Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0C76 is a Type C DTC.
To clear this DTC from the HPCM, you must use the scan tool Special Functions feature, under the HPCM special functions list only after the repair is complete.