TL* THE CONTACT OWNS A 2007 MERCEDES BENZ GL450. THE CONTACT STATED WHILE DRIVING AT AN UNKNOWN SPEED, THE SEAT HEATERS OVER HEATED CAUSING THE DRIVER'S SEAT TO CATCH ON FIRE. THE CONTACT SUFFERED FROM BURNS. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 68,690.