Service bulletin 21A4S4TECHREP
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 | 10180046 |
| Published by NHTSA | 2020-10-06 |
| Manufacturer's number | 21A4S4TECHREP |
| Manufacturer's date | 2020-09-08 |
| NHTSA component | EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL |
NHTSA's summary
Vehicle Preparation Section: ADDED: "FCC ID, and Model" to" Verify Audi phone box customer registration form is present in vehicle and add the serial number, FCC ID, and Model from Elsa (if equipped). See TSB 2051720" Media / Radio / SAT Section: ADDED: "Confirm SiriusXM is on and in an active state (can scroll through channels and hear music)" ADDED Phone Box Form to the end of the document
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
Equipment and accessories, Labels and manuals
| AUDI A4 | 2021 |
|---|---|
| AUDI ALLROAD | 2021 |
| AUDI S4 | 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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| A9124892069112_5 | 2024-04-04. Service bulletin. This bulletin provides information on various improvements for MIB 3. |
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| A9124762073134_1 | 2024-03-06. Service bulletin. This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the star button function assignment is lost on the multifunction steering wheel is lost sporadically. |
| A9124622072901_1 | 2024-03-06. Service bulletin. This bulletin provides information when the wireless connection for the Audi Smartphone Interface drops out in specific areas. |
| A9124682072959_1 | 2024-03-06. Service bulletin. This bulletin provides information for when Apple CarPlay pops up or takes over audio without user intervention in vehicles with the Audi Smartphone Interface. |
| A9124662071056_3 | 2024-03-06. Service bulletin. This bulletin provides information for when Outlook contacts are not accessible via the MMI with Apple devices. |
| A9124632044694_3 | 2024-03-06. Service bulletin. This bulletin provides information pertaining to MMI Navigation database concerns. |