{"nhtsa_id":622373,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-17","date":"2001-06-01","document_id":"SF221AC","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"ON SOME VEHICLES MANUFACTURED PRIOR TO 07/28/2000, THE REAR COVER OF THE ELECTRIC MODE MODULE (EMM) MAY BECOME DETACHED FROM THE EMM RESULTING IN THE LOSS OF ABILITY TO CHANGE THE MODE. THIS FIELD SERVICE CAMPAIGN CONSIST OF REMOVING AND REPLACING THE HVAC CONTROL ASSEMBLY. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/622373","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"STERLING","model":"ACTERRA","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":[]}