Endurante221b

It's been really cool reading how much care and attention to detail you've put into your truck. Your steady progress and persistence has been a great read! Keep up the good work!

I am in no way implying that this is your vehicle's specific problem and/or solution, but I am posting this for general awareness and information purposes. This is just the information I received from the service report given to me after the radio display fix.

Just got my truck back (2016 Chevrolet Silverado LT). Waited 11 days to get it back. The majority of those days were spent waiting for the HMI module to get to the dealership. Turns out that my dealership has had to deal with this issue before; my specific issue was that the radio display would turn off and on and my volume knob and power button would not function and the radio would sometimes keep playing even when the screen was off. Sometimes I could control the radio stations and volume with the steering wheel buttons that control them though. When I turned it into the dealership at first though, they did tell me that it was possibly an update issue but just to make sure, they would go ahead and take the appropriate steps to diagnose the source of the cause. The technician (not the help desk) had to call GM over the phone himself to ask for a replacement of the HMI module. Apparently, this was a part that had to be approved for order by the dealership's manager as well. Thankfully though, it all went smoothly. When the part arrived, they said they had it installed the same day. I don't like the waiting game, but I am grateful for a functioning radio display that allows me to use my backup camera when I need it instead of having to hope for it to turn on when I go in reverse. Bluetooth works as good as new, I have control of the display functions again, and all my radio stations remained intact as well, lol Hope this information will help.