GMC 2001 Sierra 1500 Pickup Owner's Manual page 24

R
Rear Seat (Crew Cab)
The second row rear seat is a 60/40 split seat. Either side
of the rear seat may be folded down to give you more
cargo space.
Before folding the rear seat on the driver's side, insert
the two buckles into the retainer in the seatback. That
way, the buckles will be out of the way when the seat is
folded and will be available for passengers to use when
the seat is returned to the passenger position. Also, make
sure that nothing is under or in front of the seat and that
the head restraints are completely lowered.
To fold, pull up on the
strap loop at the rear of the
seat cushion. Then, pull
the seat cushion up and
fold it forward.
After folding the seat cushion fully forward, pull the
seatback forward and fold the seatback down until it is
flat. If the seatback cannot fold flat because it interferes
with the cushion, try moving the front seat forward
and/or bringing the front seatback more upright. The
lever at the base of the seat must be turned rearward to
release the seatback.
To create a load floor, release the panels from the seatback
by pushing forward on the latch. Then fold the panels back
to cover the rear seat footwell area.
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