OFFICIAL CAMPAIGN FILE

NHTSA campaign 21V598000

NHTSA campaign 21V598000 covers 12 published year-and-model reports from 2 makes in this index and lists 50,024 potentially affected units campaign-wide. VIN eligibility must be checked separately.

Report received August 2, 2021 · Snapshot September 21, 2026

01 / DEFECT RECORD

What NHTSA campaign 21V598000 says

NHTSA campaign 21V598000 identifies ENGINE and states that Loss of braking assist can increase the risk of a crash.

Defect 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 summary

Loss of braking assist can increase the risk of a crash.

02 / CORRECTIVE ACTION

Remedy for NHTSA campaign 21V598000

For NHTSA campaign 21V598000, the filed corrective action says: 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.

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.

Owner notification: September 17, 2021
Filing manufacturer: BMW of North America, LLC
Component groups: ENGINE

03 / PUBLISHED VEHICLES

Vehicles listed under NHTSA campaign 21V598000

RecallRoad links 12 year-and-model reports associated with NHTSA campaign 21V598000; the list reflects published source rows, not individual VIN coverage.