MY SON WAS DRIVING FORWARD UP A HILL. WHILE DRIVING THE CAR STARTED ROLLING BACKWARDS WHILE IN DRIVE GEAR. THEN WHILE THE VEHICLE DECIDED TO ROLL BACKWARDS IN DRIVE GEAR HE WAS UNABLE TO STOP. SINCE MY SON WAS UNABLE TO STOP HE PUT THE CAR IN PARK THE VEHICLE STILL CONTINUE TO ROLL BACKWARDS. AS A RESULT MY SON JUMPED OUT OF THE VEHICLE AND THE VEHICLE ROLLED DOWN THE HILL AND HIT A TREE AND BOULDERS. HAD THE VEHICLE TOWED TO THE DEALERSHIP AND THEY FOUND NOTHING WRONG. HOWEVER A WITNESS SEEN WHAT WAS HAPPENING TO MY SON IN DISBELIEF. THIS VEHICLE IS VERY UNSAFE FOR ANYONE TO DRIVE,