light lexus LFA 2012 Technical Information / LEXUS 2012 LFA (OM77006U) Owner's Manual

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1
1-6. Theft deterrent system
Before driving
Alarm
The system sounds the alarm and flashes the lights when forcible entry is
detected.
■ Triggering of the alarm
The alarm is triggered in the following situations when the alarm is set:
●A locked door is unlocked or op ened in any way other than using
the wireless remote control or key.
● The hood or rear hatch is opened.
● The tilt sensor detects a change of vehicle inclination.
■ Setting the alarm system
Close the doors, rear hatch and
hood, and lock both side doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors.
● Start the engine. (The alarm will be deactivated or stopped after a
few seconds.)

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1-7. Safety information
1
Before driving
Airbag system componentsYour vehicle is equipped with AD VANCED AIRBAGS designed based
on US motor vehicle sa fety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and passenger. The
driver airbag system consist s of the driver’s seat position sensor etc. The
passenger’s airbag system consists of the passenger occupant classifica-
tion sensor etc. Passenger airbag
Seat belt airbag sensors
Occupant detection system
ECU
Occupant detection system
sensor
Seat belt buckle switches
Seat belt airbags
Airbag sensor assembly
Driver's seat position sensor
Driver’s knee airbag
Driver airbag
SRS warning light
“A I R B A G O N ” a n d “A I R
BAG OFF” indicator lights
Front airbag and seat belt air-
bag sensors

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1-7. Safety information
The main SRS airbag system components are shown above. The SRS air-
bag system is controlled by the airb ag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemica l reaction in the inflators quickly
fills the airbags with non-toxic gas to he lp restrain the motion of the occu-
pants.
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasion s may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel , airbag cover and inflator) as well as
the seats may be hot for several minutes. The airbag itself may also be hot.
●The windshield may crack.
●For Safety Connect subscribers, if the SRS airbags deploy or in the event of a
severe rear-end collision, the system is designed to send an emergency call to
the response center, notifying them of the vehicle’s location (without needing to
push the “SOS” button) and an agent will attempt to speak with the occupants
to ascertain the level of emergency and assistance required. If the occupants
are unable to communicate, the agent automatically treats the call as an emer-
gency and helps to dispatch the necessary emergency services. ( P. 2 1 9 )

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1-7. Safety information
CAUTION
■SRS airbag precautions
Observe the following precautions regarding the airbags.
Failure to do so may cause death or serious injury.
●The driver and passenger in the vehicle must wear their seat belts properly.
The SRS airbags are supplemental devices to be used with the seat belts.
●The SRS driver airbag deploys with considerable force, and can cause death or
serious injury especially if the driver is very close to the airbag. The National
Highway Traffic Safety Administration (“NHTSA”) advises:
Since the risk zone for the driver airbag is the first 2 - 3 in. (50 - 75 mm) of infla-
tion, placing yourself 10 in. (250 mm) from your driver airbag provides you with a
clear margin of safety. This distance is measured from the center of the steering
wheel to your breastbone. If you sit less than 10 in. (250 mm) away now, you can
change your driving position in several ways:
• Move your seat to the rear as far as you can while still reaching the pedals
comfortably.
• Slightly recline the back of the seat. Although vehicle designs vary, many dr ivers can achieve the 10 in. (250 mm)
distance, even with the driver’s seat all the way forward, simply by reclining
the back of the seat somewhat. If reclining the back of your seat makes it hard
to see the road, raise yourself by using a firm, or raise the seat if your vehicle
has that feature.
• If your steering wheel is adjustable, ti lt it downward. This points the airbag
toward your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA above, while still main-
taining control of the foot pedals, steering wheel, and your view of the instrument
panel controls.

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1-7. Safety information
Passenger occupant classification system
Your vehicle is equipped with a passenger occupant classification system. This
system detects the conditions of the passenger seat and activates or deacti-
vates the devices for the passenger.
SRS warning light
“AIR BAG ON” indicator light
“AIR BAG OFF” indicator light
Passenger’s seat belt reminder light

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1-7. Safety information
1
Before driving
Condition and operation in the passenger occupant classification system
■Adult*1
■Child *3 or child restraint system*4
■Unoccupied
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
ON”
SRS warning light Off
Passenger’s seat belt reminder light Flashing
*2
DevicesPassenger airbag
Activated
Seat belt airbag on the passenger seat
Passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
OFF”
*5
SRS warning light Off
Passenger’s seat belt reminder light Flashing
*2
DevicesPassenger airbag
Deactivated
Seat belt airbag on the passenger seat
Passenger’s seat belt pretensioner Activated
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights
Not illuminated
SRS warning light Off
Passenger’s seat belt reminder light
Devices Passenger airbag
Deactivated
Seat belt airbag on the passenger seat
Passenger’s seat belt pretensioner

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1-7. Safety information
■There is a malfunction in the system
*
1: The system judges a person of adult size as an adult. When a smaller adult sits in the passenger seat, the system may recognize him/her as
a child depending on his/her physique and posture.
*
2: In the event the passenger does not wear a seat belt.
*
3: When a larger child who has outgrow n a child restraint system sits in
the passenger seat, the system may recognize him/her as an adult
depending on his/her physique or posture.
*
4: Never install a rear-facing child restraint system on the passenger
seat. If a child restraint system needs to be installed, install a forward
facing child restraint system on the passenger seat. ( P. 76 )
*
5: In case the indicator is not illumina ted, consult this manual on how to
install the child restraint system properly. ( P. 8 0 )
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
OFF”
SRS warning light On
Passenger’s seat belt reminder light Off
Devices Passenger airbag
Deactivated
Seat belt airbag on the passenger seat
Passenger’s seat belt pretensioner Activated

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1-7. Safety information
1
Before driving
CAUTION
■Passenger occupant classification system precautions
Observe the following precautions regarding the passenger occupant classification
system.
Failure to do so may cause death or serious injury.
●Wear the seat belt properly.
●Make sure the passenger’s seat belt tab has not been left inserted into the buckle
before someone sits in the passenger seat.
●Do not apply a heavy load to the passenger seat or equipment.
●Do not put objects under the passenger seat.
●Keep the passenger seatback as upright as possible when the vehicle is moving.
Reclining the seatback excessively may le ssen the effectiveness of the seat belt
system.
●If an adult sits in the passenger seat, the “AIR BAG ON” indicator light should illu-
minated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger to sit
up straight, well back in the seat, feet on the floor, and with the seat belt worn cor-
rectly. If the “AIR BAG OFF” indicator still remains illuminated, ask the passenger
to move the passenger seat fully rearward.
●If a child restraint system needs to be installed, install a forward facing child
restraint system on the passenge r seat in the proper manner. (P. 8 0 )
●Do not modify or remove the seats.
●Do not kick the passenger seat or subject it to severe impact. Otherwise, the SRS
warning light may come on to indicate a malfunction of the detection system. In
this case, contact your Lexus dealer immediately.
●Do not use a seat accessory, such as a cushion or seat cover, that covers the seat
cushion surface.
●Do not modify or replace the upholstery of the seat.

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1-7. Safety information
CAUTION
■Child restraint precautions
●For effective protection in automobile accidents and sudden stops, a child must
be properly restrained, using a seat belt or child restraint system depending on
the age and size of the child. Holding a child in your arms is not a substitute for a
child restraint system. In an accident, th e child can be crushed against the wind-
shield, or between you and the vehicle's interior, causing death or serious injury.
●Never install a rear-facing child restraint system on the passenger seat even if the
“AIR BAG OFF” indicator light is illuminated. In the event of an accident, the force
of the rapid inflation of the passenger ai rbag can cause death or serious injury to
the child if the rear-facing child restraint system is installed on the passenger seat.
●A forward-facing child restraint system may be installed on the passenger seat
only when it is unavoidable. Adjust the seatback as upright as possible and always
move the seat as far back as possible even if the “AIR BAG OFF” indicator light is
illuminated, because the passenger airbag could inflate with considerable speed
and force. Otherwise, the child may be killed or seriously injured.
●Make sure you have complied with all inst allation instructions provided by the
child restraint manufacturer and that the sy stem is properly secured. If it is not
secured properly, it may cause death or seri ous injury to the child in the event of a
sudden stop, sudden swerve or an accident.
●When installing a child restraint system, do not add clips to the shoulder belt, as
doing so may prevent the seat belt airbags from operating properly.
●After using the child restraint system, check the vehicle's seat belt for any dam-
age. If the seat belt is damaged, have it replaced by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.

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1-7. Safety information
■Laws and regulations pertaining to anchorages
Child restraint systems conforming to FMVSS213 or CMVSS213 specifications
can be used.
This vehicle is designed to conform to the SAE J1819.
CAUTION
■When installing a booster seat
To prevent the belt from going into ALR lo ck mode, do not fully extend the lap belt.
ALR mode causes the belt to tighten only. This could cause injury or discomfort to
the child. ( P. 3 8 )
■When installing a child restraint system
Follow the directions given in the child restraint system installation manual and fix
the child restraint system securely in place.
If the child restraint system is not correctl y fixed in place, the child or driver may be
seriously injured or even killed in the ev ent of sudden braking, sudden swerving or
an accident.
●When a booster seat is installed, always ensure that the shoulder belt is posi-
tioned across the center of the child's shoulder. The belt should be kept away
from the child's neck, but not so that it could fall off the child's shoulder. Failing to
do so may result in death or serious inju ry in the event of sudden braking, sudden
swerving or an accident.
●Only put a forward facing child restraint
system on the seat when unavoidable.
When installing a forward facing child
restraint system on the passenger seat,
move the seat as far back as possible even
if the “AIR BAG OFF” in dicator light is illu-
minated. Failing to do so may result in
death or serious injury if the airbags deploy
(inflate).