Audi A3 2022–2024 — technical service bulletin
Bulletin TSB_2074786_3 · NHTSA communication 11027357 · issued Dec 11, 2025
Technical service bulletin
communication type
Electrical System
component
2022–2024
model years
15
vehicle entries
Official summary
This bulletin provides information when the arning 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.