light lexus LS400 2000 Engine / LEXUS 2000 LS400 (OM50533U) Repair Manual

COMFORT ADJUSTMENT
165
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
are operating properly.
The SRS warning light system monitors the airbag
sensor assembly, side airbag sensor assemblies,
inflators, warning light, interconnecting wiring and power
sources. (For details, see ºService reminder indicators
and warning buzzersº on page 62.)
16L029

COMFORT ADJUSTMENT
172

1Side airbag module (airbag and inflator)
2Airbag module for front passenger
(airbag and inflator)
3Side airbag sensor assembly
4Airbag module for driver (airbag and inflator)
5SRS warning light
6Airbag sensor assembly
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 sensor.
In a severe frontal impact, the driver and front passenger
airbag sensor detects deceleration and the system
triggers the front airbag inflators. In a severe side
impact, the side airbag sensor triggers the side 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
182
16L136-2
The SRS airbag system has an indicator to inform the
driver of operating problems. If either of the following
conditions occurs, this indicates a malfunction of the
airbags. Contact your Lexus dealer as soon as possible
to service the vehicle.
When the ignition key is turned to the ªACCº or ªONº
position, the light does not come on, stays 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
airbags fail.

COMFORT ADJUSTMENT
193
CAUTION
After inserting the tab, make sure the tab and buckle
are locked and that the lap and shoulder portions of
the belt are 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
your child from injury.
16L161±2
2. Fully extend the shoulder belt to put it in the lock
mode. When the belt is then retracted even slightly, it
cannot be extended.
To hold the infant seat securely, make sure the belt is in
the lock mode before letting the belt retract.

COMFORT ADJUSTMENT
200
CAUTION
After inserting the tab, make sure the tab and buckle
are locked and that the lap and shoulder portions of
the belt are 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
your child from injury.
16L166a
2. Fully extend the shoulder belt to put it in the lock
mode. When the belt is then retracted slightly, it cannot
be extended.
To hold the convertible seat securely, make sure the belt
is in the lock mode before letting the belt retract.

COMFORT ADJUSTMENT
211
1. Adjust the driver's seat, driver's shoulder belt
anchor,
tilt and telescopic steering and outside rear
view mirrors to the desired position.
2. While pushing the ºSETº button, push button º1º
or º2º until the signal beeps.
The beep sound means that the positions are recorded
in the computer's memory.
By repeating these two steps and pressing the
remaining button, the driving position for another driver
can be recorded.
To set a new memorized position, select the desired
position and perform step 2. The previous memory will
be erased and the new position will be set.
To make only slight changes to an already memorized
position, the easiest way is to first activate the
memorized position, then make the desired changes
and perform step 2 above.

THEFT DETERRENT
216
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed
to give an alarm if any of the doors, trunk or hood is
forcibly unlocked or the battery terminal is
disconnected and then reconnected while the
vehicle is locked.*
NOTE: *The system operating condition can bechanged. Ask your Lexus dealer for details.
The alarm blows the horn intermittently and flashes the
headlights, tail lights and other exterior lights.
17L001

THEFT DETERRENT
217
Setting the system
1. Turn the ignition key to the ºLOCKº position and
remove it.
The indicator light flashes by means of the engine
immobiliser system.
2. Close and lock all the doors, trunk and hood
using an ignition key or wireless remote control.If you lock them with wireless remote control, the turn
signals flash once.*NOTE: *The turn signals can be set not to flash. Ask
your Lexus dealer for details.
The flashing indicator light will change to stay on when
all the doors, trunk and hood are closed and locked.
3. After 30 seconds, the indicator flashes and the
system is set.
Cancelling the system
When you unlock any door or trunk using an ignition
key or wireless remote control, the system is
cancelled.
If you unlock any door or trunk with wireless remote
control, the turn signals flash twice.*
NOTE: *The turn signals can be set not to flash. Ask your Lexus dealer for details.
Activating the system
The alarm sounds for 60 seconds if any of the following
are operated:

Unlocking any door or trunk without using an ignition
key or wireless remote control.

Opening the hood forcibly.

Reconnecting the battery.

THEFT DETERRENT
218If any door is unlocked and the ignition key is not in the
ignition switch during the alarm sounding, its door is
automatically locked.
To stop the alarm:
Use either of the following methods.

Unlock the door or trunk using an ignition key or
wireless remote control.

Turn the ignition switch on.
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or
wireless remote control. Be sure to wait until the
indicator light starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.
4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and
hood.
When testing the hood, also check that the system is
activated when the battery terminal is disconnected and
then reconnected.
If the system does not work properly, have it checked by your Lexus dealer.
NOTICE
Disconnecting the battery may result in the
erasure of information you have set in thecomputer memory. After reconnecting thebattery, check that the memorized data has beenretained. If it has been erased, input it into thecomputer once more.

AIR CONDITIONING
232
21L008-4
Each time you push the air intake control button, the
mode changes in order from the RECIRCULATED AIR
mode to AUTOMATIC mode to OUTSIDE AIR mode,
then back to the RECIRCULATED AIR mode. Each
indicator light shows which mode is now selected.
1RECIRCULATED mode ± If quick circulation of
cooled air is desired, select this mode.
2EXHAUST GAS AUTOMATIC mode ± If the
outside air contains harmful substances like
exhaust gas (i.e., when the vehicle running just in
front of your vehicle accelerates rapidly), the
system changes automatically from the OUTSIDE
AIR mode (with indicators
2 and 3 on) to the
RECIRCULATED mode (with indicators 1 and 2 on).
3 OUTSIDE AIR mode ± The system will take fresh
outside air into the vehicle. Turning off the air conditioning manually will cancel the
EXHAUST GAS AUTOMATIC mode. If you select the
ªAUTOº mode during fan operating, the air conditioning
turns on and the EXHAUST GAS AUTOMATIC mode
will operate.
For normal use, it is best to keep the air intake control
button set to OUTSIDE AIR mode. If recirculated air is
used
during heating, the windows will fog up more easily.
To change the sensitivity of the sensor switching
between the RECIRCULATED and OUTSIDE AIR in
the AUTOMATIC mode, push the air intake control
button until you hear a beep. The display changes
as illustrated below.
The sensitivity of the sensor can be adjusted only while
the vehicle has stopped.