Started my 2016 Tahoe up this morning and the radio/GPS/control screen went blank. After a few seconds, what you see in the image below popped up and won't go off. The radio still works through the controls on the steering wheel, but nothing on the console works. No reverse camera, WiFi, or Bluetooth connection, either. I went behind the glove box and "jiggled the blue wire" on the HMI module, as instructed in several places online. Nothing. Disconnected the battery for 10 minutes. Nothing.
I'm not too keen on taking it to the dealership to have the thing repaired, but I guess I will if I have to. Before I do that, I figured I'd ask if anyone here has any bright ideas.

I'm not too keen on taking it to the dealership to have the thing repaired, but I guess I will if I have to. Before I do that, I figured I'd ask if anyone here has any bright ideas.
