THE REAR CAMERA DOES NOT COME ON IMMEDIATELY AND SOMETIMES I HAVE BACKED UP20-40 FT BEFORE IT ENGAGES. IT IS A PROBLEM AND I RECENTLY WAS HIT BY ANOTHER CAR WHEN I WA BACKING UP BECAUSE I DIDN'T SEE THEM COMING AT ME. THIS HAS BEEN A PROBLEM SINCE THE BEGINNING OF MY NEW CAR OWNERSHIP IN 2012. DEALERSHIP SAYS NOTHING IS WRONG WITH THE FUNCTIONING OF THE CAMERA.