Page 3 of 389

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.
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 6 of 389

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, 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Power rear view mirror control switches 107 . . . . . .
3Rear fog light switch 31
. . . . . . . . . . . . . . . . . . . . . . . . .
4Headlight cleaner switch 34
. . . . . . . . . . . . . . . . . . . . .
5Headlight, turn signal and fog light
switch 28, 30, 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6Transmission shift switches 234
. . . . . . . . . . . . . . . . .
7Instrument panel light control 53
. . . . . . . . . . . . . . . . .
8Cruise control switch 241
. . . . . . . . . . . . . . . . . . . . . . .
9Wiper and washer switches 32
. . . . . . . . . . . . . . . . . . .
10Ignition switch 227
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11Emergency flasher switch 37
. . . . . . . . . . . . . . . . . . . .
12Outside temperature display/Clock 59
. . . . . . . . . . . .
13Front passenger's seat belt reminder light 47 . . . . . Page
14Automatic air conditioning controls
180
. . . . . . . . . .
15Car audio 194
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16Seat heater switches 38
. . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 62
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Parking brake lever 228
. . . . . . . . . . . . . . . . . . . . . . . . .
19Driving pattern selector switch
(Automatic transmission) 230 . . . . . . . . . . . . . . . . . . . .
20Ashtray 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
21Cigarette lighter 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Automatic transmission selector lever/
Manual transmission gear shift lever 230, 239 . . . . .
23Traction control system off/Snow mode
switch (Manual transmission) 244 . . . . . . . . . . . . . . . .
24Hood lock release lever 82
. . . . . . . . . . . . . . . . . . . . . .
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 192 of 389
SECTION 2 ± 1
179
AIR CONDITIONING AND AUDIO
Air conditioning
Automatic air conditioning controls180
. . . . . . . . . . . . . . . . . . . . . . . . .
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SECTION 2 ± 2
193
AIR CONDITIONING AND AUDIO
Audio
Audio system194
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 207 of 389
AUDIO
194
AUDIO SYSTEM
Quick reference for your audio system (Type A)
SV22049
You can adjust the brightness of the display. See ºInstrument panel light controlº on page 53 for details.
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 208 of 389

AUDIO
195
1Turning the system on and adjusting the volume
(See page 198 for details.)
2Compact disc slot
(See page 211 for details.)
3Ejecting a compact disc
(See page 212 for details.)
4Radio data system/Traffic announcement/
Program type
(See page 204 for details.)
5Compact disc pre±load button
(See page 211 for details.)
6Audio control knob/Frequency tuning
(See page 199 for details.)
7Mode selectors
(See page 198 for details.)
8Message
(See page 207 for details.)
9Function buttons
1 ± 6: Station selector buttons
(See page 202 for details.)
:Disc selection
(See page 214 for details.)
RPT: Automatic repeat
(See page 210 or 216 for details.) RAND:
Random access
(See page 216 for details.)
SKIP: Automatic skip of blank portions of tape
(See page 210 for details.)
:Rewinding or reversing
(See page 209 or 216 for details.)
:Fast forwarding
(See page 209 or 216 for details.)
:
: Side change
(See page 209 for details.)
DOLBY NR button(See page 209 for details.)
10Cassette tape slot
(See page 208 for details.)
11Ejecting a cassette tape
(See page 208 for details.)
12Radio mode: Frequency tuning
(See page 202 for details.)
TAPE mode: Direct access to a desired program
(See page 210 for details.)
CD mode: Direct access to a desired program
(See page 216 for details.)
13Scan tuning button
(See page 203 for details.)
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 209 of 389
AUDIO
196
Quick reference for your audio system (Type B)
SV22045
You can adjust the brightness of the display. See ºInstrument panel light controlº on page 53 for details.
2003 IS300 from Aug. '02 Prod. (OM53439U)
Page 210 of 389

AUDIO
197
1Turning the system on and adjusting the volume
(See page 198 for details.)
2Compact disc slot
(See page 213 for details.)
3Ejecting a compact disc
(See page 213 for details.)
4Audio control knob/Frequency tuning
(See page 199 for details.)
5Mode selectors
(See page 198 for details.)
6Cassette tape slot
(See page 208 for details.)
7Function buttons
1 ± 6: Station selector buttons
(See page 202 for details.)
:Disc selection
(See page 214 for details.)
RPT: Automatic repeat
(See page 210 or 216 for details.)
RAND: Random access
(See page 216 for details.)
SKIP: Automatic skip of blank portions of tape
(See page 210 for details.)
:Rewinding or reversing
(See page 209 or 216 for details.)
:Fast forwarding
(See page 209 or 216 for details.)
:
: Side change
(See page 209 for details.)
DOLBY NR button
(See page 209 for details.)
8Ejecting a cassette tape
(See page 208 for details.)
9Radio mode: Frequency tuning
(See page 202 for details.)
TAPE mode: Direct access to a desired program
(See page 210 for details.)
CD mode: Direct access to a desired program
(See page 216 for details.)
10Scan tuning button
(See page 203 for details.)
2003 IS300 from Aug. '02 Prod. (OM53439U)