2004 Lexus IS300 light

OCCUPANT RESTRAINT SYSTEMS
100
Slightly recline the back of the seat. Although vehicle
designs vary, many drivers can achieve the 250 mm
(10 in.) distance, even with the driver seat all the way
forward, simply by reclining the back of the seat
somewhat. If reclining the back of your seat makes it
hard to see the road, raise yourself by using a firm,
non-slippery cushion, or raise the seat if your vehicle
has that feature.
 If your steering wheel is adjustable, tilt it downward.
This points the airbag toward your chest instead of
your head and neck.
The seat should be adjusted as recommended by
NHTSA above, while still maintaining control of the foot
pedals, steering wheel, and your view of the instrument
panel controls.
Front passenger seat
CAUTION
The SRS front passenger airbag also deploys with
considerable force, and can cause death or serious
injury especially if the front passenger is very close to
the airbag. The front passenger seat should be as far
from the airbag as possible with the seatback adjusted,
so the front passenger sits upright.
Front seats (with SRS side airbags)
CAUTION
The SRS side airbags are installed in the driver and front
passenger seats. Observe the following precautions.
 Do not lean against the front door when the vehicle
is in use, since the side airbag inflates with
considerable speed and force. Otherwise, you may
be killed or severely injured.
 Do not use seat accessories which cover the area
where the side airbags inflate. Such accessories may
prevent the side airbags from activating correctly,
causing death or serious injury.
 Do not modify or replace the seats or the upholstery
of the seats equipped with side airbags. Such
change may prevent the side airbag system from
activating correctly, disable the system, or cause the
side airbags to inflate accidentally, res ulting in death
or serious injury.
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OCCUPANT RESTRAINT SYSTEMS
102
Adjusting seat position
SS16003
Hold the center of the lever and pull it up. Then slide the
seat to the desired position with slight body pressure and
release the lever.
Adjusting seatback angle
SS16005
Lean forward and pull the lever up. Then lean back to the
desired angle and release the lever.
CAUTION
To reduce the risk of sliding under the lap belt during a
collision, avoid reclining the seatback any more than
needed. The seat belts provide maximum protection in
a frontal or rear collision when the driver and the front
passenger are sitting up straight and well back in the
seats. If you are reclined, the lap belt may slide past
your hips and apply restraint forces directly to the
abdomen. In the event of a frontal collision, the more the
seat is reclined, the greater the risk of personal injury.
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OCCUPANT RESTRAINT SYSTEMS
11 2
Fastening front and rear seat belts
SV16013
Adjust the seat as needed and sit up straight and well back
in the seat. To fasten your belt, pull it out of the retractor
and insert the tab into the buckle.
You will hear a click when the tab locks into the buckle.
The seat belt length automatically adjusts to your size and the
seat position.
The retractor will lock the belt during a sudden stop or on
impact. It also may lock if you lean forward too quickly. A slow,
easy motion will allow the belt to extend, and you can move
around freely.
When a passenger's shoulder belt is completely extended and
is 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 securely. (For details, see ºChild restraintº on
page 141.) To free the belt again, fully retract the belt and then
pull the belt out once more. If the seat belt cannot be pulled out of the retractor, firmly pull
the belt and release it. You will then be able to smoothly pull
the belt out of the retractor.
CAUTION

After inserting the tab, make sure the tab and buckle
are locked and that the belt is not twisted.
 Do not insert coins, clips, etc. in the buckle as this
may prevent you from properly latching the tab and
buckle.
 If the seat belt does not function normally,
immediately contact your Lexus dealer. Do not use
the seat until the seat belt is fixed, because it cannot
protect an adult occupant or your child from injury.
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OCCUPANT RESTRAINT SYSTEMS
11 4
SV16016
To release the belt, press the buckle release button and
allow the belt to retract.
If the belt does not retract smoothly, pull it out and check for
kinks or twists. Then make sure it remains untwisted as it
retracts.
Rear center seat belt
SV16087

1Buckle with light gray buckle -release button
2Buckle with red buckle - release button
The rear center seat belt is a 3-point type restraint with 2
buckles. Both seat belt buckles must be correctly located and
securely latched for proper operation.
Make sure that buckle (with light gray buckle-release button)
is securely latched for ready use of the center seat belt.
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OCCUPANT RESTRAINT SYSTEMS
11 5
SV16088
Two buckles and tabs for rear center seat belt.
The 2 buckles for the rear center seat belt are distinguished
with colors of the buckle release button. Also the 2 tabs have
different shape for its end so that the belt is not buckled in the
wrong place.
1Buckle with light gray buckle-release button -
Properly matches with concave end tab
2Buckle with red buckle-release button - Properly
matches with round end tab
CAUTION
Make sure the both buckles are correctly located and
securely latched. Failure to properly match the buckle
and tab may cause serious injury in case of an accident
or a collision.
SV16089
To release the concave end tab, insert the key into the hole on
buckle (with light gray buckle-release button ) and allow the
belt to retract.
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OCCUPANT RESTRAINT SYSTEMS
121
SV16068

1SRS warning light
2Seat belt pretensioner assemblies
3Airbag sensor assembly
4Front airbag sensors
The seat belt pretensioner system consists mainly of the
above components, and their locations are shown in the
illustration.
The seat belt pretensioners are controlled by the airbag sensor
assembly. The airbag sensor assembly consists of a safing
sensor and airbag sensor.
When the seat belt pretensioners are activated, an operating
noise may be heard and a small amount of non-toxic gas may
be released. This does not indicate that a fire is occurring. This
gas is normally harmless.
Once the seat belt pretensioners have been activated, the seat
belt retractors remain locked.
CAUTION
Do not modify, remove, strike or open the seat belt
pretensioner assemblies, airbag sensor or surrounding
area or wiring. Failure to follow these instructions may
prevent the seat belt pretensioners from activating
correctly, cause sudden operation of the system or
disable the system, which could result in death or
serious injury. Consult your Lexus dealer about any
repair and modification.
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OCCUPANT RESTRAINT SYSTEMS
122
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the seat beltpretensioners in some cases.
Installation of electronic devices such as a mobiletwo-way radio, cassette tape player or compact disc
player.
Repairs on or near the front seat belt retractor assemblies.
Modification of the suspension system.
Modification of the front end structure.
Attachment of a grille guard (bull bar, kangaroo bar,etc.), snowplow, winches or any other equipment tothe front end.
Repairs made on or near the front fenders, front endstructure or console.
SV16061
This indicator comes on when the ignition switch is turned
to the ºACCº or ºONº position. It goes off after about 6
seconds. This means the seat belt pretensioners are
operating properly.
The warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources. (For details,
see ºService reminder indicators and warning buzzersº on
page 48.)
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.
 When the ignition switch is turned to the ºACCº or ºONº
position, the light does not come on, remains on or flashes.
 The light comes on or starts flashing while driving.
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OCCUPANT RESTRAINT SYSTEMS
127
SV16180

1Airbag module for front passenger (airbag and inflator)
2Airbag module for driver (airbag and inflator)
3SRS warning light
4Airbag sensor assembly
5Front airbag sensors
The SRS front airbag system consists mainly of the above
components, and their locations are shown in the illustration.
The airbag sensor assembly consists of a safing sensor and
airbag sensors.
The front airbag sensors constantly monitor the forward
deceleration of the vehicle. In an impact results in a forward
deceleration beyond the designed threshold level, the system
triggers the ai rbag inflators. At this time a chemical reaction in
the inflators very quickly fills the airbags with non-toxic gas to
help restrain the forward motion of the occupants. The front
airbags then quickly deflate, so that there is no obstruction of
the driver's vision should it be necessary to continue driving. When the airbags inflate, they produce a 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 immediately.
Deployment of the airbags happens in a fraction of a second,
so the airbags must inflate with considerable force. While the
system is designed to reduce serious injuries, primarily to the
head and chest, it may also cause other, less severe injuries
to the face, chest, arms and hands. These are usually in the
nature of minor burns or abrasions and swelling, but the force
of a deploying airbag can cause more serious injuries,
especially if an occupant's hands, arms, chest or head is in
close
proximity to the airbag module at the time of deployment.
This is why it is important for the occupant to; avoid placing any
object or part of the body bet ween the occupant and the airbag
module; sit straight and well back into the seat; wear the
available seat belt properly; and sit as far as possible from the
airbag module, while still maintaining control of the vehicle.
Parts of the airbag module (steering wheel hub, airbag cover
and inflator) may be hot for several minutes after deployment,
so do not touch! The airbags inflate only once. The windshield
may be damaged by absorbing some of the force of the
inflating airbag.
03 07.09