A CHUNK OF APPROXIMATELY 2-3" BLEW OUT OF THE SIDEWALL OF THE REAR PASSENGER TIRE. MY DAUGHTER WAS DRIVING, AND SHE LOST CONTROL AFTER THE TIRE BLEW AND HIT A TREE HEAD ON AT 45 MPH. THE VEHICLE WAS TOTALED AND MY DAUGHTER HAS MULTIPLE INJURIES, INCLUDING A FRACTURED KNEECAP, SPRAINED JAW, DISC PROTRUSIONS AT C6/C7 AND L5/S1. SHE IS HAVING HEADACHES AND FACIAL PAIN AND A BRAIN MRI WAS PERFORMED YESTERDAY. WE'LL HAVE THOSE RESULTS SOMETIME NEXT WEEK. THE TIRE WAS PURCHASED IN OCTOBER 2013, WAS 20% WORN AND HAD NO SIGNS OF INFLATION PROBLEMS OR SIGNS OF ANYTHING STRIKING THE TIRE. IT WAS A GOODYEAR TIRE. *TR