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Data through Oct 2026
Campaign 21V-598

During engine start, the engine management software may cause loss of braking assist

View NHTSA filingAll BMW campaigns
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

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.

Source: NHTSA ODI recalls file, campaign 21V598000. Text as published by NHTSA.
Vehicles covered

7 product lines are covered

Owner complaints filed with NHTSA about engine and cooling on these vehicles: 86, of which 6 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 21V-598
MakeModelModel yearsComplaints on this component
BMW540I20202
BMW745LE2020 to 20210
BMWM340I202042
BMWX3202026
BMWX42020 to 20213
BMWZ42019 to 20214
ToyotaSupra2020 to 20219
Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.