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P0456 on the 2024 Ford Maverick

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 P0456
TSB 25-23082025-08-26. Service bulletin. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0455, P0456, P0442 and/or P04EE. This may be due to a chaffing or rubbing condition between the fuel vapor canister line and the air vent hose.

1 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.