# Service bulletin LI67.19\-P\-074543

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: 10209879
- Published by NHTSA: 2022\-04\-05
- Manufacturer's number: LI67.19\-P\-074543
- Manufacturer's date: 2022\-03\-10
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Complaint Windshield heater not activating when expected. Note: Windshield heater is only active with the engine running when the defrost button has been activated and outside temperatures are below 41°F \(5°C\). Cause Stone chippings on the windshield may result in an increased internal resistance of the electric windshield heater. When detecting increased internal resistance, the N22/1 "Air conditioning system" control unit switches off the windshield heater. Remedy Follow steps as prescribed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209879-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209879-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2019 to 2022 MERCEDES\-BENZ AMG G63
- 2019 to 2022 MERCEDES\-BENZ G 550
- 2019 to 2020 MERCEDES\-BENZ G63

JSON: [/v1/bulletins/10209879](/v1/bulletins/10209879)

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