2003 Lexus GX470 steering

COMFORT ADJUSTMENT
172The 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.
Recalling the memorized position
When you push button “1” or “2”, the driving position will
be automatically adjusted to the position recorded for that
button. Conditions for memorized position activation

Ignition key “ON” and selector lever in “P” position.
All parts of the memorized positions can be activated.
 Key not in ignition switch and within 30 seconds of opening
driver’s door.
The memorized position can be activated, except for the tilt
and telescopic steering.
If any driving position memory switch is pushed while one of the
memorized driving position profiles is being activated, the
operation will stop.
To activate the system, push the desired button (“1” or “2”)\
again.
The driving position memory control system cannot be
operated while the vehicle is moving.
If the vehicle’s battery is disconnected, the computer’s
memory will be erased and the memorized positions will have
to be set again.
CAUTION
 Do not start the vehicle while the adjustments are
being made.
 Take care not to select the wrong button, or the seat
could strike the rear passenger or hit your body
against the steering wheel. If this happens, you can
stop the movement by pressing another driving
position memory switch.

AUDIO
214
Audio remote controls (steering switches)
The switches are installed on the left side of the steering wheel.
“MODE” switch: Use this switch to turn on or off the audio
system, or change the audio mode.
 To turn on the system, push the switch briefly. To turn off the
system, push and hold the switch until you hear a beep.
 To change the audio mode, turn on the system and push the
switch briefly. If a tape or compact disc is not inserted, the
“TAPE” or “CD” mode is skipped.
“
” switches: Use these switches to adjust the volume.
To increase the volume, push the “+”. To decrease the volume,
push the“–”. The volume continues to increase or decrease
while the switch is being pressed. (a) When the radio mode is selected
“
” or “” switch:
Use this switch for seek tuning or to
select a preset station.
 To select a preset station, push this switch briefly. The
station you assigned to a switch on the audio system will be
selected.
 To seek a station, push and hold this switch until you hear
a beep. The radio will begin seeking up or down for a station,
and will stop on reception.
(b) When the “TAPE” mode is selected
“
” or “” switch: Use this switch to fast forward or rewind
the tape or for automatic program selection.
 To skip forward or reward for automatic program selection,
push this switch briefly. When automatically selecting a
program, you can skip up to 9 programs at a time. For
details, see page 207 for details.
 To fast forward or rewind the tape, push this switch until you
hear a beep. To stop fast forwarding or rewinding, push and
hold the same side on the switch until you hear a beep.
(c) When the “CD” mode is selected
“
” or “” switch: Use this switch to select a desired track
or disc.
 To select a desired track, push this switch briefly.
 To select a desired disc, push and hold this switch until the
desired number of the disc appears and you hear a beep.

SECTION 3 – 1
296
STARTING AND DRIVING
Starting and driving
Three−way catalytic converters297
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Engine exhaust caution 298
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Before starting the engine 299
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Ignition switch with steering lock 300
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Parking brake 301
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. . . . . .
How to start the engine 302
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Automatic transmission 303
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Four−wheel drive system 309
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Cruise control 312
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Rear height control air suspension 315
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Electronic modulated suspension 320
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Active traction control system 321
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Vehicle skid control system 323
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Downhill assist control system 326
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Hill −start assist control system 329
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Brake system 331
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Brake pad wear limit indicators 335
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Limited −slip differential 336
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Types of tires 336
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. . . . . . .

STARTING AND DRIVING
299
To allow proper operation of your vehicle’s
ventilation system, keep the inlet grilles in front of the
windshield clear of snow, leaves, or other
obstructions.
 If you smell exhaust fumes in the vehicle, drive with
the windows open and the back door closed. Have
the cause immediately located and corrected.BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2. Adjust seat position, seatback angle, head restraint height
and steering wheel angle.
3. Adjust the inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators
function when turning the key to “ON”, and check the fuel
gauge to see that you have sufficient fuel.

STARTING AND DRIVING
300
IGNITION SWITCH WITH STEERINGLOCK
“START” Starter motor on. The key will return to the
“ON” position when released.
For starting tips, see page 302.
It is not a malfunction even if the needle of the tachometer, fuel
gauge or engine coolant temperature gauge returns to the
bottom position when the ignition switch is turned to the
“START” position.
“ON” Engine on and all accessories on.
This is the normal driving position.
It is not malfunction even if the needle on the speedometer may
move when the ignition switch is turned to the “ON” position.
NOTICE
Do not leave the key in the “ON” position if the engine
is not running. The battery will discharge and the
electronic ignition system could be damaged.
“ACC” Accessories such as the radio operate, but the
engine is off.
If you leave the key in the “ACC” or “LOCK” position and open
the driver’s door, a buzzer will remind you to remove the key.

STARTING AND DRIVING
301
“LOCK” Engine is off and the steering wheel is locked.
The ignition key can be removed only at this position.
To turn the key from “ACC” to the “LOCK” position, you must
put the transmission selector lever in the “P” position.
Once you remove the key, the engine immobiliser system is
automatically set. See “Engine immobiliser system” on page
12.
When starting the engine, the key may seem stuck at the
“LOCK” position. To free it, first be sure the key is pushed all
the way in, and then rock the steering wheel slightly while
turning the key gently.
If, in an emergency, you must turn the engine off while the
vehicle is moving, turn the key only to “ACC”.
PARKING BRAKE
To set: Pull up the lever. For better holding power, first
depress the brake pedal and hold it while setting the
parking brake.
To release: Pull up the lever slightly (
1 ), press the lock
release button ( 2 ), and lower the lever ( 3 ).
Before leaving your vehicle, firmly apply the parking brake. For
better holding power, first depress the brake pedal and hold it
while setting the parking brake.
CAUTION
Before driving, make sure the parking brake is fully
released and that the parking brake reminder light is off.

STARTING AND DRIVING
323
Depressing the brake pedal repeatedly may turn on the light.
It is normal if it goes out after a few seconds.
The brake actuator temperature increases during continuous
operation of
the above mentioned systems such as on slippery
roads. If the brake actuator temperature becomes too high
while any of the systems is operating, a buzzer will start to
sound intermittently to indicate that the active traction control
system can no longer operate. In this case, immediately stop
your vehicle at a safe place.
If the system continues to operate, the buzzer sound changes
from intermittent to continuous. (The continuous buzzer
sounds for about 3 seconds.) At the time, the “VSC TRAC”
warning light will come on and the active traction control
system temporarily stops operating in order to protect the
brake actuator. (Although the active traction control system
does not operate, there is no problem to continue your driving.)
The system will be automatically restored after a short time and
the “VSC TRAC” warning light goes out.
If the light comes on while driving, the active traction control
system does not work. However, as normal braking operates
when being applied, there is no problem to continue your
driving.
In the following cases, contact your Lexus dealer:
 The warning light does not come on after the ignition key is
turned to “ON”.
 The warning light remains on after the ignition key is turned
to “ON”.
 The warning light comes on while driving.
VEHICLE SKID CONTROL SYSTEM
The vehicle skid control system helps provide integrated
control of the systems such as antilock brake system,
traction control, engine control, etc. This system
automatically controls t he output of the brakes or engine
to help prevent the vehicle from skidding when cornering
on a slippery road surface or operating steering wheel
abruptly.
The vehicle skid control activates when the vehicle speed is
more than following speed:
Four− wheel drive control lever in “H” 15 km/h (9 mph) . . .
Four−wheel drive control lever in “L” 30 km/h (19 mph) . . .
You may hear a sound in the engine compartment for a few
seconds when the engine is started or just after the vehicle
begins to move. This means that the system is in the
self−check mode, but does not indicate a malfunction.
CAUTION
 Do not rely excessively on the vehicle skid control
system. Even if the vehicle skid control system is
operating, you must always drive carefully and
attentively to avoid serious injury. Reckless driving
will result in an unexpected accident. If the slip
indicator light blinks and an alarm sounds, special
care should be taken while driving.

STARTING AND DRIVING
332You may hear a small sound in the engine compartment after
the engine is started or the brake pedal is depressed
repeatedly. This is a pump pulsating sound of the brake
system, and it is not a malfunction.
CAUTION

Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your brake fluid
pressure reserve.
 Even if the power assist is completely lost, the brakes
will still work. But you will have to push the pedal
hard, much harder than normal. And your braking
distance will be longer.
Antilock brake system
The antilock brake system is designed to automatically
help prevent lockup of the wheels during a sudden brake
or braking on slippery road surfaces. This assists in
providing directional stability and steering performance
of the vehicle under these circumstances.
Effective way to press the ABS brake pedal: When the
anti−lock brake system function is in action, you may feel the
brake pedal pulsating and hear a noise. In this situation, to
let the anti−lock brake system work for you, just hold the
brake pedal down more firmly. Do not pump the brake in a
panic stop. This will result in reduced braking performance.
The anti−lock brake system becomes operative after the
vehicle has accelerated to a speed in excess of approximately
10 km/h (6 mph). It stops operating when the vehicle
decelerates to a speed below approximately 5 km/h (3 mph).
Depressing the brake pedal on slippery road surfaces such as
on the manhole cover, the steel plate under the construction,
joints in the bridge, etc. on a rainy day tends to activate the
anti−lock brake system.
You may hear a click or motor sound in the engine
compartment for a few seconds when the engine is started or
just after the vehicle begins to move. This means that the
anti−lock brake system is in the self −check mode, and does not
indicate a malfunction.
When the antilock brake system is activated, the
following conditions may occur. They do not indicate a
malfunction of the system:
 You may hear the anti −lock brake system operating and feel
the brake pedal pulsating and the vibrations of the vehicle
body and steering wheel. You may also hear the motor
sound in the engine compartment even after the vehicle is
stopped.
 At the end of the anti−lock brake system activation, the
brake pedal may move a little to the forward.