I have a 2012 Yukon Denali. A couple of days ago I started having issues with the radio and the touchscreen. At first, it would not let me change any function on the touchscreen and all I had to do was turn the car off let it sit a minute, turn it back on and everything was good. Now it seems to have gotten a lot worse. The touchscreen is permanently frozen on the screen and none of the options work when trying any function. In addition, none of the buttons on the left or right side work at all (navigation, destination, source, menu or favorites). The power button also does not turn off the radio. I can change the source and volume from the steering wheel but cannot see what options I am selecting since the screen is frozen. It seems to turn on and off during the night so I disconnected the battery
last night so it would not drain the battery. I also noticed the dome light does not turn on anymore when opening the door. Any thoughts?
JA: Have you checked the vehicle's manual for this?
Customer: I have not.
JA: What is the model of your '12 GMC?
Customer: Yukon Denali SUV
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Just the battery. Only disconnected the positive cable.
JA: Anything else you think the mechanic should know?
Customer: No, otherwise perfect condition.