Happens about 50% of the time. Put it in reverse, back up camera appears on the screen, then turns off after a few seconds and screen goes to sensors-only view. After several seconds, the camera may or may not return before I am finished reversing. Is there a hard reset for the screen I could try?

 

I had a similar issue with the sensors after my hitch was installed. It turns out there was a loose connection and the sensors would turn off after a few seconds but the camera would stay on (opposite of what you're seeing, but similar).
I would have service check the connections.

 

Same issue, camera cost not worth the price and I never use it. How to cancel the warning completely and forever?