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Mercedes-Benz high-voltage battery monitoring system software may not alert the driver of a battery malfunction.

NHTSA campaign 23V-309 · Reported May 2, 2023 · 3,828 vehicles affected

AFFECTED MODELS
Mercedes-Benz S-Class
VEHICLES AFFECTED
3,828
REMEDY
Dealers will update the battery management system software, free of charge.
COST
Free

The short version

Mercedes-Benz USA, LLC reported a problem with the management software. Here is what owners need to know.

WHAT

The high-voltage battery monitoring system software may not alert the driver of a battery malfunction. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 305, "Electric-powered vehicles: Electrolyte Spillage and Electrical Shock Protection."

WHY IT MATTERS

A high-voltage battery monitoring system that does not alert the driver of a battery malfunction may increase the risk of an injury.

WHAT TO DO

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

Affected vehicles

These model years are included in NHTSA campaign 23V-309.

YEAR RANGEMODEL
2023Mercedes-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.