air conditioning Lexus IS300 2002 Electrical Components / LEXUS 2002 IS300 WAGON OWNER'S MANUAL (OM53423U)

3.
HOW TO USE THIS MANUAL
iii
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 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. Comfort adjustment
7. Theft deterrent
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 occurs, 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.

6.
For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
vi
Page
1Power door lock switch and power window switches 21, 33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Power rear view mirror control switches 103 . . . . . .
3Rear fog light switch 29
. . . . . . . . . . . . . . . . . . . . . . . . .
4Headlight cleaner switch 32
. . . . . . . . . . . . . . . . . . . . .
5Headlight, turn signal and fog light
switch 26, 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6Transmission shift switches 229
. . . . . . . . . . . . . . . . .
7Instrument panel light control 51
. . . . . . . . . . . . . . . . .
8Cruise control switch 237
. . . . . . . . . . . . . . . . . . . . . . .
9Wiper and washer switches 30
. . . . . . . . . . . . . . . . . . .
10Ignition switch 223
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11Emergency flasher switch 35
. . . . . . . . . . . . . . . . . . . .
12Outside temperature display/Clock 57
. . . . . . . . . . . .
13Front passenger's seat belt reminder light 45 . . . . . Page
14Automatic air conditioning controls
176
. . . . . . . . . .
15Car audio 190
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16Seat heater switches 36
. . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Parking brake lever 224
. . . . . . . . . . . . . . . . . . . . . . . . .
19Driving pattern selector switch
(Automatic transmission) 226 . . . . . . . . . . . . . . . . . . . .
20Ashtray 58
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
21Cigarette lighter 58
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Automatic transmission selector lever/Manual
transmission gear shift lever 226, 235 . . . . . . . . . . . . .
23Traction control system off/Snow mode switch
(Manual transmission) 240 . . . . . . . . . . . . . . . . . . . . . . .
24Hood lock release lever 80
. . . . . . . . . . . . . . . . . . . . . .

GAUGES, METERS AND SERVICE REMINDER INDICATORS
39
ENGINE COOLANT TEMPERATUREGAUGE
SV13012

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.
NOTICE
Do not remove the thermostat in the engine cooling
system as this may cause the engine to overheat. Thethermostat is designed to control the flow of coolantto keep the temperature of the engine within thespecified operating range.
Do not continue driving with an overheated engine.See ºIf your vehicle overheatsº on page 267.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
46
(e) 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.
(f) 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 ± evenfor one block. It may ruin the engine.

SECTION 2 ± 1
175
AIR CONDITIONING AND AUDIO
Air conditioningAutomatic air c
onditioning controls
. . . . . . . . . . . . . . . . . . . . . . . . . 176

AIR CONDITIONING
176
AUTOMATIC AIR CONDITIONING CONTROLS
SV21019

You can adjust the brightness of the display. SeeºInstrument panel light controlº on page 51 for details.
The 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 of
the air conditioning according to the temperature.
The ignition key must be in the ºONº position.
NOTICE
To prevent the battery from being discharged, do notleave the air conditioning on longer than necessarywhen the engine is not running.

AIR CONDITIONING
177
1Automatic air flow control position
2Air flow control dial
3Air intake control button
4Temperature control dial
5Automatic fan speed control position
6Air conditioning on±off button
7Fan speed control dial

AIR CONDITIONING
178
SV21006

Air flow selection

AIR CONDITIONING
179
(a) Climate control
SETTING OPERATION ± automatic control
SV21018
1. Set the air flow control dial and the fan speed control
dial to ºAUTOº positions.
An indicator light will illuminate to show that the automatic
operation mode has been selected.
Air flow quantity and switching of the diffusers are
automatically adjusted.
When one of the manual control dials is turned while operating
in automatic mode, the operation corresponding to the dial
turned is set. Other conditions continue to be adjusted
automatically.
When the fan speed control dial is turned to ºOFFº, the fan is
turned off. If the ºA/Cº button indicator flashes, there is a problem in the
air conditioning system and the air conditioning automatically
shuts off. If this happens, take your vehicle to your Lexus
dealer for service.
SV21021
2. Turn the temperature control dial to set the desired
temperature.
The temperature control dial is used to set the desired
passenger compartment temperature.
The temperature of air
delivered to the passenger compartment will be controlled
automatically according to the setting. The figures on the
panel indicate degrees Fahrenheit.
When you adjust the temperature control dial to maximum
cooling, the air intake mode will be automatically changed to
RECIRCULATED AIR.

AIR CONDITIONING
180SETTING OPERATION ± manual control
If manual air flow selection is desired ±
SV21017
The outlets from which air is delivered can be selected
manually by pushing the button. The function of each mode is
as follows:
1Panel
± Air flows mainly from the instrument panel vents.
2Bi±level ± Air flows from both the floor vents and the
instrument panel vents.
3Floor ± Air flows mainly from the floor vents.
4Floor/Windshield ± Air flows mainly from the floor vents
and windshield vents.
Set the air flow control dial to the floor/windshield position
turns on the defogging function with the purpose of
clearing the front view.
Use with the air intake control positioned in fresh. Press the ºA/Cº button for dehumidified heating or
cooling. This setting clears the front view more quickly.
5Windshield
± Air flows mainly from the windshield vents.
Set the air flow control dial to the windshield position turns
on the defogging function with the purpose of clearing the
front view.
This position allows the air intake to select FRESH
automatically. This is to clean up the front view more
quickly.
If you want to return the setting to RECIRCULATE mode,
press the air intake selector button one again.
Press ºA/Cº button for dehumidified heating or cooling.
This setting clears the front view more quickly.