Component
ENGINE
Manufacturer
BMW of North America, LLC
What Happened
Your vehicle's engine management system is responsible for controlling the performance of your engine. In certain 2020-2021 BMW models, this system could malfunction and disable the electronic braking assist feature.
Risk if Unfixed
If this happens, you'll lose the electronic assistance that helps you stop your vehicle smoothly. You'll still have full mechanical braking available, but it could be more difficult to stop, especially on slippery roads or in emergency situations.
Free Fix
Your BMW dealer will update the engine management software to fix the issue, and this repair is completely free. You should schedule the update as soon as you receive the recall notice.
Show original NHTSA language
Original — What Happened
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.
Original — Risk if Unfixed
Loss of braking assist can increase the risk of a crash.
Original — 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.
View full recall details →
Repairs are free at any authorized dealer. Find a dealer →