I PULLED INTO MY GARAGE DURING EARLY AFTERNOON AND CAME TO THE USUAL STOP FACING THE WALL. MY FOOT WAS STILL ON THE BRAKE AND I HAD NOT YET PUT THE CAR INTO PARK. SUDDENLY THE CAR LURCHED FORWARD AND HIT THE WALL WITH GREAT ENOUGH FORCE TO DEPLOY THE AIR BAG. THE BAG FRACTURED MY STERNUM IN TWO PLACES. AT THE TIME I WAS NOT AWARE OF THE PREVALENCE OF UNINTENDED ACCELERATION PROBLEMS AND DID NOT REPORT IT. THERE HAVE BEEN NO EPISODES SINCE. *TR