GMC 2000 Safari Owner's Manual page 24

D
To raise the seatback on vehicles equipped with the
-
non touring seat:
A. Unlock the seatback latch by pushing up on the
latch release lever at the right rear of the seat,
while pushing down on the upper edge of
the seatback.
B. Move the seatback into the upright position.
C. Make sure the seatback is locked when it is back
in the upright position.
If you are replacing the center seat, connect the right
-
lap shoulder belt to the attachment on the seat
cushion. If you have a safety belt guide on your seat,
pull the belt through the guide before reattaching the
-
lap shoulder belt to the side of the seat. The release
hole should be facing outward.
If you installed the safety belt with the release hole
facing inward (toward the seat), slide the plastic
cover up so you can see the buckle. Disconnect the
seat belt. Slide the cover back down and reinstall the
belt correctly.
1-12
CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted won't provide the
protection needed in a crash. The person wearing
the belt could be seriously injured. After
installing the seat, always check to be sure that
the safety belts are properly routed and attached,
and are not twisted.