TL* THE CONTACT OWNS A 1999 CHEVROLET SILVERADO 1500. THE CONTACT STATED THAT HE QUICKLY APPLIED THE BRAKES WHILE DRIVING 55 MPH AND THE FRONT DRIVER'S SEAT DISCONNECTED FROM ITS SEAT TRACKS. THE CONTACT SUFFERED MINOR BRUISING ON HIS KNEES AS A RESULT. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE CONTACT WAS INFORMED THAT THE PLASTIC PARTS ON THE SEAT ADJUSTER FRACTURED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 120,000. UPDATED 02/17/12 *BF THE DEALER INFORMED THE CONSUMER IT WOULD COST $ 816.OO TO FIX THE PROBLEM. UPDATED 02/22/12