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Service bulletin NCU2021080020

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10205839
Published by NHTSA2022-01-03
Manufacturer's numberNCU2021080020
Manufacturer's date2021-09-03
NHTSA componentEQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER

NHTSA's summary

Software Update.

The document

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, Equipment and accessories, Software

Vehicles listed
MERCEDES-BENZ MERCEDES-BENZ

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