CarRecallWatch- Component
- ENGINE
- Problem
- 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.
- Risk
- 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.
What this recall means for you
The engine management software in certain vehicles may cause a loss of braking assist during engine start. When this happens, the brakes still work, but the power assist that makes them easier to press is temporarily unavailable, so the driver must apply much more force to stop.
Loss of braking assist can increase the risk of a crash. Owners should be aware of this issue, especially when starting the vehicle and pulling away.
The repair is free. Authorized dealers will update the engine management software at no charge. Owner notification letters were mailed on September 17, 2021. You can also contact BMW customer service at 1-800-525-7417, and check your vehicle identification number (VIN) for open recalls.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| BMW 540i | 2020 |
|---|---|
| BMW 745LE | 20202021 |
| BMW M340I | 2020 |
| BMW X3 | 2020 |
| BMW X4 | 20202021 |
| BMW Z4 | 201920202021 |
| Toyota Supra | 20202021 |