WHILE DRIVING AT 70 MPH WEST ON THE SAM HOUSTON TOLLWAY IN HOUSTON, MY VEHICLE BEGAN TO VIBRATE AND MY LEFT REAR TIRE APPEARED TO BLOW OUT. I LOST CONTROL SWERVED LEFT, THEN SWERVED RIGHT AND HIT THE CONCRETE BARRIER. THE TREAD ON THE TIRE DAMAGAED MY LEFT REAR QUARTER PANEL AND BUMPER, AND THE IMPACT WITH THE BARRIER DAMAGED MY RIGHT REAR QUARTER PANEL AND BUMPER. THE TIRE STAYED INFLATED, BUT THE TREAD COMPLETELY CAME OFF.( DOT NUMBER: TIRE SIZE: 235/75/15 )