{"nhtsa_id":10146839,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-05","date":"2016-09-01","document_id":"B611816","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"\"DRIVETRAIN MALFUNCTION & SME FC 21F0E3. Red Check Control message (CCM) \" Drive: Check as soon as possible\" Fault Code 21F0E3 \"High-voltage electrical system: Insulation resistance below threshold (fault)\" stored in the battery management electronics (SME) Extreme moisture in the high-voltage battery may lead to sporadic isolation faults.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10146839-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10146839-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10146839","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"I8","year_from":2014,"year_to":2017,"match":"exact","vehicle_ids":["2014_bmw_i8","2015_bmw_i8","2016_bmw_i8","2017_bmw_i8"]}],"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":[]}