TL* THE CONTACT OWNS A 2006 CHEVROLET EQUINOX. THE CONTACT STATED THAT ONLY COLD AIR WOULD BLOW FROM THE CIRCULATION VENTS WHEN THE HEATER WAS ENGAGED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR INSPECTION WHERE THE CONTACT WAS ADVISED THAT THE BLENDER DOOR HAD FAILED AND WOULD NOT ALLOW HEATED AIR TO BLOW THROUGH THE VENTS PROPERLY. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT CONTACTED TO REPORT THE FAILURE. THE FAILURE MILEAGE WAS 50,000. UPDATED 3/21/11 *CN THE CONSUMER STATED DURING THE WINTER, THE DEFROSTER/DEFOGGER STOPPED WORKING. THE NEXT DAY, THE HEAT STOPPED WORKING AND ONLY COLD AIR WAS BLOWING OUT OF THE VENTS. UPDATED 04/27/11