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Service bulletins for the 2021 Audi e-tron

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.

1220 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
A6921732056421_52021-12-07. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE. This informational bulletin contains instructions on when DTC B101C07 is stored in the airbag control module/ safety computer.
A5721862058452_32021-12-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. This bulletin contains repair instructions for when the rear window defog button will light up and then turn off.
SM 87-20212021-12-07. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
A9121472061625_32021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin states to create a PSS record when the message "SOS - Emergency call malfunction, please contact service" is displayed in the instrument cluster and DTCs B129B11 and B239C11 are stored in the control module for emergency call module and communication unit.
A9021212060332_42021-12-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for creating a PSS record when DTC C12D5FA is stored and the driver assist systems are inoperable and a warning message is displayed.
A9021192061689_22021-12-07. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin states to create a PSS record when the acoustical and optical parking aid are unavailable with DTC B107A16 stored.
A9321572064636_12021-11-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains repair instructions for when the myAudi app reports the vehicle is done charging multiple times.
A9321562059467_22021-11-05. Service bulletin. UNKNOWN OR OTHER. This informational bulletin shows the battery design differences in the app, laptop, etc.
A9121462063702_32021-11-05. Service bulletin. UNKNOWN OR OTHER. This bulletin states to create a PSS when the MMI display turns blue. Workaround provided.
A9121442062942_32021-11-05. Service bulletin. UNKNOWN OR OTHER. This bulletin states to create a PSS record when the detailed interaction map flickers.
A9121432063502_32021-11-05. Service bulletin. ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:SOFTWARE; UNKNOWN OR OTHER. This bulletin contains a software update that addresses DTC B200FF9 with various driver assist malfunction messages.
A9121422062266_32021-11-05. Service bulletin. UNKNOWN OR OTHER. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A9121412064818_12021-11-05. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI; UNKNOWN OR OTHER. This bulletin contains repair instructions for when it is not possible to establish a bluetooth connection with DTC U110300.
A9121402063702_22021-11-05. Service bulletin. SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING; FORWARD COLLISION AVOIDANCE: CRASH IMMINENT BRAKING. This bulletin states to create a PSS when the MMI display turns blue. Workaround provided.
A6921722063398_22021-11-05. Service bulletin. UNKNOWN OR OTHER. This informational bulletin outlines what is damage due to outside influence on a seat belt.
A6921712058455_52021-11-05. Service bulletin. SEAT BELTS. This bulletin contains repair instructions for twisted seat belts.
A5721852064183_22021-11-05. Service bulletin. STRUCTURE:BODY. This bulletin contains repair instructions for detached outer door seals.
A1921242064025_32021-11-05. Service bulletin. HYBRID PROPULSION SYSTEM. This bulletin contains repair instruction for when the HV battery charges slowly.
A0021532063335_22021-11-05. Service bulletin. EQUIPMENT. The fixing bolts have been discontinued for the vehicle but they are available for customer purchase via the parts system.
A9121382064681_12021-11-05. Service bulletin. EQUIPMENT. Informational TSB detailing why the mobile device sometimes cannot be charged wirelessly.
A9021152064692_12021-11-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a workaround for DTC U131C00 and the HUD not turning on with "The selected system is currently unavailable" message and 12V battery might be drained periodically.
DC 202109282021-10-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer Communication - Vehicle Sales Reporting, Reinstatement, and Audit Policy Update - Effective September 30, 2021
SM 75-20212021-10-06. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
Dealer 93L92021-10-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The high-performance charging procedure at public charging stations may sporadically be terminated. In addition to this, the charging flap can sometimes not be opened and/or the connector catch of the charging cable cannot be released.
Circular 93L92021-10-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The high-performance charging procedure at public charging stations may sporadically be terminated. In addition to this, the charging flap can sometimes not be opened and/or the connector catch of the charging cable cannot be released.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.