Chevrolet 2005 Silverado 1500 Pickup Owner's Manual page 15

The extended cab's rear seat can also be folded open
for more seating space. To use the seat do the following:
1. Push rearward on the seat cushion while pulling
forward on the release strap under the seat
cushion. Pull the seat cushion down until it latches.
2. After latching the seat cushion down, gently pull up
on it to make sure it is locked.
Rear Seat Operation (Crew Cab)
The second row rear seat has a 60/40 split seat. Either
side of the rear seat may be folded down to give
you more cargo space.
Make sure that nothing is under or in front of the seat
and that the head restraints are completely lowered.
To fold the rear seat, do the following:
1. Pull up on the strap
loop at the rear of the
seat cushion. Then,
pull the seat cushion up
and fold it forward.
2. 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 seat more
upright. The lever at the base of the seat must be
turned rearward to release the seatback.
To return the seat to the passenger position do the
following:
1. Lift the seatback up and push it rearward all
the way.
2. Lower the seat cushion until it latches into position.
3. Pull forward on the seatback and up on the
seat cushion to make sure the seat is securely
in place.
Check to see that the buckles on the driver's side
seatback are accessible to the outboard and center
occupant and are not under the seat cushions.
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