TL* THE CONTACT OWNS A 2003 CHEVROLET TAHOE. THE CONTACT STATED THAT WHILE TRAVELING APPROXIMATELY 35 MPH, THE FRONT DRIVER'S SIDE SEAT WARMER WAS ACTIVATED AND AN UNEXPECTED HIGH AMOUNT OF HEAT PENETRATED THROUGH THE BACK OF THE SEAT. THE CONTACT SUSTAINED A HEAT RASH TO HER BACK. THERE WAS ALSO A SMALL BURN MARK ON THE SEAT BACK. THE VEHICLE HAD NOT BEEN DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 174,000.