I STARTED MY CAR AND PUT IT IN REVERSE. I HAD MY FOOT ON THE BRAKE AND PUT IT IN REVERSE. THE CAR LURCHED VERY HARD BACKWARDS. THE CAR HIT A POLE THAT HOLDS UP THE COVERED PARKING. I HAD MY FOOT ON THE BRAKE HARD AND IT WAS STILL TRYING TO MOVE AND I PUT IT IN NEUTRAL AND IT REVVED A LOT. THEN I TURNED IT OFF. IT HAS DONE THIS A COUPLE OF TIMES BUT NOT TO THIS EXTENT.