Sometimes when I put the truck in reverse, the messege center says to check the backup sensors, and it doesn't work. BUT sometimes it works just fine. Has anyone heard of this problem? If so, what can be done to fix it?

 

I am having the same issue with my 2008 KR Expedition. I have had the camera replaced once and the mirror replaced 2 times, only to stillhave distortion in the image in the mirror? What in the world is going on and why can't they fix it?[:@]