TREAD SEPARATION ON LEFT REAR TIRE OF 2000 FORD EXPLORER CAUSED DRIVER TO LOSE CONTROL OF VEHICLE. DETREAD TIRE WAS PUT ON THE EXPLORER AS PART OF THE FIRESTONE RECALL IN SEPT. 2000. VEHICLE ROLLED SEVERAL TIMES, DRIVER SIDE LEADING. BOTH OCCUPANTS WERE BELTED. FRONT PASSENGER REMAINS IN A COMA. TIRE CONTINENTAL CONTITRAC SUV M + S 235/75 R15 ADHL EJJ 4600. *JB