TL* THE CONTACT OWNS A 1994 CHEVROLET SILVERADO 2500 WHICH WAS HITCHED TO A 2011 DUTCHMEN RUBICON TRAILER. THE CONTACT STATED THE FURNACE EXHAUST DUCT WAS NOT INSTALLED DURING PRODUCTION AND THE EXHAUST FUMES ENTERED THE VEHICLE. CURRENTLY THE VEHICLE WAS BEING INSPECTED BY AN AUTHORIZED DEALER. THE CONTACT HAD POTENTIAL HEALTH CONCERNS RELATED TO THE CARBON DIOXIDE. THE MANUFACTURER WAS NOT NOTIFIED OF THE DEFECT. THERE WAS NO FAILURE MILEAGE.