2004 Lexus GX470 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 Ð QUICK REFERENCE
Operation of basic equipment is briefly explained in an easily
understandable way for quick reference.
SECTION 1 Ð INSTRUMENTS AND CONTROLS
The vehicle's equipment is divided into the 7 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
SECTION 2 Ð 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 Ð 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 Ð drive safely!
SECTION 4 Ð 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 occurs, check the contents of this
Owner's Manual and follow the instructions given.
SECTION 5 Ð 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 Ð 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.
INDEX
The page number is listed for each item in the Owner's Manual
so that you can rapidly find the item and page you are
searching for.

For detailed information, refer to the description given in each Section.
PICTORIAL INDEX
x
Page
1Driving position memory switches 200. . . . . . . . . . .
2Power window switches 43. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 44. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 205. . . . . .
6Side vents 228. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 29, 31, 32. . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 32. . . . . . . . . . . . . . . . . . . . . .
9Center vents 228. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 46. . . . . . . . . . . . . . . . . . . . .
11Car audio 235. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 67. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 215. . . . . . . . . .
14Rear window defogger switch 40. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 58. . . . . .
16Glove box 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Cigarette lighter 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 47. . . . . . . . . . . . . . . . . . . . . . . . . . Page
20Four-wheel drive control lever 373. . . . . . . . . . . . . . .
21Automatic transmission selector lever 365. . . . . . . .
22Parking brake lever 363. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 373. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 81. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 393. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 387. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 380. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 361. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
292nd STRTº switch 373. . . . . . . . . . . . . . . . . . . . . . . . . .
30Cruise control switch 377. . . . . . . . . . . . . . . . . . . . . . .
31Steering pad switches 256. . . . . . . . . . . . . . . . . . . . . . .
32Hood lock release lever 99. . . . . . . . . . . . . . . . . . . . . . .
33Fuel filler door opener 100. . . . . . . . . . . . . . . . . . . . . . .
34Instrument panel light control dial 73. . . . . . . . . . . . . .
35Outside rear view mirror defogger switch 42. . . . . . .
36Power outlet (115 VAC) main switch 81. . . . . . . . . . . .

GAUGES, METERS AND SERVICE REMINDER INDICATORS
52
ENGINE COOLANT
TEMPERATURE GAUGE

Normal range
The gauge indicates the engine coolant temperature when
the ignition switch is on. The engine operating
temperature will vary with changes in weather and engine
load.
If the needle points to the red zone or higher, stop your vehicle
and allow the engine to cool.
Your vehicle may overheat during severe operating conditions,
such as:
Driving up a long hill on a hot day.
Reducing speed or stopping after high speed driving.
Idling for a long period with the air conditioning on in
stop-and-go traffic.
Towing a trailer.It is not a malfunction even if the needle of the engine coolant
temperature gauge returns to Cº when the ignition switch is
turned to the STARTº.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
63
(j) VSC TRACº Warning Light
The light warns that there is a problem somewhere in the
following.
Vehicle stability control system
Active traction control system
Downhill assist control system
Hill-start assist control system
The light will come on when the ignition key turned to ONº, and
will go off after a few seconds.
It is not a malfunction that the warning light may stay on for 60
seconds after the ignition key is turned to the ONº position.
Depressing the brake pedal repeatedly may turn on the lights.
It is normal if they go out after a few seconds.
There is no problem when the VSC TRACº warning light
comes on when the brake actuator temperature becomes high.
If the light comes on while driving, the above mentioned
systems do not work. However, as conventional braking
operates when 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 ONº.
The warning light remains on after the ignition key is turned
to ONº.
The warning light comes on while driving.
(k) 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.

SECTION 2 ± 1
214
AIR CONDITIONING AND AUDIO
Air conditioning
Automatic air conditioning controls 215. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear cooler controls232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For vehicles equipped with Navigation System,
please refer to the separate Navigation System
Owner's Manualº.

AIR CONDITIONING
215
AUTOMATIC AIR CONDITIONING CONTROLS
21PY023

You can adjust the brightness of the display. See Instrument panel light controlº on page 73 for details.

AIR CONDITIONING
216The automatic air conditioning automatically maintains
the set temperature.
In the automatic operation mode, the air conditioning selects
the most suitable fan speed, air flow, air intake and on-off the
air conditioning according to the temperature.The ignition key must be in the ONº position.
NOTICE
To prevent the battery from being discharged, do not
leave the air conditioning on longer than necessary
when the engine is not running.

AIR CONDITIONING
217
1AUTOº button
2OFFº button
3Driver side temperature display (in degrees
Fahrenheit or Centigrade)
4Fan speed display
5Air flow display
6Passenger side temperature display (in degrees
Fahrenheit or Centigrade)
7Windshield air flow button
8PASSENGER TEMPº (passenger side temperature
control) button
9DUALº (temperature setting mode change) button
10A/Cº button
11MODEº(air flow control) button
12Fan speed control button
13Air intake control button
14TEMPº (driver side temperature control) button