IN REGARDS TO: HEATED / COOLED SEAT INOPERATIVE - KEYWORDS CLIMATE CONTROL COOL COOLED DRIVER FRONT HEAT HEATED INOPERATIVE INTERMITTENT LEFT MODULE PASSENGER RIGHT - (MAR 18, 2008) SUBJECT:HEATED/ COOLED SEAT INOPERATIVE MODELS:2006- 2008 BUICK LUCERNE W/ RPO KB6 2006- 2008 CADILLAC DTS W/ RPO KB6 I HAD MY HEATED/COOLED SEAT MODULE REPLACED IN AUGUST 2013. THROUGH THE WINTER MY HEATED SEATS WORKED FINE. TODAY I TURN ON MY SEAT HEATERS ONLY TO HEAR A CLICKING NOISE COMING FROM UNDER THE PASSENGER SEAT FOLLOWED BY PUFFS OF WHITE SMOKE. I QUICKLY TURNED THE CAR OFF AND DISCONNECTED THE BATTERY. UPON VISUAL INSPECTION OF THE AREA WHERE THE SMOKE CAME FROM. I FOUND THE MODULE MELTED TO THE CONNECTOR SO MUCH SO I HAD TO REMOVE THE RELAY FOR THE SEAT MODULE. THIS FIRE COULD HAVE GROWN DANGEROUS VERY QUICKLY. I KNOW A NUMBER OF FELLOW CADILLAC/BUICK OWNERS THAT THIS HAS HAPPENED TO. IF GM DOES NOT RESOLVE THIS ISSUE WITH A RECALL THERE WILL LIKELY BE LEGAL ACTION TAKEN. *JS