{"nhtsa_id":54185,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-03-30","date":"1997-11-01","document_id":"97110197022J","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"CUSTOMER SATISFACTION CAMPAIGN ON HVAC MANUAL CLIMATE CONTROL MODE SELECTOR. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/54185","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"CENTURY","year_from":1997,"year_to":1998,"match":"exact","vehicle_ids":["1997_buick_century","1998_buick_century"]},{"make":"BUICK","model":"REGAL","year_from":1997,"year_to":1998,"match":"exact","vehicle_ids":["1997_buick_regal","1998_buick_regal"]}],"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":[]}