2005 Lexus IS300 warning

INTERIOR EQUIPMENT
75
SportCross
SV14040
The warning reflector is in the auxiliary box.
Although the warning reflector itself is not included as an
original equipment, this auxiliary box can be used to store the
warning reflector.
TIE±DOWN HOOKS
SV14003

Sedan
SV14024

SportCross
To secure your luggage, use the tie±down hooks as
shown above.
04 06.30

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.
04 06.30

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 ªACCº or ªONº 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 ªService 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.
 The light does not come on when the ignition key is turned
to the ªACCº or ªONº position or remains on for more than 6 seconds or flashes.
 The light comes on or flashes while driving.
04 06.30

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. If an impact results in a forward
deceleration beyond the designed threshold level, the system
triggers the airbag 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.
04 06.30

OCCUPANT RESTRAINT SYSTEMS
131
SV16061
The indicator comes on when the ignition switch is turned
to the ªACCº or 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
sensors, seat belt pretensioner assemblies, inflators, warning
light, interconnecting wiring and power sources. (For details,
see ªService 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.

The light does not come on when the ignition key is turned
to the ªACCº or ªONº position or remains on for more than 6 seconds or flashes.
 The light comes on or flashes while driving.
If the light stays on, it indicates that the front airbags have a
problem. If the light flashes, the side and curtain shield airbags
have a problem.
04 06.30

OCCUPANT RESTRAINT SYSTEMS
135
SV16020

1Collision from the front
2Collision from the rear
3Vehicle rollover
The SRS side airbags and curtain shield airbags are not
generally designed to inflate if the vehicle is involved in a
front or rear collision, if it rolls over, or if it is involved in
a low±speed side collision.
SV16181

1Side airbag modules (airbag and inflator)
2Side and curtain shield airbag sensors
3SRS warning light
4Airbag sensor assembly
5Curtain shield airbag module (airbag and inflator)
The SRS side airbag and curtain shield airbag system consists
mainly of the above components, and their locations are
shown in the illustration.
The SRS side airbag and curtain shield airbag system is
controlled by the airbag sensor assembly. The airbag sensor
assembly consists of a safing sensor and airbag sensor.
In a severe side impact, the side and curtain shield airbag
sensor triggers the side airbag inflators and 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 occupants.
04 06.30

OCCUPANT RESTRAINT SYSTEMS
139
NOTICE
Do not perform any of the following changes withoutconsulting your Lexus dealer. Such changes caninterfere with proper operation of the SRS side airbagand curtain shield airbag system in some cases.
Installation of electronic devices such as a mobiletwo±way radio, cassette tape player or compact disc
player.
Modification of the suspension system.
Modification of the side structure of the passenger compartment.
Repairs made on or near the console or front seat.
SV16061
The indicator comes on when the ignition switch is turned
to the ªACCº or ªONº position. 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 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 ªService 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.
 The light does not come on when the ignition key is turned
to the ªACCº or ªONº position or remains on for more than 6 seconds or flashes.
 The light comes on or flashes while driving.
04 06.30

STARTING AND DRIVING
243
Warning tone sounds twice in any of the following cases:

You attempt to downshift the transmission when it is not
possible to downshift due to the high vehicle speed.
 You attempt to downshift from ª2º position.
 You attempt to upshift from ª5º position.
If the ªMº indicator flashes, there is a problem somewhere
in the system. In this case, it should be noted that you
cannot downshift or upshift the transmission using the
switches on the steering wheel. Consult with your Lexus
dealer as soon as possible. The transmission works
exactly in the same way as when you put the selector lever
in the ªDº position.
CAUTION
Be careful when downshifting on a slippery surface. The
abrupt change in engine speed could cause the vehicle
to skid or spin.
(c) Using engine braking
SV31023
To use the braking power of the engine, downshift the
transmission in the way described below:
1Shift into the ªMº position, and you push the transmission
down shift switch. The transmission will downshift to
fourth gear and engine braking will be obtained. This is
effective only when you are driving in the ªDº position or
in fifth gear (ªMº position).
When the cruise control is being used, even if you
downshift from ª5º to ª4º, engine braking will not be
enabled because the cruise control is not cancelled. If you
need to decrease the vehicle speed, see page 251.
2Shift into the ª3º position. The transmission will downshift
to third gear when the vehicle speed is or becomes lower
than the speed listed below and stronger engine braking
will be obtained.
04 06.30