2001 Lexus GS300 sensor

COMFORT ADJUSTMENT
84
NOTICE
Do not put magnets or a metal object near the inside rear
view mirror. Doing this may cause malfunction of the
compass sensor.
CALIBRATING THE COMPASS (deviation calibration)
The direction display on the compass deviates from the true
direction determined by the earth's magnetic field. The
amount of deviation varies according to the geographic
position of the vehicle.
To adjust for this deviation, stop the vehicle and push the
button for longer than about 6 seconds until the number (1±15)
appears on the display. Then push the button again, referring
to the following map to select the number of the zone where the
vehicle is.
16g221

Zone number
If the direction is displayed several seconds after adjustment,
the calibration is finished.

COMFORT ADJUSTMENT
91
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. It cannot protect
an adult occupant or your child from injury.
Front seat belt pretensioners
16G132b
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 will not activate when no
passenger is sitting 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.

COMFORT ADJUSTMENT
92
16G022
This indicator comes on when the ignition key is turned to
the ªONº position. It goes off after about 6 seconds. This
means the front seat belt pretensioners are operating
properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side airbag sensors, 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 41.)
16G134

1Front airbag sensor
2Front seat belt pretensioner assembly
3SRS warning light
4Airbag sensor assembly
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.

COMFORT ADJUSTMENT
93
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 the instruction can result in death or
serious injury.
NOTICE
Do not perform any of the following changes without
consulting your Lexus dealer. Such changes can
interfere with proper operation of the front seat belt
pretensioners in some cases.
Installation of electronic devices such as a mobile
two±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 to
the front end.
Repairs made on or near the front fenders, front end
structure or console.
16G022
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 pretensioners. Contact your Lexus dealer
as soon as possible to service the vehicle.
When the ignition key is turned to the ªONº position, the light
does not come on or flashes.
The light 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
pretensioner.

COMFORT ADJUSTMENT
97
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 airbag sensors, 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 41.)
16G023
The front airbags are designed to activate in response to
a severe frontal impact within the shaded area between
the arrows in the illustration.
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 impacting straight into a fixed barrier
that does not move or deform.
If the severity of the impact is below the above threshold level,
the front airbags may not work.
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 it is involved
in an underride collision (e.g. a collision in which the nose of
the vehicle ºunderridesº, or goes under, the bed of a truck,
etc.).

COMFORT ADJUSTMENT
98It is possible that in some collisions at the lower zone of airbag
sensor detection and activation the SRS airbags and seat belt
pretensioners will not operate all together.
For the safety of all occupants, always wear your seat belts
properly.
16G024

1Collision from the rear
2Vehicle rollover
The front airbags are not designed to inflate if the vehicle
is involved in a rear collision, if it rolls over, or if it is
involved in a low±speed frontal collision.
The side and curtain shield airbags are designed to inflate
when the passenger compartment area suffers a severe
impact from the side.
16G025

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.

COMFORT ADJUSTMENT
100
16G144b

1Side airbag module (airbag and inflator)
2Airbag module for front passenger
(airbag and inflator)
3Side and curtain shield airbag sensors
4Airbag module for driver (airbag and inflator)
5SRS warning light
6Airbag sensor assembly
7Front airbag sensors
8Curtain shield airbag module (airbag and inflator)
The SRS 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.In a severe frontal impact, the driver and front passenger
airbag sensors detect deceleration and the system triggers the
front airbag inflators. In a severe side impact, the side and
curtain shield airbag sensor triggers the side and curtain shield
airbag inflator. Then a chemical reaction in the inflators quickly
fills the airbags with non±toxic gas to help restrain the forward
or lateral motion of the occupants.
When the SRS operates, it produces a fairly loud noise and
release some smoke and residue along with non±toxic gas.
This does not indicate a fire. This gas is normally harmless;
however, for those who have delicate skin, it may cause a
minor skin irritation. Be sure to wash off any residue as soon
as possible to prevent any potential skin irritation.
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, it may also
cause minor burns or abrasions and swelling.
Parts of the airbag module (steering wheel hub, dashboard,
front seats) may be hot for several minutes, but the airbags
themselves will not be hot. The airbags are designed to inflate
only once.
A crash severe enough to inflate the driver and front passenger
airbags may break the windshield as the vehicle buckles. In
vehicles with a front passenger airbag, the windshield may
also be damaged by absorbing some of the force of the
inflating airbag.

COMFORT ADJUSTMENT
106
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.
Do not modify or remove any wiring. Do not modify,
remove, strike or open any components, such as the
steering wheel pad, steering wheel, column cover,
front passenger airbag cover, front seats or airbag
sensor assembly. Doing any of these may cause
sudden SRS front airbags inflation or disable the
system, which could result in death or serious injury.
Do not modify or replace the seats or upholstery of
the front 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 disassemble or repair the front pillar and roof
side containing the curtain shield airbags. Such
changes may disable the system or cause the curtain
shield airbags to inflate accidentally, resulting in
death or serious injury. Consult your Lexus dealer if
you insist on modifications of this kind.
Failure to follow these instructions can result in death
or serious injury.NOTICE
Do not perform any of the following changes without
consulting your Lexus dealer. Such changes can
interfere with proper operation of the SRS airbag
system in some cases.
Installation of electronic devices such as a mobile
two±way radio, cassette tape player or compact disc
player.
Modification of the suspension system.
Modification of the front end structure and side
structure of the passenger compartment.
Attachment of a grille guard (bull bar, kangaroo bar,
etc.), snowplow, winches or any other equipment to
the front end.
Repairs made on or near the front fenders, front end
structure, console, steering column, steering wheel,
dashboard near the front passenger airbag or front
seats.