2008 TOYOTA SIENNA Owners Manual

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Condition and operation in the front passenger occupant classification systemCondition detected by the front
passenger occupant
classification system
Indicator/warning lightDevices
“AIR BAG ON” and
“AIR BAG OFF”indicator lightsSRS warning
light
Front
passenger ’s seat belt
reminder lightFront
passenger airbagSide airbag
on the front passenger seatCurtain shield
airbag in the front
passenger
sideFront
passenger ’s seat belt
pretensioner
1. Adult∗ 1“AIR BAG ON”OffFlashing∗4Activated
2. Child∗2 or child
restraint system∗ 3“AIR BAG OFF”∗5OffFlashing∗4Deactivated
Activated
Activated
3. UnoccupiedNot illuminatedOffOffDeactivatedDeactivated
4. There is a
malfunction in the
system
“AIR BAG OFF”OnOffDeactivatedActivated
∗1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may
recognize him/her as a child depending on his/her physique and posture.
∗2: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/h er
as an adult depending on his/her physique or posture.
∗ 3: Never install a rear −facing child restraint system on the front passenger seat. A forward −facing child restraint system should only be
installed on the front passenger seat when it is unavoidable. (See “Child restraint” on page 139 in this Section as for install ing the
child restraint system.)
∗ 4: In the event that the front passenger does not wear a seat belt.∗5: In case the indicator is not illuminated, see “Child restraint” on page 139 as for installing the child restraint system prope rly.

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CAUTION
To avoid potential death or serious
injury when the front passenger occu-
pant classification system does not
detect the conditions correctly, ob-
serve the following.
Do not recline the front passenger
seat seatback so that it interferes
with a second seat as it may cause
the “AIR BAG OFF” indicator light
be illuminated. If the seatback inter-
feres with the second seat, return
the seatback to a position where it
does not interfere with the second
seat.
Keep the front passenger seatback
as upright as possible when the ve-
hicle is moving. Reclining the seat-
back excessively may lessen the ef-
fectiveness of the seat belt system.
Make sure the “AIR BAG ON”
indicator light is illuminated when
using the seat belt extender for the
front passenger seat. If the “AIR
BAG OFF” indicator light is
illuminated, disconnect the extender
tongue from the seat belt buckle,
then reconnect the seat belt.
Reconnect the seat belt extender
after making sure the “AIR BAG
ON” indicator light is illuminated. If
you use the seat belt extender
while the “AIR BAG OFF” indicator
light is illuminated, the front
passenger airbag and side airbag
on the front passenger side may
not activate correctly, which could
cause death or serious injury in the
event of co llision.If an adult sits in the front
passenger seat, the “AIR BAG ON”
indicator light should be illumi-
nated. If the “AIR BAG OFF”
indicator light 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 light still remains illumi-
nated, either ask the passenger to
move to the rear seat, or if that is
not possible, move the front
passenger seat fully rearward.
Wear the seat belt properly.
Make sure the front passenger ’s
seat belt tab has not been left in-
serted into the buckle before some-
one sits in the front passenger
seat.
Do not apply a heavy load to the
front passenger seat or equipment
(e.g. seatback table, grocery bag
hooks, armrest or auxiliary box).
Do not put weight on the front pas-
senger seat by putting your hands
or feet on the front passenger seat
seatback from the rear passenger
seat.

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Do not let a rear passenger lift the
front passenger seat with their feet
or press on the seatback with their
legs.
Do not put objects under the front
passenger seat.
Child restraint systems installed on
the second seat should not contact
the front seatbacks.
When it is unavoidable to install the
forwardfacing child restraint sys-
tem on the front passenger seat,
install the child restraint system on
the front passenger seat in the
proper order. (As for the installation
order, see “—Installation with seat
belt” on page 142 in this Section.)
Do not remove the front seats.
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may come on to indicate a malfunc-
tion of the detection system. In this
case, contact your Toyota dealer im-
mediately.
The “AIR BAG ON” indicator light may be
illuminated (the front passenger airbag and
side airbag on the front passenger seat
may deploy) even if observing the above
cautions, when a child sits in, or a for-
ward−facing child restraint system is
installed on the front passenger seat. Re-
fer to all the cautions in “SRS airbags” on
page 120 and “Child restraint” on page 139
in this Section. Toyota strongly urges the use of ap-
propriate child restraint systems for
children.
The laws of all 50 states in the U.S.A.
and Canada now require the use of a
child restraint system.
Your vehicle conforms to SAEJ1819.
If a child is too large for a child restraint
system, the child s
hould sit in the rear
seat and must be restrained using the
vehicle’s seat belt. See “Seat belts” on
page 108 in this Section for details.
CAUTION
For effective protection in automo-
bile accidents and sudden stops, a
child must be properly restrained,
using a seat belt or child restraint
system depending on the age and
size of the child. Holding a child in
your arms is not a substitute for a
child restraint system. In an acci-
dent, the child can be crushed
against the windshield, or between
you and the vehicle’s interior.
Child restraint—
—Child restraint precautions

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Toyota strongly urges use of a
proper child restraint system which
conforms to the size of the child,
installed on the rear seat. Accord-
ing to accident statistics, the child
is safer when properly restrained in
the rear seat than in the front seat.
Never install a rearfacing child re-
straint system on the front passen-
ger seat even if the “AIR BAG OFF”
indicator light is illuminated. In the
event of an accident, the force of
the rapid inflation of the front pas-
senger airbag can cause death or
serious injury to the child if the
rearfacing child restraint system is
installed on the front passenger
seat.
A forwardfacing child restraint sys-
tem should be allowed to be
installed on the front passenger
seat only when it is unavoidable.
Always move the seat as far back
as possible even if the “AIR BAG
OFF” indicator light is illuminated,
because the front passenger airbag
could inflate with considerable
speed and force. Otherwise, the
child may be killed or seriously in-
jured.
Do not allow the child to lean his/
her head or any part of his/her
body against the side window or
the area of the seat, front or side
pillars or roof side rails from which
the side airbags or curtain shield
airbags deploy even if the child is
seated in the child restraint system.
It is dangerous if the side airbag
and/or curtain shield airbag inflate,
and the impact could cause death
or serious injury to the child.
Do not use the seat belt extender
when installing a child restraint
system on the front or rear passen-
ger seat. If installing a child re-
straint system with the seat belt
extender connected to the seat belt,
the seat belt will not securely hold
the child restraint system, which
could cause death or serious injury
to the child or other passengers in
the event of collision.
Make sure that you have complied
with all installation instructions pro-
vided by the child restraint
manufacturer and that the system is
properly secured. If it is not se-
cured properly, it may cause death
or serious injury to the child in the
event of a sudden stop or accident.

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A child restraint system for a small
child or baby must itself be properly
restrained on the seat with the lap por-
tion of the lap/shoulder belt. You must
carefully consult the manufacturer ’s
instructions which accompany the child
restraint system.
To provide proper restraint, use a child
restraint system following the manufactur-
er ’s instructions about the appropriate age
and size of the child for the child restraint
system.
Install the child restraint system correctly
following the instructions provided by its
manufacturer. General directions are also
provided under the following illustrations.
The child restraint system should be
installed on the rear seat. According to
accident statistics, the child is safer when
properly restrained in the rear seat than
in the front seat.
When not using the child restraint system,
keep it secured with the seat belt or place
it somewhere other than the passenger
compartment. This will prevent it from in-
juring passengers in the event of a sud-
den stop or accident.Child restraint systems are classified into
the following 3 types depending on the
child’s age and size.
(A) Infant seat
(B) Convertible seat
(C) Booster seat
Install the child restraint system following
the instructions provided by its manufac-
turer.
Your vehicle has anchor brackets for se-
curing the top strap of a child restraint
system.
For instructions about how to use the an-
chor bracket, see “—Using a top strap” on
page 153 in this Section.
The child restraint lower anchorages ap-
proved for your vehicle may also be used.
See “—Installation with child restraint low-
er anchorages” on page 157 in this Sec-
tion.
(A) Infant seat
(B) Convertible seat
—Child restraint system
—Types of child restraint
system

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(C) Booster seat(A) INFANT SEAT INSTALLATION
An infant seat must be used in rear
facing position only.CAUTION
Never install a rearfacing child re-
straint system on the front passen-
ger seat even if the “AIR BAG OFF”
indicator light is illuminated. In the
event of an accident, the force of
the rapid inflation of the front pas-
senger airbag could cause death or
serious injury to the child if the
rearfacing child restraint system is
installed on the front passenger
seat.
—Installation with seat belt

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Do not install a child restraint sys-
tem on the second (or third) seat if
it interferes with the lock mecha-
nism of the front (or second) seats.
Otherwise, the child or front (or
second) seat occupant(s) may be
killed or seriously injured in case
of sudden braking or a collision.
If the driver ’s seat position does
not allow sufficient space for safe
installation, install the child re-
straint system on the second right
seat.
Same angle
When installing a child restraint
system in the third seat center
position, adjust both seatbacks to
the same angle. Otherwise, the
child restraint system cannot be se-
curely restrained and this may
cause death or serious injuries in a
collision.To install the infant seat:1. Run the lap and shoulder belt through or around the infant seat following the
instructions provided by its manufactur-
er and insert the tab into the buckle
taking care not to twist the belt. Keep
the lap portion of the belt tight.

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CAUTION
After inserting the tab, make sure
the tab and buckle are locked and
that the lap and shoulder portions
of the belt are not twisted.
Do not insert coins, clips, etc. in
the buckle as this may prevent your
child from properly latching the tab
and buckle.
If the seat belt does not function
normally, it cannot protect your
child from death or serious injury.
Contact your Toyota dealer immedi-
ately. Do not install the child
restraint system on the seat until
the seat belt is fixed.
2. Fully extend the shoulder belt to put itin the lock mode. When the belt is
then retracted even slightly, it cannot
be extended.
To hold the infant seat securely, make
sure the belt is in the lock mode before
letting the belt retract.3. While pressing the infant seat firmly against the seat cushion and seatback,
let the shoulder belt retract as far as
it will go to hold the infant seat secure-
ly.