2021 LEXUS LX570 Owners Manual

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1373-2. 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_OM60T33U_(U)3-2. Opening, closing and locking the doors
Smart access system with push-button start
●Locks and unlocks the side doors (
P. 121)
●Locks and unlocks the back door (P. 128)
●Starts the engine ( P. 211)
■Antenna location
The 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 compartment1
2
3

LX570_OM_OM60T33U_(U)
1393-2. Opening, closing and locking the doors
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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 outside front door handle.
(Only the doors detecting the key can be
operated.)
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 5
secondsAn attempt was made to lock the
vehicle while a door is openClose 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 openClose the driver’s door

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LX570_OM_OM60T33U_(U)3-2. Opening, closing and locking the doors
■Battery-saving function
The battery-saving function w
ill be activated in order to prevent the electronic key bat-
tery and the battery from being discharged while the vehicle is not in operation for a long
time.
●In the following situations, the smart acce ss system with push-button start may take
some time to unlock the doors.
• The electronic key has been le ft in an area of approximately 6 ft. (2 m) of the outside
of the vehicle for 10 minutes or longer.
• The smart access system with push-button st art has not been used for 5 days or lon-
ger.
●If the smart access system with push-button start has not been used for 14 days or lon-
ger, the doors cannot be unlocked at any doors except the driver’s door. In this case,
take hold of the driver’s d oor handle, or use the wireless remote control or the mechan-
ical key, to unlock the doors.
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from re ceiving radio waves.
The smart access system with push-button st art uses weak radio waves. In the following
situations, the communication between the electronic key and the vehicle may be
affected, preventing the smar t access system with push-but ton start, wireless remote
control and engine immobilizer system from operating properly.
(Ways of coping: P. 550)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas st ation, radio station, large display, airport or
other facility that generates strong radio wave s or electrical noise
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Portable radio, cellular phone, cordle ss phone or other wireless communication
device
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the smart
access system with push -button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

LX570_OM_OM60T33U_(U)
1413-2. Opening, closing and locking the doors
3
Operation of each component
●When carrying the electronic key together with the following devices that emit radio
waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or person al digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win-
dow
●When the electronic key is placed near a battery charger or electronic devices
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the system
may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the ground, or in a high place when the doors are locked or unlocked.
• The electronic key is on the instrument panel, luggage cover (if equipped) or floor,
or in the door pockets or glove box when the engine is started or engine switch
modes are changed.
●Do not leave the electronic key on top of th e instrument panel or near the door pockets
when exiting the vehicle. Depending on the radio wave reception conditions, it may be
detected by the antenna outside the cabin an d the doors will become lockable from the
outside, possibly trapping the electronic key inside the vehicle.
●As long as the electronic key is within th e effective range, the doors may be locked or
unlocked by anyone. However, only the door s detecting the electronic key can be used
to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start the engine
if the electronic key is near the window.
●The doors may unlock or lock if a large amou nt of water splashes on the door handle,
such as in the rain or in a car wash, when th e electronic key is within the effective range.
(The doors will automatically be locked af ter approximately 60 seconds if the doors
are not opened and closed.)
●Touching the door lock or unlock sensor while wearing gloves may prevent lock or
unlock operation.
●If the wireless remote control is used to lo ck the doors when the electronic key is near
the vehicle, there is a possibility that the d oor may not be unlocked by the entry func-
tion. (Use the wireless remote control to unlock the doors.)
●When the lock operation is performed using the lock sensor, recognition signals will be
shown up to two consecutive times. After this, no recognition signals will be given.
●If the door handle becomes wet while the el ectronic key is within the effective range,
the door may lock and unlock repeatedly. In this case, follow the following correction
procedures to wash the vehicle.
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle. (Take
care to ensure that the key is not stolen.)
• Set electronic key to battery-saving mode to disable the smart access system with push-button start. ( P. 140)

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LX570_OM_OM60T33U_(U)3-2. Opening, closing and locking the doors
●If the electronic key is inside the vehicle
and a door handle becomes wet during a car
wash, a message may be shown on the mult i-information display and a buzzer will
sound outside the vehicle. To turn off the alarm, lock all the doors.
●The lock sensor may not work properly if it comes into contact with ice, snow, mud, etc.
Clean the lock sensor and attempt to operate it again, or use the lock sensor on the
lower part of the door handle.
●If there is another electronic key in the de tection area, it may take slightly longer to
unlock the doors after the do or handle is gripped or back door unlock switch is
pressed.
●A sudden approach to the effective range or door handle may prevent the doors from
being unlocked. In this case, return the door handle to the original position and check
that the doors unlock before pulling the door handle again.
■When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the
vehicle.
●The smart access system wi th push-button start can be deactivated in advance.
(  P. 584)
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when operating the system from the outside of the
vehicle.
Depending on the position and holding condition of the electronic key, the key may not
be detected correctly and the system may not operate properly. (The alarm may go off
accidentally, or the door lock prev ention function may not operate.)
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the doors: Use the mechanical key. (P. 550)
●Starting the engine: P. 551
■Customization
Settings (e. g. smart access system with push-button start) can be changed.
(Customizable features: P. 584)
■If the smart access system with push-button start has been deactivated in a customized
setting
●Locking and unlocking the doors:
Use the wireless remote cont rol or mechanical key. (P. 121, 550)
●Starting the engine and changing engine switch modes: P. 551
●Stopping the engine: P. 212

LX570_OM_OM60T33U_(U)
1433-2. Opening, closing and locking the doors
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Operation of each component
■Certification for the smart access system with push-button start
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
For vehicles sold in Canada

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LX570_OM_OM60T33U_(U)3-2. Opening, closing and locking the doors
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
For vehicles sold in Canada