2019 LEXUS RX450H change

3924-6. Driving tips
RX450h_RX450hL_U
To enable the windshield wi pers to be lifted when heavy snow or icy conditions
are expected, change the rest position of the windshield wipers from the
retracted position below the hood to th e service position using the wiper lever.
(
P. 270)
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the front tires only. Do not install tire chains on the rear tires.
●Install tire chains on front tires as tightly as possible. Retighten chains after driving
1/4 - 1/2 mile (0.5 - 1.0 km).
●Install tire chains following the instru ctions provided with the tire chains.
Windshield wipers
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehi cle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or
30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained.
●Do not use the LKA (Lane-Keeping Assist) system.

3954-6. Driving tips
4
Driving
RX450h_RX450hL_U
Your vehicle is not designed to be driven off-road. However, in the event that
off-road driving cannot be avoided, please observe the following precautions to
help avoid the areas prohibited to vehicles.
●Drive your vehicle only in areas wher e off-road vehicles are permitted to
travel.
●Respect private property. Get owner’s permission before entering private
property.
●Do not enter areas that are closed. Honor gates, barriers and signs that
restrict travel.
●Stay on established road s. When conditions are wet, driving techniques
should be changed or travel dela yed to prevent damage to roads.
●Avoid driving on very steep, slippery ro ads and other surfaces, such as sand,
where the tires are liable to lose tractio n. Your vehicle may not perform as well
as conventional AWD on-road vehicles on these surfaces.
■Additional information for off-road driving
For owners in U.S. mainland, Hawaii and Puerto Rico:
To obtain additional information pertaining to driving your vehicle off-road, consult the
following organizations.
●State and Local Parks and Recreation Departments
●State Motor Vehicle Bureau
●Recreational Vehicle Clubs
●U.S. Forest Service and Bu reau of Land Management
Off-road driving

4045-1. Basic Operations
RX450h_RX450hL_U
■Input mode
Letters and numbers are inputted via the screen. Turn the controller to select the
desired character and press the
controller to input the character.
When this indicator is shown, you
can change input fields by moving
the controller forward.
When this indicator is shown, you
can change character types by
moving the controller to the right
and then selecting the desired
character type.
Select to erase characters one by one. Select and hold to erase all charac-
ters.
Select to complete data input.
■Input field mode
When in the input field you can move the cursor to the desired position.
Turn the controller to move the
cursor left or right.
When this indicator is shown, you
can move the cursor to the right
input field by moving the control-
ler to the right.
When this indicator is shown, you
can move the cursor to the left
input field by moving the control-
ler to the left.
When this indicator is shown, you can change to input mode by moving the
controller backward.
Inputting letters and numbers
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4055-1. Basic Operations
5
Lexus Display Audio system
RX450h_RX450hL_U
■When using the screen
●Under extremely cold conditions, the Lexus Display Audio controller may react slowly.
●If the screen is cold, the display may be dark, or the system may seem to be operating
slightly slower than normal.
●The screen may seem dark and hard to see when viewed through sunglasses. Change
your angle of viewing, adjust the display on the “Display” screen (P. 417) or remove
your sunglasses.
■Using cellular phones
Interference may be heard through the audi o system’s speakers if a cellular phone is
being used inside or close to the vehicle while the audio system is operating.
WARNING
■Using the Lexus Display Audio controller
Be careful when touching the Lexus Display Audio controller in extreme temperatures
as it may become very hot or cold due to the temperature inside the vehicle.
■Laser product
●CAUTION
USE OF CONTROL OR ADJUSTMENT OR PERFORMANCE OF PROCE-
DURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARD-
OUS RADIATION EXPOSURE.
●CAUTION
THE USE OF OPTICAL INSTRUMENTS WITH THIS PRODUCT WILL
INCREASE EYE HAZARD.
NOTICE
■To prevent Lexus Display Au dio controller malfunction
●Do not allow the Lexus Display Audio controll er to come into contact with food, liq-
uid, stickers or lit cigarettes as doing so may cause it to change color, emit a strange
odor or stop functioning.
●Do not subject the Lexus Display Audio controller to excessive pressure or strong
impact as the controller may bend or break off.
■To prevent battery discharge
Do not leave the audio system on longer than necessary when the engine is off.
■To avoid damaging the audio system
Take care not to spill drinks or other fluids on the audio system.

412
RX450h_RX450hL_U5-2. Setup
Go to “Setup”: “MENU” button
“Setup”
Change the settings for operation
sounds, screen animation, etc.
( P. 413)
Change the settings for voice guid-
ance. ( P. 416)
Change the settings for registering,
removing, connecting and discon-
necting Bluetooth
® devices.
( P. 451, 452, 453, 454)
Change the settings for FM radio,
iPod, etc. ( P. 420)
Change the settings for vehicle cus-
tomization. ( P. 736)
Change the settings for phone
sound, phonebook, etc. ( P. 472)
Set the pop up reminder for mobile
data usage notification.
Setup menu
The Lexus Display Audio system can be adjusted to the desired settings.
Display “Setup” screen
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4135-2. Setup
5
Lexus Display Audio system
RX450h_RX450hL_U
Go to “General Settings”: “MENU” button “Setup” “General”
General settings
Settings are available for adjusting th e operation sounds, screen animation,
etc.
Screen for general settings
ButtonFunction
“Language”Change language. The select able languages may differ
depending on the model or region.
“Units of Measurement”Change the distance unit.
“Beep”Set the beep sound on/off.
“Button Color”Change the button color.
“Customize Images”Change the startup image and screen off image.
(  P. 414)
“Animation”Set the animation effect on/off.
“Delete Personal Data”Delete personal data ( P. 415)
“Software Update”Update program versions. For details, contact your Lexus
dealer.
“Gracenote® Database
Update”Update gracenote database versions. For details, contact
your Lexus dealer
“Software Information”Display the open source license.
“Auto Detect iPhone
App”Select to set a pop-up message displayed on an iPhone
connected via Bluetooth® on/off when an application on
the iPhone needs to be activated.

4155-2. Setup
5
Lexus Display Audio system
RX450h_RX450hL_U
Go to “Delete Personal Data”: “MENU” button  “Setup”  “General” 
“Delete Personal Data”
Select “Delete”.
Check carefully beforeha nd, as data cannot be retrieved once deleted.
The following personal data will be dele ted or changed to its default settings.
• Phonebook data
• Call history data
•Favorite data
•Bluetooth
® devices data
• Phone sound settings
• Detailed Bluetooth
® settings
• Audio/video setting
• Customized image data
•FM info setting
• iPod tagging information
• Software update history
• Software update detail information
• Phone display setting
• Contact/call history setting
• Messaging setting
• Traffic information map
• Weather information
• Phonebook data for voice recognition
• Music data for voice recognition
NOTICE
■To prevent damage to the USB me mory device or its terminals
 P. 447
Deleting personal data
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4175-2. Setup
5
Lexus Display Audio system
RX450h_RX450hL_U
Go to “Display”: “MENU” button  “Display”
Turn off screen.
Adjust screen quality.
Adjust screen quality of the rear
view monitor camera.
Change to day mode.
This setting turns the screen off. To tu rn it on, press any button such as the
“AUDIO” button or “MENU” button.
If a screen off image has been se t, the set image will be displayed.
When the headlights are turned on, the screen dims.
However, the screen can be switched to day mode by selecting “Day Mode”.
The screen will stay in day mode when the headlights are turned on until “Day Mode”
is selected again.
Select “General” or “Camera” on the “D isplay” screen or select “Display” on
audio menu screen. ( P. 423)
Adjust the display as desired by turning the controller clockwise (+) or coun-
terclockwise (-).
To select “Contrast”, “Brightness”, “Color” or “Tone”, move the controller to the left.
(“Color” and “Tone” are available when “Display” on the audio settings screen for
each audio source is selected.)
■Changing the sample image (when “General” is selected)
Move the controller to the right and select the desired sample image.
Display settings
Settings are available for adjusting the contrast and brightness of the screen.
The display can also be turned off.
Screen for display settings
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Screen off
Day mode
Adjusting the screen quality
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