Audi A3 2022–2025 — technical service bulletin
Bulletin TSB_2073131_4 · NHTSA communication 11023759 · issued Sep 26, 2025
Technical service bulletin
communication type
Electrical System
component
2022–2025
model years
15
vehicle entries
Official summary
This bulletin provides informaton when there is a software error; DTC U178500 passive/sporadic.
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.