TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT SMELLED BURNING PLASTIC. THE VEHICLE BECAME FILLED WITH THE ODOR. THE DEALER DIAGNOSED THAT THE CONNECTOR MODEL, BLOWER SWITCH, AND HVAC UNIT MELTED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 111,000.