# Service bulletin TSB\_2074786\_3

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: 11027357
- Published by NHTSA: 2026\-01\-07
- Manufacturer's number: TSB\_2074786\_3
- Manufacturer's date: 2025\-12\-11
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This bulletin provides information when the arning lamp for exterior lighting is displayed in the instrument cluster; DTC U112100, U110B00, B126A29.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027357-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027357-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

B126A, U110B, U1121

## Vehicles listed

- 2022 to 2024 AUDI A3
- 2022 to 2024 AUDI Q4 E\-TRON
- 2022 to 2024 AUDI Q4 SPORTBACK E\-TRON
- 2022 to 2024 AUDI RS 3
- 2022 to 2024 AUDI S3

## Other bulletins for the same vehicles and component

- [TSB\_2079214\_4](/bulletins/11038061.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information regarding fault finding and repair information for electric tailgate.
- [TSB\_2068573\_6](/bulletins/11038032.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
- [TSB\_2082976\_2](/bulletins/11036973.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides general information about the current tpp issues for Audi connect.
- [TSB\_2082976\_1](/bulletins/11036972.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides general information about the current tpp issues for Audi connect.
- [TSB\_2069331\_8](/bulletins/11036910.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
- [TSB\_2064681\_6](/bulletins/11036905.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there is an issue with wireless charging/wireless charging is not working.
- [TSB\_2073747\_4](/bulletins/11035810.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
- [TSB\_2082222\_2](/bulletins/11034715.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a software update for the MIB3 infotainment with Android audio.
- [TSB\_2082222\_1](/bulletins/11034714.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a software update for the MIB3 infotainment with Android audio.
- [TSB\_2081007\_3](/bulletins/11034693.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides informaiton regardinga sofware update for MMI, OCU, and gateway for MIB3 vehicles.

JSON: [/v1/bulletins/11027357](/v1/bulletins/11027357)

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