P1C01 on the 2026 Cadillac Vistiq
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.
| PIT6319B | 2025-04-01. Service bulletin. This Preliminary information communicates that a customer may experience a service high voltage message with a loss of heat. The technician may find P1C01 in history. The technician is advised that engineering is working on updated software. |
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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.