I have had the intermittent black screen saying contact dealer or whatever it says when the backup camera would not work, which was probably 80% of the time. Its a 2014 Limited I bought in 2019 and has had this issue from day one of my purchase. I tried tracing wires, checking for codes, new sync updates, taking the camera out and cleaning the connections, which did not look bad at all. I had no codes also. Nothing worked and finally I was just going to roll the dice and put a new camera in, I was not willing to bring it to the dealership and pay especially since I do all my automotive work anyways. But I figured I would try one last idea I had and that was to put a very small amount of copper antiseize on the male pins in the connector, basically by doing this it would make better electrical contact. You only want to put enough on so that it does not smoosh out all over the place and short out the pins. It worked for me. lol. Totally solved my problem, the picture is even better and I actually have a functioning backup camera. I also noticed the connector itself seems tight but there is maybe an 1/8 inch of play in it, to most people this would seem totally fine and probably is when the vehicle and camera are brand new. You could also put a ziptie on the connectors and tighten them together to help. If your camera is bad this will not make it work obviously. I hope this helps, I'm sure this will fix alot of the vehicles with this problem.
