Circuit/System Verification
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.
Verify that DTC C0278, C129C or C129F are not set.
- If any of the DTCs are set perform the EBCM, module setup, BMC primary piston position relearn.