MY SON HIT SLAMMED ON HIS BRAKES TO AVOID HITTING THE CAR IN FRONT OF HIM WHO HAD SLAMMED ON THEIR BRAKES, HIT A PATCH OF BLACK ICE AND SLAMMED DIRECTLY INTO THE REAR END OF THE VEHICLE IN FRONT OF HIM. ONLY THE AIR BAG BY HIS FEET WENT OFF. NONE OF THE OTHER AIR BAGS DEPLOYED. THE SEATBELT ALSO DID NOT LOCK UP IMMEDIATELY. HE SUSTAINED A CONCUSSION, LEFT SHOULDER INJURY, NECK PAIN, AND BRUISING TO HIS CHEST AND ABDOMEN FROM THE STEERING WHEEL. HE HAD TO BE TRANSPORTED TO THE HOSPITAL BY AMBULANCE. THE CAR IS TOTALED AND IS IN A SALVAGE LOT ON HOLD FOR A WEEK IN CASE YOU WANT TO LOOK AT IT.