I had this issue of the screen not turning on. I dealt with it for many months. It would come on after stopping, turn ignition off, back on and it would work. I finally took it in one morning after it didn't turn on. I drove straight to dealer and left X running. Had the service tech come out and see that it was not working. He ordered me a new one on the spot and scheduled to replace it when the new screen came in. No probs since replacement.