Page 42 of 272

name. SIENNA (45403U)
42
1. SEAT POSITION ADJUSTING LEVER
Pull the lever up. Then slide the seat
to the desired position with slight body
pressure and release the lever.
Do not place anything under the seats. It
might interfere with the seat−lock mecha-
nism.
2. SEATBACK ANGLE ADJUSTING
LEVER
Lean forward and pull the lever up.
Then lean back to the desired angle
and release the lever.
CAUTION
To reduce the risk of sliding under
the lap belt during a collision, avoid
reclining the seatback any more than
needed. The seat belts provide maxi-
mum protection in a frontal or rear
collision when the passengers are sit-
ting up straight and well back in the
seats. If you are reclined, the lap belt
may slide past your hips and apply
restraint forces directly to the abdo-
men. Therefore, in the event of a
frontal collision, the risk of personal
injury may increase with increasing
recline of the seatback.
For access to the third seat, do this.
1. Pull the lever behind the seatback.
The seat will slide forward.
2. Move the seat to the front−most posi-
tion.
After passengers are in, lift up the seat-
back and return the seat until it locks.
—Adjusting second seats (cap-
tain seat)—Moving second seat for third
seat entry
(right side captain seat)
ProCarManuals.com
Page 44 of 272
name. SIENNA (45403U)
44
CAUTION
To avoid serious injury:
Do not set up the seatback table
while the vehicle is moving.
Do not sit on the folded seatback.
Make sure the second seat is se-
curely locked in position when you
set the second seat as a temporary
table.
NOTICE
To prevent the seat from damaging,
avoid putting heavy loads on the tem-
porary table.
1. Pull the lever behind the seatback.
Right side only—The seat will slide for-
ward.2. Lift the seatback angle adjusting le-
ver and fold the seatback down.
—Folding second seats
(captain seat)
ProCarManuals.com
Page 45 of 272
name. SIENNA (45403U)
45
You can use the second seatback as a
temporary table only when the vehicle is
stopped.
CAUTION
To avoid serious injury:
Do not set up the seatback table
while the vehicle is moving.
Do not sit on the folded seatback.
Make sure the second seat is se-
curely locked in sliding position
when you set the second seat as a
temporary table.
When the second seat for a table
was slid for accessing to the third
seat, get the seatback up to the
upright position, fold the seatback
down again, and make certain all
the latches are engaged.
NOTICE
To prevent the seat from damaging,
avoid putting heavy loads on the tem-
porary table.
1. Lift the seatback angle adjusting le-
ver (1) or press the lever (2) behind
the seatback and fold the seatback
down.
—Removing second seat
(bench seat)
ProCarManuals.com
Page 46 of 272
name. SIENNA (45403U)
46
2. Pull the seat lock release lever. Lift
the seat and remove the seat toward
you.
Removing the second seat will enlarge the
luggage compartment. See ”Luggage
stowage precautions” in Part 2 for
precautions to observe for loading
luggage.
CAUTION
When removing or reinstalling the
seat, observe the following to prevent
personal injury:
Be careful not to get your hands or
feet pinched in the seat.
Be careful not to hit the removed
seat against a person or drop it on
yourself.
To reinstall the second seat, do this.
1. Hook the front legs to the floor.
2. Lock the rear legs.
CAUTION
Make sure the seat is securely
locked by pushing forward and rear-
ward on the top of the seatback or
by trying to pull up the edge of the
bottom cushion. Failure to do so
will prevent seat belt from proper
operation.
Do not remove the second seat or
fold the seatback down whenever
the third seat is folded up.
ProCarManuals.com
Page 48 of 272
name. SIENNA (45403U)
48
3. Pull the seat lock release lever. Lift
the seat cushion and remove the
seat toward you.
Removing the second seat will enlarge the
luggage compartment. See ”Luggage
stowage precautions” in Part 2 for
precautions to observe for loading
luggage.
CAUTION
When removing or reinstalling the
seat, observe the following to prevent
personal injury:
Be careful not to get your hands or
feet pinched in the seat.
Be careful not to hit the removed
seat against a person or drop it on
yourself.
To reinstall the second seat, do this.
1. Hook the front legs to the floor.
2. Lock the rear legs.
CAUTION
Make sure the seat is securely
locked by pushing forward and rear-
ward on the top of the seatback or
by trying to pull up the edge of the
bottom cushion. Failure to do so
will prevent seat belt from proper
operation.
Do not remove the second seat or
fold the seatback down whenever
the third seat is folded up.
ProCarManuals.com
Page 51 of 272
name. SIENNA (45403U)
51
You can use the third seatback as a tem-
porary table only when the vehicle is
stopped.
CAUTION
To avoid serious injury:
Do not set up the seatback table
while the vehicle is moving.
Do not sit on the folded seatback.
Make sure the third seat is securely
locked in position when you set the
third seat as a temporary table.
NOTICE
To prevent the seat from damaging,
avoid putting heavy loads on the tem-
porary table.2. Remove the head restraint. Unlock
the seat legs by pulling up the left
side handle under the seat, and
swing the whole seat up and for-
ward.
After returning the seat to its origi-
nal position, be certain to replace
the head restraint.
Folding the third seats will enlarge the
luggage compartment. See ”Luggage
stowage precautions” in Part 2 for
precautions to observe for loading
luggage.
ProCarManuals.com
Page 52 of 272
name. SIENNA (45403U)
52
CAUTION
When folding up the seat or return-
ing it to its original position, be
careful not to get your hands or
feet pinched in the seat.
Be certain to replace head restraint.
Make sure the seat is securely
locked by pushing forward and rear-
ward on the top of the seatback or
by trying to pull up the edge of the
bottom cushion. Failure to do so
will prevent seat belt from proper
operation.
—Removing third seats
BEFORE REMOVING THIRD SEAT
Stow the third center seat belt as
shown in the illustration.
This prevents the belt from falling out
when you remove the third seat.
NOTICE
The third center seat belt must be
stowed before you remove the third
seat.
Make sure to stow the third center
seat belt in order not to cause dam-
age on the seat belt by pinching it
between the third seat inner leg and
seat striker.
ProCarManuals.com
Page 54 of 272

name. SIENNA (45403U)
54
To reinstall the third seat, do this.
1. Hook the front legs to the floor.
2. Lock the rear legs.
CAUTION
To prevent personal injury in a colli-
sion or sudden stop:
You must install the removed seat
back in its original position. The
right and the left are not inter-
changeable. If it is installed in the
wrong position, the proper seat belt
tongue and buckle will not attach.
Make sure the seat is securely
locked by pushing forward and rear-
ward on the top of the seatback or
by trying to pull up the edge of the
bottom cushion. Failure to do so
will prevent seat belt from proper
operation.
Do not remove the second seat or
fold the seatback down whenever
the third seat is folded up.
NOTICE
Avoid putting heavy loads on the re-
moved seat. The metallic tips of the
seat legs may be damaged and the
seat cannot be reinstalled.
If the seat legs are locked in the wrong
position, pull up the right side handle
under the seat. Then lift and remove
the seat.
ProCarManuals.com