# Service bulletin Launch NCU \- 202

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.

- Type: Service bulletin
- NHTSA id: 10187791
- Published by NHTSA: 2021\-03\-01
- Manufacturer's number: Launch NCU \- 202
- Manufacturer's date: 2021\-01\-27
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN

## NHTSA's summary

Mercedes\-Benz AG \(?MBAG?\), the manufacturer of Mercedes\-Benz, has determined that on certain Model Year \(?MY?\) 2020 S\-Class \(217 Platform\), the transmission control unit software does not correspond to the current production specifications. 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)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187791-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187791-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Software

## Vehicles listed

- 2020 MERCEDES\-BENZ S 450
- 2020 MERCEDES\-BENZ S 550
- 2020 MERCEDES\-BENZ S 560
- 2020 MERCEDES\-BENZ S 560 E

JSON: [/v1/bulletins/10187791](/v1/bulletins/10187791)

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