2006 TOYOTA PRIUS light

76
22p239
The SRS side airbag and curtain shield
airbag system consists mainly of the fol-
lowing components, and their locations are
shown in the illustration.1. SRS warning light
2. Front passenger occupant classification indicator light
3. Curtain shield airbag modules (airbag and inflator)
4. Front passenger occupant classification system (ECU and sensors)
5. Side airbag modules (airbag and inflator)
6. Curtain shield airbag sensors
7. Side and curtain shield airbag sensors 8. Passenger ’s seat belt buckle switch
9. Airbag sensor assembly
The SRS side airbag and curtain shield
airbag system is controlled by the airbag
sensor assembly. The airbag sensor as-
sembly consists of a safing sensor and
airbag sensor.
In a severe side impact, the side and
curtain shield airbag sensor and/or the
curtain shield airbag sensor trigger(s) the
side airbag inflators and/or the curtain
shield airbag inflators. At this time a
chemical reaction in the inflators quickly
fills the airbags with non
−toxic gas to help
restrain the lateral motion of the occu-
pants.
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non −toxic gas. This
does not indicate a fire. This smoke may
remain inside the vehicle for some time,
and may cause some minor irritation to
the eyes, skin or breathing. Be sure to
wash off any residue as soon as possible
to prevent any potential skin irritation with
soap and water. If you can safely exit
from the vehicle, you should do so imme-
diately.

80
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS side airbag and curtain shield
airbag system in some cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the side structure of
the passenger compartment
 Repairs made on or near the con-
sole or front seat
22p010a
This indicator comes on when the “IG
ON” mode is enabled. It goes off after
about 6 seconds. This means the SRS
side airbags and curtain shield airbags
are operating properly.
The warning light system monitors the air-
bag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors,
driver ’s seat position sensor, driver ’s seat
belt buckle switch, front passenger ’s seat
belt buckle switch, seat belt pretensioner
assemblies, interconnecting wiring and
power sources. (For details, see “Service
reminder indicators and warning buzzers”
on page 125.) If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
“IG
−ON” mode is enabled or remains
on for more than 6 seconds.
The light comes on while driving.

82
22p241a
The front passenger occupant classifi-
cation indicator light indicates the ac-
tuation of the front passenger airbag
and front passenger ’s seat belt preten-
sioner.
The indicator light will indicate “OFF”
when the ignition key is turned to the
“ON” position with the condition 2. in the
table shown below.
If the front passenger occupant classifica-
tion system determines that a person of
adult size sits in the front passenger seat
but the “OFF” indicator is illuminated, one
of the following is likely to have occurred:
A rear passenger lifts the front passen-
ger seat cushion with their legs.
Objects are placed under the front pas-
senger seat.
The front passenger seatback is in
contact with the rear seat.
To ensure the system correctly detects an
adult sitting in the front passenger seat,
make sure the above do not occur.
Make sure that the “ON” indicator is illu-
minated when an adult is seated in the
front passenger seat. If the “OFF” indica-
tor is illuminated, ask the passenger to sit
up straight, well back in the seat, and
with the seat belt worn correctly. If the
“OFF” indicator still remains illuminated,
either ask the passenger to move to the
rear seat, or if that is not possible, move
the front passenger seat fully rearward. The front passenger occupant classifi-
cation indicator light will indicate “ON”
and “OFF” when the “IGON” mode is
enabled. After about 4 seconds, it will
go off. After that, the front passenger
occupant classification system operates
and judges whether to indicate “ON” or
“OFF”.

83
22p240a
The SRS warning light will come on
and front passenger occupant classifi-
cation indicator light will indicate
“OFF” if there is a malfunction in the
front passenger occupant classification
system.

84
Condition and operation in the front passenger occupant classification system
Condition detected by
the front passenger
occupant classification
system
Indicator/ warning lightDevices
Front passenger
occupant
classification
indicator lightSRS warning
lightFront
passenger’s seat belt
reminder lightFront
passenger airbagSide airbag on
the front
passenger seatCurtain shield
airbag in the front
passenger sideFront
passenger’s seat belt
pretensioner
1. Adult*1“ON”OffFlashing*4Activated
2. Child*2 or child
restraint system*3“OFF”OffFlashing*4Deactivated
Activated
Activated
3. UnoccupiedNot illuminatedOffOffDeactivatedDeactivated
4. There is a malfunction in the system“OFF”OnOffDeactivatedActivated
*1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may
recognize him/her as a child depending on his/her physique and posture.
*2: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/her
as an adult depending on his/her physique or posture.
*3: Never install a rear −facing child restraint system on the front passenger seat. A forward− facing child restraint system should only
be installed on the front passenger seat when it is unavoidable. (See “Child restraint” on page 86 as for installing the child restraint
system.)
*4: When the front passenger does not wear a seat belt.

85
CAUTION
To avoid potential death or serious
injury when the front passenger occu-
pant classification system does not
detect the conditions correctly, ob-
serve the following:
Make sure the front passenger oc-
cupant classification indicator light
indicates “ON” when using the seat
belt extender for the front passen-
ger seat. If the indicator light indi-
cates “OFF”, disconnect the extend-
er tongue from the seat belt buckle,
then reconnect the seat belt. Recon-
nect the seat belt extender after
making sure the indicator light indi-
cates “ON”. If you use the seat belt
extender while the indicator light
indicates “OFF”, the front passen-
ger airbag may not activate correct-
ly, which could cause death or seri-
ous injury in the event of collision.
Do not recline the front passenger
seatback so far that it touches a
rear seat. This may cause the
“OFF” indicator to be illuminated,
which indicates that the passen-
ger’s airbags will not deploy in the
event of a severe accident. If the
seatback touches the rear seat, re-
turn the seatback to a position
where it does not touches the rear
seat.
Keep the front passenger seatback
as upright as possible when the ve-
hicle is moving. Reclining the seat-
back excessively may lessen the ef-
fectiveness of the seat belt system.
If an adult sits in the front passen-
ger seat, the occupant classification
indicator light should indicate “ON”.
If the “OFF” indicator is illumi-
nated, ask the passenger to sit up
straight, well back in the seat, feet
on the floor, and with the seat belt
worn correctly. If the “OFF” indica-
tor still remains illuminated, either
ask the passenger to move to the
rear seat, or if that is not possible,
move the front passenger seat fully
rearward.
Wear the seat belt properly.
Make sure the front passenger ’s
seat belt tab has not been left in-
serted into the buckle before some-
one sits in the front passenger
seat.
Do not apply a heavy load to the
front passenger seat.
Do not put weight on the front pas-
senger seat by putting your hands
or feet on the front passenger seat
seatback from the rear passenger
seat.
Do not let a rear passenger lift the
front passenger seat with their feet
or press on the seatback with their
legs.
Do not put objects under the front
passenger seat.
Child restraint systems installed on
the rear seat should not contact the
front seatbacks.

86
When it is unavoidable to install the
forwardfacing child restraint sys-
tem on the front passenger seat,
install the child restraint system on
the front passenger seat in the
proper order. (As for the installation
order, see “—Installation with
3point type seat belt” on page 89.)
Do not remove the front seats.
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may come on to indicate a malfunc-
tion of the detection system. In this
case, contact your Toyota dealer im-
mediately.
The front passenger occupant classifica-
tion indicator light may indicate “ON” (the
front passenger airbag may deploy) even
if observing the above cautions, when a
child sits in, or a forward−facing child re-
straint system is installed on the front
passenger seat. Refer to all the cautions
in “SRS driver and front passenger air-
bags” and “SRS side airbags and curtain
shield airbags” on pages 66 and 74, and
“Child restraint” described below. Toyota strongly urges the use of ap-
propriate child restraint systems for
children.
The laws of all 50 states in the U.S.A.
and Canada now require the use of a
child restraint system.
Your vehicle conforms to SAEJ1819.
If a child is too large for a child restraint
system, the child s
hould sit in the rear
seat and must be restrained using the
vehicle’s seat belt. See “Seat belts” on
page 58 for details.
CAUTION
For effective protection in automo-
bile accidents and sudden stops, a
child must be properly restrained,
using a seat belt or child restraint
system depending on the age and
size of the child. Holding a child in
your arms is not a substitute for a
child restraint system. In an acci-
dent, the child can be crushed
against the windshield, or between
you and the vehicle’s interior.
Toyota strongly urges use of a
proper child restraint system which
conforms to the size of the child,
installed on the rear seat. Accord-
ing to accident statistics, the child
is safer when properly restrained in
the rear seat than in the front seat.
Never install a rearfacing child re-
straint system on the front passen-
ger seat even if the front passenger
occupant classification indicator
light indicates “OFF”. In the event
of an accident, the force of the rap-
id inflation of the front passenger
airbag can cause death or serious
injury to the child if the rearfacing
child restraint system is installed
on the front passenger seat.
Child restraint—
—Child restraint precautions

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22p034c
(A) INFANT SEAT INSTALLATION
An infant seat must be used in rear
facing position only.
22p018c
CAUTION
Never install a rearfacing child re-
straint system on the front passen-
ger seat even if the front passenger
occupant classification indicator
light indicates “OFF”. In the event
of an accident, the force of the rap-
id inflation of the front passenger
airbag can cause death or serious
injury to the child if the rearfacing
child restraint system is installed
on the front passenger seat.
22p045e
Do not install a child restraint sys-
tem on the rear seat if it interferes
with the lock mechanism of the
front seats. Otherwise, the child or
front seat occupant(s) may be killed
or seriously injured in case of sud-
den braking or a collision.
If the driver ’s seat position does
not allow sufficient space for safe
installation, install the child re-
straint system on the rear right
seat.
—Installation with 3point
type seat belt