GM Service Manual Online
For 1990-2009 cars only

Rear Hatch/Gate Description and Operation Rendezvous

The liftgate can be locked and unlocked by pressing the door lock switch on the front driver or passenger doors or by pressing the REAR button on the key fob. Battery voltage is supplied to the liftgate actuator through the body control module (BCM). The BCM will pulse the liftgate actuator when an unlock input is received through the key fob, or the door lock switch. The liftgate may then be released by pressing the liftgate release touchpad located on the inner side of the liftgate handle.