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: Anti-lock brakes are shown. Show all
| A4524412073483_1 | 2024-04-04. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, HYDRAULIC. This bulletin provides information when the ABS/ESC control unit cannot be reached "DTC U012100 - ABS Control module no communication" is stored. |
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| A4524392072977_1 | 2024-03-06. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE. This bulletin provides information when the ABS/ESC Control unit cannot be reached; DTC U012100, ABS Control Module no communication is stored. |
| A4523362072304_1 | 2024-01-04. Service bulletin. UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal. |
| A4623452070679_1 | 2023-07-10. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29. |
| A4523332061908_4 | 2023-06-06. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE. This bulletin provides an SVM update for instances when the DTC P060C00 is stored in the electric drive control module, or DTC C051F00 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.