2009 TOYOTA PRIUS Light system

46 1-3. Opening, closing and locking the doors and back door
PRIUS_U_(OM47614U)
■Alarms and warning indicators
A combination of exterior and interior alarms are used to prevent theft of the
vehicle and unforeseeable accidents resulting from erroneous operation.
Take appropriate measures according to which warning light comes on.
(P. 423)
● When any warning lights come on.
Take appropriate measures according to which warning light comes on.
(P. 423)
The following table describes circumstances and correction procedures
when only alarms are sounded.
*: Follow the warning message displayed on the touch screen.
AlarmSituationCorrection procedure
Interior alarm:
One beep
(sounds continu-
ously)
Touch screen:
Warning mes-
sage
*
The hybrid system was not
turned off and the trans-
mission was in a position
other than “P”, and the
driver’s door is open. Pressing the “P” posi-
tion switch.
Interior alarm:
Beeps
(sound intermit-
tently) The driver’s door is
opened while the hybrid
system is in ACCESSORY
mode and the shift lever is
in the “P” position.
Turn the hybrid sys-
tem OFF and close
the driver’s door.
Exterior alarm:
One beep
(sounds for 2
seconds) The lock button has been
pressed while the hybrid
system is OFF and the
smart key is still in the
vehicle.
Take the smart key
from the vehicle and
lock the vehicle again.
Interior alarm:
One beep The battery charge of the
smart key is low. Replace the battery of
the smart key.
Exterior alarm:
One beep
(sound for 10
seconds) The lock button is pressed
when the hybrid system is
OFF and one of the doors
is half open.
Close all the doors
then lock the vehicle
again.

66 1-4. Adjustable components (seats, mirrors, steering wheel)
PRIUS_U_(OM47614U)
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also
lock if you lean forward too quickly. A slow, easy motion will allow the belt to
extend, and you can move around fully.
■ Automatic locking retractor (ALR)
When a passenger’s shoulder belt is completely extended and then
retracted even slightly, the belt is locked in that position and cannot be
extended. This feature is used to hold the child restraint system (CRS) firmly.
To free the belt again, fully retract the belt and then pull the belt out once
more. ( P. 1 1 1 )
■ Pregnant women
Obtain medical advice and wear the seat
belt in the proper way. ( P. 64)
Women who are pregnant should position
the lap belt as low as possible over the
hips in the same manner as other occu-
pants. Extend the shoulder belt com-
pletely over the shoulder and position the
belt across the chest. Avoid belt contact
over the rounding of the abdominal area.
If the seat belt is not worn properly, not
only a pregnant woman, but also the fetus
could suffer death or serious injury as a
result of sudden braking or a collision.

82
PRIUS_U_(OM47614U)
1-7. Theft deterrent system
Immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the
hybrid system from starting if the key has not been previously regis-
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
Vehicle with smart key sys-
tem:
The indicator light flashes after
the “POWER” switch has been
turned OFF mode to indicate
that the system is operating.
Vehicles without smart key
system:
The indicator light flashes after
the key has been removed
from the key slot to indicate
that the system is operating.

84
1-7. Theft deterrent system
PRIUS_U_(OM47614U)
Alarm
: If equipped
The system sounds the alarm and flashes the vehicle lights when an
attempt to steal the vehicle is detected.
■ Triggering the alarm
The alarm is triggered in the following situations.
●A locked door or back door is unlocked or opened in any way
other than using the entry function, wireless remote door lock
function or using the mechani cal key. (The doors will lock
again automatically)
● The hood is opened while t he vehicle is locked.
■ Setting the alarm system
Close the doors, hood and
lock all doors. The system will
be set automatically after 30
seconds.
The indicator light changes
from being on to flashing when
the system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors.
● Start the hybrid system. (the alarm will be deactivated or
stopped after a few seconds.)

85
1-7. Theft deterrent system
1
Before driving
PRIUS_U_(OM47614U)
■
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 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 alarm system.)
● A person inside the vehicle opens a door, the back door or hood.
● The 12 volt battery is recharged or replaced when the vehicle is locked.
■ Panic mode
When is pushed for longer than
about one second, an alarm will sound for
about 60 seconds and the vehicle lights
will flash to deter any person from trying
to break into or damage your vehicle.
To stop the alarm, push any button on the
wireless remote control.
ITY17P002

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.

101
1
1-8. Safety information
Before driving
PRIUS_U_(OM47614U)
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classifica-
tion system. This system detects the conditions of the front passen-
ger seat and activates or deactivates the devices for front passenger.
SRS warning light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger’s seat belt reminder light