{"nhtsa_id":606228,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-08-13","date":"1999-06-01","document_id":"8373","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"SUBJECT REGRDING TEMPERATURE CONTROL WIRES REVERSED ON THE AUXILIARY HEATER / VENTILATION / AIR CONDITION (HVAC) UNIT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/606228","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"ARGOSY","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"FREIGHTLINER","model":"CENTURY","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"FLD","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}