{"nhtsa_id":600215,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-04-29","date":"1998-01-01","document_id":"731104","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"INSUFFICIENT HEATER PERFORMANCE IN EXTREME COLD WEATHER. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/600215","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"VENTURE","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_chevrolet_venture"]},{"make":"OLDSMOBILE","model":"SILHOUETTE","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_oldsmobile_silhouette"]},{"make":"PONTIAC","model":"TRANS SPORT","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_pontiac_trans-sport"]}],"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":[]}