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

Engine

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.

Actions

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.

Documents (15)

• Recall Acknowledgement
• Manufacturer Notices(to Dealers,etc) - BMW Recall 21V-xxx: Program Control Units (DME) - Repair Available
• Defect Notice 573 Report
• Manufacturer Notices(to Dealers,etc) - Certain 2020 2021 Model Year Supra Vehicles Potential Increased Braking Distance
• Manufacturer Notices(to Dealers,etc) - Certain 2020 2021 Model Year Supra Vehicles Potential Increased Braking Distance
• Remedy Instructions and TSB
• ISSUED Owner Notification Letter(Part 577)
• Recall Quarterly Report #1, 2021-3
• Remedy Instructions and TSB
• Manufacturer Notices(to Dealers,etc) - Dealer Letter re Certain 2020 2021 Model Year Supra Vehicles Potential Increased Braking Distance
• Remedy Instructions and TSB
• Recall Quarterly Report #2, 2021-4
• Remedy Instructions and TSB
• ISSUED Owner Notification Letter(Part 577)
• ISSUED Owner Notification Letter(Part 577)

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