TOYOTA SIENNA 2017 XL30 / 3.G Workshop Manual

511-1. For safe use
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For safety and security
■Adult*1
■Child*4 or child restraint system*5
Condition and operation in the front passenger occupant classi-
fication system
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG ON”
SRS warning light Off
Seat belt reminder light Off
*2 or
flashing
*3
Devices Front passenger airbag
Activated
Side airbag on the front passenger seat
Curtain shield airbag in the front passenger side
Front passenger’s seat cushion airbag Activated*2
or
deactivated
*3
Front passenger’s seat belt pretensioner and force limiter Activated
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
*6
SRS warning light Off
Seat belt reminder light Off
*2 or
flashing
*3
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat cushion airbag Deactivated
Front passenger’s seat belt pretensioner and force limiter Activated

521-1. For safe use
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Unoccupied
■There is a malfunction in the system
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights Not illuminated
SRS warning light Off
Seat belt reminder light
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat cushion airbag Deactivated
Front passenger’s seat belt pretensioner and force limiter Activated
*7
or
deactivated
*8
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
SRS warning light On
Seat belt reminder light Off
Devices Front passenger airbag
Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat cushion airbag Deactivated
Front passenger’s seat belt pretensioner and force limiter Activated

531-1. For safe use
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1
For safety and security
*1: The system judges a person of adult size as an adult. When a smalleradult sits in the front passenger seat, the system may recognize him/her
as a child depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: When a larger child who has outgrown a child restraint system sits in thefront passenger seat, the system may recognize him/her as an adult
depending on his/her physique or posture.
*5: Never install a rear-facing child restraint system on the front passengerseat. A forward-facing child restraint system should only be installed on
the front passenger seat when it is unavoidable. ( P. 57)
*6: In case the indicator light is not illuminated, consult this manual on how to
install the child restraint system properly. ( P. 60)
*7: In the event of a side collision.
*8: In the event of a frontal collision or rollover.
WARNING
■Front passenger occupant classification system precautions
Observe the following precautions regarding the front passenger occupant
classification system.
Failure to do so may cause death or serious injury.
●Wear the seat belt properly.
● Make sure the front passenger’s seat belt plate has not been left inserted
into the buckle before someone sits in the front passenger seat.
● Make sure the “AIR BAG OFF” indicator light is not 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, and 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 illumi-
nated, the SRS airbags for the front passenger will not activate, which
could cause death or serious injury in the event of a collision.
● Do not apply a heavy load to the front passenger seat or equipment (e.g.
seatback pocket or armrest).
● Do not put weight on the front passenger seat by putting your hands or
feet on the front passenger seat seatback from the rear passenger seat.
● 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.

541-1. For safe use
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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.

551-1. For safe use
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For safety and security
Safety information for children
●It is recommended that children sit in the rear seats to avoid acci-
dental contact with the shift lever, wiper switch etc.
● Use the sliding door child-protector lock or the window lock switch
to avoid children opening the door while driving or operating the
power window accidentally. ( P. 125, 184)
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, back door,
seats etc.
Observe the following precautions when children are in the vehi-
cle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by playing with
the windows, the moon roof (if equipped) or other features of the vehicle. In
addition, heat build-up or extremely cold temperatures inside the vehicle
can be fatal to children.

561-1. For safe use
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Child restraint systems
Studies have shown that installing a child restraint system on a rear
seat is much safer than installing one on the front passenger seat.
● Choose a child restraint system that suits your vehicle and is appro-
priate to the age and size of the child.
● For installation details, follow the instructions provided with the child
restraint system.
General installation instructions are provided in this manual.
(  P. 60)
A child restraint system for a small child or baby must itself be
properly restrained on the seat with the LATCH anchors or the
lap portion of the lap/shoulder belt.
The laws of all 50 states of U. S.A. and Canada now require the
use of child restraint systems.
Points to remember

571-1. For safe use
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For safety and security
Child restraint systems are classified into the following 3 types
according to the age and size of the child:
■Selecting an appropriate child restraint system
●Use a child restraint system appropriate for the child until the child becomes
large enough to properly wear the vehicle’s seat belt.
● If the child is too large for a child restraint system, sit the child on a rear seat
and use the vehicle’s seat belt. ( P. 28)
Types of child restraints
Rear facing  Infant seat/con-
vertible seatForward facing  Convertible
seat
Booster seat

581-1. For safe use
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WARNING
■Child restraint precautions
●For effective protection in automobile 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 accident, the child can be
crushed against the windshield, or between you and the vehicle’s interior.
● Toyota strongly urges the use of a proper child restraint system that con-
forms to the size of the child, installed on the rear seat. According to acci-
dent statistics, the child is safer when properly restrained in the rear seat
than in the front seat.
● Never install a rear-facing child restraint system on the front passenger
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 passenger airbag
can cause death or serious injury to the child if the rear-facing child
restraint system is installed on the front passenger seat.
● A forward-facing child restraint system may be installed on the front pas-
senger seat only when it is unavoidable. A child restraint system that
requires a top tether strap should not be used in the front passenger seat
since there is no top tether strap anchor for the front passenger seat.
Adjust the seatback as upright as possible and always move the seat as
far back as possible even if the “AIR BAG OFF” indicator light is illumi-
nated, because the front passenger airbag could inflate with considerable
speed and force. Otherwise, the child may be killed or seriously injured.
● Do not use the seat belt extender when installing a child restraint system
on the front or rear passenger seat. If installing a child restraint 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 seri-
ous injury to the child or other passengers in the event of a sudden stop,
sudden swerve or an accident.

591-1. For safe use
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For safety and security
WARNING
■Child restraint precautions
●Do not allow the child to lean his/her head or any part of his/her body
against the side door or the area of the seat, front and side pillars or roof
side rail from which the SRS side airbags or curtain shield airbags deploy
even if the child is seated in the child restraint system. It is dangerous if
the SRS side airbags and curtain shield airbags inflate, and the impact
could cause death or serious injury to the child.
● Make sure you have complied with all installation instructions provided by
the child restraint manufacturer and that the system is properly secured. If
it is not secured properly, it may cause death or serious injury to the child
in the event of a sudden stop, sudden swerve or an accident.
■ 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.
■ When the child restraint system is not in use
●Keep the child restraint system properly secured on the seat even if it is
not in use.
Do not store the child restraint system unsecured in the passenger com-
partment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle or store it securely in the luggage compartment. This will prevent it
from injuring passengers in the event of a sudden stop, sudden swerve or
an accident.

601-1. For safe use
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Installing child restraints
Child restraint LATCH anchors
Second seats (8-passenger models)
LATCH anchors are provided for
second outside seats. (Buttons dis-
playing the location of the anchors
are attached to the seats.)
Second seats (7-passenger models)
LATCH anchors are provided for
both second seats. (Buttons dis-
playing the location of the anchors
are attached to the seats.)
Follow the child restraint system manufacturer’s instructions.
Firmly secure child restraints to the rear seats using the LATCH
anchors or a seat belt. Attach the top tether strap when installing
a child restraint.
The lap/shoulder belt can be used if your child restraint system
is not compatible with the LATCH (Lower Anchors and Tethers
for Children) system.