child restraint Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 OWNER'S MANUAL (OM53489U)

IMPORTANT INFORMATION ABOUT YOUR LEXUS
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IMPORTANT INFORMATION ABOUTYOUR LEXUS
Occupant restraint systems
Lexus encourages you and your family to take the time to read
Section 1±6 of this Owner's Manual carefully. In terms of
helping you understand how you can receive the maximum
benefit of the occupant restraint systems this vehicle provides,
Section 1±6 of this Owner's Manual is the most important
section for you and your family to read.
Section 1±6 describes the function and operation concerning
seats, seat belts, SRS airbags and child restraint systems of
this vehicle and some potential hazards you should be aware
of. These systems work together along with the overall
structure of this vehicle in order to provide occupant restraint
in the event of a crash. The effect of each system is enhanced
when it is used properly and together with other systems. No
single occupant restraint system can, by itself, provide you or
your family with the equal level of restraint which these
systems can provide when used together. That is why it is
important for you and your family to understand the purpose
and proper use of each of these systems and how they relate
to each other. The purpose of all occupant restraint systems is to help reduce
the possibility of death or serious injury in the event of a
collision. None of these systems, either individually or
together, can ensure that there is no injury in the event of
collision. However, the more you know about these systems
and how to use them properly, the greater your chances
become of surviving an accident without death or serious
injury.
Seat belts provide the primary restraint to all occupants of the
vehicle, and every occupant of the vehicle should wear seat
belts properly at all times. Children should always be secured
in child restraint systems that are appropriate for their age and
size. SRS (Supplemental Restraint System) airbags are, as
their names imply, designed to work with, and be supplemental
to, seat belts and are not substitutes for them. SRS airbags can
be very effective in reducing the risk of head and chest injuries
by preventing contact of the head and chest with interior
portions of the vehicle.
In order to be effective, the SRS airbags must deploy with
tremendous speed. The rapid deployment of the SRS airbags
makes the SRS airbags themselves potential sources of
serious injury if an occupant is too close to an airbag, or if an
object or some part of
his or her body has been placed between
the occupant and the airbag at the time of deployment. This is
just one example of how the instructions in Section 1±6 of this
Owner's Manual will help ensure proper use of the occupant
restraint systems, and increase the safety they can provide to
you and your family in the event of an accident.
Lexus recommends you to read the provisions in Section 1±6
carefully and refer to them as needed during your time of
ownership of this vehicle.
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SECTION 1 ± 6
93
INSTRUMENTS AND CONTROLS
Occupant restraint systems
Seats94
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Front seats 94
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Fold±down rear seats 105
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Trunk storage extension 107
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Armrests 108
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Head restraints 109
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Seat belts 11 0
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SRS driver airbag and front passenger airbag 124
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SRS side airbags and curtain shield airbags 133
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Child restraint 141
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Driving position memory system 176
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OCCUPANT RESTRAINT SYSTEMS
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Center rear seat
To raise the head restraint, pull it up. To lower it, press the
lock release button and push the head restraint down.
Center rear head restraint: When an occupant sits on the
center rear seat, always pull up the head restraint to the lock
position.
The head restraint is most effective when it is close to your
head. Therefore, using a cushion on the seatback is not
recommended.
CAUTION
 Adjust the center of the head restraint so that it is
closest to the top of your ears.
 After adjusting the head restraint, make sure it is
locked in position.
 Do not drive with the head restraints removed.
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 ªChild restraintº on page 141 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. If an accident occurs and the seat belts are not worn
properly, the force of the rapid inflation of the airbag may cause
death or serious injury to the child.
Do not allow any children 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. Also, do not let
the child sit on your lap. Holding a child in your arms does not
provide sufficient restraint.
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OCCUPANT RESTRAINT SYSTEMS
111
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.
Injured person. Lexus recommends the use of a seat belt.
Depending on the injury, first check with your doctor for specific
recommendations.
CAUTION
Persons should ride in their seats properly wearing
their seat belts whenever the vehicle is moving.
Otherwise, they are much more likely to suffer serious
bodily injury or death in the event of sudden braking or
a collision.
When using the seat belts, observe the following:

Use the belt for only one person at a time. Do not use
a single belt for two or more people ± even children.
 To reduce the risk of sliding under the lap belt during
a collision, avoid reclining the seatback any more
than needed. The seat belts provide maximum
protection in a frontal or rear collision when the
driver and the front passenger are sitting up straight
and well back in the seats. If you are reclined, the lap
belt may slide past your hips and apply restraint
forces directly to the abdomen. In the event of a
frontal collision, the more the seat is reclined, the
greater the risk of personal injury.
Be careful not to damage the belt webbing or
hardware. Take care that they do not get caught or
pinched in the seat or doors.
 Inspect the belt system periodically. Check for cuts,
fraying, and loose parts. Damaged parts should be
replaced. Do not disassemble or modify the system.
 Keep the belts clean and dry. If they need cleaning,
use a mild soap solution or lukewarm water. Never
use bleach, dye, or abrasive cleaners, or allow them
to come into contact with the belt ± they may severely
weaken the belts. (See ªCleaning the interiorº on
page 399 for instructions.)
 Replace the belt assembly (including bolts) if it has
been used in a severe impact. The entire assembly
should be replaced even if damage is not obvious.
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OCCUPANT RESTRAINT SYSTEMS
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Fastening front and rear seat belts
SV16013
Adjust the seat as needed and sit up straight and well back
in the seat. To fasten your belt, pull it out of the retractor
and insert the tab into the buckle.
You will hear a click when the tab locks into the buckle.
The seat belt length automatically adjusts to your size and the
seat position.
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 ªChild restraintº on
page 141.) 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, because it cannot
protect an adult occupant or your child from injury.
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OCCUPANT RESTRAINT SYSTEMS
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Be sure to wear the seat belt without the seat belt
extender if you can fasten the seat belt without the
extender.
 Do not use the seat belt extender when installing a
child restraint system on the front or rear passenger
seat. If installing a child restraint system with the seat
belt extender connected to the seat belt, the seat belt
will not securely hold the child restraint system,
which could cause death or serious injury to the child
or other passengers in the event of collision.
SV16050
To connect the extender to the seat belt, insert the tab into
the seat belt buckle so that the ªPRESSº 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 ext ender, 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.
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OCCUPANT RESTRAINT SYSTEMS
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CAUTION
After inserting the tab, make sure the tab and buckle
are locked and that the lap and shoulder portions of
the belt and the seat belt extender 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 seat until the seat belt is fixed, because it cannot
protect an adult occupant or your child from injury.
Seat belt pretensioners
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The driver and front passenger's seat belt pretensioners
are designed to be activated in response to a severe
frontal impact.
When the sensor detects a severe frontal impact, the front seat
belts are quickly drawn back by the retractors so that the belts
snugly restrain the front seat occupants.
The seat belt pretensioners are activated even with no
passenger in the front seats.
The seat belt pretensioners and SRS airbags may not operate
together in all collisions.
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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 ªChild restraintº on page 141.The SRS front airbags are designed to deploy in severe
(usually frontal) collisions where the magnitude and
duration of the forward deceleration of the vehicle
exceeds the designed threshold level.
The SRS front airbags will deploy if the severity of the impact
is above the designed threshold level, comparable to an
approximate 25 km/h (15 mph) collision when the vehicle has
the impact straight into a fixed barrier that does not move or
deform.
However, this threshold velocity will be considerably higher if
the vehicle strikes an object, such as a parked vehicle or sign
pole, which can move or deform on impact, or if the vehicle is
involved in an underride collision (e.g. a collision in which the
front of the vehicle ªunderridesº, or goes under, the bed of a
truck, etc.).
It is possible that in some collisions where the forward
deceleration of the vehicle is very close to the designed
threshold level, the SRS front airbags and the seat belt
pretensioners may not activate together.
Always wear your seat belts properly.
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OCCUPANT RESTRAINT SYSTEMS
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SV16173
Lexus strongly recommends that all infants and
children be placed in the rear seat of the vehicle and
be properly restrained.
 Do not allow a child to stand up or kneel on the front
passenger seat, since the front passenger airbag
could inflate with considerable speed and force.
Otherwise, the child may be killed or seriously
injured.
 Do not hold a child on your lap or in your arms. Use
a child restraint system in the rear seat. For
instructions concerning the installation of a child
restraint system, see ªChild restraintº on page 141.
SV16174
Do not put anything or any part of your body on or in
front of the dashboard or steering wheel pad that
houses the front airbag system. They might restrict
inflation or cause death or serious injury as they are
projected rearward by the force of the deploying
airbags. Likewise, the driver and front passenger
should not hold objects in their arms or on their
knees.
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OCCUPANT RESTRAINT SYSTEMS
133
SRS SIDE AIRBAGS AND CURTAINSHIELD AIRBAGS
SV16177
The SRS (Supplemental Restraint System) side airbags
and curtain shield airbags are designed to provide further
protection for the driver and front passenger in addition
to the primary safety protection provided by the seat belts.
In response to a severe side impact, the SRS side airbags and
curtain shield airbags work with the seat belts to help reduce
injury by inflating. The SRS side airbags help reduce injuries
mainly to the driver's or front passenger's chest and the SRS
curtain shield airbags help reduce injuries mainly to the driver's
or front passenger's head.
The SRS side airbag and curtain shield airbag on the
passenger side are activated even with no passenger in the
front seat.
Always wear your seat belt properly.
CAUTION
 The SRS side airbag and curtain shield airbag system
is designed only as a supplement to the primary
protection of the driver and front passenger seat belt
systems. To ensure maximum protection in an
accident, the driver and all passengers in the veh icle
must wear their seat belts properly. Wearing a seat
belt pro perly 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 ªSeat beltsº on
page 110.
 Do not allow anyone to lean his/her head or any part
of his/her body against the door or the area of the
seat, front pillar, side pillar or roof side rail from
which the SRS side airbag and curtain shield airbag
deploy even if he/she is a child seated in the child
restraint system. It is dangerous if the SRS side
airbag and curtain shield airbag inflate, and the
impact of the deploying airbags could cause death or
serious injury to the occupant.
04 06.30