CAR WAS STOPPED ABOUT 2 FEET FROM WALL. FOOT SLIPPED OFF BRAKE ALLOWING CAR TO ROLL FORWARD, CAUSING IT TO BUMP WALL. AIR BAGS DEPLOYED AND PASSENGER SIDE AIR BAG BUSTED WINDSHIELD. PARTS/SERVICE MANAGER AT OUR LOCAL GENERAL MOTORS DEALER REMOVED BUMPER AND INSPECTED, AND HE SAW NO REASON WHY AIR BAGS SHOULD HAVE DEPLOYED. ALSO, THERE IS NO VISIBLE DAMAGE TO VEHICLE OTHER THAN AIR BAGS DEPLOYING AND BUSTED WINDSHIELD. HE CONTACTED GENERAL MOTORS AND REPORTED THIS. THEY REFUSED TO DO ANYTHING ABOUT IT AND THEY ALSO REFUSED TO SEND AN INSPECTOR. *AK