2009 TOYOTA SIENNA Owners Manual

113
1-6. Theft deterrent system
1
Before driving
■
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure
of the following.
●Nobody is in the vehicle.
● The windows and moon roof are closed before the alarm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the system.)
●A person inside the vehicle opens a door or hood.
● The battery is recharged or replaced when the vehicle is locked.
■ When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the
alarm may be triggered when the battery is reconnected.

114
1-6. Theft deterrent system
Theft prevention labels (for U.S.A.)
These labels are attached to
the vehicle to reduce vehicle
theft by facilitating the tracing
and recovery of parts from sto-
len vehicles. Do not remove
under penalty of law.

115
1
Before driving
1-7. Safety information
Correct driving posture
Drive in a good posture as follows:
Sit upright and well back in
the seat. (P. 5 6 )
Adjust the position of the
seat forward or backward to
ensure the pedals can be
reached and easily
depressed to the extent
required. ( P. 56)
Adjust the seatback so that
the controls are easily oper-
able.
Adjust the tilt and telescopic
positions of the steering
wheel downward so the air-
bag is facing your chest.
(  P. 93)
Lock the head restraint in
place with the center of the
head restraint closest to the
top of your ears. ( P. 82)
Wear the seat belt correctly.
(  P. 84)

116 1-7. Safety information
CAUTION
■While driving
●Do not adjust the position of the driver's seat while driving.
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
tray.
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. 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.

117
1
1-7. Safety information
Before driving
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.
Front airbags
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.
Side and curtain shield airbags
Side airbags
Can help protect the torso of the front seat occupants.
Curtain shield airbags
Can help protect primarily the head of occupants in the outer
seats.

118 1-7. Safety information
Airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag sys-
tem controls airbag deployment po wer for the driver and front pas-
senger. The driver airbag system cons ists of the driver seat's position
sensor etc. The front passenger's airbag system consists of the front
passenger occupant classification sensor etc. Curtain shield airbags
Side airbags
Front passenger airbag
Side and curtain shield air-
bag sensors
Front airbag sensors
Front passenger’s seat belt
buckle switch
Curtain shield airbag sen-
sors
Front passenger occupant
classification system (ECU
and sensors)
SRS warning light
Driver airbag
Driver’s seat position sen-
sor
Driver’s seat belt buckle
switch
“AIR BAG ON” and “AIR
BAG OFF” indicator lights
Airbag sensor assembly

119
1-7. Safety information
1
Before driving
The main SRS airbag system components are shown above. The
SRS airbag system is controlled by
the airbag sensor assembly. The
airbag sensor assembly consists of a safing sensor and an airbag
sensor.
In certain types of severe frontal or side impacts, the SRS airbag sys-
tem triggers the airbag inflators. A chemical reaction in the inflators
quickly fills the airbags with non-toxic gas to help rest rain the motion
of the occupants.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensor assemblies, curtain shield air-
bag sensor assemblies, driver's seat position sensor, driver's seat belt
buckle switch, front passenger occupant classification system, “AIR BAG
ON” and “AIR BAG OFF” indicator lights, front passenger’s seat belt buckle
switch, front seat belt pretensioner assemblies, inflators, interconnecting wir-
ing and power sources. ( P. 505)
■ 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, and 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.

120 1-7. Safety information
■Operating conditions (front airbags)
● The SRS front airbags will deploy if the severity of the frontal impact is
above the designed threshold level, comparable to an approximate 15
mph (25 km/h) collision when the vehicle impacts straight into a fixed bar-
rier that does not move or deform.
However, this threshold velocity will be considerably higher if the vehicle
strikes an object, such as a parked vehicle or sign pole, which can move or
deform on impact, or if the vehicle is involved in an underride collision (e.g.
a collision in which the front of the vehicle “underrides”, or goes under, the
bed of a truck, etc.).
● It is possible that in some collisions where the forward deceleration of the
vehicle is very close to the designed threshold level, the SRS front air-
bags and the seat belt pretensioners may not activate together.
● The SRS front passenger airbag will not activate if there is no passenger
sitting in the front passenger seat. However, the front passenger airbag
may deploy if luggage is put in the seat, or the seat belt is fastened, even
if the seat is unoccupied. ( P. 129)
■ Operating conditions (side airb ags and curtain shield airbags)
● The SRS side airbags and curtain shield airbags are designed to inflate
when the passenger compartment is subjected to a severe impact from
the side.
● The SRS side airbag on the passenger seat will not activate if there is no
passenger sitting in the front passenger seat. However, the side airbag
on the passenger seat may deploy if luggage is put in the seat, even if
the seat is unoccupied. ( P. 129)