system Lexus IS F 2011 Service Manual

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1-6. Theft deterrent system
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Canceling the intrusion sensor
The alarm will be set even when the intrusion sensor is canceled.
To re-enable the intrusion sensor, press the “ENGINE START STOP”
switch or unlock the doors using the wireless remote door lock function
while the intrusion sensor is canceled.
Automatic re-enabling of the intrusion sensor
When the alarm system is set again, the intrusion sensor will also be set.
Intrusion sensor
The sensor may trigger the alarm in the following situations.
Persons or pets are in the vehicle.
Unstable items, such as dangling accessories or clothes hanging on the
coat hooks, are in the vehicle.
The windows or moon roof are open.
The vehicle is parked in a place where extreme vibration or noises occur,
such as in a parking garage.
The vehicle is inside an automatic or high-pressure car wash.
The vehicle experiences impacts, such as hail, lightning strikes, or other
kinds of repeated impacts or vibrations.
Ice or snow is removed from the vehicle, causing the vehicle to receive
repeated impacts or vibrations.
The wind or something similar causes an externally mounted reflectively
coated windshield cover to move.
When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the
alarm may be triggered.
When using the mechanical key to unlock the doors or trunk
Deactivate the alarm.
If the doors or trunk are unlocked using the mechanical key with the alarm
operational, the alarm will be triggered.

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Certification
The sensor installed to vehicles sold other than UK and Ireland is not
allowed to operate in UK.
The latest “DECLARATION of CONFORMITY” (DoC) is available at the
address stated in the DoC.

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NOTICE
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

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1-7. Safety information
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Airbag system components
The main SRS airbag system components are shown above. The
SRS airbag system is controlled by the airbag sensor assembly.
The airbag sensor assembly consists of a safing sensor and an air-
bag sensor.
In certain types of severe frontal or side impacts, the SRS airbag
system triggers the airbag inflators. A chemical reaction in the
inflators quickly fills the airbags with non-toxic gas to help restrain
the motion of the occupants. Knee airbags
Airbag manual on-off
switch
Front passenger airbag
Curtain shield airbags
Side airbags
Passenger airbag indicator
light
Curtain shield airbag sen-
sors
SRS warning lightDriver airbag
Driver's seat belt buckle
switch
Driver's seat position sensor
Side and curtain shield air-
bag sensors
Airbag sensor assembly
Front airbag sensors

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Types of collisions that may not deploy the SRS airbags
(side and curtain shield airbags)
The SRS side airbag and curtain shield airbag system may not activate if the
vehicle is subjected to a collision from the side at certain angles, or a colli-
sion to the side of the vehicle body other than the passenger compartment.
The SRS side airbags and curtain shield airbags are not generally designed
to inflate if the vehicle is involved in a frontal or rear collision, if it rolls
over, or if it is involved in a low-speed side collision.
Collision from the side to the vehicle
body other than the passenger com-
partment
Collision from the side at an angle
Collision from the front
Collision from the rear
Vehicle rollover

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CAUTION
SRS airbag precautions
The SRS front passenger airbag also deploys with considerable force, and
can cause death or serious injury especially if the front passenger is very
close to the airbag. The front passenger seat should be as far from the air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
Improperly seated and/or restrained infants and children can be killed or
seriously injured by a deploying airbag. 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 seats of the vehicle and properly restrained. The rear
seats are the safest for infants and children. (P. 1 1 6 )
Do not sit on the edge of the seat or
lean against the dashboard.
Do not allow a child to stand in front of
the SRS front passenger airbag unit or
sit on the knees of a front passenger.
Do not drive the vehicle while the
driver or passenger have items resting
on their knees.

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CAUTION
Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifica-
tions without consulting any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
The SRS airbags may malfunction or deploy (inflate) accidentally, causing
death or serious injury.
Installation, removal, disassembly and repair of the SRS airbags
Repairs, modifications, removal or replacement of the steering wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars or roof side rails.
Repairs or modifications of the front fender, front bumper, or side of the
occupant compartment
Installation of snow plows, winches, etc. to the front grille (bull bars, kan-
garoo bar etc.)
Modifications to the vehicle's suspension system
Installation of electronic devices such as an RF-transmitter system or CD
players
Modifications to your vehicle for a person with a physical disability

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Child restraint systems
Points to remember
Studies have shown that installing a child restraint on a rear seat is
much safer than installing one to the front passenger seat.
Choose a child restraint system appropriate to the age and size of
the child.
For installation details, follow the instructions provided with the
child restraint system.
General installation instructions are provided in this manual.
(P. 124)
Lexus recommends that you use a child restraint system which
conforms to the regulation “ECE No.44”.
Types of child restraints
Child restraint systems are classified into the following 5 groups
according to the regulation ECE No.44.
Group 0: Up to 10 kg (22 lb.) (0 - 9 months)
Group 0
+: Up to 13 kg (28 lb.) (0 - 2 years)
Group I: 9 to 18 kg (20 to 39 lb.) (9 months - 4 years)
Group II: 15 to 25 kg (34 to 55 lb.) (4 years - 7 years)
Group III: 22 to 36 kg (49 to 79 lb.) (6 years - 12 years)
In this owner's manual, the following popular 3 types of child
restraint systems that can be secured with the seat belts are
explained.
Lexus strongly urges the use of child restraint systems.

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Child restraint system suitability for various seating positions
Provided information in the table shows your child restraint system
suitability for various seating positions.
Front passenger seat
Rear seat Airbag manual on-off
switch
On
Off
0
Up to 10 kg (22 lb.)
(0 - 9 months)X
Never putL1 L1
0
+
Up to 13 kg (28 lb.)
(0 - 2 years)X
Never putL1 L1
I
9 to 18 kg
(20 to 39 lb.)
(9 months - 4 years)L2 L2
II, III
15 to 36 kg
(34 to 79 lb.)
(4 - 12 years)L3 L3
Mass groupsSeating posi-

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IS F_EEKey of letters inserted in the above table:
L1: Suitable for “LEXUS BABY-SAFE (0 to 13 kg [0 to 28 lb.])”
approved for the use in this mass group.
L2: Suitable for “LEXUS DUO+ (without ISOFIX, 9 to 18 kg [20
to 39 lb.])” approved for the use in this mass group.
L3: Suitable for “LEXUS KID (15 to 36 kg [34 to 79 lb.])”
approved for the use in this mass group.
X: Not suitable seat position for children in this mass group.
The child restraint systems mentioned in the table may not be
available outside of the EU area.
Other child restraint systems different from the systems mentioned
in the table can be used, but the suitability of the systems must be
carefully checked with the child restraint system manufacturer and
retailer.