- Vehicles
- 50,024
- Built between
- Not published
- Models
- 7
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 17 September 2021
- Repaired
- 94%
- Unrepaired
- 2,607
Does this affect my vehicle?
The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.
- 2020 BMW 540I
- 2020-2021 BMW 745LE
- 2020 BMW M340I
- 2020 BMW X3
- 2020-2021 BMW X4
- 2019-2021 BMW Z4
- 2020-2021 Toyota Supra
Repair progress
2,607 of 50,024 vehicles in this recall had still not been repaired as of Q2 2023.
94% repaired — 46,906 of 50,024 reported
- Owners not reachable
- 337
- Scrapped or exported
- 174
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
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.
What could happen
Loss of braking assist can increase the risk of a crash.
What gets fixed
Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021.
Parts involved
- Engine Management SoftwareSoftware Issue - No Part NumberEngine Management Software
Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.
Timeline
- Recall reported to NHTSA2 August 2021
- Owners notified17 September 2021
- Latest repair reportQ2 2023 — 94% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 2 August 2021.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owners may contact BMW customer service at 1-800-525-7417.
Official source
- Recalling manufacturer
- BMW of North America, LLC
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional 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.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.