2018 LEXUS LX570 door lock

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LX570_OM_OM60Q78U_(U) 3-2. Opening, closing and locking the doors■
Jam protection function
If anything obstructs the power back door while it is closin g/opening, the back door will
automatically operate in the opposite direction. ■
When re-connecting the battery
To enable the power back door to op erate properly, perform the following:●
Unlock the back door using the door lock switch ●
Close the back door manually ■
Back door closer
In the event that the upper and lower back doors are left slightly open, the back door
closer will automatically close them to the fully closed position. ■
Fall-down protection function
While the power back door is opening automa tically, applying excessi ve force to it will
stop the opening operation to prevent the po wer back door from rapidly falling down.■
Back door reserve lock function
This function is a function which reserves lo cking of all doors, be forehand, when the back
door is open. When the following procedure is performed, all the doors except the back
door are locked and then back door will also be locked at the same time it is closed.
Close all doors, except the back door.
Perform any of the following during the auto matic closing operation of the back door.
• Press the lock button on th e wireless remote control. ( → P. 110)
• Touch the lock sensor on the side door handle with carrying the electronic key on
your person. ( → P. 115)
Also, if the back door does not fully clos e due to the operation of the jam protection
function, etc., while the back door is automatically closing after a reserve lock opera-
tion is performed, the reserv e lock function is canceled and all the doors will unlock.■
Customization
Settings (e.g. switch operation) can be changed.
(Customizable features → P. 580) 1
2

LX570_OM_OM60Q78U_(U) 1273-2. Opening, closing and locking the doors
3
Operation of each component WARNING ■
While driving ●
Keep the back door closed while driving.
If the back door is left open, it may hit near-by objects while dr iving or luggage may
be unexpectedly thrown out, causing an accident.
In addition, exhaust gases may enter the ve hicle, causing death or a serious health
hazard. Make sure to close th e back door before driving.●
Before driving the vehicle, make sure that the back door is fully closed. If the back
door is not fully closed, it may open unexpe ctedly while driving, causing an accident.●
Never let anyone sit in the luggage compartment. In the event of sudden braking,
sudden swerving or a collision, they are susceptible to death or serious injury. ■
When children are in the vehicle
Observe the following precautions.
Failure to do so may result in death or serious injury.●
Do not allow children to play in the luggage compartment.
If a child is accidentally lo cked in the luggage compartment, they could have heat
exhaustion or other injuries. ●
Do not allow a child to open or close the back door.
Doing so may cause the back door to move unexpectedly, or cause the child’s hands,
head, or neck to be caught by the closing back door.

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LX570_OM_OM60Q78U_(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.

LX570_OM_OM60Q78U_(U) 1293-2. Opening, closing and locking the doors
3
Operation of each component WARNING ■
Back door closer
●
Use caution when using the back door closer as it still operates when the power back
door system is canceled. ●
In the event that the upper or lower back door
is left slightly open, the back door closer will
automatically close it to the fully closed posi-
tion. It takes several seconds before the back
door closer begins to operate. Be careful not
to catch fingers or anything else in the back
door, as this may cause bone fractures or
other serious injuries.

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LX570_OM_OM60Q78U_(U) 3-2. Opening, closing and locking the doors
WARNING ■
Power back door
Observe the following precautions wh en operating the power back door.
Failure to do so may cause death or serious injury. ●
Check the safety of the surrounding area to make sure there are no obstacles or any-
thing that could cause any of yo ur belongings to get caught.●
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. ●
If the power back door system is turned off with the main switch while the back door is
operating automatically, the automatic operat ion is stopped. The back door then has
to be operated manually. Take extra care when on an incline, as the back door may
open or close unexpectedly. ●
When the back door opener switch is pr essed a second time during an automatic
open operation that was performed by pre ssing the back door opener switch, the
operation stops and the back door has to be operated manually. At this time, take
extra care, as the back door may open or close abruptly. ●
If the operating conditions of the power back door are no longer met, a buzzer may sound
and the back door may stop opening or closin g. The back door then has to be operated
manually. Take extra care when on an incline, as the back door may open or close abruptly.●
On an incline, the back door may suddenly shut after it opens. Make sure the back
door is fully open and secure. ●
In the following situations, the power back door may detect an abnormality and auto-
matic operation may be stopped. In this case, the back do or has to be operated man-
ually. Take extra care when on an incline, as the back door may open or close abruptly.
• When the back door contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine switch is turned to
IGNITION ON mode or the engine is started during automatic operation●
If a bicycle carrier or similar heavy object is attached to the back door, the power back door
may not operate, causing itself to malfunction, or the back door may suddenly shut again
after being opened, causing some one’s hands, head or neck to be caught and injured. When
installing an accessory part to the back d oor, using a genuine Lexus part is recommended.■
Jam protection function
Observe the following precautions.
Failure to do so may cause death or serious injury. ●
Never use any part of your body to intentionally activate the jam protection function. ●
The jam protection function may not work if something gets caught just before the
back door fully closes. Be careful no t to catch fingers or anything else.●
The jam protection function may not work depending on the shape of the object that
is caught. Be careful not to catch fingers or anything else.

LX570_OM_OM60Q78U_(U) 1313-2. Opening, closing and locking the doors
3
Operation of each component NOTICE ■
Back door damper stays
The back door is equipped with damper stays that hold the back door in place.
Observe the following precautions.
Failure to do so may cause damage to the back door damper stay, resulting in malfunc-
tion.
■
To prevent back door closer malfunction
Do not apply excessive force to the back door while the back door closer is operating.■
To prevent damage to the power back door ●
Make sure that there is no ice between the back door and frame that would prevent
movement of the back door. Operating the power back door when excessive load is
present on the back door may cause a malfunction. ●
Do not apply excessive force to the back door while the power back door is operat-
ing. ●
Take care not to damage the sensors (installed on the right and left edges of the
power back door) with a knife or other sharp object. If the sensor is disconnected, the
power back door will not operate in automatic operation. ■
When operating the back door reserve lock function
Make sure to carry the electronic key on your person.
If the electronic key is return ed inside the vehicle during the closing operation, it may
be locked even if the electronic key is inside the vehicle depending on the location of
electronic key.
Before leaving the vehicle, make sure th at all the doors are closed and locked.●
Do not attach any foreign objects, such as
stickers, plastic sheets , or adhesives to the
damper stay rod. ●
Do not touch the damper stay rod with gloves
or other fabric items. ●
Do not attach any accessories other than
genuine Lexus parts to the back door. ●
Do not place your hand on the damper stay or
apply lateral forces to it.
Damper stay

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LX570_OM_OM60Q78U_(U) 3-2. Opening, closing and locking the doors
Smart access system with push-button start ●
Locks and unlocks the side doors ( → P. 115)●
Locks and unlocks the back door ( → P. 122)●
Starts the engine ( → P. 205)■
Antenna locationThe following operations can be perfor med simply by carrying the electronic
key on your person, for example in your pocket. The driver should always
carry the electronic key.
Antennas outside the cabin
Antennas inside the cabin
Antenna outside the luggage compartment 1
2
3

LX570_OM_OM60Q78U_(U) 1333-2. Opening, closing and locking the doors
3
Operation of each component ■
Effective range (areas within which the electronic key is detected)
When starting the engine or changing engine switch modes
The system can be operated when the electronic key is inside the vehicle.■
Alarms and warning indicators
A combination of exterior and interior alar ms as well as warning messages shown on the
multi-information display are used to prevent theft of the vehicle and accidents resulting
from erroneous operation. Take appropriate measures in response to any warning mes-
sage on the multi-information display.
The following table describes circumstan ces and correction procedures when only
alarms are sounded. When locking or unlocking the doors
The system can be operated when the elec-
tronic key is within about 2.3 ft. (0.7 m) of
either of the outsid e front door handle.
(Only the doors detecting the key can be
operated.)
Alarm Situation Correction procedure
Exterior alarm
sounds once for 5
seconds An attempt was made to lock the
vehicle while a door is open Close all of the doors and
lock the doors again
Interior alarm pings
continuously The engine switch was turned to
ACCESSORY mode while the
driver’s door was open (or the
driver’s door was opened while
the engine switch was in ACCES-
SORY mode) Turn the engine switch off
and close the driver’s door
The engine switch was turned off
while the driver’s door was open Close the driver’s door