P0494 on the 2026 Buick Envision
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.
| PIT6546 | 2026-09-10. Service bulletin. This Preliminary information describes a condition where engineering is working on a solution to a P0494 DTC stored in the ECM. |
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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.