2003 Buick Rendezvous Owner's Manual - Page 105

Liftgate Release Your vehicle may have either a liftgate release button, located in the instrument panel switchbank, or a release button located on the inner side of the liftgate handle. Instrument Panel Switchbank Liftgate Handle To open the liftgate, the transaxle must be in PARK (P) and all of the doors must be unlocked. To unlock the doors, use the remote keyless entry or the power door locks. If your vehicle has a remote keyless entry transmitter, you may unlock and open the liftgate by pressing the REAR button on the transmitter. 2-12