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Mercedes-Benz software error in the radar sensor control unit may impair the functionality of the Active Brake Assist.

NHTSA campaign 19V-540 · Reported July 19, 2019 · 1,957 vehicles affected

AFFECTED MODELS
Mercedes-Benz AMG GT, C-Class, CLS-Class, E-Class, GLC-Class, GLE-Class and S-Class
VEHICLES AFFECTED
1,957
REMEDY
MBUSA will notify owners, and dealers will update the radar sensor control unit software, free of charge.
COST
Free

The short version

Mercedes-Benz USA, LLC. reported a problem with the sensing system radar. Here is what owners need to know.

WHAT

A software error in the radar sensor control unit may impair the functionality of the Active Brake Assist.

WHY IT MATTERS

An impaired Active Brake Assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.

WHAT TO DO

MBUSA will notify owners, and dealers will update the radar sensor control unit software, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 19V-540.

YEAR RANGEMODEL
2019Mercedes-Benz AMG GT
2019Mercedes-Benz C-Class
2019Mercedes-Benz CLS-Class
2019Mercedes-Benz E-Class
2020Mercedes-Benz GLC-Class
2020Mercedes-Benz GLE-Class
2019Mercedes-Benz S-Class

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 Mercedes-Benz USA, LLC. or the National Highway Traffic Safety Administration.