My camera got water in it last summer. The camera was flickering and eventually went out all together. They replaced mine with an "Upgraded" camera. I have not had the issue since. It was a fight with the dealer though because they wanted my car multiple times and refused a loaner. I called the preferred line and they at least ordered the part and I stopped in for them to replace it. :|This came out recently in regards to malfunctioning rear cameras.
See attached text.