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
Only bulletins with component: Parking brake are shown. Show all
| A4521172061906_2 | 2021-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE:ELECTRICAL; SUSPENSION. This bulletin contains a software update for DTC U103100. |
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| A9121032058769_4 | 2021-06-03. Service bulletin. PARKING BRAKE; EQUIPMENT. This bulletin contains instructions for checking the sensors and resolving DTCs B107BF0 and B10FCF0. |
| 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. |
| 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.