HATCH Button
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
When transmitter HATCH button is pressed once, transmitter sends an identification code to remote control door lock receiver to release hatch. The receiver sends a signal to Body Control Module (BCM). The BCM disarms Universal Theft Deterrent (UTD) system and activates hatch release relay.