2010 TOYOTA SIENNA ECU

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1-3. Adjustable components (s
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1
Before driving
Stowing the third seats (manual seats)
■ Before stowing the third seats
Fold down the seatbacks. ( P. 7 1 )
■ Stowing the third seats
Pull and hold the “TO STOW/
USE” strap and lift up the seat
rearward. Then push the seat
down.
If the seat does not lift up when
the “TO STOW/USE” strap is
pulled, lift the seatback by pulling
on the “TO FOLD/LIFT SEAT-
BACK” strap. Then push the seat-
back down again.
Push the seat against the floor
and make sure it is locked
securely.
STEP1
STEP2

74 1-3. Adjustable components (seats, mirrors, steering wheel)
■Returning the third seats
Pull and hold the “TO STOW/
USE” strap and lift up the seat
rearward.
Push the seat forward and then
engage the front leg locks.
Make sure the front legs are
locked securely.
Raise the seatback. (P. 71)
STEP1
STEP2
STEP3

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1-3. Adjustable components (s
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Before driving
■“3RD SEAT” warning light (power third seat)
CAUTION
■When seats are moved
Observe the following precautions.
Failure to do so may result in death or serious injuries.
●When seats are to be moved, stop the vehicle on level ground, set the
parking brake and put the shift lever in P.
● Do not fold, adjust or otherwise move the seats while the vehicle is mov-
ing.
● When a seat is folded, adjusted, moved or removed, be careful that it does
not hit passengers or luggage.
● Be careful not to get your hands or feet pinched by any part of a seat.
● After a seat is folded, adjusted, moved or reinstalled, push it forward and
backward to make sure that it is properly locked in position.
● When returning or installing a seat, make sure the seat belts are not
twisted or caught in the seat.
● The seat belts for the second seats must be removed from their hangers
when the seat belts are in use.
■ Folding seats
●Do not sit on a folded seatback.
● Do not use a seat as a temporary table while the vehicle is moving.
● When a seat is used as a temporary table, make sure the seat is securely
locked in position.
The warning light comes on if the third
seat operation is not yet complete when
the engine switch is in the “ON” position.

78 1-3. Adjustable components (seats, mirrors, steering wheel)
CAUTION
■Tumbling the second seats
●In order to prevent personal injury in a collision or sudden stop, do not
allow passengers to sit in the third seats when a second seat is tumbled.
● When tumbling the second seats, fix the seats securely by adjusting the
length of the seat's holding strap.
● Do not attach the holding strap to anything other than the assist grip to
hold the second seat.
● The holding strap must be stowed into the pocket when it is not in use.
■ 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.

86 1-3. Adjustable components (seats, mirrors, steering wheel)
Center third seat belt
The center third seat belt is a 3-point type restraint with 2 buckles.
Both seat belt buckles must be correctly located and securely latched
for proper operation. Make sure that the buckle is
securely latched for ready use of
the center seat belt.Matches the tab with the
hooked end.
Matches the tab with the con-
cave end.
■Adjusting the height of the belt (front seats)
Down
Up
Move the height adjuster up
and down as needed until you
hear a click.

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Before driving
■Pregnant women
■ People suffering illness
Obtain medical advice and wear the seat belt in the proper way.
■ When not using the second seat belts
Obtain medical advice and wear the seat
belt in the proper way. ( P. 85)
Women who are pregnant should position
the lap belt as low as possible over the
hips in the same manner as other occu-
pants. Extend the shoulder belt com-
pletely over the shoulder and position the
belt across the chest. Avoid belt contact
over the rounding of the abdominal area.
If the seat belt is not worn properly, not
only a pregnant woman, but also the fetus
could suffer death or serious injury as a
result of sudden braking or a collision.
Pass the outer seat belts through the seat
belt hangers and secure the seat belt
plates to prevent the shoulder belts from
being damaged.

90 1-3. Adjustable components (seats, mirrors, steering wheel)
■Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult
size.
●Use a child restraint system appropriate for the child, until the child
becomes large enough to properly wear the vehicle's seat belt. ( P. 136)
● When the child becomes large enough to properly wear the vehicle's seat
belt, follow the instructions on P. 85 regarding seat belt usage.
■ Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate
for the first collision, but will not activate for the second or subsequent colli-
sions.
■ Seat belt extender
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.

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1-3. Adjustable components (s
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Before driving
CAUTION
■Using a seat belt comfort guide
●Make sure the belt is not twisted and that it lies flat.
● Always make sure the shoulder belt is positioned across the center of the
shoulder. The belt should be kept away from the neck, and should not fall
off the shoulder.
Failure to observe these precautions could reduce the effectiveness of the
seat belt in an accident, causing death or serious injury.
■ 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.