Audi A3 2022–2024 — technical service bulletin
Bulletin TSB_2074786_2 · NHTSA communication 11023766 · issued Sep 26, 2025
Technical service bulletin
communication type
Electrical System
component
2022–2024
model years
15
vehicle entries
Official summary
This bulletin provides information when a warning lamp for exterior lighting is displayed in the instrument cluster; DTC U112100, U110B00, B126A29.
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.