P16F4 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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| PIP6099A | 2026-02-01. Service bulletin. This P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions. |
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| PIP6099 | 2026-01-30. Service bulletin. This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a TCM data pull. |
2 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.