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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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
Dealer 94M92021-02-04. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:TAIL LIGHTS. The rear lid auxiliary tail lamp may flicker due to an internal electronics problem (increased resistance). As a result, the rear lid auxiliary tail lamp may sporadically fail to function. This issue does not affect the function of the other rear lamps on the vehicle.
A9121612061933_12021-02-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains an explanation for the Navigation message in the instrument cluster.
A9321412061921_12021-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin explains the discoloration no certain connection terminals are normal.
A9321402060814_32021-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains repair instructions for when the range in the cluster is shown to be significantly less than the expected range.
A4521152061908_12021-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a software update that addresses a yellow warning lamp and several warning messages in the instrument cluster.
A9020832061689_12021-01-08. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin states to create a PSS record when the acoustical and optical parking aid are unavailable with DTC B107A16 stored.
A9120522056248_22021-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for when the laser scanner alignment is unsuccessful.
A5320042043016_22021-01-08. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES; EQUIPMENT. This bulletin contains repair instructions for when cables are hanging in view with no DTCs.
A0020432061669_12021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions for Audi connect before performing any MMI work.
21etronCSTDLVRY2021-01-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Infotainment Section: ADDED: Check radio settings and ensure 'Online additional data' is toggled on and 'online station tracking' is set to Automatic
A9320382060814_22020-12-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin contains repair instructions for when the range in the cluster is shown to be significantly less than the expected range.
A9020802061489_12020-12-04. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:ADAS:CONTROL MODULE. This bulletin states to create a PSS record if the driver assistance systems are sporadically not working.
A9120272061257_12020-12-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains instructions regarding Audi connect software failures and how to resolve it.
A9120262058769_32020-12-04. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; EQUIPMENT. This bulletin contains instructions for checking the sensors and resolving DTCs B107BF0 and B10FCF0.
21etronTECHREPRT2020-11-05. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Driver Assistance Section: ADDED: "Activate rear cross traffic assist (if equipped)"
A9120252059528_22020-11-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
A9020782061157_12020-11-05. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin states to create a PSS as the traffic -sign based speed warning threshold setting is not stored.
A9120242026611_72020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a guide for troubleshooting HD radio issues.
A9320352060814_12020-11-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when the range in the cluster is shown to be significantly less than the expected range.
A9120202061028_12020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin explains and troubleshoots when Audi connect does not have a green SOS light.
A9120172055188_32020-11-05. Service bulletin. ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; EQUIPMENT. This bulletin contains repair instructions for when one of the following DTCs is logged B127C04, B127D04, B127E04, B127F04, and B200FFA with a fogged overhead camera.
A9020752060332_22020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 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.
A9020732059891_32020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin directs you to read the SSP and not perform any repairs for the concern.
A9120142060675_12020-10-06. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; EQUIPMENT:ELECTRICAL. This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'.
A9020682059891_22020-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This informational bulletin directs you to read the SSP and not perform any repairs for the concern.

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