2010 TOYOTA SIENNA sensor

54 1-2. Opening, closing and locking the doors
CAUTION
●In the following situations, the power back door may detect an abnormali\
ty
and automatic operation may be stopped. In this case, the back door has
to be operated manually. Take extra care in this situation, as the stopped
back door may suddenly fall, causing an accident.
• When the back door contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine
switch is turned to the “ON” position or the engine is started during
automatic operation
● Do not attach any accessories other than genuine Toyota parts to the back
door. The power back door may not operate, causing itself to malfunction,
or the back door may fall closed again after it is opened.
● In cases such as when replacing tires, make sure to turn off the power
back door main switch. Failure to do so may cause the back door to oper-
ate unintentionally if the power back door switch is accidentally touched,
resulting in hands and fingers being caught and injured.
■ Jam protection function (vehicles with power back door)
Observe the following precautions.
Failure to do so may cause serious injury.
●Although the back door stops closing when the jam protection function
detects an object, take extra care as you may still be injured if part of your
body is already caught.
● Never use any part of your body to intentionally activate the jam protection
function.
● The jam protection function may not work if something gets caught just
before the back door fully closes. Be careful not to catch fingers or any-
thing else.
● Sensors installed on the right and left edges of the power back door detect
an object to prevent it from being caught. Depending on its shape, how-
ever, the sensors may not detect the object.
When opening or closing the back door, take extra care to prevent your fin-
gers etc. from being caught.

91
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
CAUTION
Observe the following precautions to reduce the risk of injury in the event of
sudden braking or an accident.
Failing to do so may cause death or severe injury.
■Wearing a seat belt
●Ensure that all passengers wear a seat belt.
● Always wear a seat belt properly.
● Each seat belt should be used by one person only. Do not use a seat belt
for more than one person at once, including children.
● Toyota recommends that children be seated in the rear seat and always
use a seat belt and/or an appropriate child restraint system.
● Do not recline the seat any more than necessary to achieve a proper seat-
ing position. The seat belt is most effective when the occupants are sitting
up straight and well back in the seats.
● Do not wear the shoulder belt under your arm.
● Always wear your seat belt low and snug across your hips.
● Always wear the belt with the shoulder portion over the outside armrest
and the lap portion under the outside armrest.
■ Adjustable shoulder anchor
Always make sure the shoulder belt is positioned across the center of your
shoulder. The belt should be kept away from your neck, but not falling off
your shoulder. Failure to do so could reduce the amount of protection in an
accident and cause death or serious injuries in a collision. ( P. 86)
■ Seat belt pretensioners
●Do not place anything, such as a cushion, on the front passenger's seat.
Doing so will disperse the passenger's weight, which prevents the sensor
from detecting the passenger's weight properly. As a result, the seat belt
pretensioner for the front passenger's seat may not activate in the event of
a collision.
● If the pretensioner has activated, the seat belt becomes locked: it cannot
be further extended, nor will it return to the stowed position. The seat belt
cannot be used again and must be replaced at your Toyota dealer.

95
1
1-3. Adjustable components (seats, mirrors, steering wheel)
Before driving
Anti-glare inside rear view mirror
Glare from the headlights of vehicles behind can be reduced using
the following functions.
Manual anti-glare inside rear view mirror
Normal position
Anti-glare position
Auto anti-glare inside rear view mirror
In automatic mode, sensors are used to detect the headlights of
vehicles behind and the reflecte d light is automatically reduced.
Turns automatic mode on/off
The indicator comes on when
automatic mode is turned on.
The mirror will revert to the
automatic mode each time the
engine switch is turned to the
“ON” position.

96 1-3. Adjustable components (seats, mirrors, steering wheel)
■To prevent sensor error (veh icles with auto anti-glare inside rear view
mirror)
CAUTION
■ Caution while driving
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and an accident, resulting in
death or serious injury.
To ensure that the sensors operate prop-
erly, do not touch or cover them.

119
1-7. Safety information
1
Before driving
Airbag system components
Your 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 ai rbag 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

120 1-7. Safety information
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 restrain 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.

188 2-3. Operating the lights and wipers
■Daytime running light system (if equipped)
To make your vehicle more visible to other drivers, the headlights turn on
automatically (at a reduced intensity) whenever the engine is started and the
parking brake is released. Daytime running lights are not designed for use at
night.
■ Headlight control sensor (if equipped)
■ Automatic light off system
●When the light switch is in the
or position with the tail
lights on: The tail lights turn off after driver’s door is opened if the engine
switch has been turned to the “ACC” or “LOCK” position.
● When the light switch is in the or position with the head-
lights on: The headlights and all lights turn off 30 seconds after all the
side doors and back door are closed if the engine switch has been turned
to the “ACC” or “LOCK” position. (The lights turn off immediately if the
on the wireless remote control is pressed after all doors are
locked.)
To turn the lights on again, turn the engine switch to the “ON” position, or
turn the light switch off once and then back to the
or position.
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 565)
The sensor may not function properly if
an object is placed on the sensor, or any-
thing that blocks the sensor is affixed to
the windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.

202 2-4. Using other driving systems
Driving in vehicle-to-vehicle distance control mode This mode employs a laser radar sensor to detect the presence of
vehicles within 400 ft. (120 m) ahead and to judge the distance
between your vehicle and those vehicles.
Note that vehicle-to-vehicle distanc e will close when traveling on long
downhill slopes.
Example of constant speed cruising (when there are no vehicles
ahead):
When set to 62 mph (100 km/h)
The vehicle travels at the speed set by the driver. The desired vehicle-to-
vehicle distance can also be set by operating the vehicle-to-vehicle dis-
tance switch.
Example of deceleration cruising (when the vehicle ahead is driv-
ing slower than the set speed):
When fixed speed cruising is set at 62 mph (100 km/h) and the
vehicle ahead is driving at 50 mph (80 km/h)
When a vehicle is detected running ahead of you, in the same lane, the
system automatically decelerates your vehicle. When a greater reduction
in vehicle speed is necessary, the system applies the brakes. A warning
tone warns you when the system cannot decelerate sufficiently to prevent
your vehicle from closing on the vehicle ahead.