# Service bulletin LI82.85\-P\-069851

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: 11000542
- Published by NHTSA: 2024\-05\-30
- Manufacturer's number: LI82.85\-P\-069851
- Manufacturer's date: 2024\-05\-02
- Campaign id or software version: LI82.85\-P\-069851
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

High\-frequency interference noise may be heard from the speakers while driving. This complaint only occurs when "voice amplification" is active. Coupling noise of microphone signal in voice amplification. Intermediate remedy: The interference noise can be remedied by deactivating voice amplification: "Home" \-\> "Settings" \-\> "System" \-\> "Audio" and de\-select "Voice amplification to rear" to switch off the function \(see attachment\). Note: To activate or deactivate the function, the ignition must be switched on, seat belts \(at rear and front\) must be fitted and the doors, windows and roof must be closed. Permanent solution: Perform software update of MBUX multimedia system \(A26/17\) to E419.5 \(available from 06/19\) or greater. Deactivate the ‘voice amplification’ feature. Inform customer of function and effects of additional sounds caused by driving over bumps or uneven road surfaces.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11000542-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11000542-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2020 to 2021 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2024 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2020 to 2024 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2020 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 to 2024 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 2023 MERCEDES\-BENZ AMG GLS63E
- 2020 to 2024 MERCEDES\-BENZ GLE 350
- 2021 to 2022 MERCEDES\-BENZ GLE 350 E
- 2020 to 2024 MERCEDES\-BENZ GLE 450
- 2024 MERCEDES\-BENZ GLE 450E 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2022 to 2024 MERCEDES\-BENZ GLE 580 4MATIC
- 2020 MERCEDES\-BENZ GLS 450
- 2022 to 2024 MERCEDES\-BENZ GLS 450 4MATIC
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 to 2024 MERCEDES\-BENZ GLS 580 4MATIC
- 2023 MERCEDES\-BENZ GLS 600
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 2021 MERCEDES\-BENZ MAYBACH GLS600
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 to 2023 MERCEDES\-MAYBACH GLS 600 4MATIC

JSON: [/v1/bulletins/11000542](/v1/bulletins/11000542)

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