2006 Lexus GS430 air conditioning

HOW TO USE THIS MANUAL
vi
HOW TO USE THIS MANUAL
The contents of this manual are explained briefly on this
page to help you make the best use of the manual. Please
read this page and the rest of the Owner’s Manual
carefully to make sure you fully understand the operation
of your vehicle.
This will help you enjoy safe and comfortable driving.
TABLE OF CONTENTS
The table of contents and the pictorial index provide easy
reference to the appropriate pages.
BASIC OPERATION QUICK REFERENCE
Operation of basic equipment is briefly explained in an easily
understandable way for quick reference.
SECTION 1 INSTRUMENTS AND CONTROLS
The vehicle’s equipment is divided into the 8 groups listed
below. Use of the equipment is explained, including any points
you should pay particular attention to.
1. Keys and doors
2. Switches
3. Gauges, meters and service reminder indicators
4. Interior equipment
5. Exterior equipment
6. Occupant restraint systems
7. Steering wheel and mirrors
8. Touch screen
SECTION 2 AIR CONDITIONING AND AUDIO
The features of the vehicle’s air conditioning and audio are
explained in detail. Be sure to read this section so that you can
make full use of them.
SECTION 3 STARTING AND DRIVING
Starting the engine, driving, stopping, operation of features
affecting vehicle handling, hints on vehicle safety and safe
driving techniques are all explained. Please read everything
in this section, and remember − drive safely!
SECTION 4 IN CASE OF AN EMERGENCY
This section explains what to do in the event of an urgent
situation such as the engine not starting or getting a flat tire,
etc. If such a problem occu rs, check the contents of this
Owner’s Manual and follow the instructions given.
SECTION 5 MAINTENANCE
This section explains the importance of regular maintenance.
Regular and periodic inspection and maintenance of your
Lexus will help to keep your vehicle in its best condition.
SECTION 6 SERVICE PROCEDURES AND
SPECIFICATIONS
Simple maintenance procedure and service data are provided
here for your reference should you wish to perform inspection
and maintenance yourself.

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xPage
1
Power window switches 37, 57
. . . . . . . . . . . . . . . . . . .
2 Driving position memory switches 198
. . . . . . . . . . .
3 Window lock switch 58
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Door lock switch 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Side vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Engine switch 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Automatic air conditioning controls 254
. . . . . . . . . .
8 Audio system 274
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Clock 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
10 Center vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Outside temperature display 106
. . . . . . . . . . . . . . . . .
12 Touch screen 215
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Navigation system display (See the separate
“Navigation System Owner’s Manual”)
13 Security indicator light 40
. . . . . . . . . . . . . . . . . . . . . . .
14 Rear window and outside rear view
mirror defogger switch 56 . . . . . . . . . . . . . . . . . . . . . . .
15 Front passenger’s seat belt reminder light 76 . . . . .
16 Emergency flasher switch 60
. . . . . . . . . . . . . . . . . . . . Page
17 Glove box
110
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Trunk lid opener main switch 126
. . . . . . . . . . . . . . . .
19 Tire selector switch 442
. . . . . . . . . . . . . . . . . . . . . . . . .
20 Cigarette lighter 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Cupholders 115
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Seat heater switches or Seat ventilator/heater
switches 61, 63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Traction control system off switch
(Twowheel drive models only) 419 . . . . . . . . . . . . . .
24 Driving pattern selector switch 353
. . . . . . . . . . . . . . .
25 Damping mode select switch
(GS430 only) 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Coin box 116
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 Ashtray 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
28 Automatic transmission selector lever 353 . . . . . . .
29 Tire pressure warning system reset switch 440 . . . .
30 Hood lock release lever 124
. . . . . . . . . . . . . . . . . . . . .
31 Parking brake pedal 352
. . . . . . . . . . . . . . . . . . . . . . . . .
32 Switch box xix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xiiPage
1
Power window switches 37, 57
. . . . . . . . . . . . . . . . . . .
2 Driving position memory switches 198
. . . . . . . . . . .
3 Window lock switch 58
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Door lock switch 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Side vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Engine switch 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Automatic air conditioning controls 254
. . . . . . . . . .
8 Audio system 274
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Clock 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
10 Center vents 268
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Outside temperature display 106
. . . . . . . . . . . . . . . . .
12 Touch screen 215
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Security indicator light 40
. . . . . . . . . . . . . . . . . . . . . . .
14 Rear window and outside rear view
mirror defogger switch 56 . . . . . . . . . . . . . . . . . . . . . . .
15 Front passenger’s seat belt reminder light 76 . . . . .
16 Emergency flasher switch 60
. . . . . . . . . . . . . . . . . . . . Page
17 Glove box
110
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Trunk lid opener main switch 126
. . . . . . . . . . . . . . . .
19 Tire selector switch 442
. . . . . . . . . . . . . . . . . . . . . . . . .
20 Cigarette lighter 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 Cupholders 115
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Seat heater switches or Seat ventilator/heater
switches 61, 63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 Traction control system off switch
(Twowheel drive models only) 419 . . . . . . . . . . . . . .
24 Driving pattern selector switch 353
. . . . . . . . . . . . . . .
25 Damping mode select switch
(GS430 only) 417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Coin box 116
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 Ashtray 107
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
28 Automatic transmission selector lever 353 . . . . . . .
29 Tire pressure warning system reset switch 440 . . . .
30 Hood lock release lever 124
. . . . . . . . . . . . . . . . . . . . .
31 Parking brake pedal 352
. . . . . . . . . . . . . . . . . . . . . . . . .
32 Switch box xix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GAUGES, METERS AND SERVICE REMINDER INDICATORS
69

Idling for a long period with the air conditioning on in
stop−and−go traffic.
NOTICE
Do not remove the thermostat in the engine cooling
system as this may cause the engine to overheat. The
thermostat is designed to control the flow of coolant
to keep the temperature of the engine within the
specified operating range.
 Do not continue driving with an overheated engine.
See ”If your vehicle overheats” on page 467.
TACHOMETER
G13003
The tachometer indicates engine speed in thousands of
rpm (revolutions per minute). Use it while driving to
prevent engine overrevving.
Driving with the engine running too fast causes excessive
engine wear and poor fuel economy. Remember, in most
cases the slower the engine speed, the greater the fuel
economy.
NOTICE
Do not let the indicator needle get into the red zone. This
may cause severe engine damage.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
77
(f) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, stop the vehicle, turn off the
engine, and check for the cause. Look first at the engine drive
belt.
 If it is loose or broken, the generator will not charge the
battery properly.
 If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however, until the
battery is discharged. Turn off the air conditioning, blower,
radio, etc., and drive directly to the nearest Lexus dealer or
repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken
or loose.
(g) Malfunction Indicator Lamp
This lamp comes on when the engine switch is selected in
“IGON” mode and goes off after the engine starts. This
means that the warning light system is operating properly.
If the lamp remains on, or the lamp comes on while
driving, first check the followings:
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your
Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If this lamp comes on and engine speed does not increase
when the accelerator pedal is depressed, there may be a
problem somewhere in the electronic throttle control system.

G18042
Vehicles with Navigation system
G18043
Vehicles without Navigation system
TOUCH SCREEN
216
OVERVIEW
1 Touch screen
2 “CLIMATE” button
The air conditioning operation screen is
shown.
(See page 254 for details.)
3 “AUDIO” button
The audio operation screen is shown.
(See page 274 for details.)
4 “INFO”button
The information menu screen is shown.
(See page 218 for details.)
5 “DISP” button
The display adjustment screen is
shown.
(See page 251 for details.)

TOUCH SCREEN
222
G18005
You can use the microphone above when talking on the
phone.
The party’s voice outputs from the driver’s speaker. When the
received calls or received voice outputs, the audio from the
audio system or voice guidance from the Navigation system
will be muted.
INFORMATION
 Talk alternately with your party on the phone. If you
talk at the same time, the voice may not reach each
other. (It is not a malfunction.)
 Keep the volume of receiving voice down. Otherwise,
echo is coming up. When you talk on the phone,
speak clearly towards the microphone.
 In the following situations, your voice may not reach
the party.
Driving on unpaved road. (Making a traffic noise.)
Driving at the high speed.
The window is open.
Turning the air conditioning vents towards the
microphone.
The sound of the air conditioning fan is loud.

TOUCH SCREEN
250
Setting screen
1. Push the “INFO” button on the bezel to display the
“Information Menu” screen.
G18045
2. Touch the “Screen Setting” switch.(a) Automatic transition
You can select a function that enables automatic return to
the navigation screen from the audio screen.
G18035
Select the “ON” or “OFF” and then touch the “OK”.
ON: The navigation screen automatically returns from the
audio or air conditioning screen 20 seconds after the end of
audio or air conditioning screen operation.
OFF: The audio or air conditioning screen remains on.