1997 GMC Safari Owner's Manual - Page 79

To open the driver's side rear door, pull on the latch release handlein the inside of the door. To fully open the rear doors, push in on the clip and lift the check assembly up off the mounting bracket. To close the rear doors, close the driver's side door first. Check to make sure both doors are completely closed. The rear doorshave a check assembly to keep the doors from opening beyond 90". Do this on each door. Replace the check assemblies on the mounting brackets before closing doors. the See the Caution following "Swing-Out Windows" in this section.