# Service campaign CL\-240903

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 campaign
- NHTSA id: 11011781
- Published by NHTSA: 2024\-12\-12
- Manufacturer's number: CL\-240903
- Manufacturer's date: 2024\-12\-06
- NHTSA component: ENGINE

## NHTSA's summary

Mercedes\-Benz AG, the manufacturer of Mercedes\-Benz vehicles, has determined that on certain Model Year 2021 \- 2022 G\-Class vehicles, the engine control unit software characteristics may not meet local regulatory requirements for the vehicle's On\-Board Diagnostics and/or exhaust gas emissions. Our records indicate that your vehicle is included in the affected population. What is the issue? During low\-load operations, the vehicle's air/fuel ratio diagnostic system may not be activated as intended. What will your Mercedes\-Benz Dealership do? An authorized Mercedes\-Benz dealership will check and, if necessary, update the Engine Control Unit Software. This vehicle repair will be provided at no cost to you. While the minimum repair time can be up to 30 minutes, your dealership can provide you with a better estimate of the overall time for this service visit. As a matter of normal service process, an authorized Mercedes\-Benz dealer will also check for other repair measures which might be applicable to your vehicle and this may increase the required working time. You will not be charged for other service or repairs unless so requested. Steps to take. . Find your nearest authorized Mercedes\-Benz dealership at mbusa.com/recall to schedule your recall repair. . Please mention you are scheduling an appointment for Mercedes\-Benz Emissions Recall Campaign \# 2024090003 \(CA DMV \# 240903\) . You may be asked for your VIN, which for your convenience is located at the top of this letter.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011781-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011781-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2021 to 2022 MERCEDES\-BENZ AMG G63
- 2021 to 2022 MERCEDES\-BENZ G 550

JSON: [/v1/bulletins/11011781](/v1/bulletins/11011781)

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