TECHNICIAN AND SERVICE ADVISOR INFORMED ME THAT A 80 PIN CONNECTOR THAT CONTROLS THE HEAD SYSTEM HAD CAUGHT ON FIRE AND FUSED TWO CONNECTORS TOGETHER. I USED THE HVAC SYSTEM ON MY WAY HOME FROM WORK AND PARKED THE VEHICLE IN THE GARAGE.IF THIS HAPPENED IN THE GARAGE IT COULD HAVE RESULTED IN A CATASTROPHIC HOUSE FIRE.