# NHTSA recall 21V598000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

- Published by: NHTSA \(United States\)
- Campaign number: 21V598000
- Manufacturer: BMW of North America, LLC
- Reported: 2021\-08\-02
- Owners notified: 2021\-09\-17
- Component: ENGINE
- Units potentially affected: 50024
- Part numbers: Software Issue \- No Part Number

## What is wrong

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 can happen

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


## The 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.


## Remedy progress the manufacturer reported

- Report: Annual report 3, for 2025 quarter 3 to 2026 quarter 2
- Filed with NHTSA: 2026\-07\-30
- Vehicles in the campaign: 50024
- Reported remedied: 47785 \(95%\)
- Reported unreachable: 337
- Reported removed: 174

These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 2, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026\-10\-19.

## Vehicles this campaign lists

- [2020 BMW 540I](/makes/bmw/540i/2020/recalls.md)
- 2020 BMW 745LE
- 2021 BMW 745LE
- [2020 BMW M340I](/makes/bmw/m340i/2020/recalls.md)
- [2020 BMW X3](/makes/bmw/x3/2020/recalls.md)
- [2020 BMW X4](/makes/bmw/x4/2020/recalls.md)
- [2021 BMW X4](/makes/bmw/x4/2021/recalls.md)
- [2019 BMW Z4](/makes/bmw/z4/2019/recalls.md)
- [2020 BMW Z4](/makes/bmw/z4/2020/recalls.md)
- [2021 BMW Z4](/makes/bmw/z4/2021/recalls.md)
- [2020 TOYOTA SUPRA](/makes/toyota/supra/2020/recalls.md)
- [2021 TOYOTA SUPRA](/makes/toyota/supra/2021/recalls.md)

## Bulletins for the same vehicles and component

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

- [B110426](/bulletins/11035500.md), 2026-08-03, Service bulletin
- [B010921](/bulletins/11035498.md), 2026-08-03, Warranty extension
- [B010324](/bulletins/11035497.md), 2026-08-03, Warranty extension
- [B010324](/bulletins/11032731.md), 2026-05-18, Warranty extension
- [B063025](/bulletins/11017562.md), 2025-05-02, Other
- [B062525](/bulletins/11016470.md), 2025-04-04, Other
- [B011524](/bulletins/11012074.md), 2024-12-31, Warranty extension
- [B010921](/bulletins/11012067.md), 2024-12-31, Warranty extension
- [B010821](/bulletins/11012066.md), 2024-12-31, Warranty extension
- [B010324](/bulletins/11008101.md), 2024-09-29, Warranty extension

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/21V598000](/v1/recalls/nhtsa/21V598000)

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