NHTSA Complaint #10723160 — 2011 BUICK ENCLAVE

EVER SINCE I BOUGHT THIS VEHICLE IT ROLLS BACKWARDS WHEN IN PARK.,I TOLD THE DEALER ABOUT IT AND THEY SAY IT'S COMMON. WHAT EVER THAT MEANS. I PUT UP WITH THIS UNTIL NOW THAT I AM PARKING IT IN A SMALL GARAGE AND WHEN I PARK IT IT ROLLS BACK AND THE OVERHEAD DOOR HITS THE BUMPER AND FLIES BACK OPEN. ONE TIME I PARALLEL PARKED ON A INCLINE AND IT ROLLED BACK INTO THE CAR PARKED BEHIND ME.LUCK FOR ME NO REAL DAMAGE. GLAD I LIVE IN FLORIDA WHERE THERE ARE NOT TO MANY HILLS TO PARK ON. BUT EVERY TIME I GO ON VACATION IT GETS MORE AND MORE DANGEROUS. THERE HAS TO BE SOMETHING THAT CAN BE ADJUSTED OR TIGHTENED UP TO STOP THIS, PLEASE RESPOND TO MY PROBLEM AS TO WHAT CAN BE DONE.