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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Parking Brake System) >> Diagnostic Information and Procedures >> DTC C027D: Park Brake Slip Detected >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

The parking brake control module has detected wheel speed on the rear wheels with the parking brake applied.