TL*THE CONTACT OWNS A 2003 BUICK RENDEZVOUS. THE CONTACT STARTED THE VEHICLE AND THE HEATER WAS ACTIVATED WITH A BURNING ODOR. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER. THE FAILURE WAS CONTRIBUTED TO A MELTED CABLE CONNECTED TO THE HEATER AND THE AIR CONDITIONER. THE TECHNICIAN REPLACED THE HEATER MODULE AND CABLE. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THERE WERE NO RECALLS AND WAS UNABLE TO PROVIDE FURTHER ASSISTANCE. THE CURRENT MILEAGE WAS 65,500. THE FAILURE MILEAGE WAS 65,373.