GMC 1993 Suburban Owner's Manual page 22

c
To fold the seat, pull on the lever at the front of the seat cushion marked
RELEASE. Then, using the handle at the side
of the seatback, pull the
seatback forward and fold it into the seat cushion.
PO273
PO272
While the seat is in the folded position, hang the latch plate end
of
the outer
passenger position safety belts
on the hooks at the top of each retractor
cover, out of the way.
1-8