Just purchased 2011 ford edge about three mos ago 
First ford and was hoping to be a ford customer going forward but-- 
Put car in reverse and camera said contact dealership 
So I wipe camera lens off and it works for a few times and then will quit 
I wipe again (lens isn't dirty) and works again 
But even when working, lines aren't there 
I check and the menu is set for lines 
This car had 37000 miles so out of bumper to bumper warranty 
Anyone have this problem 
And, if so, how was it resolved and how much is it going to cost