I WAS BACKING OUT OF A PARKING SPACE SUDDENLY AND FOR NO APPARENT REASON THE MY CAR SPED UP.MY BREAK DID NO STOP MY CAR. I WAS FINALLY ABLE TO STOP MY CAR BY PUTTING INTO PARK. THE STOP WAS SO ABRUPT THAT I DIDN'T REALIZE I HIT ANYTHING. THIS SAME SCENARIO HAPPENED ABOUT TWO WEEK AGO, EXCEPT I DIDN'T HIT ANYTHING