DURING A FRONT END CRASH SIGNIFICANT ENOUGH TO TOTAL THE CAR, THE DRIVER'S AIR BAG DID NOT PROPERLY DEPLOY. UPPER PART OF PLASTIC HOUSING DID NOT COME OFF, ALLOWING BAG TO ONLY COVER LOWER PART OF DRIVER'S BODY AND PERMITTING HEAD TO STRIKE STEERING WHEEL. FORTUNATELY, NO SERIOUS INJURY WAS SUSTAINED. *AK