CONSUMER COMPLAINED ABOUT A TIRE DEFECT. THESE TIRES CAME WITH THE PURCHASE OF THE VEHICLE. AMERITRAC P255/70R16. THE TREAD CAME COMPLETELY OFF THE TIRE BUT THE TIRE NEVER WENT FLAT. VEHICLE BEGAN TO PULL TO THE LEFT AND SPUN INTO A WALL. THE VEHICLE WAS GOING ABOUT 50 MPH WHEN IT HIT THE WALL AND THE AIR BAGS FAILED TO DEPLOY. PROVIDE FURTHER DETAILS.