airbag Lexus IS300 2002 Electrical Components / LEXUS 2002 IS300 WAGON OWNER'S MANUAL (OM53423U)

2.
INTRODUCTION
ii
New vehicle warranty
Your new vehicle is covered by the following Lexus limited
warranties:

New vehicle warranty

Emission control systems warranty

Others
For further information, please refer to the ºOwner's Guideº,
ºOwner's Manual Supplementº or ºWarranty Bookletº.
Your responsibility for maintenance
It is the owner's responsibility to make sure the specified
maintenance is performed. Section 5 of this Owner's Manual
gives details of these maintenance requirements. Included in
Section 6 is general maintenance. For scheduled
maintenance information, pl ease refer to the ºOwner's Manual
Supplement/Scheduled Maintenanceº.
Accessories, spare parts and modification of
your Lexus
A wide variety of non±genuine spare parts and accessories for
Lexus vehicles are currently available in the market. You
should know that Toyota does not warrant these products and
is not responsible for their performance, repair, or
replacement, or for any damage they may cause to, or adverse
effect they may have on, your Lexus vehicle. This vehicle should not be modified with non±genuine Lexus
products. Modification with non±genuine Lexus products
could af
fect its performance, safety or durability, and may even
violate governmental regulations. In addition, damage or
performance problems re sulting from the modification may not
be covered under warranty.
Spark ignition system of your Lexus
The spark ignition system in your Lexus meets all
requirements of the Canadian Interference±Causing
Equipment Standard.
Installation of a mobile two±way radio system
As the installation of a mobile two±way radio system in your
vehicle could affect electronic systems such as the multiport
fuel injection system/sequential multiport fuel injection system,
cruise control system, anti±lock brake system, SRS airbag
system and seat belt pretensioner system, be sure to check
with your Lexus dealer for precautionary measures or special
instructions regarding installation.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your
Lexus contain explosive chemicals. If the vehicle is scrapped
with the airbags and seat belt pretensioners left as they are,
this may cause an accident such as fire. Be sure to have the
systems of the SRS airbag and seat belt pretensioner removed
and disposed of by a qualified service shop or by your Lexus
dealer before you scrap your vehicle.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
45
(b) Driver's Seat Belt Reminder Light andBuzzer
This light and buzzer remind you to buckle up the driver's seat
belt.
Once the ignition key is turned to ºONº or ºSTARTº, the
reminder light flashes and buzzer sounds if the driver's seat
belt is not fastened. Unless the driver fastens the belt, the light
stays flashing and the buzzer stops after about 4 to 8 seconds.
(c) Front Passenger's Seat Belt Reminder Light
This light reminds you to buckle up the front passenger's seat
belt.
Once the ignition key is turned to ºONº or ºSTARTº, the
reminder light flashes if a passenger sits in the front passenger
seat and does not fasten the seat belt. Unless the front
passenger fastens the belt, the light stays flashing. However,
if a front passenger uses an additional seat cushion, the light
may not flash even when the seat belt is not buckled up.
If luggage load is placed on the front passenger seat,
depending on its weight and how it is placed on the seat,
built±in sensors in the seat cushion may detect the pressure,
causing the reminder light to come on.
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ºACCº or ºONº position. It goes off after about 6
seconds. This means the SRS airbags and front seat belt
pretensioners are operating properly.
The SRS warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, front seat belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and power sources.
If either of the following conditions occurs, this indicates a
malfunction somewhere in the parts monitored by the warning
light system. Contact your Lexus dealer as soon as possible
to service the vehicle.
 When the ignition key 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.
If the light stays on, it indicates that the driver and front
passenger airbags fail. If the light flashes, the side and curtain
shield airbags and/or seat belt pretensioners fail.

SECTION 1 ± 6
87
INSTRUMENTS AND CONTROLS
Comfort adjustment
Front seats88
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . .
Fold±down rear seats 96
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

Trunk storage extension 98
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrests 99
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . .
Head restraints 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
Tilt steering wheell 102
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
Outside rear view mirrors 102
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside rear view mirror 104
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belts 109
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . .
SRS airbags 121
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .
Child restraint 135
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. . . . . .

COMFORT ADJUSTMENT
88
FRONT SEATS
(POWER TYPE)
Front seat precautions
CAUTION
The side airbags are installed in the driver and front
passenger seats. Observe the following precautions.
 Do not lean over the front door when the vehicle is in
use. When the side airbag inflates with considerable
speed and force; Otherwise, you may be killed or
severely injured.
 Do not modify or replace the seats or the upholstery
of the seats with side airbags. Such changes may
disable the system, or cause the side airbags to
inflate accidentally, resulting in death or serious
injury. Consult your Lexus dealer if you insist on
modifications of this kind.
 Do not use accessories for the seats which cover the
parts where the side airbags inflate. Such
accessories may prevent the side airbags from
activating correctly, causing death or serious injury.
Seat adjustment precautions
Adjust the driver's seat so that the foot pedals, steering wheel
and instrument panel controls are within easy reach of the
driver.
CAUTION
Do not adjust the seat while the vehicle is moving as
the seat may unexpectedly move and cause the
driver to lose control of the vehicle.
 Be careful that the seat does not hit a passenger,
luggage or the rear seat.
NOTICE
Do not operate the control switch in more than one
dimension at a time. It may cause electrical overload.

COMFORT ADJUSTMENT
92
FRONT SEATS
(MANUAL TYPE)
Front seat precautions
CAUTION
The side airbags are installed in the driver and front
passenger seats. Observe the following precautions.
 Do not lean over the front door when the vehicle is in
use. When the side airbag inflates with considerable
speed and force; Otherwise, you may be killed or
severely injured.
 Do not modify or replace the seats or the upholstery
of the seats with side airbags. Such changes may
disable the system, or cause the side airbags to
inflate accidentally, resulting in death or serious
injury. Consult your Lexus dealer if you insist on
modifications of this kind.
 Do not use accessories for the seats which cover the
parts where the side airbags inflate. Such
accessories may prevent the side airbags from
activating correctly, causing death or serious injury.
Seat adjustment precautions
Adjust the driver's seat so that the foot pedals, steering wheel
and instrument panel controls are within easy reach of the
driver.
CAUTION
Do not adjust the seat while the vehicle is moving as
the seat may unexpectedly move and cause the
driver to lose control of the vehicle.
 Be careful that the seat does not hit a passenger,
luggage or the rear seat.
 After adjusting the seat position, try sliding it forward
and backward to make sure it is locked in position.
 After adjusting the seatback, exert body pressure to
make sure it is locked in position.
 Do not put objects under the seats. The objects may
interfere with the seat±lock mechanism or
unexpectedly push up the seat position adjusting
lever; the seat may suddenly move, causing the
driver to lose control of the vehicle.
 While adjusting the seat, do not put your hands under
the seat or near the moving parts. You may catch and
injure your hands of fingers.

COMFORT ADJUSTMENT
109
SEAT BELTS
Seat belt precautions
Lexus strongly urges that the driver and passengers in the
vehicle be properly restrained at all times with the seat belts
provided. Failure to do so could increase the chance of injury
and/or the severity of injury in accidents.
Child. Use a child restraint system appropriate for the child
until the child becomes large enough to properly wear the
vehicle's seat belts. See ºChild restraintº on page 135 for
details.
If a child is too large for a child restraint system, the child should
sit in the rear seat and must be restrained using the vehicle's
seat belt. According to accident statistics, the child is safer
when properly restrained in the rear seat than in the front seat.
If a child must sit in the front seat, the seat belts should be worn
properly. Do not let the child sit on your lap. It does not provide
sufficient restraint. If an accident occurs and the seat belts are
not worn properly, the force of the rapid inflation of the airbag
may cause severe injury to the child.
Do not allow the child to stand up or kneel on either rear or front
seats. An unrestrained child could suffer serious injury or
death during emergency braking or a collision.
Pregnant woman. Lexus recommends the use of a seat belt.
Ask your doctor for specific recommendations. The lap belt
should be worn securely and as low as possible over the hips
and not on the waist. Injured person. Lexus recommends the use of a seat belt.
Depending on the injury, first check with your doctor for specific
recommendations.CAUTION
Persons should ride in their seats properly wearing
their seat belts whenever the vehicle is moving.
Otherwise, they are much more likely to suffer serious
bodily injury or death in the event of sudden braking or
a collision.
When using the seat belts, observe the following:

Use the belt for only one person at a time. Do not use
a single belt for two or more people ± even children.
 Avoid reclining the seatbacks too much. The seat
belts provide maximum protection when the
seatbacks are in the upright position. (See
ºAdjusting seatback angleº on page 94.)
 Be careful not to damage the belt webbing or
hardware. Take care that they do not get caught or
pinched in the seat or doors.
 Inspect the belt system periodically. Check for cuts,
fraying, and loose parts. Damaged parts should be
replaced. Do not disassemble or modify the system.

COMFORT ADJUSTMENT
11 8
Front seat belt pretensioners
SV16151
The driver and front passenger's seat belt pretensioners
are designed to be activated in response to a severe
frontal impact.
When the airbag sensor detects the shock of a severe frontal
impact, the front seat belts are quickly drawn back by the
retractor so that the belts snugly restrain the front seat
occupants.
The front seat belt pretensioners are activated even with no
passenger in the front seat.
Collisions occurring at certain speeds and angles may cause
the seat belt pretensioners and SRS airbags not to operate all
together.
SV16061
This indicator comes on when the ignition key is turned to
the ºACCº or ºONº position. It goes off after about 6
seconds. This means the front seat belt pretensioners are
operating properly.
The warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, front seat belt pretensioner assemblies, inflators,
warning light, interconnecting wiring and power sources. (For
details, see ºService reminder indicators and warning buzzersº
on page 42.)

COMFORT ADJUSTMENT
11 9
SV16068

1SRS warning light
2Front seat belt pretensioner assemblies
3Airbag sensor assembly
4Front airbag sensors
The front seat belt pretensioner system consists mainly of the
above components and their locations are shown in the
illustration.
The front seat belt pretensioners are controlled by the airbag
sensor assembly. The airbag sensor assembly consists of a
safing sensor and airbag sensor.
When the front seat belt pretensioners are activated, an
operating noise may be heard and a small amount of
smoke±like gas may be released. This gas is harmless and
does not indicate that a fire is occurring.
Once the front seat belt pretensioners have been activated, the
seat belt retractors remain locked.
CAUTION
Do not modify, remove, strike or open the front seat belt
pretensioner assemblies, airbag sensor or surrounding
area or wiring. Doing any of these may cause sudden
operation of the front seat belt pretensioners or disable
the system, which could result in death or serious
injury.
Failure to follow these instruction can result in death or
serious injury.

COMFORT ADJUSTMENT
120
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the front 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 front seat belt pretensioner system has a service
reminder indicator to inform the driver of operating problems.
If any of the following conditions occurs, this indicates a
malfunction of the airbags or pretensioners. Contact your
Lexus dealer as soon as possible to service the vehicle.
 The light does not come on when the ignition key is turned
to the ºACCº or ºONº position, or remains on.
 The light comes on or flashes while driving.
 If either front seat belt does not retract or cannot be pulled
out due to a malfunction or activation of the relevant front
seat belt pretensioner.

COMFORT ADJUSTMENT
121
SS16116
In the following cases, contact your Lexus dealer as soon as
possible.
The front part of the vehicle (shaded in the illustration) was
involved in an accident that was not severe enough to cause
the front seat belt pretensioners to operate.
 Either front seat belt pretensioner assembly or surrounding
area is scratched, cracked, or otherwise damaged.
SRS AIRBAGS
The SRS (Supplemental Restraint System) front airbags
are designed to provide further protection for the driver
and front passenger in addition to the primary safety
protection provided by the seat belts.
SV16152

Driver and front passenger airbags
In response to a severe frontal impact, the driver and front
passenger airbags work together with the seat belts to
help reduce injury by inflating. The driver and front
passenger airbags help to reduce injuries mainly to the
driver's or front passenger's head or chest caused by
directly hitting the steering wheel or dashboard.
The front passenger airbag is activated even with no
passenger in the front seat.
Be sure to wear your seat belt properly.