2019 LEXUS RX450H stop

1583-2. Opening, closing and locking the doors
RX450h_RX450hL_U
●Locks and unlocks the doors ( P. 136)
●Locks and unlocks the back door ( P. 142)
●Starts and stops the hybrid system ( P. 239)
■Antenna location
■Effective range (areas within which the electronic key is detected)
Smart access system with push-button start
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 compartment
When locking or unlocking the doorsThe system can be operated when the elec-
tronic key is within about 2.3 ft. (0.7 m) of
an outside door handle. (Only the doors
detecting the key can be operated.)
When starting the hybrid system or chang- ing power switch modes
The system can be operated when the elec-
tronic key is in side the vehicle.1
2
3

1603-2. Opening, closing and locking the doors
RX450h_RX450hL_U
■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.
■Conditions affecting operation
The smart access system with push-button st art, wireless remote control and immobilizer
system use weak radio waves. In the following situations, the communication between the
electronic key and the vehicle may be affect ed, preventing the smart access system with
push-button start, wireless remote control an d immobilizer system from operating prop-
erly. (Ways of coping: P. 692)
●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
• 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
●When carrying the electronic key together with the following devices that emit radio
waves
• Portable radio, cellular phone, cordle ss phone or other wireless communication
devices
• Another vehicle’s electronic key, another electronic key of your vehicle, 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
●When the vehicle is parked in a pay parking spot where radio waves are emitted
Press twice while pressing and holding .
Confirm that the electronic key indicator 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.

1623-2. Opening, closing and locking the doors
RX450h_RX450hL_U
●Fingernails may scrape against the door duri ng operation of the door handle. Be care-
ful not to injure fingernails or damage the surface of the door.
*: This setting can be customiz ed at your Lexus dealer.
■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 with push-button start can be deactivated in advance.
(  P. 736)
●Setting the electronic key to battery-saving mode helps to reduce key battery deple-
tion. ( P. 160)
■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 prevention 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. 692)
●Starting the hybrid system: P. 693
■Customization
Some functions can be customized. ( P. 736)
■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. 136, 142, 692)
●Starting the hybrid system and changing power switch modes: P. 693
●Stopping the hybrid system: P. 240

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.
1
2

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.
1
Using the seatback angle adjust-
ment switchUsing the switch in the luggage
compartment
2

1753-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
■Before folding the third-row seat seatbacksTo prevent the seat belt from
being damaged, hook it to the
seat belt hanger.
Lower the third-row seat head rest raints to the lowest position. (P. 186)
■Folding the third-row seat seatbacks
Press and hold the side of the
switch until the seatback is folded
completely.
A buzzer will sound twice before the
operation begins and twice when the
operation is complete.
If the switch is released while the
seatback is operating, the seatback
will stop and a buzzer will sound con-
tinuously.
■Returning the third-row seat seatbacks
Press and hold the side of the
switch until the seatback is fully
upright.
A buzzer will sound twice before the
operation begins and twice when the
operation is complete.
If the switch is released while the
seatback is operating, the seatback
will stop and a buzzer will sound con-
tinuously.
Folding the third-row se at seatbacks (RX450hL)
1
2

1773-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
■The rear seatbacks can be raised when (power second-row seat)
When all of the following conditions are met, a rear seat operation switch can be used to
return the rear seatback:
●The other seat operation switch for the se at to be operated is not being pressed.
■Fully reclining the rear seatback (power second-row seat)
■The third-row seats can be folded when (RX450hL)
●The vehicle is stopped.
●The back door is open. (When using the switches in the luggage compartment)
●A seat side switch and switch in the luggage compartment are not being operated
simultaneously.
●When using the rear seat operation switch
(rear seat): The rear seatback is in a position
within the range A shown in the illustration
with the back door open
●When using the rear seat operation switch
(rear seat): The rear door nearest to the seat to
be operated is open
Operate the rear seat operation switch (rear
seat) to recline the rear seatback and stop it
partway. To set the rear seatback to the rear-
most position, press the button again.
Most
upright
position

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.
1
2
3
4
5