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Service bulletin CL - 2023120012

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 id10253709
Published by NHTSA2024-05-01
Manufacturer's numberCL - 2023120012
Manufacturer's date2024-04-24
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

A Communication Module software update is available for your vehicle that allows for future remote software updates on additional control units. An authorized Mercedes-Benz dealer can update the Communication Module software on your vehicle, free of charge. We are dedicated to delivering the best-in-class customer experience, and respect for your time is a top priority. While this software update may take up to 1 hour, your dealer can provide you with a better estimate of the overall time for this visit.

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

Vehicles listed
MERCEDES-BENZ S 5002021
MERCEDES-BENZ S 5802021
MERCEDES-MAYBACH S 5802021

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