PE.00 020; CONSUMER WAS TRAVELING ABOUT 75MPH ON THE HIGHWAY AND HEARD AN EXPLOSION. HE WAS ABLE TO CONTOL VEHICLE, AND PULL OVER TO SHOULDERS. LEFT REAR TIRE TREAD SEPARATED, THERE WERE NO INJURIES. FIRESTONE, FR480 P2357515, # DOT VDHL. HE WILL CONTACT FIRESTONE.*AK ANOTHER FIRESTONE TIRE EXPERIENCED TREAD SEPARATION WHILE DRIVING 60 MPH, THE FAILURES CAUSED DAMAGE TO VEHICLE. *SLC