2003 Lexus GS300 airbag

Your vehicle is equipped with a crash sensing and diagnostic
module, which will record the use of the seat belt restraint
system by the driver when the curtain shield airbags are
inflated.
CAUTION
The curtain shield airbags inflate with considerable
force. To avoid potential death or serious injury when
they inflate, the driver and front passenger must:
Wear their seat belts properly.
Remain properly seated with their back upright and
against the seat at all times.
16G022
The indicator comes on when the ignition key is turned to
the ºONº position. It goes off after about 6 seconds. This
means the SRS airbags are operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensors, occupant detection sensor, seat belt buckle switch,
front seat belt pretensioner assemblies, inflators, warning light,
interconnecting wiring and power sources. (For details, see
ºService reminder indicators and warning buzzersº on page
40.)
The front airbags are designed to deploy in severe
(usually frontal) collisions where the magnitude and
duration of the forward deceleration of the vehicle
exceeds the designed threshold level.
The front airbags will work if the severity of the impact is above
the designed threshold level, comparable to an approximate
25 km/h (15 mph) collision in the U.S.A. and 30 km (18 mph)
collision in Canada when the vehicle has the impact straight
into a fixed barrier that does not move or deform.

However, this threshold velocity will be considerably higher if
the vehicle strikes an object, such as a parked vehicle or sign
pole, which can move or deform on impact, or if the vehicle is
involved in an underride collision (e.g. a collision in which the
front of the vehicle ºunderridesº, or goes under, the bed of a
truck, etc.).
It is possible that in some collisions where the forward
deceleration of the vehicle is very close to the designed
threshold level, the SRS airbags and the seat belt
pretensioners may not activate together.
For the safety of all occupants, always wear your seat belts
properly.
16G024a

1Collision from the side 2Collision from the rear
3Vehicle rollover
The front airbags are generally not designed to inflate if
the vehicle is involved in a side or rear collision, if it rolls
over, or if it is involved in a low±speed frontal collision.
But, whenever a collision of any type causes sufficient
forward deceleration of the vehicle, deployment of the
front airbags may occur.

16G025a

1Collision from the side at an angle
2Collision from the side to the vehicle body other
than the passenger compartment
The side and curtain shield airbags may not inflate if the
vehicle is subjected to a collision from the side at certain
angles, or a collision to the side of the vehicle body other
than the passenger compartment as shown in the
illustration.
16G109

1Collision from the front
2Collision from the rear
3Vehicle rollover
The side and curtain shield airbags are generally not
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.

16G108

1Hitting a curb, edge of pavement or hard material
2Falling into or jumping over a deep hole
3Landing hard or vehicle falling
The SRS airbags may also deploy if a serious impact
occurs to the underside of your vehicle. Some examples
are shown in the illustration.
16G144c

1Side airbag module (airbag and inflator)
2Airbag module for front passenger
(airbag and inflator)
3Side and curtain shield airbag sensor assembly
4Airbag module for driver (airbag and inflator)
5SRS warning light
6Airbag sensor assembly
7Front airbag sensor
8Curtain shield airbag module (airbag and inflator)
9Occupant detection sensor
10Seat belt buckle switch
The SRS airbag system mainly consists 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. In a severe side impact, the side
and curtain shield airbag sensor triggers the side and curtain
shield airbag inflator. At this time a chemical reaction in the
inflators very quickly fills the airbags with non±toxic gas to help
restrain the forward or lateral motion of the occupants. The
airbags then quickly deflate, so that here 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 physically and safely exit the
vehicle after a collision, you should do so at the first
opportunity.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 between 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.

CAUTION
The SRS airbag system is designed only as a
supplement to the primary protection of the driver
side and front passenger side seat belt systems. The
front seat occupants can be killed or seriously
injured by the inflating airbags if they do not wear the
available seat belts properly. During sudden braking
just before a collision, an unrestrained driver or front
passenger can move forward into direct contact with
or close proximity to the airbag which may then
deploy during the collision. To ensure maximum
protection in an accident, the driver and all
passengers in the vehicle must wear their seat belts
properly. Wearing a seat belt properly during an
accident reduces the chances of death or serious
injury or being thrown out of the vehicle. For
instructions and precautions concerning the seat
belt system, see ºSeat beltsº on page 88.
Improperly seated and/or restrained infants and
children can be killed or seriously injured by the
deploying airbags. An infant or child who is too small
to use a seat belt should be properly secured using
a child restraint system. Lexus strongly
recommends that all infants and children be placed
in the rear seat of the vehicle and properly restrained.
The rear seat is the safest for infants and children.
For instructions concerning the installation of a child
restraint system, see ºChild restraintº on page 111 .
16G057a
Never put a rear±facing child restraint system on the
front passenger seat because the force of the rapid
inflation of the front passenger airbag can cause
death or serious injury to the child.

16G059±2

Move seat fully back
A forward±facing child restraint system should be
allowed to be put on the front passenger seat only
when it is unavoidable. Always move the seat as far
back as possible, because the force of the deploying
front passenger airbags could cause death or
serious injury to the child.
Do not allow the child to lean against the front door
or around the front door even if the child is seated in
a child restraint system. It is dangerous if the side
airbag and curtain shield airbag inflate, because the
impact could cause death or serious injury to the
child.
For instructions concerning the installation of a child
restraint system, see ºChild restraintº on page 111.
16G029a
Do not sit on the edge of the seat or lean against the
dashboard when the vehicle is in use, since the front
passenger airbags inflate with considerable speed
and force. Otherwise, you may be killed or seriously
injured. Sit up straight and well back in the seat, and
always use your seat belt properly.

16G030±1
Do not lean against the front door when the vehicle
is in use, since the side airbag and curtain shield
airbag inflate with considerable speed and force.
Otherwise, you may be killed or seriously injured.
Special care should be taken especially when you
have a small child in the vehicle.
Sit up straight and well back in the seat, distributing
your weight evenly in the seat. Do not apply
excessive weight to the outer side of the front seats
on vehicles with side airbags.
16g253
Do not get your head closer to the area where the side
airbag and curtain shield airbag inflate, since these
airbags inflate with considerable speed and force.
Otherwise, you may be killed or seriously injured.
Special care should be taken especially when you
have a small child in the vehicle.
Do not allow a child to kneel on the front passenger
seat facing the front passenger's side door, since the
side airbag and curtain shield airbags inflate with
considerable speed and force. Otherwise, the child
may be killed or seriously injured.