ECU LEXUS LX570 2015 User Guide

771-3. Adjustable components (s eats, mirrors, steering wheel)
1
Before driving
LX570_OM_OM60L96U_(U) ■ Folding up the third seats
Perform following steps in “Before folding the third seats”.
(  P. 75)
If the switch is pressed and held,
the seat will automatically fold and
lift sideward. (The buzzer sounds
twice when the seat is about to lift.) If the switch is released while the
seat is lifting sideward, operation
will stop and a buzzer will sound
continuously.
Before operating, make sure that
the handle on the rear of the seat-
back is secure.
Remove the seat hook covers
from the underside of the seat
cushion, and install them on the
seat hooks.STEP 1
STEP 2
STEP 3

781-3. Adjustable components (s eats, mirrors, steering wheel)
LX570_OM_OM60L96U_(U) ■ Returning the third seats
Remove the seat hook covers
from the floor and install them into
the underside of the seat cushion.
If the switch is held down the seat
will automatically return to the
folding position. (Buzzer sounds
twice) If the switch is released while
returning to the folding position,
operation will stop and a buzzer
will sound continuously.
Pull the handle and raise the seat-
backs. Fix the handle securely in its origi-
nal position after use.
Raise the head restraints.STEP 1
STEP 2
STEP 3
STEP 4

821-3. Adjustable components (s eats, mirrors, steering wheel)
LX570_OM_OM60L96U_(U) CAUTION■
Seat adjustment
Do not recline the seat mo re than necessary when the vehicle is in motion to
reduce the risk of slid ing under the lap belt.
If the seat is too reclined, during an accide nt the lap belt may slide past the hips and
apply restraint forces directly to the a bdomen or your neck may contact the shoul-
der belt, increasing the risk of death or serious injury.■
When the seatback is folded ●
Do not sit on or place anything on the seatback while driving.●
Be sure to install the seat hook covers on the seat hooks, or you may get burned
when they become hot.■
When returning the seatbacks to their original position
Observe the following precauti ons. Failure to do so may result in death or serious
injury. ●
Be careful not to get your hand s or feet pinched in the seat.●
Make sure the seats are secu rely locked. Failure to do so will prevent the seat
belt from operating properly. ●
Check that the seat belts are not twisted or caught under the seat. ●
Arrange the seat belts in the proper positions for ready use.■
Avoiding damage to seat components
Do not hang or attach anything on the seatback striker.
NOTICE■
Before tumbling, folding up the seats
The seat belts and buckles must be stowed. ■
After returning the third seat
Make sure that the handle on the rear of the seatback has been secured.

961-3. Adjustable components (s eats, mirrors, steering wheel)
LX570_OM_OM60L96U_(U) ■
Replacing the belt after the pr etensioner has been activated
If the vehicle is involved in multiple coll isions, 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 once, 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 cannot 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_OM60L96U_(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 wh en installing a chil d restraint system,
because the belt will not securely hold the child restraint sy stem, 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 sa fe 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 th e buckle release button on the extender,
not on the seat belt.
This helps prevent damage to the vehicle interior and the extender itself.

1191
Before driving
LX570_OM_OM60L96U_(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 to uching a key to the security system (key
with a built-in transponde r chip) of another vehicleThe vehicle’s keys have built-in tran sponder chips that prevent the engine
from starting if a key has not been prev iously registered in the vehicle’s on-
board computer.
Never leave the keys inside the ve hicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guar-
antee absolute security aga inst all vehicle thefts.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that th e system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNI-
TION ON mode to indicate
that the system has been can-

1281-7. Safety information
LX570_OM_OM60L96U_(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

1291-7. Safety information
1
Before driving
LX570_OM_OM60L96U_(U) Your vehicle is equipped with AD VANCED AIRBAGS designed based
on the US motor vehicle safety stan dards (FMVSS208). The airbag sen-
sor assembly (ECU) co ntrols airbag deploy ment based on information
obtained from the sensors etc. shown in the system components diagram
above. This information includes crash 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 th e motion of the occu-
pants. ■
If the SRS airbag s deploy (inflate)●
Bruising and slight abrasions may result from contact with a deploying (inflat-
ing) SRS airbag. ●
A loud noise and white powder will be emitted. ●
Parts of the airbag module (steering wh eel hub, airbag cover and inflator) as
well as the front seats, second seats, an d parts of the front, center and rear pil-
lars, and roof side rail, may be hot for se veral 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 th e 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 auto matically treats the call as an emer-
gency and helps to dispatch the necessary emergency services. (  P. 726)

1351-7. Safety information
1
Before driving
LX570_OM_OM60L96U_(U) 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 se at should be as far from the airbag as possible with
the seatback adjusted, so the front passenger sits upright.●
Improperly seated and/or restrained in fants and children can be killed or seri-
ously injured by a deploying airbag. An in fant 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 re ar seats are safer for infants and chil-
dren than the front passenger seat. (  P. 146) ●
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 deat h or serious injury in
the event of collision. Be sure to wear the
seat belt with the seat belt extender.

1491-7. Safety information
1
Before driving
LX570_OM_OM60L96U_(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 an d 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 illuminates. 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 pa ssenger seat since there is no top tether
strap anchor for the front pa ssenger seat. Adjust the seat back 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 restrain t system with the seat belt
extender connected to the seat belt, the se at 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.