Circuit/System Verification
WARNING: This page is about a different car, the 2013 GMC Acadia, 2013 Chevrolet Traverse, and 2013 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Command the liftgate latch to release by pressing the exterior liftgate control switch. The liftgate latch assembly should release the liftgate.