2013 TOYOTA SIENNA sensor

139
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_OM_OM45472U_(U)
Adjusting the height of rear view mirror
Adjust the height of the rear view
mirror by moving it up and down.
■To prevent sensor error (vehicles 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 cause an accident,
resulting in death or serious injury.
To ensure that the sensors operate prop-
erly, do not touch or cover them.

170 1-7. Safety information
SIENNA_OM_OM45472U_(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

171
1-7. Safety information
1
Before driving
SIENNA_OM_OM45472U_(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.

272 2-3. Operating the lights and wipers
SIENNA_OM_OM45472U_(U)
■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.
For the U.S.A.: Daytime running lights can be turned off by operating the
headlight switch.
● Compared to turning on the headlights, the daytime running light system
offers greater durability and consumes less electricity, so it can help
improve fuel economy.
■ Headlight control sensor (if equipped)
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.

274 2-3. Operating the lights and wipers
SIENNA_OM_OM45472U_(U)
■Customization that can be configured at Toyota dealer or by the multi-
information display
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 831)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not run-
ning.

275
2-3. Operating the lights and wipers
2
When driving
SIENNA_OM_OM45472U_(U)
Automatic High Beam
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to
assess the brightness of streetligh ts, the lights of oncoming and
preceding vehicles, etc., and automatically turns high beam on or off
as necessary.
■ Activating the Automatic High Beam system
Push the lever away from you
with the headlight switch in the position when the
“ENGINE START STOP”
switch is in IGNITION ON
mode (vehicles with a smart
key system) or the engine
switch is in the “ON” position
(vehicles without a smart key
system).
The Automatic High Beam indi-
cator will come on when the
headlights are turned on auto-
matically to indicate that the
system is active.

278 2-3. Operating the lights and wipers
SIENNA_OM_OM45472U_(U)
■Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning high beam on or off manually if nec-
essary.
■ Camera sensor detection information
● High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve.
• When the vehicle is cut in front of by another.
● High beam may be turned off if an oncoming vehicle that is using fog
lights without using the headlights is detected.
● Houselights, streetlights, red traffic signals, and illuminated billboards or
signs may cause the high beam to turn off.
● The following factors may affect the amount of time taken to turn high
beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and
preceding vehicles
• Road conditions (wetness, ice, snow etc.)
• The number of passengers and amount of baggage
● High beam may be turned on or off when unexpected by the driver.

279
2-3. Operating the lights and wipers
2
When driving
SIENNA_OM_OM45472U_(U)
●
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestri-
ans to the high beam. Therefore, you should consider turning the high
beam on or off manually rather than relying on the Automatic High Beam
system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or ca mera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is lifting or tilting, due to a flat tire, a trailer being towed etc.
• The Automatic High Beam indicator is flashing.
• The high beam and low beam are repeatedly being switched between in an abnormal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.