WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View of Rear Door and Bolts
Courtesy of GENERAL MOTORS CORP.
With the aid of another technician, remove the bolts and the hinge from the door and the body.