Service bulletin NCU-2022100008

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, has determined that on certain MY 2019-2020 A-Class and CLA-Class (118 and 177 platform) vehicles, the transmission control unit software does not correspond with the current series configuration. The possibility exists that the vehicle does not start and the fault message “vehicle at risk of rolling and transmission not in P position” is incorrectly shown. Upon cycling the ignition the vehicle’s function could be restored. What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the transmission 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

Transmission and driveline

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

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