Service bulletins for the 2021 Audi A4
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.
1057 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
| A6920562059223_2 | 2020-09-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains information regarding the replacement of PODs components. |
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| 21A4S4TCHREP727 | 2020-08-06. Service bulletin. ELECTRICAL SYSTEM. Vehicle Preparation Section: REMOVED: "Perform TSB 2058096/1 '91 Audi connect has no function, SOS LED is off, and SOS warning message in FPK' Perform MMI Menu Reset: 5F-Information Electronics >> Guided Functions >> Basic Settings >> Reset MMI Menu Settings Deactivate privacy mode: Main Menu >> Privacy >> Activate Privacy Settings (Turn off) Turn Vehicle Off and allow Bus Sleep Cycle |
| A9120842060194_1 | 2020-08-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT. This bulletin states to create a PSS for when the Gas pop-up is blank. |
| A1720062028440_5 | 2020-08-06. 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. |
| A9020542059891_1 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM:IGNITION. This informational bulletin directs you to read the SSP and not perform any repairs for the concern. |
| A9020512058077_4 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for determining unexpected Audi pre sense interventions. |
| A4320372059665_1 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; SUSPENSION. This bulletin contains a software update that corrects the control module configuration and addresses a warning light. |
| A0020382039206_3 | 2020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions on how to use the QR code in a TSB. |
| A9020452059335_1 | 2020-05-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information on noises from the instrument cluster installation area. |
| A9020442032113_3 | 2020-05-07. Service bulletin. ELECTRICAL SYSTEM. This information bulletin contains a background on the outside air temperature reading. |
| A9119232037809_5 | 2020-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions about updating the navigation map. |
| A0019252011732_1 | 2019-10-21. Service bulletin. ELECTRICAL SYSTEM. 00 Software Version Management (SVM), operating instructions |
| A9119932037087_4 | 2019-10-15. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for enabling text message notifications through the MMI system. |
| A0019222047812_6 | 2019-07-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains instructions for setting up and using the SD Creator program. 2010-2021 A3, 2015-2021 A3 Cabrio, 2010-2016 A3 Sportback, 2010-2021 A4, 2010-2021 A4 allroad, 2010-2012 A4 Avant, 2010-2021 A5 Cabrio, 2010-2021 A5 Coupe, 2018-2021 A5 Sportback, 2010-2021 A6, 2010-2021 A7, 2010-2021 A8, 2010-2019 e-tron, 2019-2021 e-tron quattro, 2015-2021 Q3, 2010-2021 Q5, 2010-2021 Q7, 2019-2021 Q8, 2010-2020 R8 Coupe, 2011-2020 R8 Spyder, 2017-2019 RS3, 2010-2021 RS5, 2010-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2010-2012 S4, 2010-2021 S5 Cabrio, 2010-2021 S5 Coupe, 2018-2021 S5 Sportback, 2010-2021 S6, 2010-2020 S7, 2010-2021 SQ5, 2010-2021 TT Coupe, 2010-2021 TT Roadster |
| A9119652050565_2 | 2019-07-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains general software update instructions for vehicles with PR Code 7UH. 2016-2020 A3, 2016-2020 A3 Cabrio, 2016 A3 Sportback, 2016-2020 A4, 2016-2020 A4 allroad, 2016-2012 A4 Avant, 2016-2020 A5 Cabrio, 2016-2020 A5 Coupe, 2018-2020 A5 Sportback, 2016-2020 A6, 2016-2020 A7, 2016-2020 A8, 2016-2020 e-tron, 2019-2020 e-tron quattro, 2016-2020 Q3, 2016-2020 Q5, 2016-2020 Q7, 2016-2020 Q8, 2016-2020 R8 Coupe, 2016-2020 R8 Spyder, 2017-2019 RS3, 2016-2020 RS5, 2016-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2016-2020 S5 Cabrio, 2016-2020 S5 Coupe, 2018-2020 S5 Sportback, 2016-2020 S6, 2016-2020 S7, 2018-2021 SQ5, 2016-2020 TT Coupe, 2016-2020 TT Roadster |
| A961930 2052250- | 2019-04-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin contains instructions for correctly programming a door opener (produced by the Chamberlain Group) to the HomeLink. |
| A961930 2052250- | 2019-04-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STRUCTURE; EQUIPMENT. This bulletin contains instructions for correctly programming a door opener (produced by the Chamberlain Group) to the HomeLink. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.