WHILE TRAVELING NORTHBOUND ON I-10 NEAR BLACK CANYON CITY, AZ, THE TREAD ON THE RIGHT REAR TIRE SEPARATED, CAUSING THE DRIVER TO LOSE CONTROL OF THE VEHICLE. THE VEHICLE ROLLED. WEATHER CONDITIONS WERE CLEAR, TRAFFIC WAS LIGHT, AND THERE WERE NO "UNUSUAL CIRCUMSTANCES". NO CITATIONS WERE ISSUED FOR ANY FAULT ON THE DRIVER'S PART. THE DRIVER WAS THROWN FREE OF THE VEHICLE. I REMAINED PARTIALLY IN THE VEHICLE AND PARTIALLY PINNED UNDER THE VEHICLE. THE DRIVER SUFFERED A FRACTURED PELVIS. MY INJURIES WERE EXTENSIVE; THE MOST SERIOUS AND DEBILITATING WAS A CLOSED HEAD INJURY. PLEASE CONTACT ME FOR ADDITIONAL DETAIL. I WOULD VERY MUCH LIKE TO PARTICIPATE IN THE INVESTIGATION AND ANY ACTION THAT IS TAKEN TO RECTIFY THIS LONG STANDING PRODUCT DEFECT. THE TIRE WAS INSPECTED BY AN EXPERT AND DETERMINED TO BE DEFECTIVE.( DOT NUMBER: )