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

2.
INTRODUCTION
ii
New vehicle warranty
Your new vehicle is covered by the following Lexus limited
warranties:

New vehicle warranty

Emission control systems warranty

Others
For further information, please refer to the ºOwner's Guideº,
ºOwner's Manual Supplementº or ºWarranty Bookletº.
Your responsibility for maintenance
It is the owner's responsibility to make sure the specified
maintenance is performed. Section 5 of this Owner's Manual
gives details of these maintenance requirements. Included in
Section 6 is general maintenance. For scheduled
maintenance information, pl ease refer to the ºOwner's Manual
Supplement/Scheduled Maintenanceº.
Accessories, spare parts and modification of
your Lexus
A wide variety of non±genuine spare parts and accessories for
Lexus vehicles are currently available in the market. You
should know that Toyota does not warrant these products and
is not responsible for their performance, repair, or
replacement, or for any damage they may cause to, or adverse
effect they may have on, your Lexus vehicle. This vehicle should not be modified with non±genuine Lexus
products. Modification with non±genuine Lexus products
could af
fect its performance, safety or durability, and may even
violate governmental regulations. In addition, damage or
performance problems re sulting from the modification may not
be covered under warranty.
Spark ignition system of your Lexus
The spark ignition system in your Lexus meets all
requirements of the Canadian Interference±Causing
Equipment Standard.
Installation of a mobile two±way radio system
As the installation of a mobile two±way radio system in your
vehicle could affect electronic systems such as the multiport
fuel injection system/sequential multiport fuel injection system,
cruise control system, anti±lock brake system, SRS airbag
system and seat belt pretensioner system, be sure to check
with your Lexus dealer for precautionary measures or special
instructions regarding installation.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your
Lexus contain explosive chemicals. If the vehicle is scrapped
with the airbags and seat belt pretensioners left as they are,
this may cause an accident such as fire. Be sure to have the
systems of the SRS airbag and seat belt pretensioner removed
and disposed of by a qualified service shop or by your Lexus
dealer before you scrap your vehicle.
2003 IS300 from Aug. '02 Prod. (OM53439U)

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)

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)

QUICK REFERENCE
5
4. HEADLIGHT AND TURN SIGNAL
SWITCH
SVBA013
SVBA013

HEADLIGHT SWITCHWith the ignition OFF
Parking, tail, license plate,
side marker and instrument
panel lights turn on.
Automatic light control
Headlights also turn on.
With the engine started and parking brake
released Parking, tail, license plate,
side marker and instrument
panel lights turn on.
Headlights also turn on
at full intensity.
Automatic light control
SVBA014
SSBA011b
Right or left turn
Lane change
(Right or left) High beam
Headlight flasher

TURN SIGNAL SWITCH
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
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
15
Locking/Unlocking the doors
When you push the ºLOCKº button on the key briefly, all
the doors will be locked from outside the vehicle.
At this time, one beep sounds* and the emergency flashers
flash once.** However, when you push the ºLOCKº button with
any door not closed securely, the buzzer sounds for 10
seconds.*** To stop the buzzer, close all the doors securely or
push the ºUNLOCKº button. If the key is in the ignition switch,
locking cannot be done.
Make sure all the doors are locked when you leave the vehicle.
Push the ºLOCKº button once again. If they were already
locked, one beep sounds and the emergency flashers will
flash.
NOTE: *The beep sound can be set not to sound. **The emergency flasher can be set not to flash. ***The buzzercan be set not to sound if a door is not closed securely. Askyour Lexus dealer for details.
NOTICE
Sedan only: Do not push the ºLOCKº button any longerthan 2 to 3 seconds. Pushing the button longeractivates an alarm. For details, see page 16.
When you push the ºUNLOCKº button, the driver's door
is unlocked. Pushing that button once again within 3
seconds from the first push, all other doors are also
unlocked.*
NOTE: *The 2±step unlocking function can be changed.Ask your Lexus dealer for details.
At this time, two beeps sound* and the emergency flashers
flash twice.** Together with the activation of unlocking, the
interior light comes on for 15 seconds if the interior light switch
is in ºDOORº position.*** However, this function does not
work when the ignition key is in the ºONº position. For further
information, see ºInterior lightsº on page 57.
You have 30 seconds to open a door after using the wireless
remote unlock feature.**** If a door is not opened by then, all
the doors will be automatically locked again.
Even if the ºLOCKº or ºUNLOCKº switch is kept pressed in, the
locking or unlocking operation is not repeated. Release the
button and then push again.
NOTE: *The beep sound can be set not to sound. **The emergency flashers can be set not to flash. ***The interiorlight can be set not to come on or the duration of lighting can
be changed. ****The time before automatic re±locking can be changed. Ask your Lexus dealer for details.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
16
Unlocking the trunk lid
SV11009b
When you keep the button pushed for about 1 second, you
can unlock the trunk lid.* One beep sounds.
This function does not work when the key is in the ignition
switch.
NOTE: *The operation method can be changed. Ask your Lexus dealer for details.
Sounding an alarm*
SV11010a

Sedan
When you push the ºPANICº button for about 2 to 3
seconds, an alarm sounds to deter any person trying to
break into or damage your vehicle.
If you want to stop the alarm, push any button.
This function does not work when the ignition key is in the ºONº
position.
NOTE: *The alarm can be set not to sound. Ask your Lexus
dealer for details.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
17
SV11013b

SportCross
When you push the ºPANICº button for about 1 second, an
alarm sounds to deter any person trying to break into or
damage your vehicle.
If you want to stop the alarm, push any button.
This function does not work when the ignition key is in the ºONº
position.
NOTE: *The alarm can be set not to sound. Ask your Lexus dealer for details.
For vehicles sold in U.S.A.
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.
NOTICE:
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful
interference in a residential installation. This
equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However,
there is no guarantee that interference will not occur
in a particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following
measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment
and receiver.
2003 IS300 from Aug. '02 Prod. (OM53439U)

KEYS AND DOORS
20
DOORS
Locking with key
SS11007a

1Lock 2Unlock
Turn the key towards the front of the vehicle to lock and
towards the back to unlock.
Locking (or unlocking) the driver's door will lock (or unlock) all
the other doors simultaneously. In the driver's door lock,
turning the key once will unlock the driver's door and twice in
succession will unlock all doors simultaneously.*
Together with the activation of unlocking, the interior light will
turn on for 15 seconds if the interior light switch is in the
ºDOORº position.** However, this function does not work
when the ignition key is in the ºONº position. For further
information, see ºInterior lightº on page 57.
NOTE: *The 2±step unlocking function can be changed.**The interior light can be set not to come on or the duration
of lighting can be changed. Ask your Lexus dealer for details.
Locking with inside lock button
SV11004

1Lock 2Unlock
Push in the lock button to lock and unlock the door.
When locked, the door cannot be opened with either the
outside or inside door handle.
Closing the door with the lock button pushed in will also lock
the door. Be careful not to lock your keys in the vehicle. The
door will not lock if the key is left in the ignition switch when
closing the front doors.
2003 IS300 from Aug. '02 Prod. (OM53439U)