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Car Safety DB

NHTSA Campaign Number

21V598000

ENGINE

Reported to NHTSA: August 2, 2021

Key Takeaways

  • Recall 21V598000 currently maps to 8 tracked vehicle-year pages across 2 makes.
  • This page summarizes the official defect description, safety consequence, and remedy text published by NHTSA for this campaign.
  • This is a campaign-level lookup, not a VIN-level clearance result. Use a VIN lookup before assuming your specific vehicle is still open.

Useful Next Steps

Check a VIN for an open recallRead what to do after a recall noticeBrowse more engine recallsOpen an affected vehicle page

Defect Description

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.

Safety 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.

What This Recall Page Shows

This page summarizes a single NHTSA recall campaign, including the defect description, safety consequence, and manufacturer's remedy. The affected vehicles listed below are the make/model/year combinations tracked in our database — this is not a VIN-specific result. To check whether your individual vehicle is covered by this recall, enter your 17-digit VIN at nhtsa.gov/recalls. Click any vehicle below to view its full safety profile.

VIN recall lookup guideWhat to do after a recallMore engine recalls

Affected Vehicles (8)

YearMakeModel
2020BMWX3
2020BMWX4
2021BMWX4
2019BMWZ4
2020BMWZ4
2021BMWZ4
2020ToyotaSupra
2021ToyotaSupra

Browse Affected Vehicles

Affected Makes

BMWToyota

Affected Models

BMW X3BMW X4BMW Z4Toyota Supra

Affected Make + Year Views

2021 BMW2021 Toyota2020 BMW2020 Toyota2019 BMW

Affected Years

202120202019

Related Engine Campaigns

These campaigns share the same broad recall component family, so they are useful if you want to compare how similar issue types appeared across other vehicles and time periods.

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This recall information is from NHTSA campaign 21V598000. This site is not affiliated with NHTSA. Contact your dealer or call NHTSA's Vehicle Safety Hotline at 1-888-327-4236 for more information.

Data synced from NHTSA on May 4, 2026