lock Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 (OM53489U) Workshop Manual

OCCUPANT RESTRAINT SYSTEMS
11 2
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
11 3
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 event. Keep the lap belt positioned as low
on hips as possible.
 Do not place the shoulder belt under your arm.
SV16015

Seat belts with an adjustable shoulder anchor
Adjust the shoulder anchor position to your size.
To raise: Slide the anchor up.
To lower: Push in the lock release button and slide the anchor
down.
After adjustment, make sure the anchor is locked in position.
CAUTION
Always make sure the shoulder belt is positioned
across the center of your shoulder. The belt should be
kept away from your neck, but not falling off your
shoulder. Failure to do so could reduce the amount of
protection in an accident and cause serious injuries in
a collision.
04 06.30

OCCUPANT RESTRAINT SYSTEMS
11 9
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
120
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
SV16151
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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OCCUPANT RESTRAINT SYSTEMS
121
SV16068

1SRS warning light
2Seat belt pretensioner assemblies
3Airbag sensor assembly
4Front airbag sensors
The seat belt pretensioner system consists mainly of the
above components, and their locations are shown in the
illustration.
The seat belt pretensioners are controlled by the airbag sensor
assembly. The airbag sensor assembly consists of a safing
sensor and airbag sensor.
When the seat belt pretensioners are activated, an operating
noise may be heard and a small amount of non±toxic gas may
be released. This does not indicate that a fire is occurring. This
gas is normally harmless.
Once the seat belt pretensioners have been activated, the seat
belt retractors remain locked.
CAUTION
Do not modify, remove, strike or open the seat belt
pretensioner assemblies, airbag sensor or surrounding
area or wiring. Failure to follow these instructions may
prevent the seat belt pretensioners from activating
correctly, cause sudden operation of the system or
disable the system, which could result in death or
serious injury. Consult your Lexus dealer about any
repair and modification.
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OCCUPANT RESTRAINT SYSTEMS
146
SV16074
If the driver's seat position does not allow sufficient
space for safe installation, install the child restraint
system on the rear right seat.
SV16032
1. Run the lap and shoulder belt through or around the infant
seat following the instructions provided by its manufacturer
and insert 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 your child from properly latching the tab
and buckle.
 If the seat belt does not function normally, it cannot
protect your child from death or serious injury.
Contact your Lexus dealer immediately. Do not install
the child restraint system on the seat until the seat
belt is fixed.
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OCCUPANT RESTRAINT SYSTEMS
147
SV16033
2. Fully extend the shoulder belt to put it in the lock mode.
When the belt is then retracted 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.
SV16034
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.
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OCCUPANT RESTRAINT SYSTEMS
151
SV16039
1. Run the lap and shoulder belt through or around the
convertible seat following the instructions provided by its
manufacturer and insert 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 your child from properly latching the tab
and buckle.
 If the seat belt does not function normally, it cannot
protect your child from death or serious injury.
Contact your Lexus dealer immediately. Do not install
the child restraint system on the seat until the seat
belt is fixed.
SV16040
2. Fully extend the shoulder belt to put it in the lock mode.
When the belt is then retracted even 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.
SV16041
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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OCCUPANT RESTRAINT SYSTEMS
155
Both high±positioned lap belts and loose±fitting
belts could cause death or serious injuries due to
sliding under the lap belt during a collision or other
unintended event. Keep the lap belt positioned as low
on a child's hips as possible.
 For child's safety, do not place the shoulder belt
under child's arm.
 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 your child from properly latching the tab
and buckle.
 If the seat belt does not function normally, it cannot
protect your child from death or serious injury.
Contact your Lexus dealer immediately. Do not install
the child restraint system on the seat until the seat
belt is fixed.
SV16056
2. To remove the child restraint system, press the
buckle±release button and allow the belt to retract.
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OCCUPANT RESTRAINT SYSTEMS
161
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 severe injury to the
child and front passenger in case of sudden braking
or a collision.
Using a top strap (SportCross: Type A)
SV16109
Follow the next procedure for a child restraint system that
requires the use of a top strap.
04 06.30