2014 TOYOTA SIENNA Owners Manual

169
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
CAUTION
■
While driving
●Do not adjust the position of the driver’s seat.
Doing so could cause the driver to lose control of the vehicle.
● Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce
the effectiveness of the seat belt and head restraint, increasing the risk of
death or serious injury to the driver or passenger.
● Do not place anything under the front seats except for putting them in the
auxiliary box.
Objects placed under the front seats may become jammed in the seat
tracks and stop the seat from locking in place. This may lead to an acci-
dent, resulting in death or serious injury. The adjustment mechanism may
also be damaged.
■ Adjusting the seat position
●Take care when adjusting the seat position to ensure that other passen-
gers are not injured by the moving seat.
● Do not put your hands under the seat or near the moving parts to avoid
injury.
Fingers or hands may become jammed in the seat mechanism.

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1-7. Safety information
SIENNA_OM_OM45483U_(U)
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain
types of severe impacts that may cause significant injury to the
occupants. They work together with the seat belts to help reduce the
risk of death or serious injury.

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1-7. Safety information
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Before driving
SIENNA_OM_OM45483U_(U)
SRS front airbags
SRS driver airbag/front passenger airbag
Can help protect the head and ches t of the driver and front pas-
senger from impact with interior components.
SRS driver knee airbag
Can help provide driver protection.
SRS side and curtain shield airbags SRS side airbags
Can help protect the torsos of the front seat occupants.
SRS curtain shield airbags
Can help protect primarily the heads of occupants in the outer
seats.

172 1-7. Safety information
SIENNA_OM_OM45483U_(U)
Airbag system componentsFront passenger airbag
Curtain shield airbags
Side airbags
Front passenger occupant
classification system (ECU
and sensors)
Side impact sensors (rear)
Front passenger’s seat belt
buckle switch
SRS warning light
Driver airbag Side impact sensors (front
door)
Driver’s seat belt buckle
switch
Driver’s seat position sen-
sor
Driver’s knee airbag
Front impact sensors
Airbag sensor assembly
“AIR BAG ON” and “AIR
BAG OFF” indicator lights
Seat belt pretensioners

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1-7. Safety information
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Before driving
SIENNA_OM_OM45483U_(U)
Your vehicle is equipped with
ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag
sensor assembly (ECU) controls ai rbag deployment based on infor-
mation obtained from the sensors etc. shown in the system compo-
nents diagram above. This inform ation includes crash severity and
occupant information. As the air bags deploy, a chemical reaction in
the inflators quickly fills the airbags with nontoxic gas to help restrain
the motion of the occupants.

174 1-7. Safety information
SIENNA_OM_OM45483U_(U)
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying
(inflating) SRS airbag.
● A loud noise and white powder will be emitted.
● Parts of the airbag module (steering wheel hub, airbag cover and inflator)
as well as the front seats, parts of the front and rear pillars, and roof side
rail, may be hot for several minutes. The airbag itself may also be hot.
● The windshield may crack.
● For Safety Connect subscribers, if the SRS airbags deploy or in the event
of a severe rear-end collision, the system is designed to send an emer-
gency call to the response center, notifying them of the vehicle’s location
(without needing to push the “SOS” button) and an agent will attempt to
speak with the occupants to ascertain the level of emergency and assis-
tance required. If the occupants are unable to communicate, the agent
automatically treats the call as an emergency and helps to dispatch the
necessary emergency services. ( P.639)

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1-7. Safety information
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Before driving
SIENNA_OM_OM45483U_(U)
■
SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbag will deploy in the event of an impact that exceeds
the set threshold level (the level of force corresponding to an approxi-
mately 12 - 18 mph [20 - 30 km/h] frontal collision with a fixed wall that
does not move or deform).
However, this threshold velocity will be considerably higher in the following
situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in which the front of the vehicle “underrides”, or goes under, the bed of a
truck
● Depending on the type of collision, it is possible that only the seat belt
pretensioners will activate.
● The SRS front airbags for the front passenger will not activate if there is
no passenger sitting in the front passenger seat. However, the SRS front
airbags for the front passenger may deploy if luggage is put in the seat,
even if the seat is unoccupied.
■ SRS airbag deployment conditions (S RS side and curtain shield air-
bags)
● The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corre-
sponding to the impact force produced by an approximately 3300 lb.
[1500 kg] vehicle colliding with the vehicle cabin from a direction perpen-
dicular to the vehicle orientation at an approximate speed of 12 - 18 mph
[20 - 30 km/h]).
● The SRS curtain shield airbags may also deploy in the event of a severe
frontal collision.

176 1-7. Safety information
SIENNA_OM_OM45483U_(U)
■Conditions under which the SRS airbags may deploy (inflate), other
than a collision
The SRS front airbags and curtain shield airbags may also deploy if a seri-
ous impact occurs to the underside of your vehicle. Some examples are
shown in the illustration.
■ Types of collisions that may not depl oy the SRS front airbag (SRS front
airbags)
The SRS front airbags do not generally inflate if the vehicle is involved in a
side or rear collision, if it rolls over, or if it is involved in a low-speed frontal
collision. But, whenever a collision of any type causes sufficient forward
deceleration of the vehicle, deployment of the SRS front airbags may occur.
● Hitting a curb, edge of pavement or
hard surface
● Falling into or jumping over a deep hole
● Landing hard or falling
●Collision from the side
● Collision from the rear
● Vehicle rollover