Ford 2003 Mustang Owner's Manual page 77

Seating and safety restraints
3rd seat (wagon only)
The third seat faces the rear of the vehicle. For
height and weight limits, see the label on the seat
cushion. When the seat is down, the back of your
wagon has a flat surface for carrying cargo.
To open up the seat:
1. Unlock the floor
panel with the key,
then use the handle to
fold the floor panel
toward the front of the
car.
2. Remove the cargo
cover. The cargo cover
must be removed or
the seatback will not
latch in the upright
position.
3. Lift the remote latch
release on the left side
of the compartment
and fold the remaining
floor panel until it
latches. Make sure the
seatback is locked in
the upright position.
To close the seat, make sure the safety belts are
properly stowed, then lift the remote latch release
and push the seat down until it latches. Pull up on
the handle and push the floor panel into place.
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