Page 43 of 389
SWITCHES
30
HEADLIGHT DIMMER AND TURNSIGNAL SWITCH
SV12010
For high beam, push the lever forward. Pull it back for low
beam. For the headlight flasher, pull it further back.
A blue light in the instrument cluster indicates high beam or
headlight flasher is on.
The headlight flasher works even when the headlight switch is
off.
SV12011
For signaling turns, move the lever up or down in the
conventional manner.
The ignition key must be in the ºONº position.
The turn signal is self±cancelling after a turn, but after a lane
change, you may have to cancel it by hand. You can also signal
a lane change by moving the turn signal lever partway and
holding it there.
If the green light in the instrument cluster flashes faster than
normal, it indicates that the front or rear turn signal bulb has
burned out. If this indicator light does not come on, the fuse
or the indicator light itself has probably failed.
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Page 75 of 389

INTERIOR EQUIPMENT
62The power outlet is designed for power supply for car
accessories.
The ignition key must be in the ºACCº or ºONº position for t\
he
power outlet to be used.
NOTICE
In the console: To prevent the fuse from being blown,
do not use the electricity over the total vehiclecapacity of 12V 3.5A.
In the luggage compartment: To prevent the fusefrom being blown, do not use the electricity over thetotal vehicle capacity of 12V/120W.
To prevent the battery from being discharged, do notuse the power outlet longer than necessary when theengine is not running.
Close the power outlet lid when the power outlet isnot in use. Inserting a foreign object other than theappropriate plug that fits the outlet, or allowing anyliquid into the outlet may cause electrical failure or
short circuits.
GLOVE BOX
SS14012
1Unlock 2Open 3Lock
To open the glove box door, pull the lever. To lock the
glove box door, insert the master key and turn it
clockwise.
With the tail lights on, the glove box light will come on when the
glove box door is open.
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, always keep the glove box door closed
while driving.
2003 IS300 from Aug. '02 Prod. (OM53439U)
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AIR CONDITIONING
183
(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.
SV21021a
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.
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Page 215 of 389

AUDIO
202(b) Presetting a station
SV22042
1. Tune in the desired station.
2. Push
one of the station selector buttons ( 1±6 ) and hold
it until a beep is heard. This sets the station to the button
and the button number ( 1±6 ) appears on the display.
Each button can store one AM station and two FM stations. To
change the preset station to a different one, follow the same
procedure.
The preset station memory is cancelled when the power
source is interrupted by battery disconnection or a blown fuse. (c) Selecting a station
Tune in the desired station using one of the following methods.
SV22053
Preset
tuning: Push the button ( 1±6 ) for the station you want.
The button number ( 1±6 ) and station frequency appear on the
display.
Manual tuning: Turn the ºAUDIO CONTROLº knob clockwise
to step up the frequency. Turn the knob counterclockwise to
step down the frequency. (See page 201.)
Seek tuning: Push the ºSEEKº button. The radio will begin
seeking up or down for a station of the nearest frequency and
will stop on reception. Each time you push the button, the
stations will be searched out one after another.
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INTRODUCTION
301
ENGINE COMPARTMENT OVERVIEW
1Battery
2Fuse box
3Engine oil filler cap
4Engine oil leveldipstick
5Brake fluid reservoir
6Washer fluid tank
7Power steering fluidreservoir
8Engine coolantreservoir
9Electric cooling fans
10Condenser
11Radiator
2003 IS300 from Aug. '02 Prod. (OM53439U)
SV61007a
Page 317 of 389
INTRODUCTION
304
CHECKING BRAKE FLUID
Parts (if level is low):
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Automatic transmission fluid DEXRON
II or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal clamp bolts)
CHECKING AND REPLACING THE BLADE
TYPE FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as original
CHECKING THE CARTRIDGE TYPE FUSES
Parts (if replacement is necessary):
Genuine Lexus fuse or equivalent with same amperage
rating as original
ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze (for winter use)
Tools:
Funnel
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SECTION 6 ± 4
343
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications344
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Checking battery condition 348
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions 350
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses 351
. . . . . . . . . . . . . . . .
Checking the cartridge type fuses 353
. . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 354
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Checking the headlight aim 355
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs 356
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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Page 357 of 389
ELECTRICAL COMPONENTS
344
SPECIFICATIONS
± FUSE LOCATION
SV64029
1Engine compartment
2Passenger's side kick panel
3Driver's side kick panel
± FUSES
SV64022
Driver's side kick panel
SV64023
Passenger's side kick panel
2003 IS300 from Aug. '02 Prod. (OM53439U)