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
| A9021882061489_2 | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin states to create a PSS record if the driver assistance systems are sporadically not working. |
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| A6621692030471_6 | 2021-03-04. Service bulletin. EQUIPMENT. This informational bulletin covers the condition of when license plate mounting bracket threaded inserts are stripped. |
| A4421792022563_1 | 2021-03-04. Service bulletin. WHEELS. This bulletin provides information regarding vibrations or movement that are felt in the wheel. |
| Dealer 94M9 | 2021-02-04. 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. |
| Circular 94M9 | 2021-02-04. Service bulletin. 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. |
| A9621612061932_1 | 2021-02-04. Service bulletin. LANE DEPARTURE: ASSIST. This bulletin contains instructions for "Audi Active Lane Assist/Traffic Jam Assist: malfunction!", DTC U112300 is stored in one of two control modules |
| A9121642024323_7 | 2021-02-04. Service bulletin. PARKING BRAKE:ELECTRICAL:CONTROL MODULE. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. |
| A9121622061934_1 | 2021-02-04. Service bulletin. EQUIPMENT. This bulletin states to ignore DTCs U156C00, B1A06F1, B1A06F2 and to not perform any repairs or run any test plans for these ghost DTCs. |
| A9121612061933_1 | 2021-02-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains an explanation for the Navigation message in the instrument cluster. |
| A1921112061918_1 | 2021-02-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank. |
| A9321412061921_1 | 2021-02-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin explains the discoloration no certain connection terminals are normal. |
| A9321402060814_3 | 2021-02-04. 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. |
| A6621682046229_2 | 2021-02-04. Service bulletin. STRUCTURE. This informational bulletin outlines proper warranty procedure for optical defects. |
| A4521152061908_1 | 2021-02-04. 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. |
| A4521142061906_1 | 2021-02-04. Service bulletin. SERVICE BRAKES; PARKING BRAKE. Parking brake warning in instrument cluster while starting vehicle, DTC U103100 is stored in the ABS control module. |
| A0121962060429_2 | 2021-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for when there may be a noise from the exhaust flap or there are DTCs sporadically stored in the ECM. |
| A9020832061689_1 | 2021-01-08. 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. |
| A6820272061594_1 | 2021-01-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT. This bulletin contains instructions for addressing center console and dashboard noises. |
| A9120522056248_2 | 2021-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for when the laser scanner alignment is unsuccessful. |
| A9120532053997_3 | 2021-01-08. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains a software update for larger amount of washer fluid used. |
| A9120542053776_7 | 2021-01-08. Service bulletin. FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains a software update and test plan for DTCs C12EBF1 or C12EB92. |
| A5320042043016_2 | 2021-01-08. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES; EQUIPMENT. This bulletin contains repair instructions for when cables are hanging in view with no DTCs. |
| A5520512014055_8 | 2021-01-08. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for addressing discoloration due to moisture on a new vehicle. |
| A0020432061669_1 | 2021-01-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin contains instructions for Audi connect before performing any MMI work. |
| 21etronCSTDLVRY | 2021-01-08. 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 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.