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Service bulletin A4521172061906_2

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 id10198482
Published by NHTSA2021-07-02
Manufacturer's numberA4521172061906_2
Manufacturer's date2021-06-25
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE:ELECTRICAL; SUSPENSION

NHTSA's summary

This bulletin contains a software update for DTC U103100.

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

Brakes, Electrical system, Suspension, Parking brake, Software

Trouble codes named

U1031

Vehicles listed
AUDI E-TRON2020
AUDI E-TRON2021, 2022

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
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A5723032062887_32023-04-06. Service bulletin. This bulletin provides instructions for when key adaptation fails with error messages "FAZ1552E Key status not valid" and "FAZ1540E Action not successful" when performing the vehicle immobilizer adaptation test plan.
A4822362067555_22023-01-06. Service bulletin. This bulletin provides a software update for DTC B200049 with Symptom Code 7353984.
A4822332064018_62022-07-01. Service bulletin. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.
A4622332051095_72022-07-01. Service bulletin. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A9122982063502_52022-06-07. Service bulletin. This bulletin contains a software update that addresses DTC B200FF9 with various driver assist malfunction messages.