# Over\-the\-air update OTA \- Update Com Mod SW

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: Over\-the\-air update
- NHTSA id: 11037429
- Published by NHTSA: 2026\-09\-21
- Manufacturer's number: OTA \- Update Com Mod SW
- Manufacturer's date: 2026\-09\-11
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Issue On certain subject vehicles, software for the communication module does not meet the current series production configuration. A software update will be implemented which will provide robustness enhancements and system stabilization measures for the communication module. Remedy MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037429-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037429-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 MERCEDES\-BENZ AMG S63
- 2021 MERCEDES\-BENZ S 500
- 2021 MERCEDES\-BENZ S 560
- 2021 MERCEDES\-BENZ S 580
- 2021 MERCEDES\-MAYBACH S 580

JSON: [/v1/bulletins/11037429](/v1/bulletins/11037429)

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