ignition Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 (OM60A45U) Workshop Manual

AUDIO
197
Using your audio system: some basics
This section describes some of the basic features of the Lexus
audio system. Some information may not pertain to your
system.
Your audio system adjusts to the optimum volume and tone
quality automatically. While the system is adjusting the audio
sound, the audio sound fades out and then fades in.
Your audio system works when the ignition switch is in the
“ACC” or “ON” position.
NOTICE
To prevent the battery from being discharged, do not
leave the car audio on longer than necessary when the
engine is not running.
(a) Turning the system on and off
Push this knob to turn the audio system on and off. Turn
this knob to adjust the volume.
The system turns on in the last mode used.

AUDIO
208Push
this button on the lower side to skip backward. Push the
button until “REW” and the number you want to skip appear on
the display.
 If you set “REW 1”, the player will rewind to the beginning
of the current program.
 When counting the number of programs you want to rewind,
remember to count the current program as well. For
example, if you want to rewind to a song that is two before
the song you are listening to, push this button until “REW
3” appears on the display.
When the beginning of the tape is reached, the player
automatically resumes normal play.
There must be at least 3 seconds of blank space between
programs for this feature to work correctly.
“RPT” and “Automatic program selection” features:
These features may not work well with some spoken word, live
or classical recordings.
Compact disc player operation
(a) Inserting or ejecting compact discs
The ignition switch must be in the “ACC” or “ON” position.
Your compact disc player with changer can store up to 6 discs.
 Setting a single compact disc:
1. Push the “LOAD” button briefly.
The umber indicators at both ends of the slot start blinking and
“WAIT” appears on the display. After the blinking indicators
change to green and stay on, and “WAIT” changes to the
“LOAD”, the CD door opens.
2. Insert only one disc while the CD door is open.
You can set a disc at the lowest empty disc number.
After insertion, the set disc is automatically loaded.
If the label faces down, the disc cannot be played. In this case,
“ERROR 1” and disc number appear on the display.

AUDIO
222(a) Before using the controller (for new vehicle owners)
A battery is already set in the controller with an insulating
sheet, which prevents the battery from being discharged.
Before using the controller, remove the insulating sheet.
(b) Using the controller
To use the rear seat audio system controller, direct the
signal output portion of the controller to the signal
reception portion of the rear seat audio system display.
The rear seat audio system controller can be operated when
the ignition switch is in the “ACC” or “ON” position.
The controller does not operate properly when the signal
reception portion of the display is exposed to direct sunlight.
Block the display from direct sunlight.
NOTICE
Observe
the followings, otherwise the controller may be
damaged.
 Do not drop or strongly knock the controller against
hard objects.
 Do not sit on or place heavy objects on the controller.

AUDIO
224
Using your rear seat audio system: some
basics
The following instructions are for the rear passengers.
Please let the rear passengers read and follow the
instructions when the rear passengers use the rear audio
system.
This section describes some of the basic features of the Lexus
audio system. Some information may not pertain to your
system.
Your audio system adjusts to the optimum volume and tone
quality automatically. While the system is adjusting the audio
sound, the audio sound fades out and then fades in.
Your audio system works when the ignition switch is in the
“ACC” or “ON” position.
NOTICE
To prevent the battery from being discharged, do not
leave the car audio on longer than necessary when the
engine is not running.
Turning the system on and off
Push “ON/SOURCE” button to turn on the rear seat audio
system.
Use “ON/SOURCE” button to select an audi o mode when the
rear seat audio system is on. Each time you push this button,
the system changes between the radio, cassette player and
compact disc player.
When you change the mode, the display indicates which mode
is selected.
When a cassette tape and compact discs are not loaded in the
front audio system, only a radio mode can be selected in the
rear seat audio system.
If you push “ON/SOURCE” button on rear seat audio system
controller to select the casette tape player mode or compact
disc player mode in that case, a beep sounds from front audio
system and “INVALID” flashes on the screen for 6 seconds,
and then the rear audio system returns to the radio mode.

AUDIO
239
Using your audio system: some basics
The following instructions are for the rear passengers.
Please let the rear passengers read and follow the
instructions when the rear passengers use the rear seat
entertainment system.
This section describes some of the basic features of the rear
seat entertainment system. Some information may not pertain
to your system.
Your audio system adjusts to the optimum volume and tone
quality automatically. While the system is adjusting the audio
sound, the audio sound fades out and then fades in.
The rear seat entertainment system is designed for the rear
passengers to enjoy audio and DVD video separately from the
front audio system.
The rear seat entertainment system can be operated when the
ignition key is in the “ACC” or “ON” position.
The rear passengers can enjoy all modes (AM and FM radio,
cassette tape player, compact disc player with changer and
DVD player) on the rear seat entertainment system only if a
cassette tape and a compact disc are loaded in the front audio
system.
The rear seat entertainment system can play DVD video, audio
CD, video CD, CD text, dts −CD or DVD audio only when a disc
is loaded in the DVD player.
You can enjoy videos and sound when your personal audio
system is connected to the input terminal adapter on the rear
console box. For details, refer to the manufacturer’s
instructions.NOTICE
To prevent the battery from being discharged, do not
leave the car audio on longer than necessary when the
engine is not running.

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248
DVD player operation
The DVD player can play audio CDs, DVD video discs, CD
texts, dtsCDs and video CDs.
For appropriate discs for this player, see “Car audio/video
system operating hints” on page 289.
The DVD player works when the ignition key is in the “ACC” or
“ON” position.
To turn on the DVD player, a disc must be loaded in the player.
To turn off the player, eject the disc.
(a) Inserting the disc
1. Push the center of the rear console box lid.
2. Push this button to open the cover.
3. Pull the lid forward to pen the DVD player.

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251
(c) Selecting the DVD mode

1 Controller button2 Mode selection screen
To select the DVD mode, push the “DVD” button on the
controller.
You can also select the DVD mode on the mode selection
screen mentioned above.
“DVD” appears on the screen.
The “DVD Hint!” screen appears when the DVD mode is
first selected after you turn the ignition key to the “ACC”
or “ON” position.
Push the “OK” switch when you read the message.

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
297
THREEWAY CATALYTICCONVERTERS
Threeway catalytic converters are emission control
devices installed in the exhaust system.
The purpose is to reduce pollutants in the exhaust gas.
CAUTION
Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.
 Do not drive, idle or park your vehicle over anything
that might burn easily such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases flowing into the
threeway catalytic converter may cause it to overheat
and create a fire hazard. To prevent this and other
damage, observe the following precautions:
 Use only unleaded gasoline.
 Do not drive with an extremely low fuel level; running
out of fuel could cause the engine to misfire, creating
an excessive load on the threeway catalytic
converter.
 Do not allow the engine to run at idle speed for more
than 20 minutes.
 Avoid racing the engine.
 Do not pushstart or pullstart your vehicle.
 Do not turn off the ignition while the vehicle is
moving.
 Keep your engine in good running order.
Malfunctions in the engine electrical system, electric
ignition system or fuel system could cause an
extremely high threeway catalytic converter
temperature.
 If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a checkup as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its threeway catalytic
converter system best.

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.