{"nhtsa_id":604295,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-04-22","date":"1999-03-01","document_id":"ITB99004","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM","mfr_system":null,"summary":"REPAIR PROCEDURES FOR THE LEFT HAND SIDE DEFROSTER GRILL. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/604295","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"INFINITI","model":"G20","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_infiniti_g20"]}],"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":[]}