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Service bulletin TSB_2074475_4

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11020376
Published by NHTSA2025-07-08
Manufacturer's numberTSB_2074475_4
Manufacturer's date2025-06-27
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This TSB provides information when DTC U010100 is stored; Lost Communication with TCM in diagnostic address 23.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Trouble codes named

U0101

Vehicles listed
AUDI A32022, 2023, 2024, 2025, 2026
AUDI Q32020, 2021, 2022, 2023, 2024, 2025
AUDI RS 32022, 2023, 2024
AUDI RS 32026
AUDI S32022, 2023, 2024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
TSB_2083444_12026-10-05. Service bulletin. This TSB prvoides informaiton when there is a distance warning + ACC is not available/Audi pre sense fault; DTC U101400, B203200.
TSB_2081476_32026-10-05. Service bulletin. This bulletin provides information regarding driver assist systems: emergency assist intervention.
TSB_2081074_22026-10-05. Service bulletin. This bulletin provides information when the front assist intervenes.
TSB_2079214_42026-10-05. Service bulletin. This bulletin provides information regarding fault finding and repair information for electric tailgate.
TSB_2068573_62026-10-05. Service bulletin. This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
TSB_2082976_22026-09-04. Service bulletin. This bulletin provides general information about the current tpp issues for Audi connect.
TSB_2082976_12026-09-04. Service bulletin. This bulletin provides general information about the current tpp issues for Audi connect.
TSB_2081476_22026-09-04. Service bulletin. This bulletin provides information when there is demergency assist intervention; MBQevo.
TSB_2069331_82026-09-04. Service bulletin. This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
TSB_2064681_62026-09-04. Service bulletin. This bulletin provides information when there is an issue with wireless charging/wireless charging is not working.