gas LEXUS RX450H 2019 User Guide

801-3. Hybrid system
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■If a warning light comes on, a warning message is displayed, or the 12-volt battery is dis-
connected
The hybrid system may not start. In this case, try to start the system again. If the “READY”
indicator does not come on, contact your Lexus dealer.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to make the low fuel level warning light ( P. 662)
go off. If there is only a small amount of fu el, the hybrid system may not be able to start.
(The standard amount of fuel is about 2.9 gal. [11.0 L, 2.4 Imp.gal.], when the vehicle is on
a level surface. This value may vary when the vehicle is on a slope. Add extra fuel when
the vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on hybrid ve hicles incorporate electromagnetic shield-
ing, and therefore emit approximately the same amount of electromagnetic waves as
conventional gasoline powered vehicles or home electronic appliances.
●Your vehicle may cause sound interference in some third party-produced radio parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a li mited service life. The lifespan of the hybrid
battery (traction battery) can change in acco rdance with driving style and driving condi-
tions.
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC sy stems as well as a 12-volt system. DC and
AC high voltage is very dangerous and can cause severe burns and electric shock that
may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables or their
connectors.
●The hybrid system will become hot after starting as the system uses high voltage. Be
careful of both the high voltage and the high temperature, and always obey the warn-
ing labels attached to the vehicle.
●Never try to open the service plug access
hole located under the rear seat. The service
plug is used only when the vehicle is serviced
and is subject to high voltage.

992. Instrument cluster
2
Instrument cluster
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■The meters and display illuminate when
The power switch is in ON mode.
■Hybrid System IndicatorCharge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline en gine power is not being used very often.
The gasoline engine will automatically stop and restart under various conditions.
Eco area
Shows that the vehicle is being dr iven in an Eco-friendly manner.
Power area
Shows that an Eco-friendly driving range is being exceeded (during full power driving
etc.)
●Depending on the selected driving mode, th e Hybrid System Indicator or tachometer
will be displayed. The Hybrid System Indica tor or tachometer can be set to always be
displayed on of the mult i-information display. (P. 108)
●The Hybrid System Indicator is disp layed in the following situations:
• When the tachometer setting is set to ch ange according to the driving mode and a
driving mode other than sport mode is selected
• When the tachometer setting is set to al ways display the Hybrid System Indicator
●By keeping the indicator needle (except F SPORT models) or bar display (F SPORT
models) within the Eco area, more Eco-friendly driving can be achieved.
●Charge area indicates “regeneration”* status. Regenerated energy will be used to
charge the hybrid battery (traction battery).
*: When used in this manual, re generation refers to the conversion of energy created by
the movement of the vehicle into electrical energy.
Except F SPORT modelsF SPORT models
1
2
3
4

1172. Instrument cluster
2
Instrument cluster
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■Tire pressure
●It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON mode. It may also take a few minutes to display the tire inflation pressure
after inflation pressure has been adjusted.
●“---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions.
●Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
Some functions can be customized. ( P. 108, 736)
WARNING
■Caution for use while driving
●When operating the multi-information display while driving, pay extra attention to the
safety of the area around the vehicle.
●Do not look continuously at the multi-info rmation display while driving as you may fail
to see pedestrians, objects on the road, etc. ahead of the vehicle.
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed.
For example, there is a lag between the dr iver’s shifting and the new gear number
appearing on the display. This lag could ca use the driver to downshift again, causing
rapid and excessive engine braking and possibly an accident resulting in death or
injury.
■Cautions during setting up the display
As the hybrid system needs to be operating during setting up the display, ensure that
the vehicle is parked in a place with adequa te ventilation. In a closed area such as a
garage, exhaust gases including harmful carbon monoxide (CO) may collect and enter
the vehicle. This may lead to dea th or a serious health hazard.
NOTICE
■While setting up the display
To prevent 12-volt battery discharge, ensure that the hybrid system is operating while
setting up the display features.

1222. Instrument cluster
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■Head-up display
The head-up display may seem dark or hard to see when viewed through sunglasses,
especially pola rized sunglasses.
Adjust the brightness of the head-up display or remove your sunglasses.
■When the 12-volt battery is disconnected
The customize settings of the head-up display will be reset.
■Display brightness
The brightness of the head-up display can be adjusted on of the multi-information
display. Also, it is automatically adju sted according to the ambient brightness.
■Enabling/disabling of the head-up display
If the head-up display is disabled, it will remain disabled when the power switch is turned
off then back to ON mode.
■Automatic adjustment of the head-up display position
A desired head-up display position can be entered to memory and recalled automati-
cally by the driving position memory system. ( P. 181)
■Street name display (vehicle s with a navigation system)
Only street names which are included in the map data will be displayed.
WARNING
■Before using the head-up display
●Check that the position and brightness of the head-up display image does not inter-
fere with safe driving. Inco rrect adjustment of the image’s position or brightness may
obstruct the driver’s view and lead to an acc ident, resulting in death or serious injury.
●Do not continuously look at the head-up di splay while driving as you may fail to see
pedestrians, objects on the road, etc. ahead of the vehicle.
■Caution for changing settings of the head-up display
As the hybrid system needs to be operating while changing the settings of the head-up
display, ensure that the vehicle is parked in a place with adequate ventilation. In a
closed area such as a garage, exhaust gases including harmful carbon monoxide (CO)
may collect and enter the vehicle. This may lead to death or a serious health hazard.

1252. Instrument cluster
2
Instrument cluster
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Lexus Display Audio screen
Press the “MENU” button on the Lexus
Display Audio controller, then select
“Info” on the “Menu” screen, and then
select “Fuel Consumption”.
If the “Energy Monitor” screen does not
appear, move the controller to the right
and select “Energy”.
Navigation system screen
Press the “MENU” button on the
Remote Touch, then select on the
“Menu” screen, and then select “Fuel
Consumption”.
If the “Trip Information” or “Past Record”
screen is displayed, select “Energy”.
Multi-information display
Press the “ ” or “” of the meter control switches and select , and then press
the “ ” or “ ” to select the energy monitor display.
Energy monitor
Audio system screenMulti-information display
When the vehicle is
powered by the elec-
tric motor (traction
motor)
When the vehicle is
powered by both the
gasoline engine and
the electric motor
(traction motor)

1262. Instrument cluster
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These images are examples only, and may vary slightly from actual conditions.
When the vehicle is
powered by the gaso-
line engine
When the vehicle is
charging the hybrid
battery (traction bat-
tery)
When there is no
energy flow
Hybrid battery (trac-
tion battery) status
LowFullLowFull
Audio system screenMulti-information display

1523-2. Opening, closing and locking the doors
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WARNING
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in death or serious
injury.
■Before driving the vehicle
Before driving the vehicle, ma ke sure that the power back door is fully closed. If the
power back door is not fully closed, it may open unexpectedly while driving, causing an
accident.
■Caution while driving
●Keep the power back door closed while driving.
If the power back door is left open, it may hit nearby objects while driving or luggage
may be unexpectedly thrown out, causing an accident.
In addition, exhaust gases may enter the ve hicle, causing death or a serious health
hazard. Make sure to close the po wer back door before driving.
●Never let anyone sit in the luggage compartment.
In the event of sudden braking, sudden swerving or a collision, they are susceptible to
death or serious injury.
■When children are in the vehicle
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not allow children to play in the luggage compartment.
If a child is accidentally locked in the luggage compartment, they could have heat
exhaustion or other injuries.
●Do not allow a child to open or close the power back door.
Doing so may cause the power back door to move unexpectedly, or cause the child’s
hands, arms, head, or neck to be caught by the closing power back door. (The power
back door will not operate when it is disabled: P. 112)

1603-2. Opening, closing and locking the doors
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■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.

2144-1. Before driving
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■Breaking in your new Lexus
To extend the life of the vehicle, observin g the following precautions is recommended:
●For the first 200 miles (300 km):
Avoid sudden stops.
●For the first 500 miles (800 km):
Do not tow a trailer.
●For the first 1000 miles (1600 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the cor-
rect fuel. ( P. 712)
■Eco-friendly driving
 P. 121
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY” indicator is
illuminated. This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to difficulty in operat-
ing the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving po sture even when moving the vehicle only
slightly. This allows you to depress th e brake and accelerator pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay re sponse in an emergency, resulting in an accident.
●The driver should pay extra attention to pedestrians when the vehicle is powered only
by the electric motor (traction motor). As there is no engine noise, the pedestrians
may misjudge the vehicle’s movement.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.

2174-1. Before driving
4
Driving
RX450h_RX450hL_U
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indicators)
Have the brake pads checked and replaced by your Lexus dealer as soon as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/or those
of the brake discs are exceeded.
■When the vehicle is stopped
●Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accelerate sud-
denly and unexpectedly, causing an accident.
●In order to prevent accidents due to the ve hicle rolling away, always keep depressing
the brake pedal while stopped with the “REA DY” indicator is illuminated, and apply
the parking brake as necessary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by the
vehicle rolling forward or backward, alwa ys depress the brake pedal and securely
apply the parking brake as needed.
●Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause the exhaust
system to overheat, which could result in a fire if combustible material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, sp ray cans, or soft drink cans in the vehicle
when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cau se the plastic lenses and plastic mate-
rial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the vehicle, and may also cause a short circui t in the vehicle’s electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as
the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windsh ield or windows. Do not place containers
such as air fresheners on th e instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, ca using a fire in the vehicle.
●Do not leave a door or window open if th e curved glass is coated with a metallized
film such as a silver-colored one. Reflecte d sunlight may cause the glass to act as a
lens, causing a fire.
●Always apply the parking brake, shift the shif t lever to P, stop the hybrid system and
lock the vehicle.
Do not leave the vehicle unattended whil e the “READY” indicator is illuminated.
If the vehicle is parked with the shift leve r in P but the parking brake is not set, the
vehicle may start to move, possibly leading to an accident.
●Do not touch the exhaust pipes while the “R EADY” indicator is illuminated or imme-
diately after turning the hybrid system off.
Doing so may cause burns.