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Service bulletins for the 2020 Audi A8

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.

1291 on file from NHTSA, as of 2026-10-19.

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

Bulletins, newest first
Circular 93K82022-02-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Portable Charging Unit Default Setting & Label
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
A9421542064418_32022-01-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. This bulletin contains information for a turn signal or tail light warning lamp with DTC B16D4F4, B16D5F4, B16D6F4, and/or B16D7F4, along with instructions for handling such concerns.
A4821142064018_42022-01-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.
A2721402058831_32022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P0CA700 or U046900.
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.
A9421502064418_22021-12-07. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM. This bulletin states to fill out the questionnaire and clear DTCs if the vehicle is within NVLW for DTC(s) B16D4F4, B16D5F4, B16D6F4, B16D7F4, if the vehicle returns then follow additional instructions.
Bulletin 24HR2021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Update engine control module software
A9121522054038_32021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for DTCs B18BE13 and B18BD13 with an SOS malfunction message.
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.
A9121492055945_82021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when the warning message "SOS Emergency call function deactivated" is seen in the instrument cluster.
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.
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.
A9121362055945_72021-10-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains repair instructions for when the warning message "SOS Emergency call function deactivated" is seen in the instrument cluster.
SM 74-20212021-10-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A9421462064418_12021-10-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. This bulletin states to fill out the questionnaire and contact TAC if the vehicle is within NVLW for DTC(s) B16D4F4, B16D5F4, B16D6F4, B16D7F4.
A9421442059217_22021-10-06. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This bulletin contains instructions for when the hazard warning lights activate on their own and may not be able to be turned off.
A9121312061028_32021-10-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin explains and troubleshoots when Audi connect does not have a green SOS light.
A9121292055945_62021-10-05. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when the warning message "SOS Emergency call function deactivated" is seen in the instrument cluster.
A4821102064018_22021-10-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.
A9121222060474_32021-09-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin advises the technician to create a PSS record for when after a software update, with active privacy settings, e.g. "Use of vehicle position", the pop-up window is shown with every ignition cycle. Message persists even if "Do not show again" is selected.

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