Key Lexus IS300 2003 Basic Functions / LEXUS 2003 IS300 OWNER'S MANUAL (OM53439U)

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)

OPERATION OF SELECTOR LEVER
SELECTOR LEVER POSITION
P: Parking, engine starting and key removal position
R: Reverse position
N: Neutral position
D: Normal driving position (Shifting into overdrive
possible)
M: Position for manual shifting up or downshifting
(Shifting into overdrive possible)*
3, 2: Position for more powerful engine braking
L: Position for maximum engine braking
SVBA009
Shift while pressing the brake pedal. (Ignition
switch must be in the ºONº position.)
*:When the cruise control is being used, even if you downshift from º5º to º4º\
, engine braking will not be enabled because
the cruise control is not cancelled. For the operation to decrease the \
vehicle speed, see page 243.
SV31020
QUICK REFERENCE
4
3. AUTOMATIC TRANSMISSION
2003 IS300 from Aug. '02 Prod. (OM53439U)

SECTION 1 ± 1
7
INSTRUMENTS AND CONTROLS
Keys and doors
Keys8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .
Engine immobiliser system 12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless remote control 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Doors 20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . .
Back door 22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . .
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
8
KEYS
SV11024

Sedan
SV11025

SportCross
1Master keys (black) ± These keys work in every lock.
For your Lexus dealer to make you a new key with
built±in transponder chip, your dealer will need an
original key to program the new one.
2Sub key (gray) ± The sub key will not open the trunk
and the glove box.
3Key number plate ± Keep the plate in a safe place
such as your wallet, not in the vehicle.
A transponder chip for engine immobiliser system has been
placed in the head of the master and sub keys. These chips
are needed to enable the system to function correctly, so be
careful not to lose these keys. If you make your own duplicate
key, you will not be able to cancel the system or start the
engine.
To protect items locked in the trunk or glove box when using
valet parking, leave the sub key with the attendant.
Since the doors and trunk lid can be locked without a key, you
should always carry a spare master key in case you
accidentally lock your keys inside the vehicle.
If you should lose your keys or if you need additional keys,
duplicates can be made by a Lexus dealer using the key
number.
We recommend writing down the key number and storing it in
a safe place.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
9
Flat key
SV11020
Since a transponder chip is built in its key case, you can
start the engine with this key.
The flat key works in every lock.
A transponder chip for engine immobiliser system has been
placed in the key case of the flat key. This chip is needed to
enable the system to function correctly, so be careful not to
lose this key. If you make your own duplicate key, you will not
be able to cancel the system or start the engine.
Insert your key plate in its key case as shown. We recommend
that you always carry this with you for emergency use. Do not
leave it in your vehicle.
Starting the engine using a flat key
SV11011
1. Remove the key plate from the key case.
2. Insert the key plate into the ignition switch. The indicator
light keeps flashing.
3. Bring the key case closer to the ignition switch within 10
seconds as indicated by the arrow head. The indicator light
goes out. This means the engine immobiliser system is
automatically cancelled. (For details, see ºEngine immobiliser
systemºon page 12.) You can put the key case away then. You
cannot cancel the engine immobiliser system if 10 seconds
have past after you inserted the key plate. You need to remove
the key plate from the ignition switch and try it again from the
step 2.
4. Start the engine within 20 seconds after the security
indicator light goes out. You cannot start the engine if 20
seconds have past after the security indicator went off. You
need to remove the key plate from the ignition switch and try
it again from the step 2.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
10
NOTICE
Do not let the key case become bent as the key platemay fall out or become bent also.
The flat key is designed for emergency use only. Sodo not use it regularly instead of other master keys.11L021-2
When using a key containing a transponder chip,observe the following precautions:
When starting the engine, do not use the key with akey ring resting on the key grip and do not press thekey ring against the key grip. Otherwise the enginemay not start, or may stop soon after it starts.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
11
11R055
When starting the engine, do not use the key withother transponder keys around (including the flat key
and keys of other vehicles) and do not press other key plates against the key grip. Otherwise the enginemay not start, or may stop soon after it starts. If thishappens, remove the key once and then insert itagain after taking off other transponder keys
(including the flat key and keys of other vehicles)from the ring or while gripping or covering them with
your hand to start the engine.
SV11019
Do not bend the key grip or flat key.
Do not cover the key grip or flat key with any material that cuts off electromagnetic waves.
Do not knock the key or flat key hard against otherobjects.
Do not leave the key or flat key exposed to hightemperatures for a long period, such as on the
dashboard and hood under the direct sunlight.
Do not put the key or flat key in water or wash it in anultrasonic washer.
Do not use the key or flat key with electromagneticmaterials.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
12
ENGINE IMMOBILISER SYSTEM
SV11007
The engine immobiliser system is a theft prevention
system. When you insert the key in the ignition switch, the
transponder chip in the key's head transmits an electronic
code to the vehicle. The engine will start only when the
electronic code in the chip corresponds to the registered
ID code for the vehicle.
The system is automatically set when the key is removed from
the ignition switch. At this time, the security indicator light
flashes. When you insert the key in the ignition switch, the
security indicator light goes out and the system is canceled
automatically, which enables the engine to start.
For your Lexus dealer to make you a new key with built±in
transponder chip, your dealer will need your key number and
master key or the flat key. However, there is a limit to the
number of additional keys your Lexus dealer can make for you. The transponder chip of the flat key is in its key case. You can
cancel the engine immobiliser system using the flat key. (For
details, see ºFlat keyº on page 9.)
If you make your own duplicate key, you will not be able
to cancel the system or start the engine.
For vehicles sold in U.S.A.
FCC ID: MOZ RI±4ATY
MADE IN JAPAN
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
CAUTION
Changes or modifications not expressly approved by
the party responsible for compliance could void the
user's authority to operate the equipment.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
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For vehicles sold in Canada
This device complies with RSS±210 of Industry
Canada.
Operation is subject to the following two conditions:
(1) This device may not cause interference, and (2)
this device must accept any interference, including
interference that may cause undesired operation of
the device.
WIRELESS REMOTE CONTROL*
SV11008

Sedan
1Locking the doors and sounding an alarm
2Unlocking the doors
3Indicator light
4Unlocking the trunk lid
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
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SV11012a

SportCross
1Locking the doors
2Unlocking the doors
3Indicator light
4Sounding an alarm
NOTE: *This feature can be set inoperative as vehicle theftdeterrent measure in case of the loss of the wireless remote
control key. Ask your Lexus dealer for details.
When you operate any button on the key, push it slowly and
surely. At this time, the indicator light on the key grip flashes
once.
The operational range of the wireless remote control is
approximately 1 meter (3 ft.). The effective range may vary
with different conditions. To activate the wireless remote
control w ithout fail, do it approximately 1 meter (3 ft.) from your
Lexus. In the following cases, the battery in the key may be
discharged. If this is a case, replace it using a special
screwdriver.

The remote control does not work.
 The operational range of wireless remote control becomes
extremely short.
 The indicator light on the key is dimmed or does not come
on.
For the replacement of the battery, see ºReplacing the batteryº
on page 18. You can also have the battery of the key replaced
by your Lexus dealer.
If you lose the wireless key, contact your Lexus dealer as soon
as possible to avoid the possibility of theft, or an accident.
You can use up to 4 wireless remote control keys for the same
vehicle. Contact your Lexus dealer for detailed information.
The wireless remote control key is an electronic
component. Observe the following instructions in order
not to cause damage to the key.
 Do not leave the wireless remote control key on places
where the temperature becomes high such as on the
dashboard.
 Do not disassemble it.
 Avoid knocking it hard against other objects or dropping it.
 Avoid putting it in water.
2003 IS300 from Aug. '02 Prod. (OM53439U)