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Service bulletin A9121332064292_1

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 id10201517
Published by NHTSA2021-10-05
Manufacturer's numberA9121332064292_1
Manufacturer's date2021-09-16
NHTSA componentEQUIPMENT

NHTSA's summary

This bulletin contains repair instructions for when adjusting the MMI volume via the steering wheel controls, the volume sporadically and unintentionally goes all the way to min or max.

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

Vehicles listed
AUDI A42021
AUDI A52021
AUDI A5 CABRIOLET2021
AUDI A82021
AUDI A8 L E2021
AUDI ALLROAD2021
AUDI AUDI
AUDI E-TRON2021
AUDI Q32021
AUDI Q52021
AUDI Q5 E2021
AUDI Q5 PHEV2021
AUDI Q72021
AUDI Q82021
AUDI RS 52021
AUDI S42021
AUDI S52021
AUDI S5 CABRIOLET2021
AUDI S82021
AUDI SQ52021
AUDI TT2021
AUDI TT RS2021
AUDI TTS2021

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

Recalls for the same vehicles and component
20236592023-12-13. Accessories
22V8060002022-10-26. EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT; BACK OVER PREVENTION:DISPLAY FUNCTION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
A9124992073629_12024-05-07. Service bulletin. This bulletin provides information when the Apple CarPlay connection is dropped repeatedly in short intervals.
A9124022062466_52024-05-06. Service bulletin. This bulletin provides information when Apple CarPlay cannot be started using the Wi-Fi connection (Wireless Carplay).
Audi-Q72024-04-22. Service bulletin. Audi Delivery Guidelines.
SM 21-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
SM 19-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
SM 17-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
SM 09-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
AVIN4PIN202403052024-04-05. Service bulletin. Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Temp sensor DTC P218500 Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst System, Bank1 Efficiency Below
A9124892069112_52024-04-04. Service bulletin. This bulletin provides information on various improvements for MIB 3.
A9124872065485_62024-04-04. Service bulletin. This bulletin provides information when there is interference on telephone calls that is synced with the engine's RPMs.