{"source":"nhtsa","country":"us","campaign":"21V598000","date":"2021-08-02","owner_notified":"2021-09-17","manufacturer":"BMW of North America, LLC","component":"ENGINE","summary":"BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles.  During engine start, the engine management software may cause loss of braking assist.  Full mechanical braking (without assist) remains available.","consequence":"Loss of braking assist can increase the risk of a crash.","remedy":"Dealers will update the engine management software, free of charge.  Owner notification letters were mailed on September 17, 2021.  Owners may contact BMW customer service at 1-800-525-7417.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.","mfr_campaign":null,"part_number":"Software Issue - No Part Number","units":50024,"completion":{"kind":"annual","report_number":3,"period_from":"2025-3","period_to":"2026-2","submitted":"2026-07-30","involved":50024,"remedied":47785,"unreachable":337,"removed":174,"remedied_percent":95,"as_of":"2026-10-19"},"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":2020,"make":"BMW","model":"540I","vehicle_id":"2020_bmw_540i","match":"exact","built_from":null,"built_to":null},{"year":2020,"make":"BMW","model":"745LE","vehicle_id":null,"match":null,"built_from":null,"built_to":null},{"year":2021,"make":"BMW","model":"745LE","vehicle_id":null,"match":null,"built_from":null,"built_to":null},{"year":2020,"make":"BMW","model":"M340I","vehicle_id":"2020_bmw_m340i","match":"exact","built_from":null,"built_to":null},{"year":2020,"make":"BMW","model":"X3","vehicle_id":"2020_bmw_x3","match":"exact","built_from":null,"built_to":null},{"year":2020,"make":"BMW","model":"X4","vehicle_id":"2020_bmw_x4","match":"exact","built_from":null,"built_to":null},{"year":2021,"make":"BMW","model":"X4","vehicle_id":"2021_bmw_x4","match":"exact","built_from":null,"built_to":null},{"year":2019,"make":"BMW","model":"Z4","vehicle_id":"2019_bmw_z4","match":"exact","built_from":null,"built_to":null},{"year":2020,"make":"BMW","model":"Z4","vehicle_id":"2020_bmw_z4","match":"exact","built_from":null,"built_to":null},{"year":2021,"make":"BMW","model":"Z4","vehicle_id":"2021_bmw_z4","match":"exact","built_from":null,"built_to":null},{"year":2020,"make":"TOYOTA","model":"SUPRA","vehicle_id":"2020_toyota_supra","match":"exact","built_from":null,"built_to":null},{"year":2021,"make":"TOYOTA","model":"SUPRA","vehicle_id":"2021_toyota_supra","match":"exact","built_from":null,"built_to":null}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":[],"url":"https://open.wenmarpro.com/recalls/nhtsa/21V598000"}