check LEXUS RX450H 2019 Owner's Manual

1543-2. Opening, closing and locking the doors
RX450h_RX450hL_U
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.

1563-2. Opening, closing and locking the doors
RX450h_RX450hL_U
NOTICE
■Back door spindles
The power back door is equipped with spindles that hold the power back door in place.
Observe the following precautions.
Failure to do so may cause damage to the back door spindle, resulting in malfunction.
■To prevent back door closer malfunction
●Do not apply excessive force to the power back door while the back door closer is
operating. Applying excessive force may ca use the back door closer to malfunction.
●If the power back door is opened and closed repeatedly in a short amount of time, the
back door closer may stop operating. In this case, manually open the power back
door once and wait for a while bef ore attempting to close it again.
■To prevent malfunction of the power back door
●Make sure that there is no ice between the power back door and frame that would
prevent movement of the power back door. Operating the power back door when
excessive load is present on the power back door may cause a malfunction.
●Do not apply excessive force to the power back door while the power back door is
operating.
●Take care not to damage the sensors installed on the right and left edges of the power
back door (P. 150) with a knife or other sharp object. If a sensor is disconnected,
the power back door will not close automatically.
■Close & lock function
When closing the power back door using th e close & lock function, a different buzzer
than the normal one will sound before the operation begins.
To check that the operation has started corre ctly, check that a different buzzer than the
normal one has sounded.
Additionally, when the power back door is fully closed and locked, operation signals
will indicate that all of the doors have been locked.
Before leaving the vehicle, ma ke sure that the operational signals have operated and
that all of the doors are locked.
●Do not attach any foreign objects, such as
stickers, plastic sheets , or adhesives to the
spindle rod.
●Do not attach any accessories other than
genuine Lexus parts to the power back door.
●Do not place your hand on the spindle or
apply lateral forces to it.Spindles

1573-2. Opening, closing and locking the doors
3
Operation of each component
RX450h_RX450hL_U
NOTICE
■Touchless sensor precautions (vehicles with a touchless power back door)
The touchless sensor is located behind the rear emblem. Observe the following to
ensure that the touchless power back door function operates properly:
●Operate the touchless sensor while carrying an electronic key within the operational
range.
●Keep the rear emblem clean at all times.
If the rear emblem is dirty or covered wi th snow, the touchless sensor may not oper-
ate. In this situation, clean off the dirt or snow, move the vehicle from the current posi-
tion and then check if the touchless sensor operates. If it does not operate, have the
vehicle inspected by your Lexus dealer.
●Do not apply coatings that have a rain clearing (hydrophilic) effect, or other coatings,
to the rear emblem.
●Do not park the vehicle near objects that may move and contact the rear emblem,
such as tall grass or trees.
If the vehicle has been parked for a while near objects that may move and contact the
rear emblem, such as tall grass or trees, th e touchless sensor may not operate. In this
situation, move the vehicle from the current position and then check if the touchless
sensor operates. If it does not operate, have the vehicle inspected by your Lexus
dealer.
●Do not subject the touchless sensor or it s surrounding area to a strong impact.
If the touchless sensor or its surrounding ar ea has been subjected to a strong impact,
the touchless sensor ma y not operate properly.
If the touchless sensor does not operate in the following situations, have the vehicle
inspected by your Lexus dealer.
• The touchless sensor or its surroundin g area has been subjected to a strong
impact.
• The rear emblem is scratched or damaged.
●Do not disassemble the rear emblem.
●Do not attach stickers to the rear emblem.
●Do not paint the rear emblem.
●If a bicycle carrier or similar heavy object is attached to the power back door, disable
the touchless sensor. ( P. 112)
■To prevent unintentional operation (vehicles with a touchless power back door)
When the touchless sensor is not to be us ed, disable the touchless sensor operation
using the multi-information display ( P. 112)
■If the vehicle has not been driven for a long time (vehicles with a touchless power
back door)
If the vehicle has not been driven for a long time, the touchless power back door may
not operate. In this case, turn the power switch to ON mode and then operate the
touchless power back door.
It the touchless power back door still does not operate, have the vehicle inspected by
your Lexus dealer.

1613-2. Opening, closing and locking the doors
3
Operation of each component
RX450h_RX450hL_U
■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.

1713-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
■Folding the rear seatbacks (power seat)
Press and hold the fold switch until the rear seatback begins to operate.
A buzzer will sound and then the operation will start. When the operation is com-
pleted, the buzzer will sound again.
To stop the operation partway, press either side of the switch for the operating seat.
Any rear seat operation switch for the op erating seat, regardless of location, can
be used to stop the operation. (A buzzer may sound depending on the position
that the rear seatback is stopped.)
■Returning the rear seatbacks (manual seat)
Lift the rear seatback until it locks
in position.
Check that the plate of the seat
belt is on the front side of the seat-
back.
Using the seatback angle adjust-
ment switchUsing the switch in the luggage
compartment
When using the seatback angle adjustme nt switch: If the rear seatback is
reclined, adjust it to the most upright position and then press the switch again.
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1723-3. Adjusting the seats
RX450h_RX450hL_U
■Returning the rear seatbacks (power seat) Press and hold the return switch until the rear seatback begins to operate.
A buzzer will sound and then the operation will start. When the operation is com-
pleted, the buzzer will sound twice again.
To stop the operation partway, press either side of the switch for the operating seat.
Any rear seat operation switch for the op erating seat, regardless of location, can
be used to stop the operation. (A buzzer may sound depending on the position
that the rear seatback is stopped.)
Check that the plate of the seat
belt is on the front side of the seat-
back.
■Folding the rear center seatback only
Pull the lock release lever on the
back side of the seatback and fold
the center seatback.
To return the rear center seatback to
its original position, li ft it until it locks
in position.
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Using the seatback angle adjust-
ment switchUsing the switch in the luggage
compartment
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1783-3. Adjusting the seats
RX450h_RX450hL_U
■Precautions for power seats (if equipped)
If a seat cover or seat cushion is used on a power seat, the power seat may not operate
properly.
Before folding the seatback of a power seat, make sure that the seat and area around the
seat is free of obstructions which may interfere the operation.
■Rear seatback jam protection function (power seat)
When folding or returning the seatback of a power seat, if an object is detected between
the seatback and seat cushion or behind the seatback, the seatback may stop or move in
the opposite direction slightly.
A buzzer will sound continuously when the se atback stops and intermittently when mov-
ing in the opposite direction.
■If a buzzer sounds continuous ly after a third-row seat seatback is completely folded
(RX450hL)
The power seat system may be malfunctioning or it may need to be initialized. To initialize
the system, perform the following procedure. (It is necessary to perform this procedure
with two people.)
Check that the seat is free of obstructions.
Press and hold the side switch of the luggage compartment side switch for the
seat which the buzzer is sounding.
Within 10 seconds of the performing th e above step, press the side switch of
the seat side switch 5 times.
When a buzzer sounds 3 times, release the luggage compartment side switch.
Press the side switch of the seat side switch until the seatback is folded com-
pletely.
A buzzer will sound twice when the operation is complete.
If the buzzer does not stop sounding even though the above procedure has been per-
formed, have the vehicle inspected by your Lexus dealer.
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1793-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
WARNING
■When a rear seatback is folded
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not fold down the rear seatbacks while driving.
●Stop the vehicle on level grou nd, apply the parking brake and shift the shift lever to P.
●Do not allow anyone to sit on a folded rear seatback or in th e luggage compartment
while driving.
●Do not allow children to enter the luggage compartment.
■When operating the rear seatback
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Make sure that passengers are clear of the rear seatback before operating it.
●To prevent hands and other body parts from being caught, keep them away from the
gaps in the seats and the moving parts of the seats when operating a rear seatback.
●Power seat: Do not let children operate th e rear seatback. Other passengers may get
caught in the seat.
●Power seat: Make sure that a ll passengers are clear of a seat before folding it. Do not
let passengers sit in the seat while it is being folded.
■Seat adjustment
●Second-row seats: To reduce the risk of sliding under the lap belt during a collision,
do not recline the seat more than necessary.
If the seat is reclined excessively, the la p belt may slide past the hips and apply
restraint forces directly to the abdomen, or your neck may contact the shoulder belt,
increasing the risk of de ath or serious injury in the event of an accident.
●Adjustments should not be made while dr iving as the seat may unexpectedly move
and cause the driver to lose control of the vehicle.
■After adjusting the rear seats
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Manual seats: Make sure that the rear se atback is securely locked in position by
lightly pushing it back and forth.
●Check that the seat belts are not twisted or caught between or behind in the rear
seatback.

1823-3. Adjusting the seats
RX450h_RX450hL_U
Your preferred driving position (the positi on of the driver’s seat, steering wheel,
outside rear view mirrors and head-up display
*) can be recorded and recalled
by pressing a button.
Three different driving positions can be recorded into memory.
*: If equipped
■Recording procedure
Check that the shift lever is in P.
Turn the power switch to ON mode.
Adjust the driver’s seat, steering wh eel, outside rear view mirrors and
head-up display (if equipped) to the desired positions.
While pressing the “SET” button,
or within 3 seconds after the
“SET” button is pressed, press
button “1”, “2” or “3” until the
buzzer sounds.
If the selected button has already
been preset, the previously recorded
position will be overwritten.
Driving position memory
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1833-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
■Recall procedureCheck that the shift lever is in P.
Turn the power switch to ON mode.
Press one of the buttons for the
driving position you want to recall
until the buzzer sounds.
■To stop the position recall operation part-way through
Perform any of the following:
●Press the “SET” button.
●Press button “1”, “2” or “3”.
●Operate any of the seat adjustment switches (only cancels seat position recall).
●Operate the tilt and telescopic steering control switch (only cancels steering wheel
position recall).
■Seat positions that can be memorized ( P. 167)
The adjusted positions other than the position adjusted by lumbar support switch can be
recorded.
■Operating the driving position memory after turning the power switch off
Recorded seat positions can be activated up to 180 seconds after the driver’s door is
opened and another 60 seconds after it is closed again.
■In order to correctly use the driving position memory function
If a seat position is already in the furthest po ssible position and the seat is operated in the
same direction, the recorded position may be slightly different when it is recalled.
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