PEOO O20 ; CONSUMER WAS TRAVELING 65MPH ON HIGHWAY AND HEARD A NOISE, AND IMMEDIATELY AFTERWARDS REAR END STARTED SWERLING. WAS ABLE TO PULL OVER TO SHOULDER, AND NOTICED THAT PASSENGER'S SIDE REAR TIRE TREAD SEPARATED FROM RIM. FIRESTONE, WILDERNESS #AT, P235 70 R16, DOT NUMBER W2081PT 477 . WILL CONTACTED FIRESTONE TODAY. THERE WERE NO INJURIES. *AK