# Service bulletin NCU\-2023040017

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: 10237265
- Published by NHTSA: 2023\-06\-05
- Manufacturer's number: NCU\-2023040017
- Manufacturer's date: 2023\-05\-19
- NHTSA component: SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE

## NHTSA's summary

Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain MY 2022\-2023 C\-Class, EQS and S\-Class \(206, 297 and 223 platform\) vehicles, the driving assistance system control unit software does not meet current specifications. In the presence of uniquely shaped civil superstructures that parallel the roadway at a height of\~26\-33 feet \(e.g. large overhanging bridge abutments, etc.\), the vehicle may initiate brake applications during operation. In such cases, the driver remains in control of the vehicle and can override the system at any time. What We’re Doing An authorized Mercedes\-Benz dealer will update the driving assistance system control unit software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237265-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237265-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system

## Vehicles listed

- 2023 MERCEDES\-BENZ AMG C43
- 2022 MERCEDES\-BENZ AMG EQS
- 2022 to 2023 MERCEDES\-BENZ AMG EQS 53
- 2022 to 2023 MERCEDES\-BENZ C 300
- 2022 MERCEDES\-BENZ EQS 450
- 2022 to 2023 MERCEDES\-BENZ EQS 450\+
- 2022 to 2023 MERCEDES\-BENZ EQS 580
- 2023 MERCEDES\-BENZ EQS450
- 2023 MERCEDES\-BENZ EQS450\+
- 2023 MERCEDES\-BENZ EQS580
- 2021 MERCEDES\-BENZ S 500
- 2023 MERCEDES\-BENZ S 500
- 2022 MERCEDES\-BENZ S 500 4MATIC
- 2021 MERCEDES\-BENZ S 560
- 2021 MERCEDES\-BENZ S 580
- 2022 MERCEDES\-BENZ S 580 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2021 MERCEDES\-MAYBACH S 560
- 2021 MERCEDES\-MAYBACH S 580
- 2022 to 2023 MERCEDES\-MAYBACH S 580 4MATIC
- 2023 MERCEDES\-MAYBACH S 680
- 2022 MERCEDES\-MAYBACH S 680 4MATIC

JSON: [/v1/bulletins/10237265](/v1/bulletins/10237265)

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