{"nhtsa_id":10220144,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-15","date":"2022-05-05","document_id":"TSB004622","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"TSB: Some 2016 ? 2019 model year Mirai vehicles may exhibit a warning message, ?FC malfunction, return vehicle to dealer for service.? This message is accompanied by Diagnostic Trouble Code (DTC) P1DEF (450 FC Stack Performance). The Fuel Control Module (FCM) calibration has been revised to address this condition","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220144-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220144-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10220144","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":["P1DEF"],"topics":[],"vehicles":[{"make":"TOYOTA","model":"MIRAI","year_from":2016,"year_to":2019,"match":"exact","vehicle_ids":["2016_toyota_mirai","2017_toyota_mirai","2018_toyota_mirai","2019_toyota_mirai"]}],"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":[]}