2005 Lexus GX470 air condition

OCCUPANT RESTRAINT SYSTEMS
176
The indicator comes on when the ignition key is turned to
the ªONº position. It goes off after about 6 seconds. This
means the SRS front airbags are operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver's seat position sensor, driver's seat belt buckle switch,
front passenger occupant classification system, ªAIRBAG ONº
indicator light, ªAIRBAG OFFº indicator light, front passenger's
seat belt buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, ªRSCA OFFº indicator
light, interconnecting wiring and power sources. (For details,
see ªService reminder indicators and warning buzzersº on
page 62.) If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.

The light does not come on when the ignition key is turned
to the ªONº position or remains on for more than 6 seconds
or flashes.
 The light comes on or starts flashing while driving.
The SRS warning light and ªAIRBAG OFFº indicator light will
be illuminated if there is a malfunction in the front passenger
occupant classification system.

OCCUPANT RESTRAINT SYSTEMS
192
The indicator comes on when the ignition key is turned to
the ªONº position. It goes off after about 6 seconds. This
means the SRS side airbags and curtain shield airbags are
operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver's seat position sensor, driver's seat belt buckle switch,
front passenger occupant classification system, ªAIRBAG ONº
indicator light, ªAIRBAG OFFº indicator light, front passenger's
seat belt buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, ªRSCA OFFº indicator
light, interconnecting wiring and power sources. (For details,
see ªService reminder indicators and warning buzzersº on
page 62 for instructions.) If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.

The light does not come on when the ignition key is turned
to the ªONº position or remains on for more than 6 seconds
or flashes.
 The light comes on or starts flashing while driving.
The SRS warning light and ªAIRBAG OFFº indicator light will
be illuminated if there is a malfunction in the front passenger
occupant classification system.

OCCUPANT RESTRAINT SYSTEMS
194
FRONT PASSENGER OCCUPANTCLASSIFICATION SYSTEM
Your vehicle is equipped with a front passenger occupant
classification system. This system detects the conditions
1 Ð 4 in the table shown below, and based on these
conditions activates or deactivates the airbags. The
system monitors the weight and load on the front
passenger seat, and the seat belt buckle switch in
determining conditions 1 Ð 4.
In order for the system to detect the conditions correctly,
do not do any of the following:
 Apply a heavy load to the front passenger seat or equipment
(e.g. armrest).
 Attach a commercial seatback table, etc. to the front
passenger seatback.
 Put weight on the front passenger seat by putting your
hands or feet on the seat seatback from the rear passenger
seat.
The ªAIRBAG OFFº indicator lights will be illuminated
when the ignition switch is in the ªONº position and a child
or child restraint system is in the front passenger seat (see
table±condition 2). This indicates that in the event of a
severe frontal or passenger's side impact, the front
passenger airbag and side airbag on the front passenger
seat are deactivated and will not deploy.

OCCUPANT RESTRAINT SYSTEMS
196
Condition and operation in the front passenger occupant classification s\
ystem
Indicator/warning lightDevices
Condition detectedby the front
passenger occupant
classification systemªAIRBAG ONº and
ªAIRBAG OFFº
indicator lights
SRS
warning light
Front
passenger's seat belt
reminder light
Front
passenger airbagSide airbag
on the frontpassenger seatCurtain
shield airbag in the frontpassenger sideFront
passenger's seat belt
pretensioner
1Adult*1ªAIRBAG ONºOffFlashing*4Activated
2Child *2 or child
restraint system*3ªAIRBAG OFFºOffFlashing*4DeactivatedActivated
3UnoccupiedNot
illuminatedOffOffDeactivatedActivatedDeactivated
4There is a
malfunction in the
systemªAIRBAG OFFºOnOffDeactivatedActivated
*1: The system judges a person of adult size as an adult. When a smaller ad\
ult 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 lar ger child who has outgrown a child restraint system sits in the front pa\
ssenger 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 passe\
nger seat. A forward±facing child restraint system shoul d
only be installed on the front passenger seat when it is unavoidable. (\
See ªChild restraint systemº on page 202 as for install ing
the child restraint system.)
*
4: In the event the front passenger does not wear a seat belt.

OCCUPANT RESTRAINT SYSTEMS
197
CAUTION
To avoid potential death or serious injury when the front
passenger occupant classification system does not
detect the conditions correctly, observe the following.
Wear the seat belt properly.
 Make sure the front passenger's seat belt tab has not
been left inserted into the buckle before someone
sits in the front passenger seat.
 Make sure the ªAIRBAG ONº indicator light is
illuminated when using the seat belt extender for the
front passenger seat. If the ªAIRBAG OFFº indicator
light is illuminated, disconnect the extender tongue
from the seat belt buckle, then reconnect the seat
belt. Reconnect the seat belt extender after making
sure the ªAIRBAG ONº indicator light is illuminated.
If you use the seat belt extender while the ªAIRBAG
OFFº indicator light is illuminated, the front
passenger airbag and side airbag on the front
passenger side may not activate correctly, which
could cause death or serious injury in the event of
collision.
Do not apply a heavy load to the front passenger seat
or equipment (e.g. armrest).
 Do not put weight on the front passenger 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.
 Do not recline the front passenger seat seatback so
far that it touches a rear seat. This may cause the
ªAIRBAG OFFº indicator light to be illuminated,
which indicates that the passenger's airbags will not
deploy in the event of a severe accident. If the
seatback touches the rear seat, return the seatback
to a position where it does not touch the rear seat.
Keep the front passenger seatback as upright as
possible when the vehicle is moving. Reclining the
seatback excessively may lessen the effectiveness
of the seat belt system.

OCCUPANT RESTRAINT SYSTEMS
198
If an adult sits in the front passenger seat, the
ªAIRBAG ONº indicator light should be illuminated.
If the ªAIRBAG OFFº indicator is illuminated, 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 ªAIRBAG OFFº indicator still remain illuminated,
either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat
fully rearward.
 When it is unavoidable to install the forward±facing
child restraint system 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 ªChild restraint systemº on
page 202.)
 Do not remove the seat.
 Do not kick the front passenger seat or subject it to
severe impact. Otherwise, the SRS warning light may
come on to indicate a malfunction of the detection
system. In this case, contact your Lexus dealer
immediately.
 Child restraint systems installed on the rear seat
should not contact the front seatbacks.In addition to the precautions outlined above, the ªAIRBAG
ONº indicator light may be illuminated when a child sits in the
front passenger seat or a forward±facing child restraint system
is installed on the front passenger seat. If the ªAIRBAG OFFº
indicator light is not illuminated in these circumstances, the
front passenger airbag and side airbag on the front passenger
side are in an activated condition Ð the airbags will deploy if
an impact meets the deployment criteria. Refer to all the
cautions in this Section and ªChild restraint systemº on page
202.

OCCUPANT RESTRAINT SYSTEMS
209
5. Fully extend the shoulder belt to put it in the lock mode.
When the belt is then retracted even slightly, it cannot be
extended. To hold the seat securely, make sure the belt is in
the lock mode before letting the belt retract.
6. While pressing the convertible seat firmly against the seat
cushion and seatback, let the shoulder belt retract as far as it
will go to hold the convertible seat securely.
CAUTION
Push and pull the child restraint system in different
directions to be sure it is secure. Follow all the
installation instructions provided by its manufacturer.
7. Put a child on the child restraint system and secure the child,
complying with the instructions provided by the child restraint
system manufacturer.
The ªAIRBAG OFFº indicator light should be illuminated when
the ignition key is ªONº and the child is in the child restraint
system after following these procedures. The ªAIRBAG OFFº
indicator light indicates the SRS front passenger airbag and
side airbag on the passenger side will not deploy. If the
ªAIRBAG ONº indicator light is illuminated, remove the child
restraint system and reinstall it with the ignition key in the
ªACCº or ªLOCKº position. If the ªAIRBAG ONº indicator light
still remains illuminated when the ignition key is turned to the
ªONº position, then the SRS front passenger airbag and side
airbag on the passenger side may deploy in an accident. Do
not drive the vehicle in this condition. Remove the child
restraint system and contact your Lexus dealer.
CAUTION
When it is unavoidable to install the forward±facing
child restraint system on the front passenger seat,
install
the child restraint system on the front passenger
seat in the proper order. Otherwise, the front passenger
occupant classification system can not detect the
presence of the child restraint system and the front
passenger airbag and side airbag on the front
passenger seat could deploy.

SECTION 2 ± 1
242
AIR CONDITIONING AND AUDIO
Air conditioning
Automatic air conditioning controls243
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Rear cooler controls 260
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For vehicles equipped with Navigation System,
please refer to the separate ªNavigation SystemOwner's Manualº.