I PURCHASED THIS VEHICLE AT THE END OF MAY 2017, AFTER PUTTING ON ABOUT 500 MI WITHIN 4 WEEKS, A CHECK ENGINE LIGHT CAME ON, I TOOK IT TO THE DEALERSHIP, THEY KEPT IT OVERNIGHT,LOOKED AT IT, AND CALLED THE FOLLOWING DAY & SAID THERE WAS "SOMETHING LOOSE THAT NEEDED TO BE TIGHTENED" AND THAT THE CAR WAS READY FOR PICK UP. I DROVE THE CAR AND PARKED IT IN MY GARAGE. THE FOLLOWING DAY, I TOOK THE CAR OUT, TURNED IT AROUND AND BACKED IT UP TO PARK IN FRONT OF MY GARAGE, I WAS GOING SLOWLY (UNDER 5 MPH) THE BRAKED LOCKED UP AND THE CAR ACCELERATED IN REVERSE HITTING MY GARAGE BEFORE I COULD STOP IT BY TURNING OFF THE ENGINE. I CALLED THE DEALERSHIP, BUT GOT NO RESPONSE. A FEW HOURS LATER I HAD A LUNCH APPOINTMENT. THE MAN I WAS MEETING WANTED ME TO TAKE HIM FOR A SHORT RIDE IN THE CAR, WHICH I DID. AS WE RETURNED TO THE RESTAURANT, I PULLED INTO THE PARKING SPACE SLOWLY, AND ENGAGED THE BRAKES, AGAIN THE CAR WENT INTO SUDDEN ACCELERATION, GOING OVER ARBORVITAE TREES AND INTO A NEIGHBORING PARKING LOT. THE DEALERSHIP WAS CALLED AND THE CAR TOWED. ON BOTH OF THESE OCCASIONS I WAS DRIVING SLOWLY, BOTH TIMES I HAD MY FOOT ON THE BRAKE AND FELT THEM LOCK AS THE CAR WENT INTO ACCELERATION, AND BOTH TIMES I HAD TO TURN OFF THE CAR TO GET IT TO STOP.