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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
A9022362065789_12022-02-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:TURN SIGNAL. This bulletin states that a software update should be performed to address a turn signal sound that is louder than expected.
A9022342060332_52022-02-04. Service bulletin. FORWARD COLLISION AVOIDANCE: ADAPTIVE LIGHTING; ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE. 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.
Dealer 93K82022-02-04. Service bulletin. EQUIPMENT:OTHER:LABELS; ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:PORT. Portable Charging Unit Default Setting & Label
A6022582065731_12022-02-04. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This bulletin describes how to modify the sunroof frame if the sunroof glass panel or sunroof frame require replacement, as replacement components have been updated.
A4822162064018_52022-02-04. Service bulletin. STEERING. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.
A4022322059474_32022-02-04. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER. This bulletin contains instructions for correcting buffer stop noise (rumbling or squeaking from the front end).
A9021322065490_12022-01-06. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin states to replace the instrument cluster when DTC B200FF0 is stored and SAFE CP is displayed in the Audi virtual cockpit.
A6921752056421_62022-01-06. Service bulletin. AIR BAGS; AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE. This informational bulletin contains instructions on when DTC B101C07 is stored in the airbag control module/ safety computer.
A5721882064183_32022-01-06. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE. This bulletin contains repair instructions for detached outer door seals.
Dealer 93N12022-01-06. Service bulletin. ELECTRICAL SYSTEM. The remaining range display is being modified on Audi e-tron vehicles manufactured within a specific period.
Circular 93N12022-01-06. Service bulletin. EQUIPMENT:ELECTRICAL. The remaining range display is being modified on Audi e-tron vehicles manufactured within a specific period.
A9121552062266_42022-01-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A6621802062700_22022-01-06. Service bulletin. STEERING; EQUIPMENT:MECHANICAL. When turning the steering wheel to full lock and the vehicle is moved a rubbing sound is heard in the front wheels.
A5721872063236_22022-01-06. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LOCK. This bulletin contains diagnosis information for when the front and/or rear doors cannot be opened and there maybe be various DTCs associated.
A5521652062730_22022-01-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes.
A4421862056386_72022-01-05. Service bulletin. STEERING; SUSPENSION. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A4021302023187_62022-01-05. Service bulletin. STEERING. This information bulletin provides an explanation for squeaking noises heard when the steering wheel is turned or maneuvered.
A1921262061918_42022-01-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A0021552011732122022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains general instructions for software updates.
A9721822061976_22021-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs.
A9621742063336_22021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LANE DEPARTURE: LANE KEEP: AUTOMATIC STEERING. This bulletin contains a software update that address when intersection assist/ lane assist are inop with DTC C12BFF0.
A9021272064844_12021-12-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This bulletin contains repair instructions for when the Audi virtual cockpit does not start-up with no DTCs.
A4421842065160_12021-12-07. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; TIRES:TEMPORARY/EMERGENCY SPARE TIRE. This informational bulletin explains how the temporary/collapsible spare wheel inflates.
A9121512058769_52021-12-07. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. This bulletin contains instructions for checking the sensors and resolving DTCs B107BF0 and B10FCF0.
A9121502062115_72021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains instructions for when the nav files are corrupted during an update.

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