Service bulletin NCU-2023100013

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that in certain MY 2023 S-Class (223 platform) vehicles, the battery management system software does not meet current production specifications. In this case, the vehicle may not start, or a message displays in the instrument cluster or in the customer Mercedes me Connect App stating, “possible overheating of the high voltage battery.” MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the battery management system control unit software.

The document

• NHTSA's copy of the document (PDF)
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The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Instrument cluster

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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