ECU Lexus ES300 2003 s (in English) Owner's Guide

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Improperly seated and/or restrained infants and
children can be killed or seriously injured by the
deploying airbags. 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 “Child restraint” on page 133.
 Never install a rearfacing child restraint system on
the front passenger seat because the force of the
rapid inflation of the front passenger airbag can
cause death or serious injury to the child.

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Never install a rearfacing child restraint system on
the front seat. In the event of an accident, the force
of the rapid inflation of the airbag can cause death or
serious injury if a rearfacing child restraint system
is installed on the front seat.
 Unless it is unavoidable, do not install a
forwardfacing child restraint system on the front
seat.
 A forwardfacing child restraint system should be
allowed to be installed on the front passenger seat
only when it is unavoidable. Always move the seat as
far back as possible, because the force of the
deploying front passenger airbag could cause death
or serious injury to the child.
 Make sure you have complied with all installation
instructions provided by the child restraint
manufacturer and that the system is properly
secured. On vehicles with side airbags and curtain
shield airbags, do not allow the child to lean over the
front door or around the front door even if the child
is seated in a child restraint system. It is dangerous
if the side airbag and curtain shield airbag inflate,
because the impact could cause death or serious
injury to the child.Child restraint system
A child restraint system for a small child or baby must
itself be properly restrained on the seat with the lap
portion of the lap/shoulder belt. You must carefully
consult the manufacturer’s instructions which
accompany the child restraint system.
To provide proper restraint, use a child restraint system
following the manufacturer’s instructions about the
appropriate age and size of the child for the child restraint
system.
Install the child restraint s ystem correctly following the
instructions provided by its manufacturer. General directions
are also provided under the following illustrations.
The child restraint system should be installed on the rear seat.
According to accident statistics, the child is safer when
properly restrained in the rear seat than in the front seat.
CAUTION
 Never install a rearfacing child restraint system on
the front seat. In the event of an accident, the force
of the rapid inflation of the airbag can cause death or
serious injury if a rearfacing child restraint system
is installed on the front seat.
 Unless it is unavoidable, do not install a
forwardfacing child restraint system on the front
seat.

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A forwardfacing child restraint system should be
allowed to be installed on the front passenger seat
only when it is unavoidable. Always move the seat as
far back as possible, because the force of the
deploying front passenger airbag could cause death
or serious injury to the child.
 On vehicles with side airbags and curtain shield
airbags, do not allow the child to lean over the front
door or around the front door even if the child is
seated in a child restraint system. It is dangerous if
the side airbag and curtain shield airbag inflate,
because the impact could cause death or serious
injury to the child.
 After installing the child restraint system, make sure
it is secured in place according to the manufacturer’s
instructions. If it is not restrained securely, it may
cause death or serious injury to the child in the event
of a sudden stop or accident.
When not using the child restraint system, keep it secured with
the seat belt or place it in the trunk or somewhere other than
in the passenger compartment. This will prevent it from
injuring passengers in the event of a sudden stop or accident. Types of child restraint system
Child
restraint systems are classified into the following 3 types
depending on the child’s age and size.
(A) Infant seat
(B) Convertible seat
(C) Booster seat
Install the child restraint syst em following the instructions
provided by its manufacturer.
Your vehicle has anchor brackets for securing the top strap of
a child restraint system.
For instructions about how to use the anchor bracket, see
“Using a top strap” on page 147.
The child restraint lower anchorages approved for your vehicle
may also be used. See “Installation with child restraint lower
anchorages” on page 150.
(A) Infant seat

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1. Run the lap and shoulder belt through or around the infant
seat following the instructions provided by its manufacturer
and inserting the tab into the buckle taking care not to twist the
belt. Keep the lap portion of the belt tight.
CAUTION
After inserting the tab, make sure the tab and buckle
are locked and that the lap and shoulder portions of
the belt are 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 child restraint system until the seat belt is fixed.
It cannot protect your child from injury.
2. Fully extend the shoulder belt to put it in the lock mode.
When the belt is then retrac ted even slightly, it cannot be
extended.
To hold the infant seat securely, make sure the belt is in the lock
mode before letting the belt retract.

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3. While pressing the infant seat firmly against the seat
cushion and seatback, let the shoulder belt retract as far as it
will go to hold the infant seat securely.
CAUTION
Push and pull the child restraint system in different
directions to be sure it is secure. Follow all the
installation instructions provided by its manufacturer.

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2. Fully extend the shoulder belt to put it in the lock mode.
When the belt is then retracted slightly, it cannot be extended.
To hold the convertible seat securely, make sure the belt is in
the lock mode before letting the belt retract.3. While pressing the convertible seat firmly against the seat
cushion and seatback, let the shoulder belt retract as far as it
will go to hold the convertible seat securely.

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CAUTION
Push and pull the child restraint system in different
directions to be sure it is secure. Follow all the
installation instructions provided by its manufacturer.
4. To remove the convertible seat, press the buckle−release
button and allow the belt to retract completely. The belt will
move freely again and be ready to work for an adult or older
child passenger.

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3. Fix the child restraint system with the seat belt.
4. Latch the hook onto the anchor bracket and tighten the
top strap.
For instructions to install the child restraint system, see “Child
restraint system” on page 134.
CAUTION
 Make sure the top strap is securely latched, and
check that the child restraint system is securely by
pushing and pulling it in different directions.
 Follow all the installation instructions provided by its
manufacturer.
5. Outside anchor brackets only—Replace the head
restraint.

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CAUTION
When using the lower anchorages for the child
restraint system, be sure that there are no irregular
objects around the anchorages or that the seat belt is
not caught.
 Push and pull the child restraint system in different
directions to be sure it is secure. Follow all the
installation instructions provided by its
manufacturer.
 Do not install a child restraint system on the rear seat
if it interferes with the lock mechanism of the front
seats. This can cause death or serious injury to the
child and front passenger in case of sudden braking
or a collision.
DRIVING POSITION MEMORY SYSTEM
The microcomputer can memorize the positions of the driver’s
seat and outside rear view mirrors. Two different driving
position profiles can be entered into the computer’s memory.
Recording a driving position in the computer’s memory can
only be done when the ignition key is in the “ON” position and
the selector lever is in the “P” position.
Setting the driving position
1. Adjust the driver’s seat and outside rear view mirrors
to the desired position.
2. While pushing the “SET” button, push button “1” or “2”
until the signal beeps.
The beep sound means that the positions are recorded in the
computer’s memory.

THEFT DETERRENT
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THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors, trunk or hood is
forcibly unlocked or the battery terminal is disconnected
and then reconnected while the vehicle is locked.
The alarm blows the horn intermittently and flashes the
headlights, tail lights and turn signal lights.
Further more when the interior light switch is in the “DOOR”
position, the interior light turns on.
After the alarm is activated, when you unlock any door using
an ignition key or wireless remote control, the tail lights turn on
for about 2 seconds to inform you that the system was
activated.
 Security indicator light
Setting the system
1. Turn the ignition key to the “LOCK” position and
remove it.
The engine immobiliser system causes the indicator light to
flash.
2. Close and lock all the doors, trunk and hood using an
ignition key or wireless remote control.
If you lock them with wireless remote control, the turn signal
lights flash once.
The flashing indicator light will remain on when all the doors,
trunk and hood are closed and locked.
3. After 30 seconds, the indicator starts flashing and the
system is set.