2021 CADILLAC CT4 audio

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 141
Radio
AM-FM Radio
Playing the Radio
Presseon the console controls or
touch the Audio icon on the Home
Page to display the active audio
source page. Choose the three most
recently used sources listed at the left
side of the display. Choose the More
option to display a list of available
sources. Examples of available sources
may include AM, FM, SXM (if
equipped), MyMedia, USB, AUX (if
equipped), and Bluetooth.
Infotainment System
Sound Menu
From any of the audio source main
pages, touch Sound to display the
following:
Equalizer : Touch to adjust Bass,
Midrange, Treble, and Surround (if
equipped) using the options on the
infotainment display. Fade/Balance :
Touch to adjust by
using the controls on the
infotainment display or by tapping/
dragging the crosshair.
Sound Mode (If Equipped)
.Bose Centerpoint surround sound
systems have four sound modes:
‐Normal: Adjusts the audio to
provide the best sound for all
seating positions.
‐ Driver: Adjusts the audio to
provide the best sound for the
driver.
‐ Rear: Adjusts the audio to provide
the best sound for the rear seat
occupants.
‐ Centerpoint: Turns on Bose
Centerpoint surround technology.
This setting creates a surround
sound from nearly any audio
source: existing stereo and MP3
players. For more information on
Bose Centerpoint surround
technology, see
www.boseautomotive.com.
Finding a Station
Seeking a Station
From the AM, FM, or SXM (if
equipped) option, press
7or6on
the console controls or from the AM
or FM menu, touch
7or6to search
for the previous or next strong station
or channel.
Browsing Stations
Touch the Browse option to list all
available stations or channels.
Navigate up and down through all
stations and channels by scrolling the
list. Touch the station you want to
listen to. Touch
Hto save the station
or channel as a favorite.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 143
Favorites can also be stored by
touching
Hin a station or channel
list. This will highlight indicating that
it is now saved as a favorite.
The number of favorites displayed is
automatically adjusted by default, but
can be manually adjusted in Settings
in the System tab under Favorites and
then Set Number of Audio Favorites.
It can also be adjusted in Settings in
the Apps tab under Audio and then
Set Number of Audio Favorites.
HD Radio Technology
If equipped, HD Radio is a free service
with features such as digital quality
sound, more stations available on a
single frequency such as HD2 and
HD3, and display information such as
artist and song title.
From the Now Playing display, touch
the HD Radio icon to turn HD on
or off.
Station Access
To access HD Radio stations:
1. Tune the radio to the station. If HD Radio is turned on and the station
is broadcasting in HD Radio, the radio will automatically tune to the
HD version of the current channel
(HD1) after several seconds. The
radio will also display icons
representing additional channels
(HD2, ...HD8), that may be
available. When the radio
successfully tunes to a HD station,
the HD logo will display and digital
audio will play.
2. Touch the display arrows to tune to the previous or next HD Radio
station.
There may be a delay before the
station starts playing.
The HD Radio station number is
indicated next to the HD logo.
HD Radio stations can be saved as
favorites.
For a list of all stations, see
www.hdradio.com.
HD Radio Troubleshooting
Digital Audio Delay : Wait for the
signal to process. This can take
several seconds. Volume Change, Audio Skip, Echo,
Digital Audio Lost :
Station signal
strength may be weak, the station is
out of range, or the station may be
out of alignment. Verify proper
reception on another station.
If the HD Radio signal weakens while
listening to HD1, the radio will
automatically switch to the analog
version of the radio station.
If the HD Radio signal loses reception
while listening to stations HD2 to
HD8, the radio mutes until the signal
can be recovered or until the station is
changed.
HD Radio can be disabled if driving in
a weak signal area. Touch HD Radio
On/Off to toggle HD Radio reception
on and off.
Radio Data System (RDS)
If equipped, RDS features are available
for use only on FM stations that
broadcast RDS information. With RDS,
the radio can:
.Group stations by Category (i.e.,
Program Type) such as Rock, Jazz,
Classical, etc.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
144 INFOTAINMENT SYSTEM
.Display messages from radio
stations.
This system relies on receiving
specific information from these
stations and only works when the
information is available. It is possible
that a radio station could broadcast
incorrect information that causes the
radio features to work improperly.
If this happens, contact the radio
station.
When information is broadcast from a
RDS station, the station name or call
letters display on the audio screen.
Radio text supporting the currently
playing broadcast may also appear.
Satellite Radio
SiriusXM Radio Service
If equipped, vehicles with a valid
SiriusXM radio subscription can
receive SiriusXM programming.
SiriusXM radio has a wide variety of
programming and commercial-free
music, coast to coast, in digital-quality
sound. In the U.S., see
www.siriusxm.com or call 1-888-601-6296. In Canada, see
www.siriusxm.ca or call
1-877-438-9677.
When SiriusXM is active, the channel
name, number, song title, and artist
appear on the display.
SiriusXM with 360L
SiriusXM with 360L interface has
enhanced in-vehicle listening
experience for subscribers. The
experience now offers more categories
and system learned recommendations
toward discovering more personalized
content.
To use the full SiriusXM 360L
program, including streaming content
and listening recommendations,
OnStar Connected Access is required.
Connected vehicle services vary by
model and require a complete working
electrical system, cell reception, and
GPS signal. An active connected plan
is required.
Reference the SiriusXM user guide for
use and subscription information.
Radio Reception
Unplug electronic devices from the
accessory power outlets if there is
interference or static in the radio.
FM
FM signals only reach about 16 to
65 km (10 to 40 mi). Although the
radio has a built-in electronic circuit
that automatically works to reduce
interference, some static can occur,
especially around tall buildings or
hills, causing the sound to fade in
and out.
AM
The range for most AM stations is
greater than for FM, especially at
night. The longer range can cause
station frequencies to interfere with
each other. Static can also occur when
things like storms and power lines
interfere with radio reception. When
this happens, try reducing the treble
on the radio.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 145
SiriusXM Satellite Radio Service
If equipped, SiriusXM Satellite Radio
Service provides digital radio
reception. Tall buildings or hills can
interfere with satellite radio signals,
causing the sound to fade in and out.
In addition, traveling or standing
under heavy foliage, bridges, garages,
or tunnels may cause loss of the
SiriusXM signal for a period of time.
Some cellular services may interfere
with SXM reception causing loss of
signal.
Mobile Device Usage
Mobile device usage, such as making
or receiving calls, charging, or just
having the mobile device on may
cause static interference in the radio.
Unplug the mobile device or turn it
off if this happens.
Multi-Band Antenna
The roof antenna may be used for
radio, navigation, and OnStar,
depending on the equipped options.
Keep clear of obstructions for clearreception. If the vehicle has a sunroof,
and it is open, reception can also be
affected.
Audio Players
Avoiding Untrusted Media
Devices
When using media devices such as SD
cards, USB devices, and mobile
devices, consider the source.
Untrusted media devices could
contain files that affect system
operation or performance. Avoid use if
the content or origin cannot be
trusted.
USB Port
Audio stored on a USB device may be
listened to.
The vehicle may be equipped with two
USB ports in the center console under
the armrest. These ports are for data
and charging. There may also be two
USB ports for charging only at the rear
of the center console.
Caution
To avoid vehicle damage, unplug all
accessories and disconnect all
accessory cables from the vehicle
when not in use. Accessory cables
left plugged into the vehicle,
unconnected to a device, could be
damaged or cause an electrical
short if the unconnected end comes
in contact with liquids or another
power source such as the accessory
power outlet.
Playing from a USB
A USB mass storage device can be
connected to the USB port.
Audio extensions supported by the
USB may include:
.MP3
.AAC
.OGG
.3GP
Gracenote
When plugging in a USB device,
Gracenote service builds voice tags for
music. Voice tags allow artists, albums

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
146 INFOTAINMENT SYSTEM
with hard to pronounce names, and
nicknames to be used to play music
through voice recognition, if equipped.
While indexing, infotainment features
may be available.
My Media Library
MyMedia is only available when more
than one indexed device is connected.
It allows access to content from all
indexed media sources. MyMedia will
show as an available source in the
Source page.
USB MP3 Player and USB Devices
The USB MP3 players and USB devices
connected must comply with the USB
Mass Storage Class specification
(USB MSC).
To play a USB device:1. Connect the USB.
2. Touch Audio from the Home Page.
3. Touch the More option and then touch the USB device.
Use the following when playing an
active USB source:
p: Touch to play the current media
source.
j: Touch to pause playback of the
current media source.
7:
.Touch to seek the beginning of the
current or previous track.
.Touch and hold to reverse quickly
through playback. Release to return
to playing speed. Elapsed time
displays.
6:
.Touch to seek the next track.
.Touch and hold to advance quickly
through playback. Release to return
to playing speed. Elapsed time
displays.
Shuff le : Touch the shuffle icon to
play music in random order.
USB Sound Menu
See “Infotainment System Sound
Menu ”under AM-FM Radio 0141.
USB Browse Menu
When a list of songs, albums, artists,
or other types of media displays, the
up and down arrows and A-Z appear on the left side. Select A-Z to view a
display that will show all letters of the
alphabet and select the letter to go to.
Touch the up and down arrows to
move the list up and down.
Touch Browse and the following may
display:
Playlists:
1. Touch to view the playlists stored on the USB.
2. Touch a playlist to view the list of all songs in that playlist.
3. Touch a song from the list to begin playback.
Supported playlist extensions are m3u
and pls.
Artists: 1. Touch to view the list of artists stored on the USB.
2. Touch an artist name to view a list of all albums by the artist.
3. To select a song, touch All Songs or touch an album and then touch a
song from the list.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 147
Songs:1. Touch to display a list of all songs on the USB.
2. To begin playback, touch a song from the list.
Albums: 1. Touch to view the albums on the USB.
2. Touch the album to view a list of all songs on the album.
3. Touch a song from the list to begin playback.
Genres: 1. Touch to view the genres on the USB.
2. Touch a genre to view a list of artists.
3. Touch an artist to view albums by that artist.
4. Touch an album to view songs on the album.
5. Touch a song to start playback. Composers:
1. Touch to view the composers on the USB.
2. Touch a Composer to view a list of albums by that composer.
3. Touch an album or All Songs to view a list of songs.
4. Touch a song from the list to begin playback.
Folders: 1. Touch to view the directories on the USB.
2. Touch a folder to view a list of all files.
3. Touch a file from the list to begin playback.
Podcasts : Touch to view the podcasts
on the connected Apple device and
get a list of podcast episodes.
Audiobooks:
1. Touch to view the audiobooks stored on the Apple device.
2. Touch an audiobook to get a list of chapters.
3. Touch the chapter from the list to begin playback. File System and Naming
File systems supported by the USB
may include:
.FAT32
.NTFS
.HFS+
The songs, artists, albums, and genres
are taken from the file’s song
information and are only displayed if
present. The radio displays the file
name as the track name if the song
information is not available.
Supported Apple Devices
To view supported devices, see
my.cadillac.com/learn.
Storing and Recalling Media
Favorites
To store media favorites, touch
Browse to display a list of media
types.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
148 INFOTAINMENT SYSTEM
Touch one of the following Browse
options to save a favorite:
Playlists :Touch
Hnext to any
playlist to store the playlist as a
favorite. Touch a saved favorite to
recall a favorite playlist. The first song
in the playlist begins to play.
Artists : Touch
Hnext to any artist
to store the artist as a favorite. Touch
a saved favorite to recall a favorite
artist. The first song in the artist list
begins to play.
Songs : Touch
Hnext to any song to
store the song as a favorite. Touch a
saved favorite to recall a favorite song.
Albums : Touch
Hnext to any
album to store the album as a
favorite. Touch a saved favorite to
recall a favorite album. The first song
in the album list begins to play.
Genres : Touch
Hnext to any genre
to store the genre as a favorite. Touch
a saved favorite to recall a favorite
genre. The first song of the genre
begins to play. Podcasts :
Touch
Hnext to any
podcast to store the podcast as a
favorite. Touch a saved favorite to
recall a favorite podcast. The podcast
begins to play.
Audiobooks : Touch
Hnext to any
audiobook to store the audiobook as a
favorite. Touch a saved favorite to
recall a favorite audiobook. The first
chapter in the audiobook begins
to play.
Media Playback and Mute
USB playback will be paused if the
system is muted. If the steering wheel
mute control is pressed again,
playback will resume.
If the source is changed while in
mute, playback resumes and audio
will unmute.
Bluetooth Audio
Music may be played from a paired
Bluetooth device. See Bluetooth
(Overview) 0169 or
Bluetooth (Pairing and Using a Phone)
0 170 for help pairing a device. Volume and song selection may be
controlled by using the infotainment
controls or the mobile device.
If Bluetooth is selected and no volume
is present, check the volume setting
on both your mobile device and the
infotainment system.
Music can be launched by touching
Bluetooth from the recent sources list
on the left of the display or by
touching the More option and then
touching the Bluetooth device.
To play music via Bluetooth:
1. Power on the device, and pair to connect the device.
2. Once paired, touch Audio from the Home Page, then touch Bluetooth
from the recent sources list on the
left of the display.
Bluetooth Sound Menu
See “Infotainment System Sound
Menu ”under AM-FM Radio 0141.
Manage Bluetooth Devices
From the Home Page: 1. Touch Audio.
2. Touch More.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 149
3. Touch Bluetooth.
4. Touch Devices to add or deletedevices.
When touching Bluetooth, the radio
may not be able to launch the audio
player on the connected device to
start playing. When the vehicle is not
moving, use the mobile device to
begin playback.
All devices launch audio differently.
When selecting Bluetooth as a source,
the radio may show as paused on the
display. Press play on the device or
touch
pon the display to begin
playback.
Browse functionality will be provided
where supported by the Bluetooth
device. This media content will not be
part of the MyMedia source mode.
Some smartphones support sending
Bluetooth music information to
display on the radio. When the radio
receives this information, it will check
to see if any is available and display it.
For more information about supported
Bluetooth features, see
my.cadillac.com/learn.
OnStar System
4G LTE
If equipped with 4G LTE, up to seven
devices, such as smartphones, tablets,
and laptops, can be connected to
high-speed Internet through the
vehicle’s built-in Wi-Fi hotspot.
Call 1-888-4ONSTAR (1-888-466-7827)
to connect to an OnStar Advisor for
assistance. See www.onstar.com for
vehicle availability, details, and system
limitations. Service and connectivity
may vary by make, model, year,
carrier, availability, and conditions.
4G LTE service is available in select
markets. 4G LTE performance is based
on industry averages and vehicle
systems design. Some services require
a data plan.
The OnStar App
If equipped, the infotainment system
has OnStar controls in the embedded
OnStar app on the Home Page. Most
OnStar functions that can be
performed with the buttons can be
done using the app. To open the app,
touch the OnStar icon on the Home Page. App updates require a
corresponding service plan. Features
vary by region and model. Features
are subject to change. For more
information, see my.cadillac.com/learn
or press
Q.
Services
The Services tab displays the default
view for the app. Use this page to
launch the available OnStar services.
Touch a service to open its display.
Touch Wi-Fi to launch the
connections manager. Turn-by-Turn
and Advisor Call are the other tiled
options.
Account
The Account tab displays a snapshot
of the account linked with the vehicle.
If there is no such account, this tab
will show all values as ——. The call
advisor call icon will be active even if
there is no active account.
Advisor Call
Selecting Advisor Call is the same as
pressing
Qor calling 1-888-4ONSTAR
(1-888-466-7827). The X option in the