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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
A9621702063336_12021-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LANE DEPARTURE:SOFTWARE. This bulletin contains a software update that address when intersection assist/ lane assist are inop with DTC C12BFF0.
A9321522063427_12021-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin contains instructions for when the diagnostic address changes when the high-voltage battery charger control module is replaced.
A8721142063467_12021-06-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin contains instructions for addressing a A/C noise with no DTCs.
21TechRefGde5262021-06-03. Service bulletin. BACK OVER PREVENTION; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). All models except Q3, R8, and TT: Settings Section: Split Verify and set language & measurements checklist items into 2 separate with instructions. Changed instructions for "Set Entertainment Fad in Parking aid", " Set Music volune while parking to Medium", and "Turn off Manual Seed Warning". Media/Radio/Sat Section: Changed instructions for "Verify HD Radio is turned "off". On-Hoist Inspection Section: Changed where to store tire pressures for Set and store tirepressures" to "Home > Vehicle > Settings & Service > Tire pressure monitoring". Audi connect Section: Changed instructions for "Turn on the Wi-Fi hotspot", Check Wi-Fi hotspot visibility", and Enable satellite map view for navigation"
21etronTECHREPRT2021-06-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Settings Section Split "Verify and Set language & Vehicle Measurements" into two separate checklist items. Post-Road Test Inspection Section: Added "See TSB 2061028" to the end of The vehicle must not be delivered to the customer if the emergency call function has not been successfully activated (LED lights up in green).
Dealer 93K42021-06-03. Service bulletin. ELECTRICAL SYSTEM. On a small number of Audi e-tron vehicles manufactured within a specific period, battery module control units were interchanged due to a process discrepancy during battery production.
Circular 93K42021-06-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. On a small number of Audi e-tron vehicles manufactured within a specific period, battery module control units were interchanged due to a process discrepancy during battery production.
A9121042024323_82021-06-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
Dealer 94O32021-06-03. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:BULBS; ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS. The coming home feature display from the Digital Matrix LED headlamps may be misaligned.
Bulletin 94O32021-06-03. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:BULBS; EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM. The coming home feature display from the Digital Matrix LED headlamps may be misaligned.
A9421382063125_12021-06-03. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. This bulletin contains a software update for DTC C119911 and a warning message displayed regarding headlights that does not affect their operation.
A9121032058769_42021-06-03. Service bulletin. PARKING BRAKE; EQUIPMENT. This bulletin contains instructions for checking the sensors and resolving DTCs B107BF0 and B10FCF0.
A6921662063398_12021-06-03. Service bulletin. SEAT BELTS. This informational bulletin outlines what is damage due to outside influence on a seat belt.
A6921652058455_42021-06-03. Service bulletin. SEAT BELTS. This bulletin contains repair instructions for twisted seat belts.
A0021452063335_12021-06-03. Service bulletin. EQUIPMENT. The fixing bolts have been discontinued for the vehicle but they are available for customer purchase via the parts system.
SM 39-20212021-06-03. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward
A9021032058077_52021-06-03. Service bulletin. EQUIPMENT; SERVICE BRAKES. This bulletin contains instructions for determining unexpected Audi presense interventions.
A6621722063197_12021-06-03. Service bulletin. STRUCTURE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for when the door cover trim is loose.
A4821012062288_32021-06-03. Service bulletin. STEERING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for when the electric steering column is not working in the vertical direction.
A0021442052680_32021-06-03. Service bulletin. EQUIPMENT. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage).
SM 38-20212021-06-03. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A9621682061155_22021-06-03. Service bulletin. ENGINE. This informational bulletin states to create a PSS as there is a sporadic failure of the intersection/lane changing assistance.
A9121002061028_22021-06-03. Service bulletin. VISIBILITY. This bulletin explains and troubleshoots when Audi connect does not have a green SOS light.
A8721132010146_12021-06-03. Service bulletin. STRUCTURE. This bulletin contains instructions for properly cleaning and removing a musty odor in the vehicle.
A6421802020552_12021-06-03. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. This bulletin provides instructions on how to clean exterior glass.

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