ECU LEXUS LX570 2014 User Guide

961-3. Adjustable components (s eats, mirrors, steering wheel)
LX570_OM_OM60L21U_(U) ■
Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate for the
first collision, but will not activate for the second or subsequent collisions. ■
Seat belt extender
CAUTION
Observe the following precautions to reduce the risk of injury in the event of sudden
braking, sudden swerving or an accident.
Failing to do so may cause death or serious injury. ■
Wearing a seat belt ●
Ensure that all passengers wear a seat belt. ●
Always wear a seat belt properly. ●
Each seat belt should be used by one person only. Do not use a seat belt for more
than one person at on ce, including children.●
Lexus recommends that children be seated in the rear seat and always use a seat
belt and/or an appropriate child restraint system. ●
Do not recline the seat any more than necessary to achieve a proper seating
position. The seat belt is most effective when the occupants are sitting up straight
and well back in the seats. ●
Do not wear the shoulder belt under your arm. ●
Always wear your seat belt low and snug across your hips. If your seat belts cann ot be fastened securely
because they are not long enough, a person-
alized seat belt extender is available from
your Lexus dealer free of charge.

991-3. Adjustable components (s eats, mirrors, steering wheel)
1
Before driving
LX570_OM_OM60L21U_(U) CAUTION■
Using a seat belt extender ●
Do not wear 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, because
the belt will not securely hold the child restraint system, increasing the risk of
death or serious injury in the event of a sudden stop, sudden swerve or accident.●
The personalized extender may not be safe on another vehicle, when used by
another person, or at a different seatin g position other than the one originally
intended.
NOTICE■
When using a seat belt extender
When releasing the seat belt, press on the buckle release button on the extender,
not on the seat belt.
This helps prevent damage to the vehi cle interior and the extender itself.

1171
Before driving
LX570_OM_OM60L21U_(U) 1-6. Theft deterrent system
Engine immobilizer system
■
System maintenance
The vehicle has a maintenance-free type engine immobilizer system. ■
Conditions that may cause the system to malfunction ●
If the key is in contact with a metallic object ●
If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicleThe vehicle’s keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle’s
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.

1261-7. Safety information
LX570_OM_OM60L21U_(U) Airbag system components
Front passenger occupant
classification system
(ECU & sensors)
Knee airbags
Curtain shield airbags
Front passenger airbag
AIR BAG ON and AIR BAG
OFF indicator lights
Side impact sensors (front
door)
Side airbags (front seats)
SRS warning light and
“RSCA OFF” indicator light
Side impact sensors (rear) Side airbags
(second outboard seats)
Driver airbag
Driver’s seat position sensor
Driver’s seat belt buckle
switch
Safing sensor (rear)
Roll sensing of curtain shield
airbags off switch
Airbag sensor assembly
Front impact sensors
Front passenger’s seat belt
buckle switch
Seat belt pretensioners and
force limiters

1271-7. Safety information
1
Before driving
LX570_OM_OM60L21U_(U) Your vehicle is equipped with AD VANCED AIRBAGS designed based
on the US motor vehicle safety st andards (FMVSS208). The airbag sen-
sor assembly (ECU) controls airbag deployment based on information
obtained from the sensors etc. show n in the system components diagram
above. This information includes cras h severity and occupant informa-
tion. As the airbags deploy, a chemica l reaction in the inflators quickly fills
the airbags with nontoxic gas to help restrain the motion of the occu-
pants. ■
If the SRS airbags deploy (inflate) ●
Bruising and slight abrasions 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 hub, airbag cover and inflator) as
well as the front seats, second seats, and parts of the front, center and rear pil-
lars, and roof side rail, may be hot for several minutes. The airbag itself may also
be hot. ●
The windshield may crack. ●
For Safety Connect subscriber s, 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. 7 2 2 )

1331-7. Safety information
1
Before driving
LX570_OM_OM60L21U_(U) CAUTION■
SRS airbag precautions
●
The SRS front passenger airbag also depl oys 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 airbag as possible with
the seatback adjusted, so the front passenger sits upright. ●
Improperly seated and/or restrained infants and children can be killed or seri-
ously 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 ar e safer for infants and children than the
front passenger seat. (  P. 144) ●
If the seat belt extender has been con-
nected to the front seat belt buckles but the
seat belt extender has not also been fas-
tened to the latch plate of the seat belt, the
SRS front airbags will judge that the driver
and front passenger are wearing the seat
belt even though the seat belt has not been
connected. In this case, the SRS front air-
bags may not activate correctly in a colli-
sion, resulting in death or serious injury in
the event of collision. Be sure to wear the
seat belt with the seat belt extender.

1471-7. Safety information
1
Before driving
LX570_OM_OM60L21U_(U) CAUTION■
Using a child restraint system
The use of a child restraint system not suitable for the vehicle may not properly
secure the infant or child, resulting in serious injury or even death. ■
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 chil d in your arms is not a substitute for a
child restraint system. In an accident, the child can be crushed against the wind-
shield, or between you and the vehicle’s interior. ●
Lexus strongly urges the use of a proper child restraint system that conforms to
the size of the child, installed on the rear seat. According to accident statistics, the
child is safer when properly restrained in the rear seat than in the front seat.●
Never install a rear-facing child restraint system on the front passenger seat even
if the AIR BAG OFF indicator light illumina tes. In the event of an accident, the
force of the rapid inflation of the front passenger airbag can cause death or seri-
ous injury to the child if the rear-facing child restraint system is installed on the
front passenger seat. ●
A forward-facing child restraint system may be installed on the front passenger
seat only when it is unavoidable. A child restraint system that requires a top tether
strap should not be used in the front passenger seat since there is no top tether
strap anchor for the front passenger seat. Adjust the seatback as upright as possi-
ble and always move the seat as far back as possible even if the AIR BAG OFF
indicator light illuminates, because the fr ont passenger airbag could inflate with
considerable speed and force. Otherwise, the child may be killed or seriously
injured. ●
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 a sudden stop, sudden swerve or accident.

1481-7. Safety information
LX570_OM_OM60L21U_(U) CAUTION■
Child restraint precautions ●
Do not allow the child to lean his/her head or any part of his/her body against the
door or the area of the seat, front and rear pillars or roof side rail from which the
side airbags or curtain shield airbags deploy even if the child is seated in the child
restraint system. It is dangerous if the side airbags and curtain shield airbags
inflate, and the impact could cause de ath or serious injury to the child.●
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 sw erving or accident.■
When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes twisted
around a child’s neck, it may lead to choking or other serious injuries that could
result in death.
If this occurs and the buckle cannot be un fastened, scissors shou ld be used to cut
the belt. ■
When the child restraint system is not in use ●
Keep the child restraint system properly secu red on the seat even if it is not in use.
Do not store the restraint unsecured in the passenger compartment. ●
If it is necessary to detach the child restraint system, remove it from the vehicle or
store it securely in the luggage compartment. This will prevent it from injuring
passengers in the event of a sudden stop, sudden swerve or accident.

14911-7. Safety information
Before driving
LX570_OM_OM60L21U_(U) Installing child restraints Follow the child restraint system manufacturer’s instructions. Firmly
secure the child restraints to the outboard second seats using the LATCH
anchors or a seat belt. Attach the to p tether strap when installing a child
restraint.
The lap/shoulder belt can be used if your child restraint system is not com-
patible with the LATCH (Lower Anchor s and Tethers for Children) system.
Child restraint LATCH anchors
LATCH anchors are provided
for the outboard second seats.
(Buttons displayi ng the location
of the anchors are attached to
the seats.)
Seat belts equipped with a child
restraint locking mechanism
(ALR/ELR belts except driver’s
seat belt)
Anchor bracket (for top tether
strap) Anchor brackets are provided
for all second seats.

1521-7. Safety information
LX570_OM_OM60L21U_(U) Installing child restraints using a se at belt (child restraint lock function
belt)
■ Rear-facing  Infant seat/Convertible seat
Fold the seatback while pulling the
seatback angle lever. Return the
seatback and secure it at the first
lock position. (  P. 71)
Place the child restraint system on
the second seat facing the rear of
the vehicle.
Run the seat belt through the child
restraint system and insert the
plate into the buckle. Make sure
that the belt is not twisted.STEP 1
STEP 2
STEP 3