I WAS ON MY WAY HOME FROM WORK 1/21/2007 @07 :40 AM DOWN I 75 SOUTH @70-75 MPH WITH NO TRAFFIC ON THE ROAD NO ITEMS IN THE ROAD AND MY DRIVERS SIDE AIRBAG WENT OFF. I WAS DRIVING IN THE SLOW LANE AND KEPT MY HANDS ON THE WHEEL AND PULLED OVER TO THE SIDE. THE AIRBAG HIT MY ARM. I HAVE A LEFT UPPER ARM CONTUSION AND LEFT NECK/SHOULDER SPRAIN PER MY DOCTOR . NOTHING HIT MY CAR. THE NEXT DAY MY CAR WAS TOWED TO THE DEALER IN ANN ARBOR AUTOMOTIVE . WHEN THE MAN PUT MY CAR ON THE TOW TRUCK HE NOTICED A DENT UNDER THE CAR AT THE GAS TANK. THAT DID NOT HAPPEN ON 1/21/07 I DID NOT HEAR OR SEE ANYTHING. THAT SHOULD NOT SET A SIDE AIRBAG OFF. THE DEALER STATEMENT IS THAT WHAT CAUSED IT. WHICH THEY ARE FULL OF IT. THE TOLD ME IT IS GOING TO COST $5500.00 TO FIX. I CONTACTED HYUNDAI CONSUMER AFFAIRS AND AWAITING TO HEAR BACK FROM THEM. THIS IS VERY UNSAFE AND THIS CAR SHOULD NOT BE ALLOWED ON THE ROAD IF AIRBAGS DEPLOY FROM A ROCK ECT HITTING UNDER THE CAR. I FIND IT HEARD TO BELIEVE THAT THEY ARE THAT SENSITIVE. *JB