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Service bulletin 21A4S4ALRDCSDEL

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 id10185210
Published by NHTSA2021-01-08
Manufacturer's number21A4S4ALRDCSDEL
Manufacturer's date2020-12-02
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Infotainment Section: ADDED: Check radio settings and ensure 'Online additional data' is toggled on and 'online station tracking' is set to Automatic

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

Vehicles listed
AUDI A42021
AUDI S42021

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

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