Page 408 of 792

4085-1. Basic Operations
RX450h_RX450hL_U
■Adjusting the volume
The volume of the Mobile Assist ant can be adjusted using the
“PWR·VOL” knob or
steering wheel volume switch es. The Mobile Assistant and phone call volumes are syn-
chronized.
■Microphone
It is not necessary to speak directly into the microphone when using the Mobile Assis-
tant.
●Wait for the listening beeps before using the Mobile Assistant.
●The Mobile Assistant may not recognize commands in the following situations:
• When spoken too quickly.
• When spoken at a low or high volume.
• When the roof or windows are open.
• When passengers are talking while th e Mobile Assistant is being used.
• When the air conditioning syst em’s fan speed is set high.
• When the air conditioning vents are turned toward the microphone.
■Mobile Assistant precautions
●The available features and functions may vary based on the iOS version installed on the
connected device.
●Some Siri features are limited in Eyes Free mode. If you attempt to use an unavailable
function, Siri will inform you that the function is not available.
●If Siri is not enabled on the ce llular phone connected via Bluetooth, an error message
will be displayed on the screen.
●While a phone call is active, the Mobile Assistant cannot be used.
●If using the navigation feature of the cellular phone, ensure the active audio source is
Bluetooth audio or iPod in order to hear turn by turn direction prompts.
Page 409 of 792
4095-1. Basic Operations
5
Lexus Display Audio system
RX450h_RX450hL_U
Press the knob.
Open the cover.
■iPod
Open the cover and connect an iPod using an iPod cable.
Turn on the power of the iPod if it is not turned on.
■USB memory
Open the cover and connect the USB memory device.
Turn on the power, if applicable, of the US B memory device if it is not turned on.
■Portable audio player
Open the cover and connect the portable audio player.
Turn on the power of the portable audio player if it is not turned on.
USB/AUX ports
Connect an iPod, USB memory device or portable audio player to the USB/
AUX port as indicated below. Select “iPod”, “USB”, “AUX” or “External” on
the audio source selection screen and the device can be operated via Lexus
Display Audio system.
Connecting using the USB/AUX port
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Page 416 of 792
4165-2. Setup
RX450h_RX450hL_U
Go to “Voice Settings”: “MENU” button “Setup” “Voice”
Adjust the voice guidance volume
setting.
Set the voice recognition prompts
on/off.
Select to train voice recognition.
The voice command system adapt the
user accent.
■Return to the default settings
Move the controller to the left and select “Default”.
Voice settings
You can adjust the guidance volume setting.
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Page 417 of 792

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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4
Screen off
Day mode
Adjusting the screen quality
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Page 418 of 792
418
RX450h_RX450hL_U5-3. Using the audio system
Press the “AUDIO” button to
display the “Source” screen.
If the “Source” screen is not displayed, press the button again.
Select the desired audio source.
The audio source can be selected by pressing the “RADIO” or “MEDIA” button.
Press the “MODE” switch when the audio system is turned on. The audio source
changes each time the “MODE” switch is pressed.
■Rearranging the list
The listing order of the sour ce list can be rearranged.
Move the controller to the left while on the “Source” screen.
Select “Audio Source Select”.
Select an item you wish to move and th en select where to move the item to.
Selecting the audio source
Switching between audio sources, such as the radio and CD, is explained in
this section.
Changing audio source
Using the steering wheel switches to change audio sources
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Page 426 of 792

426
RX450h_RX450hL_U5-4. Using the radio
Pressing the “RADIO” button displays the radio top screen from any screen of
the selected source.
■Menu screen
P. 423
Tune in to the desired station using one of the following methods.
■Seek tuning
Press and hold then release the “ PRST” or “TRACK ” button.
Seek tuning can also be operated on the menu screen. ( P. 423)
The radio will begin seeking up or down for a station of the nearest frequency
and will stop when a station is found.
■Manual tuning
Turn the “TUNE•SCROLL” knob.
■Preset stations
Select the desired preset station by pressing the “ PRST” or “TRACK ” but-
ton, or turning and pressing the controller.
■Station list
Move the controller to the right and selecting “Station List”.
AM radio: Selectin g a desired station.
FM radio: Selecting a desired type of station and selecting a desired st\
a-
tion.
To refreshing the station list, select “Refresh”. Select “Source” on the refresh
screen, can be change to the othe r audio source while refreshing.
Radio operation
Select “AM”, “FM” or “SAT” on the audi o source selection screen to begin lis-
tening to the radio.
Radio top screen
Selecting a station (AM or FM radio)
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Page 427 of 792

4275-4. Using the radio
5
Lexus Display Audio system
RX450h_RX450hL_U
When “HD Radio” is set to “On”, available stations with HD Radio channels are
marked with “HD)”.In AM or FM mode, select a station marked with “HD)”.
Turn the “TUNE•SCROLL” knob to select an HD Radio channel.
HD Radio channels can also be selected by selecting “Mul ticast” on the menu screen.
( P. 423)
Select in to the desired channel using one of the following methods.
■Turning up/down the channel
Press and hold the “ PRST” or “TRACK ” button or turn the
“TUNE•SCROLL” knob.
■Preset channels
Select the desired preset channel by pressing the “ PRST” or “TRACK ”
button or controller.
■Channel list
Move the controller to the right and selecting “Select a SAT Category”.
Selecting a desired category of cha nnel and selecting a desired channel.
Search for desired stations or channel.
Select and hold one of the pr eset until you hear a beep.
■Display the song information
Move the controller to the right and selecting “Text”.
■Display the Additional information (HD radio)
Move the controller to the right and selecting “Additional Information”.
Selecting an HD Radio channel
Selecting a channel (XM Satellite Radio)
Setting presets
Display the text message
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Page 429 of 792

4295-4. Using the radio
5
Lexus Display Audio system
RX450h_RX450hL_U
■HD Radio™ Technology troubleshooting guide
■Reception sensitivity
●Maintaining perfect radio reception at all times is difficult due to the continually chang-
ing position of the antenna, differences in si gnal strength and surrounding objects, such
as trains, transmitters, etc.
●The radio antenna is mounted inside the rear window. To maintain clear radio reception,
do not attach metallic window tinting or other metallic objects to the antenna wire
mounted inside the rear window.
ExperienceCauseAction
Mismatch of time align-
ment- a user may hear a
short period of program-
ming replayed or an echo,
stutter or skip.The radio stations analog
and digital volume are not
properly aligned or the sta-
tion is in ballgame mode.None, radio broadcast
issue. A user can contact
the radio station.
Sound fades, blending in
and out.Radio is shifting between
analog and digital audio.
Reception issue, may
clear-up as the vehicle
continues to be driven. Set
“HD Radio” to off, can
force radio in an analog
audio.
Audio mute condition
when an HD2/HD3 multi-
cast channel had been
playing.The radio does not have
access to digital signals at
the moment.
This is normal behavior,
wait until the digital signal
returns. If out of the cover-
age area, seek a new sta-
tion.
Audio mute delay when
selecting an HD2/HD3
multicast channel preset.
The digital multicast con-
tent is not available until
HD Radio™ broadcast can
be decoded and make the
audio available. This takes
up to 7 seconds.
This is normal behavior,
wait for the audio to
become available.
Text information does not
match the present song
audio.Data service issue at the
radio broadcaster.
Broadcaster should be
notified. Complete the
form: www.ibiquity.com/
automotive/
report_radio_station_
experiences.
No text information shown
for the present selected
frequency.Data service issue by the
radio broadcaster.
Broadcaster should be
notified. Complete the
form: www.ibiquity.com/
automotive/report_radio_station_
experiences.