TL*THE CONTACT OWNS A 2002 BUICK RENDEZVOUS. WHILE BACKING OUT OF THE DRIVEWAY AT 22 MPH, THE CONTACT'S VEHICLE WAS STRUCK ON THE PASSENGER SIDE BY ANOTHER VEHICLE. THE REAR SEAT BECAME UNHINGED AT THE TIME OF IMPACT. THE CONTACT AND ANOTHER PASSENGER WERE INJURED. THE VEHICLE WAS TAKEN TO A BODY SHOP AND THE MECHANIC COULD NOT DIAGNOSE THE CAUSE OF THE SEAT FAILURE. THE VEHICLE IS UNABLE TO BE DRIVEN. THE VIN WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 60,331.