# U0101 on the 2026 Audi A3

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name U0101

- [11020376](https://open.wenmarpro.com/bulletins/11020376), 2025-07-08: This TSB provides information when DTC U010100 is stored; Lost Communication with TCM in diagnostic address 23.