2018 LEXUS RX450h window

408 5-1. Basic Operations
RX450h_RX450hL _U_OM48F85U■
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 an d 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 Assistan t is being used.
• When the air conditioning syst em’s fan speed is set high.
• When the air conditioning vents ar e 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 featur e of the cellular phone, ensure the active audio source is
Bluetooth 
audio or iPod in order to hear turn by turn direction prompts.

414 5-2. Setup
RX450h_RX450hL _U_OM48F85UGo to “Customize Images”: “MENU” button → “Setup” → “General” →
“Customize Images”
Select “Set Images” and then select the desired image.
Set as startup image.
Set as screen off image.
Set as startup image and screen
off image.■
Adding an image
Connect a USB memory device. ( → P. 409)
Select “Copy from USB” on the “Customize Images” screen and then
select the desired image.
Move the controller to the left and then select “Copy”. Up to 10 images can be downloaded.■
Deleting images
Select “Delete Images” on the “Customize Images” screen and then select the
desired images. ■
USB memory
When saving the images to a USB memory de vice, name the folder that the images are
saved to “Image”. ●
Compatible device formats
The following device format can be used:
• USB communication format: USB2.0 FS (480 Mbps)
• File system format: FAT16/32 (Windows)
• Correspondence class: Mass storage class
The following types of files can be used:
• The image’s file fo rmat must be JPEG.
• The file name may only contain ASCII characters.●
JPEG file compatibility
Compatible image size: Maximum 5MBCustomizing images 1
2
1
2
3
1
2
3

4295-4. Using the radio
5
Lexus Display Audio system
RX450h_RX450hL _U_OM48F85U■
HD Radio™ Technology troubleshooting guide
■
Reception sensitivity ●
Maintaining perfect radio recept ion 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. Experience Cause Action
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.

434 5-5. Playing an audio CD and MP3/WMA/AAC discs
RX450h_RX450hL _U_OM48F85U■
Error messages
If the following error messages appear on th e screen, refer to the table and take the
appropriate measures. If the pr oblem is not rectified, take the vehicle to your Lexus
dealer.
■
Discs that can be used
Discs with the marks sh own below can be used.
Playback may not be possible depending on recording format or disc features, or due to
scratches, dirt or deterioration.
CDs with copy-protection feat ures may not play correctly.■
CD player protection feature
To protect the internal components, playback is automatically stopped when a problem is
detected. ■
If a disc is left inside the CD player or in the ejected position for extended periods
Disc may be damaged and may not play properly. ■
Lens cleaners
Do not use lens cleaners. Doing so may damage the CD player. ■
MP3, WMA and AAC files
MP3 (MPEG Audio LAYER3) is a standard audio compression format.
Files can be compressed to approximately 1/10 of their original size by using MP3 com-
pression.
WMA (Windows Media Audio) is a Microsoft audio compression format.
This format compresses audio data to a si ze smaller than that of the MP3 format.
AAC is short for Advanced Audio Coding and refers to an audi o compression technol-
ogy standard used with MPEG2 and MPEG4.
MP3, WMA and AAC file and media/formats compatibility are limited. Message Cause Correction procedures
“Check disc” • The disc is dirty or dam-
aged.
• The disc is inserted
upside down.
•The disc is not playable
with the player. •Clean the disc.
• Insert the disc correctly.
•Confirm the disc is play-
able with the player.
“DISC Error” There is a malfunction
within the system. Eject the disc.
“No music files found.” No playable data is
included on the disc. Eject the disc.

4355-5. Playing an audio CD and MP3/WMA/AAC discs
5
Lexus Display Audio system
RX450h_RX450hL _U_OM48F85U●
MP3 file compatibility
• Compatible standards
MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)
• Compatible sampling frequencies
MPEG1 LAYER3: 32, 44.1, 48 (kHz)
MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)
• Compatible bit rates (compatible with VBR)
MPEG1 LAYER3: 32-320 (kbps)
MPEG2 LSF LAYER3: 8-160 (kbps)
• Compatible channel modes: stereo, jo int stereo, dual channel and monaural●
WMA file compatibility
• Compatible standards
WMA Ver. 7, 8, 9 (only compatible with Window Media Audio Standard)
• Compatible sampling frequencies
32, 44.1, 48 (kHz)
• Compatible bit rates (only compatible with 2-channel playback)
Ver. 7, 8: CBR 48-192 (kbps)
Ver. 9: CBR 48-320 (kbps) ●
AAC file compatibility
• Compatible standards
MPEG4/AAC-LC
• Compatible sampling frequencies
11.025/12/16/22.05/24/32/44.1/48 (kHz)
• Compatible bit rates
16-320 (kbps)
• Compatible channel modes: 1 ch and 2 ch ●
Compatible media
Media that can be used for MP3, WMA and AAC playback are CD-Rs and CD-RWs.
Playback in some instances may not be po ssible if the CD-R or CD-RW is not final-
ized. Playback may not be possible or the audio may jump if the disc is scratched or
marked with fingerprints. ●
Compatible disc formats
The following disc formats can be used.
• Disc formats: CD-ROM Mode 1 and Mode 2
CD-ROM XA Mode 2, Form 1 and Form 2
• File formats: ISO9660 Level 1, Level 2, (Romeo, Joliet)
UDF (2.01 or lower)
MP3, WMA and AAC files written in any fo rmat other than those listed above may
not play correctly, and their file names an d folder names may not be displayed cor-
rectly.
Items related to standards an d limitations are as follows.
• Maximum directory hierarchy: 8 levels (including the root)
• Maximum length of folder na mes/file names: 32 characters
• Maximum number of folders: 192 (including the root)
• Maximum number of files per disc: 255

436 5-5. Playing an audio CD and MP3/WMA/AAC discs
RX450h_RX450hL _U_OM48F85U●
File names
The only files that can be recognized as MP3/WMA/AAC and played are those with
the extension .mp3, .wma or .m4a. ●
Discs containing mult i-session recordings
As the audio system is compatible with multi session discs, it is possible to play discs
that contain MP3, WMA and AAC files. Howeve r, only the first session can be played.●
ID3, WMA and AAC tags
ID3 tags can be added to MP3 files, making it possible to record the track title, artist
name, etc.
The system is compatible with ID3 Ver. 1.0, 1.1, and Ver. 2.2, 2.3 ID3 tags. (The number
of characters is based on ID3 Ver. 1.0 and 1.1.)
WMA tags can be added to WMA files, making it possible to record the track title and
artist name in the same way as with ID3 tags.
AAC tags can be added to AAC files, making it possible to record the track title and
artist name in the same way as with ID3 tags. ●
MP3, WMA and AAC playback
When a disc containing MP3, WMA or AAC fi les is inserted, all files on the disc are
first checked. Once the file check is fi nished, the first MP3, WMA or AAC file is
played. To make the file check finish more quickly, we recommend you do not write any
files to the disc other than MP3, WMA or AAC files or create any unnecessary fold-
ers.
Discs that contain a mixture of music data and MP3, WMA or AAC format data can-
not be played. ●
Extensions
If the file extensions .mp3, .wma and .m4a are used for files other than MP3, WMA
and AAC files, they may be mistakenly recognized and played as MP3, WMA and
AAC files. This may result in large amount s of interference and damage to the speak-
ers. ●
Playback
• To play MP3 files with steady sound quality, we recommend a fixed bit rate of at least
128 kbps and a sampling frequency of 44.1 kHz.
• CD-R or CD-RW playback may not be poss ible in some instances, depending on
the characteristics of the disc.
• There is a wide variety of freeware an d other encoding software for MP3, WMA
and AAC files on the market, and depending on the status of the encoding and the
file format, poor sound quality or noise at the start of playback may result. In some
cases, playback may not be possible at all.
• When files other than MP3, WMA or AAC files are recorded on a disc, it may take
more time to recognize the disc and in some cases, playback may not be possible at
all.
• Microsoft, Windows, and Windows Media ar e the registered trademarks of Micro-
soft Corporation in the U.S.A. and other countries.

4455-6. Using an external device
5
Lexus Display Audio system
RX450h_RX450hL _U_OM48F85U■
USB memory functions ●
Depending on the USB memory device that is connected to the system, the device
itself may not be operable and certain functions may not be available. If the device is
inoperable or a function is unavailable due to a malfunction (as opposed to a system
specification), disconnecting the device an d reconnecting it may resolve the problem.●
If the USB memory device still does not begin operation after being disconnected and
reconnected, format the device. ■
Error messages for USB memory
If the following error messages appear on th e screen, refer to the table and take the
appropriate measures. If the pr oblem is not rectified, take the vehicle to your Lexus
dealer.
■
USB memory ●
Compatible devices
USB memory devices that can be used for MP3, WMA and AAC playback. ●
Compatible device formats
The following device format can be used:
• USB communication format: USB2.0 FS (480 Mbps)
• File system format: FAT16/32 (Windows)
• Correspondence class: Mass storage class
MP3, WMA and AAC files written to a devi ce with any format other than those
listed above may not play correctly, and their file names and folder names may not
be displayed correctly.
Items related to standards an d limitations are as follows:
• Maximum directory hierarchy: 8 levels
• Maximum number of folders in a device: 3000 (including the root)
• Maximum number of files in a device: 9999
• Maximum number of files per folder: 255 Message Cause/Correction procedures
“Connection error. Please con-
sult your Owner’s Manual for
instructions on how to connect
the USB device.” This indicates a problem with the USB memory
device or its connection.
“There are no files available for
playback. Please add compati-
ble files to your USB device.” This indicates that no MP3/WMA/AAC files are
included on the USB memory device.

446 5-6. Using an external device
RX450h_RX450hL _U_OM48F85U●
MP3, WMA and AAC files
MP3 (MPEG Audio LAYER 3) is a standard audio compression format.
Files can be compressed to approximately 1/ 10 of their original size using MP3 com-
pression.
WMA (Windows Media Audio) is a Microsof t audio compression format. This format
compresses audio data to a size smaller than that of the MP3 format.
AAC is short for Advanced Audio Coding and refers to an audi o compression technol-
ogy standard used with MPEG2 and MPEG4.
MP3, WMA and AAC file and media/formats compatibility are limited. ●
MP3 file compatibility
• Compatible standards
MP3 (MPEG1 AUDIO LAYERIII, MPEG2 AUDIO LAYERIII)
• Compatible sampling frequencies
MPEG1 AUDIO LAYERIII: 32, 44.1, 48 (kHz)
MPEG2 AUDIO LAYERIII: 16, 22.05, 24 (kHz)
• Compatible bit rates (compatible with VBR)
MPEG1 AUDIO LAYERIII: 32-320 (kbps)
MPEG2 AUDIO LAYERIII: 8-160 (kbps)
• Compatible channel modes: stereo, jo int stereo, dual channel and monaural●
WMA file compatibility
• Compatible standards
WMA Ver. 7, 8, 9 (only compatible with Window Media Audio Standard)
• Compatible sampling frequencies
32, 44.1, 48 (kHz)
• Compatible bit rates (only compatible with 2-channel playback)
Ver. 7, 8: CBR 48-192 (kbps)
Ver. 9: CBR 48-320 (kbps) ●
AAC file compatibility
• Compatible standards
MPEG4/AAC-LC
• Compatible sampling frequencies
11.025/12/16/22.05/24/32/44.1/48 (kHz)
• Compatible bit rates
16-320 (kbps)
• Compatible channel modes: 1 ch and 2 ch ●
MP4, WMV and AVI files
The following resolutions can be used:
128x96, 160x120, 176x144 (QCIF), 320x240 (QVGA), 352x240 (SIF),
352x288 (CIF), 640x480 (VGA), 720x480 (NTSC), 720x576 (PAL) ●
File names
The only files that can be recognized as MP3/WMA/AAC and played are those with
the extension .mp3, .wma or .m4a.