A 2003 PONTIAC MONTANA WAS IN A PARKING LOT. PEOPLE SITTING IN DRIVER'S SEAT AND FRONT PASSENGER SEAT. THE IGNITION WAS ON BUT THE CAR WAS STILL IN PARK. WITHOUT ANY WARNING, BOTH SIDE AIR BAGS DEPLOYED, CAUSING SOFT TISSUE INJURY TO DRIVER'S LEFT LOWER RIB CAGE. THERE WERE NO OTHER CARS INVOLVED; THERE WAS NO CONTACT WITH ANY OTHER OBJECT. *TR