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Service bulletins for the 2020 Audi A3

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.

729 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
A9721782061976_12021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs.
A8520232061673_12021-01-08. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains instructions for properly removing the instrument panel vents.
A6920612061030_12021-01-08. Service bulletin. AIR BAGS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES; ELECTRICAL SYSTEM. This bulletin contains instructions for correcting DTC B12251B and B102229 with airbag/seatbelt warning lamp or the PODs indicator light is displaying incorrectly.
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.
A9120302061295_12020-12-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin explains how USB damage can occur.
A9120242026611_72020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a guide for troubleshooting HD radio issues.
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'.
A9120132042506_12020-10-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. This technical service bulletin explains how to determine the status of activation keys (that affect the function of Audi drive select, cruise control, navigation, Bluetooth, smartphone interface and voice recognition), and how to update them.
A0120792058095_22020-09-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for when DTC P244000 is stored in the ECM.
A9120922053916_22020-09-03. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains instructions for when a non-plus sized iPhone heats up while wirelessly charging and the CarPlay screen may appear frozen.
A9120902060346_12020-09-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for creating a PSS record when the satellite map setting is lost.
A1720062028440_52020-08-06. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT. This informational bulletin explains when the range display is empty in the on-board computer.
A9120782057052_32020-07-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains instructions for when the MMI shows the message 'Read error occurred when accessing the navigation data' after initialization and reboots constantly with DTC B126CF0 and/or B126CF1.
A9020512058077_42020-07-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
A9120762042506102020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. This technical service bulletin explains how to determine the status of activation keys (that affect the function of Audi drive select, cruise control, navigation, Bluetooth, smartphone interface and voice recognition), and how to update them.
A0020382039206_32020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions on how to use the QR code in a TSB.
TT 91 18 062020-06-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Apple car play function.
A9020452059335_12020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information on noises from the instrument cluster installation area.
A9020442032113_32020-05-07. Service bulletin. ELECTRICAL SYSTEM. This information bulletin contains a background on the outside air temperature reading.
A3720952047609_42020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when a 'vehicle eletronics malfunction' message appears in the display (DTC B116229).
A0120532058491_22020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when there is DTC P310B00 and the engine warning lamp is on with running issues.
A3420442047609_32020-04-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when a "vehicle eletronics malfunction" message appears in the display (DTC B116229).
A0120432058491_12020-03-05. Service bulletin. EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:UNIT; ELECTRICAL SYSTEM. This bulletin contains repair instructions for when there is DTC P310B00 and the engine warning lamp is on with running issues.
20AUUSMaint02202020-03-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Standard Maintenance Section: Connected Battery Box: ADDED: SQ7, SQ8 Additional Maintenance Items section: Fragrance Cartridges: ADDED: SQ7, SQ8 Rear axle, quattro® Sport - Change ATF and differential oil: ADDED: SQ7, SQ8 Spark plugs - Replace every 30,000 miles: ADDED: SQ7, SQ8 OIL CAPACITY CHART: ADDED: SQ7, SQ8 CHANGED: Castrol Oil to 'Audi High Performance Genuine Engine Oil'
20AUUSMaint01302020-02-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Standard Maintenance Items section: ADDED to Connected box battery '(for Audi Connected Services)'

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