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U1785 on the 2022 Audi S3

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.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name U1785
TSB_2073131_42025-10-03. Service bulletin. This bulletin provides informaton when there is a software error; DTC U178500 passive/sporadic.
A9124692073131_32024-11-06. Service bulletin. This bulletin provides information when there is a software error, passive/sporadic, DTC U178500, OCU3.
A9124282073131_22024-08-06. Service bulletin. This bulletin provides information when DTC U178500 is stored, passive/sporadic, OCU3 High.
A9124732073131_12024-03-06. Service bulletin. This bulletin provides information when the DTC U178500: software error is stored passive/sporadic.

4 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.