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C0597 on the 2026 Cadillac Escalade

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 C0597
PIT6450A2025-11-18. Service bulletin. This preliminary information communicates an issue with a Service Brake system message and DTC C0597 C055F. Dealers are to replace the brake master cylinder.
PIT64502025-11-10. Service bulletin. This preliminary information communicates an issue with a Service Brake system message and DTC C0597. Dealers are to replace the brake master cylinder.

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.