2004 Lexus GX470 air condition

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
59
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ONº position. It goes off after about 6 seconds. This
means the SRS airbags and front seat belt pretensioners
are operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver's seat position sensor, driver's seat belt buckle switch,
front seat belt pretensioner assemblies, inflators, warning light,
interconnecting wiring and power sources.
If either of the following conditions occurs, this indicates a
malfunction somewhere in the parts monitored by the warning
light system. Contact your Lexus dealer as soon as possible
to service the vehicle.
When the ignition key is turned to the ONº position, the light
does not come on, remains on or flashes.
The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front
passenger airbags have a problem. If the light flashes, the side
and curtain shield airbags and/or seat belt pretensioners have
a problem.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
ONº position 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 will not go off even after the 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 the engine speed does not increase with the accelerator
pedal depressed down, there may be a problem somewhere
in your electronic throttle control system.

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.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
64
NOTICE
Do not continue driving if the engine drive belt is broken
or loose.
(l) Low Engine Oil Pressure Warning Light
This light warns that the engine oil pressure is too low.
If it flickers or stays on while you are driving, pull off the road
to a safe place and stop the engine immediately. Call a Lexus
dealer or qualified repair shop for assistance.The light may occasionally flicker when the engine is idling or
it may come on briefly after a hard stop. There is no cause for
concern if it then goes out when the engine is accelerated
slightly.
The light may come on when the oil level is extremely low. It
is not designed to indicate low oil level, and the oil level must
be checked using the oil level dipstick.
NOTICE
Do not drive the vehicle with the warning light on Ð
even for one block. It may ruin the engine.
(m) Engine Oil Replacement Reminder Light
This light reminds you when to replace the engine oil.
This light will come on when the ignition key is turned to ONº
and will go off after about a few seconds.
When you drive for about 8000 km (5000 miles) after the
engine oil replacement, this light illuminates for about 3
seconds and then flashes for about 12 seconds with the
ignition key turned to ONº position. If you continue driving
without the engine oil replacement, and if the driving range
exceeds 12000 km (7500 miles), the light will come on after the
ignition key is turned to ONº position. The light will remain on
thereafter.If the light is flashing, we recommend that you replace the
engine oil at an early opportunity depending on the driving and
road condition. If the light comes on, replace it as soon as
possible.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
69
Outside temperature and cruise information
The following information is shown with the ignition
switch turned on. Each time you push the MODEº button,
the display toggles through this information.
Outside temperature mode
Average fuel consumption mode
Instantaneous fuel consumption mode
Driving range mode
Average vehicle speed mode
Barometer mode
Altimeter mode
Elapsed time mode
The displayed values indicate general driving conditions.
Accuracy varies with driving habits and road conditions.Outside temperature mode
In outside temperature mode, outside air temperatures
are displayed.
The displayed value is updated every 1 second.
The displayed temperature ranges from -22F (-30C) up to
122F (50C).
If there is some abnormality in the connection of the outside air
temperature sensor, --º will appear on the display. If --º
appears on the display, contact your Lexus dealer.
In some cases, --º may appear momentarily when the ignition
is quickly turned to ONº. It is normal if it goes out soon.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
72Barometer mode
In barometer mode, the atmospheric pressure in the
vehicle is displayed.
The displayed atmospheric pressure ranges from 17.8 IN.HG
(600 hPa) up to 31.0 IN.HG (1050 hPa).
The displayed value is updated every 2 seconds.
The displayed value may deviate from the actual atmospheric
pressure depending on opening or closing of the windows and
doors and the driving conditions.Altimeter modeIn altimeter mode, the approximate altitude is displayed.
The displayed altitude ranges from -1500 ft. (-500 m) up to
13000 ft. (4000 m).
As the altitude value is converted from the atmospheric
pressure, it can be easily affected by air motion and
temperature, so the indication may vary. The indicated altitude
of a single position may deviate according to the atmospheric
pressure and temperature.
The displayed value is updated every 2 seconds.
RECTIFICATION OF THE ALTITUDE
Rectification is valid only when the correct altitude is known.
While the altitude mode is on the display, push the 
º or º
button to increase or decrease the altitude by 50 ft. (10 m).
To reset the rectified altitude, push and hold the RESETº
button for more than 1 second.