display was blank, but the radio was still on. I couldnt turn down the volume and I couldnt see anything on the display.
I wanted to call OnStar to see if they can diagnose it. The OnStar button was lit green and it didnt work. I pressed it several times and it didnt work. I held it for 10 seconds, just because... and it didnt work.
Once I got home, I turned off the truck and turned it back on and the display came on like normal.
This is dangerous in my opinion... what if I needed OnStar for an emergency and it was off???
Im taking my truck in later this week, into the dealership. I need this fixed or a they better work with me on getting a new vehicle. I love my truck, but I bought this thing new and this has happened twice in 4 months. I have under 2k miles on it too.