Page 34 of 668

341-1. For safe use
SIENNA_OM_OM08013U_(U)
WARNING
■When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes
twisted around a child’s neck, it may lead to choking or other serious injuries
that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ Seat belt pretensioners (front seats)
●Do not place anything, such as a cushion, on the front passenger’s seat.
Doing so will disperse the passenger’s weight, which prevents the sensor
from detecting the passenger’s weight properly. As a result, the seat belt
pretensioner for the front passenger’s seat may not activate in the event of
a collision.
● If the pretensioner has activated, the SRS warning light will come on. In
that case, the seat belt cannot be used again and must be replaced at
your Toyota dealer.
■ Adjustable shoulder an chor (front and second outside Tip-up seats)
Always make sure the shoulder belt is positioned across the center of your
shoulder. The belt should be kept away from your neck, but not falling off
your shoulder. Failure to do so could reduce the amount of protection in an
accident and cause death or serious injuries in the event of a sudden stop,
sudden swerve or accident. ( P. 31)
■ Seat belt damage and wear
●Do not damage the seat belts by allowing the belt, plate, or buckle to be
jammed in the door.
● Inspect the seat belt system periodically. Check for cuts, fraying, and loose
parts. Do not use a damaged seat belt until it is replaced. Damaged seat
belts cannot protect an occupant from death or serious injury.
● Ensure that the belt and plate are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Toyota
dealer.
● Replace the seat assembly, including the belts, if your vehicle has been
involved in a serious accident, even if there is no obvious damage.
● Do not attempt to install, remove, modify, disassemble or dispose of the
seat belts. Have any necessary repairs carried out by your Toyota dealer.
Inappropriate handling may lead to incorrect operation.
Page 54 of 668

541-1. For safe use
SIENNA_OM_OM08013U_(U)
WARNING
■Front passenger occupant classification system precautions
●Do not recline the front passenger seatback so far that it touches a rear
seat. This may cause the “AIR BAG OFF” indicator light to be illuminated,
which indicates that the SRS airbags for the front passenger will not acti-
vate in the event of a severe accident. If the seatback touches the rear
seat, return the seatback to a position where it does not touch the rear
seat. Keep the front passenger seatback as upright as possible when the
vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness of the seat belt system.
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator still
remains illuminated, either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat fully rearward.
● When it is unavoidable to install a forward-facing child restraint system on
the front passenger seat, install the child restraint system on the front pas-
senger seat in the proper order. ( P. 60)
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
front passenger occupant classification system. In this case, contact your
Toyota dealer immediately.
● Child restraint systems installed on the rear seat should not contact the
front seatbacks.
● Do not use a seat accessory, such as a cushion and seat cover, that cov-
ers the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.
Page 156 of 668
156
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3-3. Adjusting the seats
■Removing the second outside seats (Tip-up seats)Pull the armrests up.
Pull the seatback adjustment
lever and fold down the seat-
back. The cushion will tip up.
Slide the seat forward to a lock position.
Pull the release lever under
the cushion and simulta-
neously lift the seat to
remove.
■Removing the second seats (Ottoman seats)Pull the armrests up.
Pull the seatback adjustment
lever and fold down the seat-
back.
Slide the seat to a forward lock position.
Pull the release lever behind
the seatback st raight back,
then up. While moving the
lever up, simultaneously lift
the seat to remove.
Removing the second seats
1
2
3
1
2
3
Page 157 of 668
SIENNA_OM_OM08013U_(U)
1573-3. Adjusting the seats
3
Operation of each component
■Removing the second center seat (if equipped)Pull the lock release strap
and fold down the second
center seatback.
Make sure that the head
restraint is in the lowest position.
Pull the lock release strap
under the seat to remove the
seat.
Retract the cushion leg.
Stow the seat in the storage
box of the luggage room
(cushion side first).
Engage the stow latch buckle
to hold the seat and tighten
the latch strap.
1
2
3
Page 161 of 668
SIENNA_OM_OM08013U_(U)
1613-3. Adjusting the seats
3
Operation of each component
■Folding down the third seatbacks
Press the folding/returning
switch.
■Returning the third seatbacks
Press the folding/returning switch, returning switch (P. 164) or
seatback angle adjustment switch ( P. 154).
Before stowing or returning third seat, remove any items from the floor
area to prevent interference with moving parts.
■Before stowing the third seats Lower the center head
restraint to the lowest posi-
tion ( P. 173), and stow the
seat belt buckles.
Stow the center seat belt. ( P. 3 0 )
Stowing the third seats (manual seats)
1
2
Page 163 of 668
SIENNA_OM_OM08013U_(U)
1633-3. Adjusting the seats
3
Operation of each component
■Returning the third seatsReturn the flaps.
Pull the handle and lift up the
seat rearward.
Push the seat forward and
then engage the front leg
locks.
Make sure the front and rear
legs are locked securely.
Raise the seatback and the outside head restraints. ( P. 159)
You can operate the power third seats when the shift lever is in P.
Before stowing or returning third seat, remove any items from the floor
area to prevent interference with moving parts.
■Before stowing the third seats Lower the center head
restraint to the lowest posi-
tion ( P. 173) and stow the
seat belt buckles.
Stow the center seat belt. ( P. 3 0 )
1
2
Stowing the third seats (power seats)
3
1
2
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SIENNA_OM_OM08013U_(U)
1653-3. Adjusting the seats
3
Operation of each component
■Power third seat (vehicles with power third seat)
● If the indicator light above the switches flashes three times when the folding/
returning switch is pressed, the folding operation will not start. Make sure
the shift lever is in P.
● If any of the following conditions occur while the seat is operating, the seat
operation will stop. The indicator light above the switches will flash three
times and a beep will sound for about 10 seconds:
• An object is caught between the seatback and seat cushion.
• The stowing switch is released.
• Other power third seat switch is pushed while operating the stowing
switch.
• The shift lever is moved from P when the engine switch is turned to the “ON” position (vehicles without a smart key system) or IGNITION ON
mode (vehicles with a smart key system).
If the engine is started during operating, the seat operation may also be
stopped.
To continue the folding operation, the seatback must be returned to its orig-
inal position first.
■ AUTO ACCESS SEAT (if equipped)
The AUTO ACCESS SEAT cannot be removed.
■ “3RD SEAT” warning light ( vehicles with power third seat)
The warning light comes on if the third
seat operation is not yet complete when
the engine switch is turned to the “ON”
position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles
with a smart key system).
Page 166 of 668

166
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3-3. Adjusting the seats
WARNING
■When folding the rear seatbacks down
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Do not fold the seatbacks down while driving.
● Stop the vehicle on level ground, set the parking brake and shift the shift
lever to P.
● Do not allow anyone to sit on a folded seatback or in the luggage compart-
ment while driving.
● Do not allow children to enter the luggage compartment.
● Be careful not to get any part of your body pinched by a seat.
■ Seat adjustment
●Be careful that the seat does not hit passengers or luggage.
● To reduce the risk of sliding under the lap belt during a collision, do not
recline the seat more than necessary.
If the seat is reclined too far, the lap belt may slide past the hips and apply
restraint forces directly to the abdomen, or your neck may contact the
shoulder belt, increasing the risk of death or serious injury in the event of
an accident.
Adjustments should not be made while driving as the seat may unexpect-
edly move and cause the driver to lose control of the vehicle.
■ After returning the rear seatbacks or installing seats
Observe the following precautions. Failure to do so may result in death or
serious injury.
●Make sure the seatback is securely locked by pushing it forward and rear-
ward on the top.
● Check that the seat belts are not twisted or caught in the seatback.
● Make sure the seat is locked in place by trying to shake the seatback and
lift up the seat cushion.
■ Removing the second seats
●Do not leave a seat in the vehicle if it has been disengaged from the floor.
● Do not sit on or place anything on a seat that has been removed from the
vehicle.