WHILE DRIVING THE VEHICLE IN TOWN ON A CITY STREET AT APPROXIMATELY 35 MPH, WITH THE AC ON AND THE BLOWER IN THE HIGH POSITION, THE BLOWER STARTED TURNING OFF INTERMITTENTLY. A SMELL OF BURNING PLASTIC WAS NOTED AND THE BLOWER COMPLETELY SHUT DOWN. THE COMPRESSOR FOR THE AC CONTINUED TO CYCLE ON AND OFF. THE OTHER LOWER SETTINGS FOR THE BLOWER DID NOT WORK EITHER. IT WAS FOUND THAT THE PLUG THAT GOES TO THE RESISTOR PACK NEXT TO THE BLOWER HAD A BADLY-BURNED CONTACT FOR THE GROUND WIRE GOING TO THE BLOWER. THE PLASTIC AROUND THE PLUG WAS MELTED AND BURNED AND THE ELECTRICAL CONNECTOR WAS MELTED OFF. A SERIOUS FIRE COULD HAVE POTENTIALLY STARTED UNDER THE DASH DUE TO THE INTENSE HEAT AND ARCING OF THE ELECTRICAL CONTACTS PUTTING ME AND MY FAMILY IN DANGER. DOING RESEARCH ON THE NHTSA WEBSITE, THIS SEEMS TO BE A COMMON PROBLEM WITH 2005 CHEVROLET SILVERADO TRUCKS. THERE SHOULD BE A RECALL ON THIS, BUT I DO NOT FIND ONE.