ECU Lexus IS300 2003 Basic Functions / LEXUS 2003 IS300 (OM53439U) Owner's Guide

EXTERIOR EQUIPMENT
85
Luggage security system
SS15013
After closing the trunk lid, insert the master key and turn
it counterclockwise to deactivate the lock release lever.
At this time, the trunk lid can be opened only by the
phosphorescent handle lever inside the trunk.
FUEL TANK CAP
SS15008
1. To open the fuel filler door, pull the lever up.
When refueling, turn off the engine.
CAUTION
Do not smoke, cause sparks or allow open flames
when refueling. The fumes are flammable.
 When opening the cap, do not remove the cap
quickly. In hot weather, fuel under pressure could
cause injury by spraying out of the filler neck if the
cap is suddenly removed.
2003 IS300 from Aug. '02 Prod. (OM53439U)

EXTERIOR EQUIPMENT
86
SV15011a
2. To remove the fuel tank cap, turn the cap slowly
counterclockwise, then pause slightly before removing it.
The removed cap can be stored on the back side of the fuel
filler door.
It is not unusual to hear a slight swoosh when the cap is
opened. When installing the cap, turn the cap clockwise until
you hear a click.
If the cap is not tightened securely, the malfunction indicator
lamp comes on. Make sure the cap is tightened securely.
The indicator lamp goes off after driving several times. If the
indicator lamp does not go off, contact your Lexus dealer as
soon as possible.
CAUTION
 Make sure the cap is tightened securely to prevent
fuel spillage in case of an accident.
 Use only a genuine Lexus fuel tank cap for
replacement. It is designed to regulate fuel tank
pressure.
Refueling the vehicle
As soon as the correctly operated nozzle switches off
automatically for the first time, the tank is full. Do not try
to add more fuel, because fuel may spill out.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
94
Folding down front passenger's seatback
SV16080
Return the seatback to the up±right position. Pull up the
side levers and fold the seatback down.
SV16081
You can use the front passenger's seatback as a temporary
table only when the vehicle is stopped.
CAUTION
To avoid serious injury:
Do not set up the seatback table while the vehicle is
moving.
 Do not sit on the folded seatback.
 Make sure the front passenger's seat is securely
locked in sliding position when you set the front pas-
senger's seat as a temporary table.
NOTICE
To prevent the seat from damaging, avoid putting heavy
loads on the temporary table.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
100
CAUTION
To avoid serious injury:
Do not set up the seatback table while the vehicle is
moving.
 Do not sit on the folded seatback.
 Make sure the front passenger's seat is securely
locked in sliding position when you set the front pas-
senger's seat as a temporary table.
NOTICE
To prevent the seat from damaging, avoid putting heavy
loads on the temporary table.
FOLD±DOWN REAR SEATS
Before folding down rear seats
SV16105
1To stow the rear center seatbelt, line the concave end tab
upon the round end tab.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
102
Folding down rear seats
SV16103
Lower the head restraints to the lowest position, unlock
the seatbacks by pushing the lock release button on the
side of the seatback and fold them down.
When returning the rear seats to their original position, lift
up the seatbacks until they lock.
CAUTION
When returning seats to their original position:
 Make sure the seat belts are not twisted or caught
under the seat and are arranged in their proper posi-
tion and are ready to use.
 Make sure the seat is securely locked by pushing
forward and rearward on the top of the seatback.
TRUNK STORAGE EXTENSION
SV16005
1. Pull down the center armrest in the rear seat.
Open the cover (a) by removing the strap and unzipping the
fastener of the cover (a).
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
11 3
CAUTION
When doing the circling calibration, be sure to secure
a wide space, and watch out for people and vehicles
in the neighborhood. Do not violate any local traffic
rules while performing circling calibration.
 Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.
SEAT BELTS
Seat belt precautions
Lexus strongly urges that the driver and passengers in the
vehicle be properly restrained at all times with the seat belts
provided. Failure to do so could increase the chance of injury
and/or the severity of injury in accidents.
The seat belts provided for your vehicle are designed for
people of adult size, large enough to properly wear them.
Child. Use a child restraint system appropriate for the child
until the child becomes large enough to properly wear the
vehicle's seat belts. See ºChild restraintº on page 140 for
details.
If a child is too large for a child restraint system, the child should
sit in the rear seat and must be restrained using the vehicle's
seat belt. According to accident statistics, the child is safer
when properly restrained in the rear seat than in the front seat.
If a child must sit in the front seat, the seat belts should be worn
properly. Do not let the child sit on your lap. It does not provide
sufficient restraint. If an accident occurs and the seat belts are
not worn properly, the force of the rapid inflation of the airbag
may cause severe injury to the child.
Do not allow the child to stand up or kneel on either rear or front
seats. An unrestrained child could suffer serious injury or
death during emergency braking or a collision.
Pregnant woman. Lexus recommends the use of a seat belt.
Ask your doctor for specific recommendations. The lap belt
should be worn securely and as low as possible over the hips
and not on the waist.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
11 5
The retractor will lock the belt during a sudden stop or on
impact. It also may lock if you lean forward too quickly. A slow,
easy motion will allow the belt to extend, and you can move
around freely.
When a passenger's shoulder belt is completely extended and
is then retracted even slightly, the belt is locked in that position
and cannot be extended. This feature is used to hold the child
restraint system securely.
(For details, see ºChild restraintº on
page 140.) To free the belt again, fully retract the belt and then
pull the belt out once more.
If the seat belt cannot be pulled out of the retractor, firmly pull
the belt and release it. You will then be able to smoothly pull
the belt out of the retractor.
CAUTION
 After inserting the tab, make sure the tab and buckle
are locked and that the belt is not twisted.
 Do not insert coins, clips, etc. in the buckle as this
may prevent you from properly latching the tab and
buckle.
 If the seat belt does not function normally,
immediately contact your Lexus dealer. Do not use
the seat until the seat belt is fixed. It cannot protect
an adult occupant or your child from injury.
SV16014
Adjust the position of the lap and shoulder belts.
1Position the lap belt as low as possible on your hips ± not
on your waist.
2Adjust it to a snug fit by pulling the shoulder portion
upward through the latch plate.
CAUTION
 Both high±positioned lap belts and loose±fitting
belts could cause serious injuries due to sliding
under the lap belt during a collision or other
unintended result. Keep the lap belt positioned as
low on hips as possible.
 For your safety, do not place the shoulder belt under
your arm.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
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Rear center seat belt
SV16087

1Buckle with light gray buckle ±release button
2Buckle with red buckle ± release button
The rear center seat belt is a 3±point type restraint with 2
buckles. Both seat belt buckles must be correctly located and
securely latched for proper operation.
Make sure that buckle (with light gray buckle±release button)
is securely latched for ready use of the center seat belt.
SV16088
Two buckles and tabs for rear center seat belt.
The 2 buckles for the rear center seat belt are distinguished
with colors of the buckle release button. Also the 2 tabs have
different shape for its end so that the belt is not buckled in the
wrong place.
1Buckle with light gray buckle±release button ±
Properly matches with concave end tab
2Buckle with red buckle±release button ± Properly
matches with round end tab
CAUTION
Make sure the both buckles are correctly located and
securely latched. Failure to properly match the buckle
and tab may cause severe injury in case of an accident
or a collision.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
121
Seat belt extender
If your seat belts cannot be fastened securely because they
are not long enough, a personalized seat belt extender is
available from your Lexus dealer free of charge.
Please contact your local Lexus dealer to order the proper
required length for the extender. Bring the heaviest coat you
expect to wear for proper measurement and selection of
length. Additional ordering information is available at your
Lexus dealer.
CAUTION
When using the seat belt extender, observe the
following precautions. Failure to follow these
instructions could reduce the effectiveness of the seat
belt restraint system in case of vehicle accident,
increasing the chance of personal injury.
Never use the seat belt extender if you can fasten the
seat belt without it.
 Remember that the extender provided for you may
not be safe when used on a different vehicle, for
another person or at a different seating position than
the one originally intended.
SV16050
To connect the extender to the seat belt, insert the tab into
the seat belt buckle so that the ºPRESSº signs on the
buckle release buttons of the extender and the seat belt
are both facing outward as shown.
You will hear a click when the tab locks into the buckle.
When releasing the seat belt, press on the buckle release
button on the extender, not on the seat belt. This helps prevent
damage to the vehicle interior and extender itself.
When not in use, remove the extender and store in the vehicle
for future use.
2003 IS300 from Aug. '02 Prod. (OM53439U)

COMFORT ADJUSTMENT
132Parts of the airbag module (steering wheel hub, airbag cover
and inflator) may be hot for several minutes after deployment,
so do not touch! The airbags inflate only once. The windshield
may be damaged by absorbing some of the force of the
inflating airbag.
CAUTION

The SRS airbag system is designed only as a
supplement to the primary protection of the driver
side and front passenger side seat belt systems. The
front seat occupants can be killed or seriously
injured by the inflating airbags if they do not wear the
available seat belts properly. During sudden braking
just bef ore a collision, an unrestrained driver or front
passenger can move forward into direct contact with
or close proximity to the airbag which may then
deploy during the collision. To ensure maximum
protection in an accident, the driver and all
passengers in the vehicle must wear their seat belts
properly. Wearing a seat belt properly during an
accident reduces the chances of death or serious
injury or being thrown out of the vehicle. For
instructions and precautions concerning the seat
belt system, see ºSeat beltsº on page 113.
 Improperly seated and/or restrained infants and
children can be killed or seriously injured by the
deploying ai rbags. An infant or child who is too small
to use a seat belt should be properly secured using
a child restraint system. Lexus strongly
recommends that all infants and children be placed
in the rear seat of the vehicle and properly restrained.
The rear seat is the safest for infants and children.
For instructions concerning the installation of a child
restraint system, see ºChild restraintº on page 140.
2003 IS300 from Aug. '02 Prod. (OM53439U)