U0101 on the 2025 Audi RS 3
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.
| TSB-2074475_3 | 2025-03-19. Service bulletin. This bulletin provides information when DTC U010100 , Lost Communication with TCM in diagnostic address 23 occurs. |
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| A4724302074475_2 | 2024-08-06. Service bulletin. This bulletin provides information when DTC U010100 , Lost Communication with TCM in diagnostic address 23 occurs. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.