{"nhtsa_id":54178,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-03-30","date":"1998-01-30","document_id":"980130183197","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SUBJECT PERTAINING TO OBD II MISFIRE MONITOR. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/54178","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"CHEROKEE","year_from":1996,"year_to":1998,"match":"exact","vehicle_ids":["1996_jeep_cherokee","1997_jeep_cherokee","1998_jeep_cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE","year_from":1996,"year_to":1998,"match":"exact","vehicle_ids":["1996_jeep_grand-cherokee","1997_jeep_grand-cherokee","1998_jeep_grand-cherokee"]},{"make":"JEEP","model":"WRANGLER","year_from":1997,"year_to":1998,"match":"exact","vehicle_ids":["1997_jeep_wrangler","1998_jeep_wrangler"]}],"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":[]}