2014 TOYOTA SIENNA Owners Manual

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1
1-7. Safety information
Before driving
SIENNA_OM_OM45483U_(U)
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classifica-
tion system. This system detects the conditions of the front passen-
ger seat and activates or deactiv ates the devices for the front
passenger.
SRS warning light
Front passenger’s seat belt reminder light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light

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Conditions and operation of the front passenger occupant
classification system
■ Adult
*1
■Child*3 or child restraint system*4
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
ON”
SRS warning light Off
Front passenger’s seat belt reminder light
Flashing*2
Devices Front passenger airbag
Activated
Side airbag on the front passenger seat
Curtain shield airbag in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
*5
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag Deactivated
Side airbag on the front passenger seat
Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat belt pretensioner

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1-7. Safety information
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Before driving
SIENNA_OM_OM45483U_(U)
■
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
Front passenger’s 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 belt pretensioner Deactivated
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
SRS warning light On
Front passenger’s 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 belt pretensioner

188 1-7. Safety information
SIENNA_OM_OM45483U_(U)
*1: The system judges a person of adult size as an adult. When asmaller adult sits in the front passenger seat, the system may rec-
ognize him/her as a child depending on his/her physique and pos-
ture.
*2: In the event the front passenger does not wear a seat belt.
*3: When a larger child who has outgrown a child restraint systemsits in the front passenger seat, the system may recognize him/
her as an adult depending on hi s/her physique or posture.
*4: Never install a rear-facing child restraint system on the front pas-
senger seat. A forward-facing ch ild restraint system should only
be installed on the front passenger seat when it is unavoidable.
(  P.192)
*5: In case the indicator light is not illuminated, consult this manual
on how to install the child restraint system properly. ( P.196)

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1-7. Safety information
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Before driving
SIENNA_OM_OM45483U_(U)
CAUTION
■
Front passenger occupant cl assification 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, 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 illumi-
nated, the SRS airbags for the front passenger will not activate, which
could cause death or serious injury in the event of collision.
● Do not apply a heavy load to the front passenger seat or equipment (e.g.
seatback pocket).
● 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.

190 1-7. Safety information
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CAUTION
■Front passenger occupant cl assification 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 the forward-facing child restraint system
on the front passenger seat, install the child restraint system on the front
passenger seat in the proper order. (P.196)
● 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.

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1-7. Safety information
Before driving
SIENNA_OM_OM45483U_(U)
Child restraint systems
Points to rememberStudies 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 th at suits your vehicle and is
appropriate 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.196)
A child restraint system for a small child or baby must itself be prop-
erly restrained on the seat with 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.

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Types of child restraintsChild restraint systems are clas sified into the following 3 types
according to the age and size of the child:
Rear facing  Infant seat/convertible seat
Forward facing  Convertible seat
Booster seat