Try opening the tailgate then shut it back. I have had same problem in the past.Hey all, my back up camera suddenly stopped working just a few days ago. One hour it worked, the next hour it didn't. Haven't had a chance to take it in yet to have it looked at. When I put into reverse, I get the check surroundings message on top of a blacked out screen. Has anyone out there have this happen to them before? I have the 8.4 with GPS. Thanks in advance.