2012 TOYOTA SIENNA ECU

91
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■
Back door closer (if equipped)
● Use caution when using the back door closer as it still operates when the
power back door system is canceled.
■ Power back door (if equipped)
Observe the following precautions when operating the power back door.
Failure to do so may cause death or serious injury.
● Check the safety of the surrounding area to make sure there are no obsta-
cles or anything that could cause any of your belongings to get caught.
● If anyone is in the vicinity, make sure they are safe and let them know that
the back door is about to open or close.
● If the operating conditions of the power back door are no longer met, a
buzzer may sound and the back door may stop opening or closing. The
back door then has to be operated manually. Take extra care when on an
incline, as the back door may open or close abruptly.
● On an incline, the back door may fall after it opens. Make sure the back
door is fully open and secure.
●In the event that the back door is left
slightly open, the back door closer will
automatically close it to the fully closed
position. It takes several seconds
before the back door closer begins to
operate. Be careful not to catch fingers
or anything else in the back door, as
this may cause bone fractures or other
serious injuries.

108 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_U (OM45477U)Lower the seat and engage the latches.
If you locked the seat latches unintentionally before installing
securely, pull the release lever to unlock the latches.
Make sure the seat is locked in place by trying to shake the seatback
and lift up the seat cushion.
■
Installing the second center seats (if equipped)
Engage the rear pins with the
hooks.
Unfold the cushion leg and push
down on the seat to engage the
front lock.
Unfold the seatback and lock it.
Make sure the seat is locked in
place by trying to shake the seat-
back and lift up the seat cushion.
STEP2
STEP1
STEP2
STEP3

112 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_U (OM45477U) Push the seat against the floor
and make sure it is locked
securely.
Open the flaps.
■ Before returning the third seats
Be sure to move the second seats forward from the rearmost posi-
tion, as they may interfere with the third seats returning operation.
■ Returning the third seats
Return 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. 109)
STEP2
STEP1
STEP2
STEP3

114 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_U (OM45477U) Open the flaps.
■ Before returning the third seats
Be sure to move the second seats forward from the rearmost posi-
tion, as they may interfere with the third seats returning operation.
■ Returning the third seats
Return the flaps.
Press and hold the returning
switch until the seat cushion is
locked.
A beep sounds twice to indicate
the start of the operation. The
beep sounds again twice when
the seats are locked in folded-
down position. Make sure the
front and rear legs are locked
securely.
Raise the outside head restraints.
ITN13N056
STEP2
ITN13N057
STEP1
STEP2

117
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■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.
■ Stowing the third seats
● Make sure that the seat path is clear before moving the seat. Otherwise,
injury may result from contact with, or by being pinched by parts of the
seat.
● Manual third seats: Do not sit on the third seat when it is in the stowed
position with the seatback upright.
● Power third seats: Do not continue the stowing operation when the indica-
tor above the stowing switch and returning switch comes on or flashes. An
object or a person may be caught in the seat.
● Power third seats: During the stowing operation, to prevent the vehicle
from moving, do not shift the shift lever out of P with the engine switch in
the “ON” position (vehicles without a smart key system) or the “ENGINE
START STOP” switch in IGNITION ON mode (vehicles with a smart key
system).

129
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_U (OM45477U)
Third center seat belt
The third center seat belt is a 3-point type restraint with 2 buckles.
Both seat belt buckles must be co rrectly located and securely latched
for proper operation.
Make sure that the buckle is
securely latched for ready use of
the center seat belt.Matches tab “B” with the
hooked end.
Matches tab “A” with the con-
cave end.
■Adjusting the seat belt shoulder anchor height (front and
second outside Tip-up seats)
Push the seat belt shoulder
anchor down while pressing
the release button.
Push the seat belt shoulder
anchor up.
Move the height adjuster up
and down as needed until you
hear a click.

133
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_U (OM45477U)
■Seat belt extender
CAUTION
Observe the following precautions to reduce the risk of injury in the event of
sudden braking, sudden swerving or an accident.
Failing to do so may cause death or severe injury.
■Wearing a seat belt
● Ensure that all passengers wear a seat belt.
● Always wear a seat belt properly.
● Each seat belt should be used by one person only. Do not use a seat belt
for more than one person at once, including children.
● Toyota recommends that children be seated in the rear seat and always
use a seat belt and/or an appropriate child restraint system.
● To achieve a proper seating position, do not recline the seat more than
necessary. The seat belt is most effective when the occupants are sitting
up straight and well back in the seats.
● Do not wear the shoulder belt under your arm.
● Always wear your seat belt low and snug across your hips.
● Always wear the belt with the shoulder portion over the outside armrest
and the lap portion under the outside armrest.
If your seat belts cannot be fastened
securely because they are not long
enough, a personalized seat belt
extender is available from your Toyota
dealer free of charge.

136 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_U (OM45477U)
CAUTION
■When using the third center seat belt
■ Using a seat belt extender
● Do not wear the seat belt extender if you can fasten the seat belt without
the extender.
● Do not use the seat belt extender when installing a child restraint system
because the belt will not securely hold the child restraint system, increas-
ing the risk of death or serious injury in the event of an accident.
● The personalized extender may not be safe on another vehicle, when
used by another person, or at a different seating position other than the
one originally intended.
NOTICE
■When using a seat belt extender
When releasing the seat belt, press on the buckle release button on the
extender, not on the seat belt.
This helps prevent damage to the vehicle interior and the extender itself.
Do not use the third center seat belt with
either buckle released. Fastening only
one of the buckles may result in death or
serious injury in case of sudden braking
or a collision.