wheel LEXUS RX450H 2019 User Guide

751-3. Hybrid system
1
For safety and security
RX450h_RX450hL_U
◆When stopped/during start off
The gasoline engine stops* when the vehicle is stopped. During start off, the
electric motor (traction mo tor) drives the vehicle. At slow speeds or when
traveling down a gentle slope, the engi ne is stopped* and the electric motor
(traction motor) is used.
When the shift lever is in N, the hybrid battery (traction battery) is not being
charged.
*: When the hybrid battery (traction battery) requires charging or the engine is warm- ing up, etc., the gasoline engine will not automatically stop. (P. 76)
◆During normal driving
The gasoline engine is predominantly used. The electric motor (traction
motor) charges the hybrid battery (traction battery) as necessary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the hybrid bat-
tery (traction battery) is added to that of the gasoline engine via the electric
motor (traction motor).
◆When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power generator,
and the hybrid battery (traction battery) is charged.
When the gasoline engine is off while driving, a sound is produced to warn
pedestrians, people riding bicycles or other people and vehicles in the surround-
ing area that the vehicle is approaching. The pitch of the sound varies according
to the vehicle speed. When the vehicl e speed becomes approximately 15 mph
(25 km/h) or more, the notification sound turns off.
Vehicle proximity notification system

811-3. Hybrid system
1
For safety and security
RX450h_RX450hL_U
WARNING
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious injury:
●Pull your vehicle off the road, shift the shift lever to P, apply the parking brake, and
turn the hybrid system off.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or ou tside your vehicle, an electric shock may
occur. Never touch exposed electric wires.
●If a fluid leak occurs, do not touch the flui d as it may be strong alkaline electrolyte
from the hybrid battery (traction battery). If it comes into contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric acid
solution. Seek immedi ate medical attention.
●If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never use a
fire extinguisher that is not meant for el ectric fires. Using even a small amount of
water may be dangerous.
●If your vehicle needs to be towed, do so wi th all four wheels raised. If the wheels con-
nected to the electric motor (traction motor) are on the ground when towing, the
motor may continue to generate elec tricity. This may cause a fire. (P. 654)
●Carefully inspect the ground under the vehicl e. If you find that liquid has leaked onto
the ground, the fuel system may have been damaged. Leave the vehicle as soon as
possible.
■Hybrid battery (traction battery)
●Never resell, hand over or modify the hybrid battery. To prevent accidents, hybrid
batteries that have been removed from a disposed vehicle are collected through
Lexus dealer. Do not dispose of the battery yourself.
Unless the battery is properly collected, th e following may occur, resulting in death
or serious injury:
• The hybrid battery may be illegally dispos ed of or dumped, and it is hazardous to
the environment or someone may touch a high voltage part, resulting in an electric
shock.
• The hybrid battery is intended to be used exclusively with your hybrid vehicle. If the hybrid battery is used outside of your vehicle or modified in any way, accidents
such as electric shock, heat generation , smoke generation, an explosion and elec-
trolyte leakage may occur.
When reselling or handing over your vehicle, the possibility of an accident is
extremely high because the person receiving the vehicle may not be aware of these
dangers.
●If your vehicle is disposed of without the hybrid battery having been removed, there is
a danger of serious electric shock if high voltage parts, cables and their connectors
are touched. In the event that your vehicle must be disposed of, the hybrid battery
must be disposed of by your Lexus dealer or a qualified service shop. If the hybrid bat-
tery is not disposed of properly, it may cause electric shock that can result in death or
serious injury.

1062. Instrument cluster
RX450h_RX450hL_U
*1:Resetting: P. 103
*2: Use the displayed fuel consumption as a reference.
*3: When only a small amount of fuel is added to the tank, the display may not be
updated.
When refueling, turn the power switch off. If the vehicle is refueled without turning the
power switch off, the display may not be updated.
*4: This distance is computed based on your average fuel consumption. As a result, the
actual distance that can be driven may differ from that displayed.
■Energy monitor
 P. 124
■Sway warning
Detects the sway of the vehicle within a lane, which is often associated with a
decrease in the driver’s at tention level, and displays the decrease in attention
using a bar display.
The shorter the bar length, the more the driver may need to rest.
This display is a part of the LKA (Lan e-Keeping Assist) system. The display is
enabled when the operating conditions of the vehicle sway warning are met.
(  P. 297)
■ AWD Control
Displays the driving force applie d to each wheel using segments.
The greater the number of segments di splayed, the greater the driving force
applied.

1082. Instrument cluster
RX450h_RX450hL_U
◆Changing settings
Use the meter control switches on th e steering wheel to change settings.
Press or to select .
Operate the switches to select a desired item.
Change the setting by referring to the message displayed on the screen.
◆Setting items
■ LKA (Lane-Keeping Assist) ( P. 297)
The following LKA system settings can be changed:
*1: If the lane centering function is enabled/ disabled, steering wheel assistance will also
be enabled/disabled accordingly.
*
2: If the steering wheel assistance is disabled, lane cent ering function will also be dis-
abled automatically.
Settings display ( )
1
2
3
ItemSettingsDetails
Lane center tracing On
Select to enable/disable the lane cen-
tering function.
*1Off
Steering assistOnSelect to enable/disable steering
wheel assistance.
*2Off
Alert
Select to set a vibrator or buzzer as
the notification method used to warn
the driver.
Alert sensitivityHighSelect to set the warning sensitivity.Normal
Sway warningOnSelect to enable/disable the vehicle
sway warning.
Off
Sway sensitivity
High
Select to set the vehicle sway warning
sensitivity.Medium
Low

131
3
Operation of
each component
RX450h_RX450hL_U
3-1. Key information
Keys .................................................. 132
3-2. Opening, closing and locking the doors
Side doors ...................................... 136
Power back door .........................142
Smart access system with push-button start ...................... 158
3-3. Adjusting the seats Front seats.......................................167
Rear seats....................................... 168
Driving position memory ...........181
Head restraints ............................ 186
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 189
Inside rear view mirror ............... 191
Outside rear view mirrors....... 193
3-5. Opening, closing the windows and moon roof
Power windows ........................... 196
Moon roof .....................................200
Panoramic moon roof .............. 204

167
3
Operation of each component
RX450h_RX450hL_U3-3. Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback angle adjustment switch
Lumbar support firmness adjust-
ment switch
Lumbar support height adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped)
■Power easy access system
The driver’s seat (on some models) and stee
ring wheel move in accordance with power
switch mode and the driver’s seat belt condition. ( P. 181)
Front seats
Adjustment procedure
1
2
3
4
5
6
7
WARNING
■When adjusting the seat position
●Take care when adjusting the seat position to ensure that other passengers are not
injured by the moving seat.
●Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the seat mechanism.
●Make sure to leave enough space around the feet so they do not get stuck.
■Seat adjustment
To reduce the risk of sliding under the lap be lt during a collision, do not recline the seat
more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply restraint forces
directly to the abdomen, or your neck may contact the shou lder belt, increasing the risk
of death or serious injury in the event of an accident.
Adjustments should not be made while drivin g as the seat may unexpectedly move and
cause the driver to lose control of the vehicle.

1813-3. Adjusting the seats
3
Operation of each component
RX450h_RX450hL_U
The seat and steering wheel are automatically adjusted to allow the driver to
enter and exit the vehicle easily.
When all of the following have been
performed, the seat and steering wheel
are automatically adjusted to a position
that allows driver to enter and exit the
vehicle easily. • The shift lever has been shifted to P.
• The power switch has been turned off.
• The driver’s seat belt has been unfastened.
When any of the following has been performed, the seat and steering wheel
automatically return to their original positions. • The power switch has been turned to ACCESSORY mode or ON mode.
• The driver’s seat belt has been fastened.
■Operation of the power easy access system
When exiting the vehicle, the power easy ac cess system may not operate if the seat is
already close to the rearmost position, etc.
■Customization
Some functions can be customized. ( P. 736)
Driving position memory
: If equipped
This feature automatically adjusts the driver’s seat (on some models), steering
wheel, outside rear view mirrors and head-up display (if equipped) to make
entering and exiting the vehicle easi er or to suit your preferences.
Power easy access system (driver’s side only)

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
1
2
3
4

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.
1
2
3

1843-3. Adjusting the seats
RX450h_RX450hL_U
Each electronic key can be registered to recall your preferred driving position.
■Registering procedure
Record your driving position to button “1”, “2” or “3” before performing the
following:
Carry only the key you want to regist er, and then close the driver’s door.
If 2 or more keys are in the vehicle, the driving position cannot be recorded
properly.
Check that the shift lever is in P.
Turn the power switch to ON mode.
Recall the driving position that you want to record.
While pressing the recalled but-
ton, press and hold the door lock
switch (either lock or unlock) until
the buzzer sounds.
If the button could not be registered,
the buzzer sounds continuously for
approximately 3 seconds.
■Recall procedureMake sure that the doors are locked before recalling the driving position.
Carry the electronic key that has been registered to the driving position,
and then unlock and open the driver’s door using the smart access system
with push-button start or wireless remote control.
The driving position will move to the recorded position (not including the steering
wheel and head-up display
*). However, the seat will move to a position slightly
behind the recorded position in order to make entering the vehicle easier.
If the driving position is in a position th at has already been recorded, the seat and
outside rear view mirrors will not move.
*: If equipped
Turn the power switch to ACCESSORY mode or ON mode, or fasten a
seat belt.
The seat, steering wheel and head-up display (if equipped) will move to the
recorded position.
Memory recall function (driver’s side only)
1
2
3
4
1
2