ECO LEXUS RX450H 2019 Workshop Manual

1433-2. Opening, closing and locking the doors
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Operation of each component
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Press and hold the switch for approxi-
mately 1 second.
A buzzer will sound and the power back
door will automatically open or close.
However, if the power back door is
locked, it will not open.
Pressing the switch while the power
back door is opening/closing will stop
the operation.
Pressing and holding the switch again
for approximately 1 second will operate
the power back door in the opposite
direction.
■Back door opener switch
When the power back door is
unlocked: Press the back door
opener switch.
When the power back door is
locked: While carrying an elec-
tronic key, press and hold the back
door opener switch.
A buzzer will sound and the power
back door will automatically open.
Pressing the switch while the power back door is opening/closing will stop the
operation.
■Wireless remote control
 P. 142
Opening/closing the power back door from the inside
Opening the power back door from the outside

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The power back door settings can be ch anged on the multi-information display.
( P. 108)
The position at which the power back door will stop when opened automatically
can be changed.
When setting using the switch
Stop the power back door at the desired position. ( P. 143, 145)
Press and hold the switch on
the lower part of the power back
door for 2 seconds. • When setting is complete, a buzzer will sound 4 times.
• The next time the power back door is opened, it will stop at that
position.
When setting using the multi-information display
The open position can be set usin g the multi-information display. (P. 101)
When setting on the audio system screen
The open position can be set on the audio system screen. ( P. 739)
Priority for the open position is give n to the last position set using the
switch, multi-information displa y, or audio system screen.
To return the adjusted open posi tion to the default position (P. 150)
Changing the setting of the power back door system
Adjusting the open position of the power back door
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Operation of each component
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■Power back door operating conditions
If the following conditions are met with the power back door operation enabled ( P. 112),
the power back door can be opened and closed automatically.
●When an electronic key is being carried an d the back door opener switch is pressed*
●When the wireless remote control is used*
●When the power switch is in ON mode, the vehicle speed must be lower than 2 mph (3
km/h) and one of the following conditions mu st be met in addition to the above condi-
tions:
• The parking brake is engaged.
• The brake pedal is depressed.
• The shift lever is in P.
*: When the operation of the power back door when it is locked has been disabled by a
customized setting, operate the power back door after it has been unlocked.
( P. 741)
Touchless sensor (vehicles with a touchless power back door)
The power back door will open automatically when the touchless sensor operation is
enabled ( P. 112) and the following conditions are met:
●The power back door is fully closed.
●The electronic key is within the operational range ( P. 158)
■Security feature
If the power back door is not opened within approximately 60 seconds after the vehicle
is unlocked, the security feature will automatically lock the doors again.
●A hand is held over the upper part of the rear
emblem with fingers closed. (The upper part of
the rear emblem can also be touched.)
The power back door may also be operated
by holding either of the following over the
upper part of the rear emblem. Make sure to
hold it close enough to the rear emblem.
•A gloved hand
•An elbow

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■Close & lock function
When the power back door is open, this fu nction closes the power back door and then
locks all of the doors simultaneously.
Performing the following procedure will lock all of the doors when the power back door
is completely closed.
Close all of the doors except the power back door.
While carrying an electronic key, press the
switch on the lower part of the
power back door ( P. 145) twice.
A different buzzer than the normal one will sound and then the power back door will
begin closing automatically. When the power back door is closed, all of the doors will
lock simultaneously and operation signals w ill indicate that all of the doors have been
locked.
To enable this function, the fo llowing conditions must be met:
●The most recent power back door operation was an automatic opening operation and
the power back door is stopped.
●No electronic keys for your vehicle are in the vehicle.
■When reconnecting the 12-volt battery
To enable the power back door to operate pr operly, close the power back door manually.
■Jam protection function
■Returning the power back door opening position to the default setting
Sensors are installed in the right and left sides of
the power back door. When the door is auto-
matically closing and the sensors are pushed
due to an object being caught, etc., the jam pro-
tection function will operate.
From that position the door will automatically
move a little in the opposite direction and then
the function will stop.
Press and hold the switch on the lower
part of the power back door for 7 seconds.
A buzzer will sound twice. The next time the
power back door is opened, it will open to the
default position.
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Operation of each component
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■Situations in which the close & lock function may not operate properly
In the following situations, the close & lock function may not operate properly:
●If the switch on the lower part of the power back door ( P. 145) is pressed by a
hand which is holding an electronic key
●If the switch on the lower pa rt of the power back door (P. 145) is pressed
when the electronic key is in a bag, etc. that is placed on the ground
●If the switch on the lower pa rt of the power back door (P. 145) is pressed with
the electronic key not near the vehicle.
■Situations in which the touchless sensor may malfunction (vehicles with a touchless
power back door)
In the following situations, the touchless sensor may operate unintentionally.
To prevent unintentional operat ion, keep the electronic key out of the operational range
or disable the touchless sensor operation. ( P. 112)
●When a large amount of water is applied to the rear emblem, such as in heavy rain
●When the vehicle is being washed and water is applied to the rear emblem
●When dirt is wiped off the rear emblem
●If someone leans toward or against the rear emblem
●When a metal object is brought near the rear emblem
●When a vehicle cover is installed or removed near the rear emblem
■Situations in which the touchless sensor may not operate properly (vehicles with a
touchless power back door)
If the touchless sensor does not operate in the following situations, use the back door
opener switch to open the power back door. (P. 145)
●In the following situations, the sensitivity of the touchless sensor may be temporarily
reduced and the touchless sensor may not operate:
• When a large amount of water is applied to the rear emblem, such as in heavy rain
• When the vehicle is being washed and water is applied to the rear emblem
• For several seconds after dirt is wiped off the rear emblem
• When the rear emblem is covered with mud, snow, ice, etc.
• When the vehicle has been parked for a wh ile near objects that may move and con-
tact the rear emblem, such as tall grass or trees
• When an external radio wave source is near the touchless sensor
●The touchless sensor may not operate in the following situations:
• When an electronic ke y is not being carried
• When an electronic key is not within the operational range
• When an external radio wave source in terferes with the communication between
the vehicle and electronic key ( P. 160)
• When the power back door is not fully closed
• When a hand is held pa rallel to the rear emblem
*
*
: The detection settings can be changed by your Lexus dealer. ( P. 739)
■Customization
Some functions can be customized. ( P. 108, 736)

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Operation of each component
RX450h_RX450hL_U
WARNING
■Operating the power back door
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in death or serious
injury.
●Remove any heavy loads, such as snow an d ice, from the power back door before
opening it. Failure to do so may cause the power back door to suddenly shut again
after it is opened.
●When opening or closing the power back d oor, thoroughly check to make sure the
surrounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close.
●Use caution when opening or closing the power back door in windy weather as it may
move abruptly in strong wind.
●Do not pull on the back door spindle ( P. 156) to close the power back door, and
do not hang on the back door spindle.
Doing so may cause hands to be caught or the back door spindle to break, causing
an accident.
●If a bicycle carrier or similar heavy object is attached to the power back door, it may
suddenly shut again after being opened, causing someone’s hands, arms, head or
neck to be caught and injured. When inst alling an accessory part to the power back
door, using a genuine Lexus part is recommended.
●The power back door may suddenly shut if it is
not opened fully, while on a steep incline.
Make sure that the power back door is secure
before using the luggage compartment.
●When closing the power back door, take
extra care to prevent your fingers, etc., from
being caught.
●When closing the power back door, make
sure to press it lightly on its outer surface. If
the back door handle is used to fully close the
power back door, it may result in hands or
arms being caught.

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WARNING
■Back door closer
●Use caution when using the back door closer as it still operates when the power back
door system is disabled.
■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 power
back door is about to open or close.
●If the power back door system is disabled ( P. 112) while the power back door is
operating, the power back door will stop operating. The power back door must then
be operated manually. Take extra care in th is situation, as the power back door may
open or close suddenly.
●If the operating conditions of the power back door ( P. 147) are no longer met, a
buzzer may sound and the power back door may stop opening or closing. The power
back door must then be operated manually. Ta ke extra care on an incline in this situa-
tion, as the power back door may move suddenly.
●On an incline, the power back door may su ddenly shut after it opens. Make sure the
power 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 power back door must then be
operated manually. Take extra care in this situation, as the stopped power back door
may suddenly open or close, causing an accident.
• When the power back door contacts an obstacle
• When the 12-volt battery voltage suddenly drops, such as when the power switch is turned to ON mode or the hybrid syst em is started during automatic operation
●In the event that the power back door is left
slightly open, the back door closer will auto-
matically close it to the fully closed position. It
takes several seconds before the back door
closer begins to operate. Be careful not to get
fingers caught or anything else in the power
back door, as this may cause bone fractures
or other serious injuries.

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Operation of each component
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WARNING
●If a bicycle carrier or similar heavy object is attached to the power back door, the
power back door may not operate, causin g a malfunction, or the power back door
may suddenly shut again after being opened, causing someone’s hands, arms, head
or neck to be caught and injured. When installing an accessory part to the power
back door, 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
power back door fully closes. Be careful not to get fingers caught 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.

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Operation of each component
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■Alarms and warning messages
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. ( P. 667)
When only an alarm sounds, circumstances and correction procedures are as follows.
■If a warning message is displayed indicating that there is a malfunction in the smart
access system with push-button start
 P. 667
■Battery-saving function
The battery-saving function w ill be activated in order to prevent the electronic key bat-
tery and the 12-volt battery from being discha rged 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.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 5
secondsAn attempt was made to lock
the vehicle while a door was
open.Close all of the doors and
lock the doors again.
Interior alarm pings
repeatedly
The power switch was turned to
ACCESSORY mode while the
driver’s door was open (The
driver’s door was opened when
the power switch was in
ACCESSORY mode).
Turn the power switch off
and close the driver’s door.

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Operation of each component
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■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 near the ground or in a high place, or too close to the rear
bumper center when the back door is opened.
• The electronic key is on th e instrument panel, luggage co mpartment, floor, or in the
door pockets or glove box when the hybrid system is started or power 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 outs ide the cabin and the door 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.
●Even if the electronic key is not inside the vehicle, it may be possible to start the hybrid
system if the electronic key is near the window.
●The doors may unlock if a large amount of wa ter splashes on the door handle, such as in
the rain or in a car wash when the electronic key is within the effective range. (The door
will automatically be locked after approx imately 60 seconds if the doors are not
opened and closed.)
●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.)
●Touching the door lock sensor while wearin g gloves may delay or prevent lock opera-
tion. Remove the gloves and touch the lock sensor again.
●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 that 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 the electronic key to battery-saving mode to disable the smart access system with push-button start. ( P. 160)
●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.
●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.
●If there is another electronic key in the de tection area, it may take slightly longer to
unlock the doors after the door handle is gripped.