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BMW during engine start, the engine management software may cause loss of braking assist.

NHTSA campaign 21V-598 · Reported August 2, 2021 · 50,024 vehicles affected

AFFECTED MODELS
BMW 540i, 745Le, M340i, X3, X4, Z4 and Supra
VEHICLES AFFECTED
50,024
REMEDY
Dealers will update the engine management software, free of charge.
COST
Free

The short version

BMW of North America, LLC reported a problem with the engine. Here is what owners need to know.

WHAT

During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.

WHY IT MATTERS

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

WHAT TO DO

Take it to a dealer — they will update the engine management software, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 21V-598.

YEAR RANGEMODEL
2020BMW 540i
2020–2021BMW 745Le
2020BMW M340i
2020BMW X3
2020–2021BMW X4
2019–2021BMW Z4
2020–2021Toyota Supra

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

Not affiliated

MyAutoRecalls is not affiliated with BMW of North America, LLC or the National Highway Traffic Safety Administration.