WHILE THE CAR WAS RUNNING IN MY GARAGE AND THE FRONT DRIVER SIDE DOOR CLOSED, I BELIEVE I PUT IT IN REVERSE THEN WENT TO OPEN THE FRONT DOOR TO SEE IF MY DAUGHTER WAS TIGHTENED IN HER CAR SEAT, THE CAR DIDN'T MOVE. I AM NOT SURE IF I PUT IT BACK IN PARK BUT AFTER I TOOK MY FOOT OFF THE BRAKE, IT DIDN'T MOVE. AFTER A FEW SECONDS AND MY FEET AND BODY COMPLETELY OUT OF THE CAR, IT STARTED TO GO BACK AND ALMOST RAN ME OVER. LUCKILY I JUMPED BACK IN THE VOLVO TRUCK AND THE DOOR CRASHED INTO THE GARAGE. THIS IS A BRAND NEW TRUCK AND HAS BEEN IN THE SHOP WITH SOME RECALLS ON THE COMPUTER SYSTEM A FEW WEEKS PRIOR. THE COMPUTER SYSTEM HAS SHUT DOWN SEVERAL TIMES WHILE DRIVING AND I BELIEVE THE LONG DELAY IN GOING BACK MIGHT HAVE TO DO WITH SOMETHING WITH THE ELECTRONICS/MOTOR. THERE IS NO WAY ONE SHOULD BE ABLE TO COMPLETELY GET OUT OF A CAR WITHOUT KNOWING IT IS IN GEAR.