2019 LEXUS LX570 ECU

791-2. Lexus Enform
LX570_OM_OM60R07U_(U) 1
For safety and security ■
Certification for Lexus Enfo rm with Safety Connect

80 1-3. Theft deterrent system
LX570_OM_OM60R07U_(U)Engine immobilizer system The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled. ■
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 touchi ng a key to the security system (key with a
built-in transponder ch ip) of another vehicleThe vehicle’s keys have built-in tran sponder chips that prevent the engine
from starting if a 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.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

811-3. Theft deterrent system
LX570_OM_OM60R07U_(U) 1
For safety and security ■
Certifications for the en gine immobilizer system 
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico 
For vehicles sold in Canada
WARNING ■
Certifications for the en gine immobilizer system
Changes or modifications not expressly appr oved by the party responsible for compli-
ance could void the user’s authority to operate the equipment.
NOTICE ■
To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.

831-3. Theft deterrent system
LX570_OM_OM60R07U_(U) 1
For safety and security ■
System maintenance
The vehicle has a maintenance-free type alarm system. ■
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing. ●
Nobody is in the vehicle. ●
The windows and moon roof are closed before the alarm is set. ●
No valuables or other personal items are left in the vehicle.■
Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.) ●
The doors are unlocked using the mechanical
key.
●
A person inside the vehicle opens a door or
hood, or unlocks the vehicle using an inside
lock button.
●
The battery is recharged or replaced when the
vehicle is locked. (  P. 552)

121
LX570_OM_OM60R07U_(U) 3-2. Opening, closing and locking the doors
3
Operation of each component
Side doors ◆ Smart access system with push-button start
Carry the electronic key to enable this function.
Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s door handle to unlock all the
doors.
* Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for
3 seconds after the doors are locked.
* : The door unlock settings can be
changed. (  P. 126)
Touch the lock sensor (the indentatio n on the upper part or lower part of
the handle) to lock the doors. Check that the door is securely locked.
◆ Wireless remote control
Locks all the doors Check that the door is securely
locked.
Unlocks all the doors Pressing the button unlocks the
driver’s door. Pressing the button
again unlocks the other doors.
Press and hold to open the windows
and moon roof.
*
* : These settings must be cust omized at your Lexus dealer.The vehicle can be locked and unlock ed using the entry function, wireless
remote control or door lock switch.
Locking and unlocking the doors from the outside 1
2
1
2

122
LX570_OM_OM60R07U_(U) 3-2. Opening, closing and locking the doors■
Operation signals
Doors: A buzzer sounds and the emergency flas hers flash to indicate that the doors have
been locked/unlocked. (Loc ked: once; Unlocked: twice)
Windows and moon roof: A buzzer sounds to indicate that the windows and moon roof
are operating. ■
Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the
security feature automatically locks the vehicle again. ■
When the door cannot be locked by the lock sensor on the upper part of the door han-
dle
■
Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer sounds
continuously. Fully close the door to stop the buzzer, and lock the vehicle once more. ■
Setting the alarm
Locking the doors will set the alarm system. (  P. 82)■
If the smart access system with push-button start or the wireless remote control does
not operate properly ●
Use the mechanical key to lock and unlock the doors. (  P. 549)●
Replace the battery with a new one if it is depleted. (  P. 505)If the door will not lock even when the topside
sensor area is touched, try touching both the
topside and underside sensor areas at the same
time.

128
LX570_OM_OM60R07U_(U) 3-2. Opening, closing and locking the doors
Back door ◆ Smart access system with push-button start
Carry the electronic key to enable this function.
Locks all the doors Check that the door is securely
locked.
Unlocks all the doors The doors cannot be unlocked for 3
seconds after the doors are locked.
◆ Wireless remote control
 P. 121
◆ Door lock switches
 P. 123
Press and hold the switch. The power back door can be operated
even when the back door is locked.
*
* : This setting can be customized so
that the power back door can be
operated only when the back door is
unlocked. (  P. 584)The back door can be locked/unlocke d and opened by the following proce-
dures.
Locking and unlocking the back door 1
2
Opening/closing the back door with the wireless remote control

134
LX570_OM_OM60R07U_(U) 3-2. Opening, closing and locking the doors
WARNING ■
Operating the back door
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resultin g in death or serious
injury. ●
Remove any heavy loads, such as snow and ice, from the back door before opening it.
Failure to do so may cause the back door suddenly shut again after it is opened.●
When opening or closing the back door, thoroughly check to make sure the sur-
rounding area is safe. ●
If anyone is in the vicinity, make sure they are safe and let them know that the back
door is about to open or close. ●
Use caution when opening or closing the ba ck door in windy weather as it may move
abruptly in strong wind.
●
Do not pull on the back door damper stay to close the back door, and do not hang on
the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to break, caus-
ing an accident. ●
If a bicycle carrier or similar heavy object is attached to the back door, it may sud-
denly shut again after being opened, causing someone’s hands, head or neck to be
caught and injured. When installing an acce ssory part to the back door, using a genu-
ine Lexus part is recommended. ●
The back door may suddenly shut if it is not
opened fully. It is more difficult to open or
close the back door on an incline than on a
level surface, so bewa re of the back door
unexpectedly opening or closing by itself.
Make sure that the back door is fully open and
secure before using the luggage compart-
ment. ●
When closing the back door, take extra care
to prevent your fingers etc. from being
caught. Also pay attention to your personal
belongings such as bags and ties. ●
When closing the back door, make sure to
press it lightly on its ou ter surface. If the back
door handle is used to fully close the back
door, it may result in hands or arms being
caught.