Audi A7 2021–2023 — technical service bulletin
Bulletin Dealer 93HO_20260709 · NHTSA communication 11035794 · issued Jul 9, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2021–2023
model years
4
vehicle entries
Official summary
A software update is available for the high‑voltage battery on vehicles included in this service action. This update includes quality enhancements that improve battery diagnostic capabilities, allow for more precise analysis of battery modules, and increase the depth and effectiveness of battery repairs. Updated criteria information & owner notification text for postcards added
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.