2012 Lexus LFA airbag off

15
For your information
Main Owner’s Manual
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle sh own in the illustration may differ from
your vehicle in terms of color and equipment.
Noise from under vehicle after turning off the engine
Approximately five hours after the engine is turned off, you may hear sound coming
from under the vehicle for several minutes. This is the sound of a fuel evaporation
leakage check and, it does not indicate a malfunction.
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, anti-lock brake syst em, SRS airbag system and seat belt pre-
tensioner system, be sure to check with your Lexus dealer for precautionary mea-
sures or special instructions regarding installation.
Grounding of the LFA
Since the LFA is composed of CFRP (Carbo n Fiber Reinforced Plastics) body parts,
the body cannot be used as a ground terminal. As such, this vehicle has specialized
ground terminals. Consult with your Lexus dealer for the locations of the special-
ized ground terminals available for this vehicle. Do not use any portion other than
the specialized ground terminals for grounding, as doing so may cause a fire hazard.

63
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

70
1-7. Safety information
CAUTION
■SRS airbag precautions
●Wear the seat belt correctly.
●If a vinyl cover is put on the area where the SRS knee airbag will deploy, be sure to
remove it.
●Do not wrap seat belt covers or other such items around the area where the SRS
seat belt air bag will inflate.
●Do not strike or apply significant levels of force to the area of the SRS airbag
components shown on P. 63.
Doing so can cause the SRS airbags to malfunction.
●Do not touch any of the component parts immediately after the SRS airbags have
deployed (inflated) as they may be hot.
●If breathing becomes difficult after the SRS airbag has deployed, open a door or
window to allow fresh air in, or leave the vehicle if it is safe to do so. Wash off any
residue as soon as possible to prevent skin irritation.
●If the areas where the SRS airbags are stored, such as the steering wheel pad
and/or seat belt, are damaged or cracked, have them replaced by your Lexus
dealer.

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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

78
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).

122
2-2. Instrument cluster
■Indicators
The indicators inform the driver of th e operating state of the vehicle’s
various systems.
*1: These lights turn on when the ignition switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after the
engine is started, or after a few seconds. There may be a malfunction in a sys-
tem if a light does not come on, or if th e lights do not turn off. Have the vehi-
cle inspected by your Lexus dealer.
*2: The light flashes to indicate that the system is operating. Turn signal indicator
(
P. 1 1 2 ) Slip indicator (
P. 1 6 7 )
(U.S.A.)
Headlight indicator
( P. 1 5 8 ) VSC off indicator
(
 P. 1 6 7 )
(Canada)
Tail light indicator
( P. 1 5 8 ) “TRAC OFF” indicator
(
P. 1 6 7 )
Headlight high beam indi-
cator ( P. 1 5 8 )
(U.S.A.)
Parking brake indicator
( P. 1 1 3 )
SRS airbag on/off indica-
tor ( P. 7 2 )
(Canada)
Parking brake indicator
( P. 1 1 3 )
*1, 2
*1
*1