I WAS SLOWLY BACKING OUT OF MY GARAGE WHEN ALL OF A SUDDEN MY 2015 TRAVERSE ACCELERATED TO 40-50 MILES PER HOUR TO MY HORROR. I FELT LIKE I WAS IN THE INDY 500. THE CAR BACKED INTO A TREE IN MY FRONT YARD, THEN AT THE SAME HIGH SPEED LIFTED OFF THE GROUND AND RACED FORWARD AND CRASHED INTO 2 PARKED CARS IN MY BACK YARD. HAD THE 2 PARKED CARS NOT STOPPED ME MY NEIGHBORS FEEL I WOULD HAVE GONE INTO THE LAKE IN MY BACK YARD. MY AIR BAG DID NOT GO OFF, YET THE ONE IN THE EMPTY PARKED CAR DID GO OFF. ALL 3 VEHICLES WERE A TOTAL LOSS.