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P04D9 on the 2023 Volvo XC90

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 P04D9
371942025-04-09. Service bulletin. This is a Technical Journal: Check engine light and DTC - ECM P04D900. Clear the DTC and check if the vehicle software is the latest version
371942025-03-27. Service bulletin. This is a Technical Journal: Check engine light and DTC - ECM P04D900. Clear the DTC and check if the vehicle software is the latest version
371942025-01-07. Service bulletin. This is a Technical Journal: Check engine light and DTC - ECM P04D900. Clear the DTC and check if the vehicle software is the latest version

3 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.