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C12FC on the 2025 Audi Q5

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 C12FC
TSB_2078609_62026-05-05. Service bulletin. This bulletin provides informaoitn when there is a message in the instrument cluster "Left/right main beam headlight defective. See owner's manual"; DTC C12FC01.
TSB_2078609_52026-03-03. Service bulletin. This bulletin provides informaoitn when there is a message in the instrument cluster "Left/right main beam headlight defective. See owner's manual"; DTC C12FC01.
TSB_2078609_32026-01-07. Service bulletin. This bulletin provides informaoitn when there is a message in the instrument cluster "Left/right main beam headlight defective. See owner's manual"; DTC C12FC01.
TSB_2078609_22025-10-03. Service bulletin. This bulletin provides information when there is a message in the cluster: "Left/right main beam headlight defective. See owner’s manual" DTC C12FC01.
TSB_2078182_12025-07-08. Service bulletin. This Pending Service Solution (PSS) requests that technicians add a recordin the PSS database in instances when the warning lamp in instrument cluster "Left/Right main beam headlight defective" is on; DTC: C12FC01.

5 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.