TL* THE CONTACT OWNS A 2005 PONTIAC GRAND PRIX. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH WITH THE HEATER ACTIVATED, A STRONG BURNING ODOR AND A MASSIVE AMOUNT OFF WHITE SMOKE SUDDENLY EMITTED THROUGHOUT THE VEHICLE. THE CONTACT DROVE TO A NEARBY SERVICE STATION, WHERE THE FIRE DEPARTMENT EXTINGUISHED A FIRE UNDERNEATH THE FRONT PASSENGERS SIDE INSTRUMENT PANEL AREA. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 83,300.