WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
Remove the sliding door locating pin screws.
Remove the sliding door locating pin from the vehicle.
Fig 1: Removing Sliding Door Locating Pin & Screws