ON 2/4/15, MY 2012 SANTA FE HAD AN UNEXPECTED SUDDEN ACCELERATION, RESULTING IN EXTENSIVE DAMAGE TO THE VEHICLE AND ME, THE DRIVER. I HAD BACKED INTO MY PARKING SPACE AT WORK FACING A BUSY ROAD AND WHILE RE-POSITIONING VEHICLE, GOING FROM REVERSE TO DRIVE, WITH MY FOOT ON THE BRAKE, THE CAR PROPELLED FORWARD, GOING THROUGH A 4 FOOT SNOW BANK AND INTO A STONE WALL. THE DRIVER AIR BAG DEPLOYED AND HIT ME DIRECT IN CENTER CHEST. ALL OF THIS OCCURRED IN ABOUT 2 SECONDS AND I HAD MY FOOT DOWN HARD ON THE BRAKE AND WAS ATTEMPTING TO PUT MY LEFT FOOT ON THE EMERGENCY BRAKE. *JS IT WAS A MIRACLE THAT I DID NOT HIT A PEDESTRIAN OR OTHER VEHICLE, WHICH WHEN I LATER PROCESSED THIS, WAS THE MOST FRIGHTENING PART.. AFTER GOOGLING THIS COMPLAINT, I WAS STUNNED TO SEE HOW MANY PEOPLE HAVE HAD SIMILAR INCIDENTS.