{"nhtsa_id":622702,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-22","date":"2001-06-01","document_id":"010138008","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE","mfr_system":null,"summary":"SOME CUSTOMERS MAY COMMENT THAT THE HVAC SYSTEM IS NOT WORKING CORRECTLY. WHEN THE CONTROL IS MOVED TO THE DOWN OR FLOOR (HEAT) POSITION, AIR CONTINUES TO FLOW FROM THE END VENTS OF THE DASH. NLM","document":null,"url":"https://open.wenmarpro.com/bulletins/622702","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":"TRACKER","year_from":1999,"year_to":2002,"match":"exact","vehicle_ids":["1999_chevrolet_tracker","2000_chevrolet_tracker","2001_chevrolet_tracker","2002_chevrolet_tracker"]}],"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":[]}