Hi! New to this so please be understanding and respectful. I’ve had my truck in the dealership at least 4 times for this problem. They cannot duplicate or figure out why it does this. Sometimes, not always, when I turn on my 2016 C/Suburban LT, the screen will flash between clock, radio, CarPlay, navigation....whatever is open. The touchscreen is not responsive. It takes 5 or 6 restarts to get rid of it. Turn off the truck, remove all cords, open and close all doors. We have reset back to factory settings, removed all devises and even disconnected the battery after doing that. It happens all the time and makes me crazy! Any suggestions or where to take it?