sensor TOYOTA PRIUS 2009 2.G Owners Manual

37
1-3. Opening, closing and locking the doors and back door
1
Before driving
PRIUS_U_(OM47614U)
Unlocking and locking the door
s (front door handles only)
Grip the handle to unlock the
door.
Make sure to touch the sensor on
the back of the handle.
The door cannot be unlocked for
3 seconds after the door is
locked.
Press the lock button to lock the
door.

69
1-4. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
PRIUS_U_(OM47614U)
CAUTION
■Seat belt damage and wear
● Do not attempt to install, remove, modify, disassemble or dispose of a seat
belt. Have any necessary repairs carried out by your Toyota dealer. Inap-
propriate handling of the pretensioner may cause it to activate or operate
improperly and may cause death or serious injury.
■ 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. 65)
■ 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.
■ Using a seat belt extender
● Do not wear the seat belt extender, if you can fasten the seat belt without
the extender.
● Do not use the seat belt extender when installing a child restraint system,
because the belt will not securely hold the child restraint system, increas-
ing the risk of death or serious injury in the event of a collision.
● The personalized extender may not be safe on another vehicle, when
used by another person, or at a different seating position other than the
one originally intended.

72
1-4. Adjustable components (seats, mirrors, steering wheel)
PRIUS_U_(OM47614U)
Anti-glare inside rear view mirror
Manual anti-glare inside rear view mirror
Normal position
Anti-glare position
Auto anti-glare inside rear view mirror
In the “AUTO” mode, sensors are used to detect the headlights of
vehicles behind and automatically reduces the reflected light.
ON
OFF
The indicator comes on when
automatic mode is turned ON.
The anti-glare mirror default
mode is automatic mode. The
anti-glare mirror is automati-
cally set to automatic mode
whenever the “POWER” switch
is turned ON.

73
1-4. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
PRIUS_U_(OM47614U)
■To prevent sensor error (vehicles with auto anti-glare inside rear view
mirror)
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, or result-
ing in death or serious injury.
To ensure correct functioning of the sen-
sors, do not touch or cover the sensors.

90 1-8. Safety information
PRIUS_U_(OM47614U)
Airbag system componentsFront passenger airbag
Side airbag (if equipped)
Curtain shield airbag
(if equipped)
SRS warning light
Driver airbag
Driver’s seat belt buckle
switch
Driver’s seat position sensor
Curtain shield airbag sensor
(if equipped) Side and curtain shield airbag
sensor (if equipped)
Front airbag sensor
Airbag sensor assembly
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Front passenger’s seat belt
buckle switch
Occupant detection system
(ECU and sensors)

91
1-8. Safety information
1
Before driving
PRIUS_U_(OM47614U)
Your vehicle is equipped with “ADVANCED AIRBAGS” designed
based on US motor vehicle safety standards (FMVSS208). The air-
bag system controls air
bag deployment power for the driver and front
passenger. The driver airbag system consists of the driver seat’s
position sensor etc. The front pass enger’s airbag system consists of
the front passenger occupant classification sensor etc.
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.
■ 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 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.

99
1-8. Safety information
1
Before driving
PRIUS_U_(OM47614U)
CAUTION
■
SRS airbag precautions
● Do not use seat accessories which cover the parts where the SRS side
airbags inflate as they may interf ere with inflation of the airbags.
● Do not strike or apply significant levels of force to the area of the SRS air-
bag components shown on P. 90. Doing so can cause the SRS airbags to
malfunction.
● Do not touch any of the component parts immediately after the SRS air-
bags have deployed (inflated) as they may be hot.
● If breathing becomes difficult after the SRS airbag has deployed, open a
door or window to allow fresh air in, or leave the vehicle if it is safe to do
so. Wash off any residue as soon as possible to prevent skin irritation.
● If the areas where the SRS airbags are stored, such as the steering wheel
pad and front pillar garnish, are dam aged or cracked, have them replaced
by your Toyota dealer.
● 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 SRS front
passenger airbag may not deploy in the event of a collision.
●Do not attach anything to or lean any-
thing against areas such as the dash-
board, steering wheel pad. These items
can become projectiles when SRS
driver and front passenger airbags
deploy.
● Do not attach anything to areas such as
the door, windshield glass, side door
glass, front and rear pillars, roof side
rail or assist grip.
● Do not hang coat hangers or other hard
objects on the coat hooks. All of these
items could become projectiles and
cause death or serious injury should
the SRS curtain shield airbag deploy.

153
2-3. Operating the lights and windshield wipers
2
When driving
PRIUS_U_(OM47614U)
■
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 hybrid system 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
Opening the driver’s door with the “POWER” switch in ACCESSORY mode
or OFF will turn the headlights and tail lights off.
To turn the lights on again, switch to ON mode, or turn the light switch “OFF”
once and then back to the or position.
■ Automatic headlight leveling system (Vehicle with discharge head-
lights)
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users.
■ If the indicator flashes...
It may indicate a malfunction in the system. Contact your Toyota dealer.
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 486)
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 con-
trol system to malfunction.

5
When trouble arises
421
5-1. Essential information
PRIUS_U_(OM47614U)
Event data recorder
In a crash or a near car crash eventThe SRS airbag sensor assembly contains the EDR. In a crash or a
near car crash event, this device may record some or all of the follow-
ing information:
● Gasoline engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver’s seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger’s occupant classification
The information above is intended to be used for the purpose of
improving vehicle safety performance. Unlike general data recorders,
the EDR does not record sound data such as conversation between
passengers.
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assi st in driving and maintaining
optimal vehicle performance.
Besides storing data useful for tr oubleshooting, there is a system to
record data in a crash or a near car crash event. This is called an
Event Data Recorder (EDR).

430 5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
■If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Power steering warning light
When the voltage is low or drops, the power steering warning light may
come on.
■ SRS warning light
This warning light system monitors the following:
● The airbag sensor assembly
● Front airbag sensors
● The curtain shield airbag sensors
● The side and curtain shield airbag sensor assemblies
● The driver’s seat position sensor
● Driver’s seat belt buckle switch
● The front passenger occupant classification ECU
● The pressure sensor
● The belt tension sensor
● “AIR BAG ON” and “AIR BA G OFF” indicator lights
● Front passenger’s seat belt buckle switch
● The inflators
● The warning light
● The interconnecting wiring and power sources