2000 Lexus LS400 light

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306
Turning on the system
31L067
To operate the cruise control, push the main switch. This
turns the system on. The indicator light in the instrument
cluster shows that you can now set your desired cruising
speed. Another push on the switch will turn the system
completely off.
When the ignition key is turned off, the main switch is
also automatically turned off. To use the cruise control
again, push the main switch again to turn it on.
CAUTION
To avoid accidental cruise control engagement, keep
the main switch off when not using the cruise control.

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Cruise control failure warning
If the ºCRUISEº indicator light in the instrument cluster
flashes when using the cruise control, push the main
switch to turn the system off and then push it again to
turn it on.
If any of the following conditions then occurs, there is
some trouble in the cruise control system.
The indicator light does not come on.
 The indicator light flashes again.
 The indicator light goes out after it comes on.
If this is the case, contact your Lexus dealer and have
your Lexus inspected.
ELECTRONICALLY
MODULATED AIR SUSPENSION
(U.S.A. ONLY)
This electronically modulated air suspension
adjusts the damping effect on the shock absorbers
and the vehicle height. This adjustment is
automatically made in response to the driving
conditions to provide good riding comfort and
stability in all driving conditions.

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ºNORMALº
mode ± For driving on roads with a normal
surface.
ºHIGHº mode ± For driving on rough roads which are
unsurfaced or continually bumpy.
The damping effect is set slightly firmer in ºHIGHº mode.
So you may feel the vibration of the vehicle compared to
in ºNORMALº mode. However, this does not mean a
malfunction in the system. We recommend you use a
ºNORMALº mode in normal driving.
To change the mode, push the selector switch.
ºNORMALº mode
The vehicle height remains at normal height at all driving
speeds.
ºHIGHº mode
The vehicle height switches between the following two
vehicle heights according to the driving conditions:
Vehicle height
Driving condition
NormalMedium and high speed driv-
ing
HighLow speed driving

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31L016-2
The indicator light shows ºHIGHº mode is selected.
When you turn the ignition key to the ºONº position, the
indicator light will come on for 2 seconds in any mode.
NOTICE
For vehicles equipped with the height controlswitch, be sure to turn the ignition switch offbefore jacking. If this is not done, the vehicleheight adjustment function will operate, whichmay cause body damage.
(b) Malfunction warning
If the ºHIº indicator light blinks, there is a malfunction in
this system. Have the system checked by your Lexus
dealer at the first opportunity.
TRACTION CONTROL SYSTEM
The traction control system automatically helps
control the spinning of the rear wheels which may
occur when accelerating on slippery road surfaces,
thus assisting driver to control the driving power of
the rear wheels.

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31L052±1

Slip indicator light
When you turn the ignition switch on, this system
always turns on. Leave the system on during
ordinary driving so that it can operate when needed.
When traction control is applied, the slip indicator
light blinks.
You may hear a sound in the engine compartment for a
few seconds when the engine is started or just after the
vehicle is started. This means that the traction control
system is in the self ±check mode, and does not indicate
malfunction.
When the traction control system is operating, you may
feel vi bration of your vehicle, caused by operation of the
brakes. This indicates the system is functioning
properly. When getting the vehicle out of mud or new snow, etc.
the traction control system will help operate to prevent
the wheels from spinning.
To turn off the traction control system, see page 317.

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Slip indicator light
If the vehicle is going to skid during driving, the slip
indicator light flashes and an alarm sounds.
The vehicle skid control activates when the vehicle
speed is about more than 15 km/h (9 mph).
Depressing the brake pedal repeatedly causes a small
noise from the engine compartment. This is a pump
pulsating sound of the brake system and it is not a
malfunction.
You may hear a sound in the engine compartment for a
few seconds when the engine is started or just after the
vehicle is started. This means that the vehicle skid
control is in the self±check mode and does not indicate
a malfunction.
31L017b

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You can turn off the vehicle skid control system by
pushing the ºVSC ±OFF±º switch. The ºVSC OFFº
indicator comes on. At this time, the traction control
system
also turns off. You cannot turn off either one
of them. Pushing the ºVSC ±OFF±º switch a second
time turns the system back on and extinguishes the
ºVSC OFFº indicator light.
When you turn the ignition switch on, this system always
turns on.

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Vehicle skid control failure warning
31L073
In the following cases, the warning message
appears and the reminder light next to the warning
message and the ºVSC OFFº indicator light come
on. And the warning tone also sounds.
(a) After the removal of the battery terminals (See ºInitial
adjustment of vehicle skid control systemº described
below.)
(b) If the vehicle skid control system malfunctions
If the message appears, the brake assist system does
not work, however, there is no problem to continue your
driving. If the message appears for the cause of (b),
have your vehicle checked by Lexus dealer as soon as
possible.
Initial adjustment of vehicle skid control system
After the battery terminals are disconnected, an initial
adjustment should be made. At this time, the reminder
light
comes on and the warning message appears in the
multi information display.
Make an initial adjustment in the following ways:
1. Apply the parking brake and put the transmission in
ºPº.
2. Connect the battery terminals.
3. Turn the ignition switch on. At this time, the ºVSC
OFFº i ndicator light comes on and then about 6 seconds
later, the reminder light comes on and the ºCHECK VSCº
warning message appears in the multi information
display.