Cadillac Escalade 2026 — technical service bulletin
Bulletin PIT6450 · NHTSA communication 11025459 · issued Nov 7, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2026
model years
8
vehicle entries
Official summary
This preliminary information communicates an issue with a Service Brake system message and DTC C0597. Dealers are to replace the brake master cylinder.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.