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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 C056E: Electronic Control Unit Software >> 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 module has detected missing calibration data, calibration procedure not run or completed, missing VIN, or internal software malfunction.