CADILLAC CT4 2021 Owner's Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
130 LIGHTING
If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal function
may be inoperative. This vehicle may
be equipped with LED lighting. For
replacement of any LED lighting,
contact your dealer.
Cornering Lamps
If equipped with cornering lamps, they
automatically come on when all of the
following occur:
.The low-beam headlamps are on.
.The turn signals are activated or the
steering wheel is at a turning angle.
.The vehicle speed is below 40 km/h
(25 mph) .
Interior Lighting
Instrument Panel
Illumination Control
This feature adjusts the brightness of
all illuminated controls.
D:Move the thumbwheel up or
down to brighten or dim the lights.
The thumbwheel is functional at
night, or when the headlamps or
parking lamps are ON.
The brightness of the displays
automatically adjusts based on
outdoor lighting. The instrument panel illumination control will set the
lowest level to which the displays will
automatically be adjusted.
Courtesy Lamps
The courtesy lamps come on when
any door is opened,
Kon the remote
key is pressed, or when the ignition is
switched off. See Dome Lamps0130.
Dome Lamps
The dome lamp controls are in the
overhead console.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
LIGHTING 131
To operate, press the following
buttons:
jOFF :Press to turn off the dome
lamps when any door is opened,
Kon
the remote key is pressed, or when the
ignition is switched off. An indicator
light on the button will turn on when
the dome lamp override is activated.
Press
jOFF again to deactivate
this feature and the indicator light will
turn off. The dome lamps will come
on when doors are opened,
Kon the
remote key is pressed, or the ignition
is switched off.
+ON/OFF : Press to turn the dome
lamps on and off manually.
Reading Lamps
There are front and rear reading
lamps on the overhead console and
over the rear passenger doors. These
lamps will come on when any door is
opened,
Kon the remote key is
pressed, or when the ignition is
switched off. To operate, the ignition must be on,
or in ACC/ACCESSORY, or using
Retained Accessory Power (RAP).
To manually turn the reading lamps
on or off:
Press the lamp lenses on the front
reading lamps.
Press the lamp lenses over the rear
passenger doors.
Lighting Features
Entry Lighting
Some exterior lamps turn on briefly at
night, or in areas with limited lighting,
when
Kis pressed on the remote key,
see Remote Keyless Entry (RKE) System
Operation 07. After about 30 seconds
the exterior lamps turn off. Entry
lighting can be disabled manually by
turning the ignition on or to ACC/
ACCESSORY, or by pressing
Qon the
remote key. When any door is opened
or remote unlock pressed, all interior
lights turn on and then interior lamps
dim to off after 20 seconds after all
doors are closed.
The entry lighting feature for exterior
lighting can be changed. See “Vehicle
Locator Lights” underVehicle
Personalization 0117.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
132 LIGHTING
Entry Lighting with Approach
Detection
If equipped with approach detection,
the entry lighting feature will
automatically turn on when the
remote key is detected within
approximately 2 m (6 ft) of the vehicle.
If the vehicle has remained parked for
an extended period of time with no
remote key use or Keyless Access
operation, approach detection will be
disabled. To reactivate, press any
button on the remote key or open and
close all vehicle doors to re-enable the
entry lighting feature on approach.
Approach detection will not work if:
.The vehicle battery is low.
.The ignition is on or in ACC/
ACCESSORY.
.Entry lighting is set to Off. See
“Vehicle Locator Lights”under
Vehicle Personalization 0117.
Approach detection will not work with
a single remote key if:
.The remote key is left within a 5 m
(16 ft) range of the vehicle for
several minutes
.The remote key is left inside the
vehicle and all the doors are closed
To help maximize remote key battery
life, do not store the remote key
within 5 m (16 ft) of the vehicle.
Exit Lighting
Some exterior lamps come on at night,
or in areas with limited lighting, when
the driver door is opened after the
ignition is turned off.
The dome lamp comes on after the
ignition is turned off or any door is
opened. The exterior lamps and dome
lamp remain on after the door is
closed for a set amount of time, then
automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
The exit lighting for exterior lights can
be changed. See Vehicle Personalization
0 117.
Battery Load Management
The vehicle has Electric Power
Management (EPM), which estimates
the battery's temperature and state of
charge. It then adjusts the voltage for
best performance and extended life of
the battery.
When the battery's state of charge is
low, the voltage is raised slightly to
quickly bring the charge back up.
When the state of charge is high, the
voltage is lowered slightly to prevent
overcharging. If the vehicle has a
voltmeter gauge or a voltage display
on the Driver Information Center
(DIC), you may see the voltage move
up or down. This is normal. If there is
a problem, an alert will be displayed.
The battery can be discharged at idle
if the electrical loads are very high.
This is true for all vehicles. This is
because the generator (alternator)
may not be spinning fast enough at
idle to produce all the power that is
needed for very high electrical loads.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
LIGHTING 133
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog lamps,
rear window defogger, climate control
fan at high speed, heated seats, engine
cooling fans, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce the
power demands of some accessories.
Normally, these actions occur in steps
or levels, without being noticeable. In
rare cases at the highest levels of
corrective action, this action may be
noticeable to the driver. If so, a DIC
message might be displayed. If a
battery message is displayed, it is
recommended that the driver reduce
the electrical loads as much as
possible. SeeDriver Information Center
(DIC) (Base Level) 0107 or
Driver Information Center (DIC)
(Uplevel) 0110.Battery Power Protection
The battery saver feature is designed
to protect the vehicle's battery.
If some interior lamps are left on and
the ignition is turned off, the battery
rundown protection system
automatically turns the lamp off after
some time.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is turned
off, if the parking lamps or headlamps
have been manually left on. This
protects against draining the battery.
To restart the 10-minute timer, turn
the exterior lamp control to the
O
position and then back to the;or
2position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
134 INFOTAINMENT SYSTEM
Infotainment System
Introduction
Introduction . . . . . . . . . . . . . . . . . . . . . . 134
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Steering Wheel Controls . . . . . . . . . 137
Using the System . . . . . . . . . . . . . . . . . 137
Software Updates . . . . . . . . . . . . . . . . . 140
Radio
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . 141
HD Radio Technology . . . . . . . . . . . . 143
Radio Data System (RDS) . . . . . . . . 143
Satellite Radio . . . . . . . . . . . . . . . . . . . . 144
Radio Reception . . . . . . . . . . . . . . . . . . 144
Multi-Band Antenna . . . . . . . . . . . . . 145
Audio Players
Avoiding Untrusted MediaDevices . . . . . . . . . . . . . . . . . . . . . . . . . . 145
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Bluetooth Audio . . . . . . . . . . . . . . . . . . 148
OnStar System
OnStar System . . . . . . . . . . . . . . . . . . . . 149
Navigation
Using the Navigation System . . . . 150
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Navigation Symbols . . . . . . . . . . . . . . 154
Destination . . . . . . . . . . . . . . . . . . . . . . . 155 OnStar System . . . . . . . . . . . . . . . . . . . . 160
Global Positioning
System (GPS) . . . . . . . . . . . . . . . . . . . 161
Vehicle Positioning . . . . . . . . . . . . . . . 162
Problems with Route Guidance . . . . . . . . . . . . . . . . . . . . . . . . 162
If the System Needs Service . . . . . 163
Map Data Updates . . . . . . . . . . . . . . . 163
Database Coverage Explanations . . . . . . . . . . . . . . . . . . . . 163
Voice Recognition
Voice Recognition . . . . . . . . . . . . . . . . 163
Phone
Bluetooth (Overview) . . . . . . . . . . . . . 169
Bluetooth (Pairing and Using aPhone) . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . 174
Settings
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . 184
Trademarks and License
Agreements
Trademarks and LicenseAgreements . . . . . . . . . . . . . . . . . . . . . 187
Introduction
Read the following pages to become
familiar with the features.
{Warning
Taking your eyes off the road for
too long or too often while using
any infotainment feature can cause
a crash. You or others could be
injured or killed. Do not give
extended attention to infotainment
tasks while driving. Limit your
glances at the vehicle displays and
focus your attention on driving. Use
voice commands whenever possible.
The infotainment system has built-in
features intended to help avoid
distraction by disabling some features
when driving. These features may gray
out when they are unavailable. Many
infotainment features are also
available through the instrument
cluster and steering wheel controls.
Before driving:
.Become familiar with the operation,
center stack controls, steering wheel
controls, and infotainment display.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 135
.Set up the audio by presetting
favorite stations, setting the tone,
and adjusting the speakers.
.Set up phone numbers in advance
so they can be called easily by
pressing a single control or by using
a single voice command.
See Distracted Driving 0203.
Active Noise Cancellation (ANC)
If equipped, ANC reduces engine noise
in the vehicle’s interior. ANC requires
the factory-installed audio system,
radio, speakers, amplifier (if
equipped), induction system, and
exhaust system to work properly.
Deactivation is required by your dealer
if related aftermarket equipment is
installed.
Overview
Infotainment System
The infotainment system is controlled
by using the infotainment display,
controls on the center console,
steering wheel controls, and voice
recognition.
1.O(Power and Mute) Knob
.When off, press theOknob to
turn the system on.
.Turn to decrease or increase
the volume.
.Press and hold to turn the
power off.
.Press to mute/unmute the
system when on.
.When the power is on and the
system is not muted, a quick
status pane will display when
the knob is pressed. Pressing
the knob will mute the system
and trigger this pane to show a long press is required to
actually power down the
system.
2.VKnob
.Turn to highlight a feature.
Press to activate the
highlighted feature.
3.{(Home Page)
.Press to go to the Home Page.
See
“Home Page ”later in this
section.
Press to exit Android Auto or
Apple CarPlay. To enter back
into Android Auto or Apple
CarPlay, press and hold. See
Apple CarPlay and Android
Auto 0174.
4.W(Near Field Communication)
.See “Near Field
Communication (NFC)” under
Bluetooth (Overview) 0169 or
Bluetooth (Pairing and Using a
Phone) 0170

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
136 INFOTAINMENT SYSTEM
Infotainment Controls on the
Console with Navigation Shown,
Radio without Navigation Similar
1.e(Radio/AUX)
.Press to open the“Now
Playing” screen.
2.7(Seek)
.Radio: Press and release to go
to the previous station or
channel. Press and hold to
fast seek the next strongest
previous station or channel.
SeeAM-FM Radio 0141.
.USB/Bluetooth: Press to seek
to the beginning of the
current or previous track.
Press and hold to quickly
reverse through a track.
Release to return to playing
speed. See USB Port0145 or
Bluetooth Audio 0148.
3.n(Power/Volume) Knob
.Press to turn the power on.
.Press and hold when the
system is on to turn the
power off and display
the time.
.Press to mute/unmute the
system when on.
.Turn to decrease or increase
the volume.
4.6(Seek)
.Radio: Press and release to go
to the next station or channel.
Press and hold to fast seek
the next strongest station or
channel.
.USB/Bluetooth: Press to seek
the next track. Press and hold
to fast forward through a
track. Release to return to
playing speed. See USB Port
0 145 or
Bluetooth Audio 0148.
5.l(Navigation) or6(Phone)
.Presslto access the
navigation menu or press
6to
access the phone menu.
6. Primary Knob
.Turn to highlight a feature.
Press to activate the
highlighted feature.
.If equipped, move right/left or
up/down to change the
highlighted area on the
display screen.
7.6(Phone) or{(Home Page)
.Press6to access the phone
menu or press
{to access
the Home Page. See “Home
Page ”later in this section.
8.0(Back)
.Press to return to the previous
display in a menu.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 137
Home Page
The Home Page is where vehicle
application icons are accessed. Some
applications are disabled when the
vehicle is moving.
Swipe left or right across the display
to access the pages of icons.
Managing Home Page Icons1. Touch and hold any of the Home Page icons to enter edit mode.
2. Continue holding the icon and drag it to the desired position.
3. Release your finger to drop the icon in the desired position.
4. To move an application to another page, drag the icon to the edge of
the display toward the
desired page.
5. Continue dragging and dropping application icons as desired.
Steering Wheel Controls
The infotainment steering wheel
controls can be used to control the
infotainment features displayed in the
instrument cluster. When in Valet Mode, if equipped,
access to the infotainment functions
is disabled. See
“Valet Mode,”under
Vehicle Personalization 0117.
g:Press to answer an incoming call
or start voice recognition. See
Bluetooth (Overview) 0169 or
Bluetooth (Pairing and Using a Phone)
0 170.
c:Press to decline an incoming call
or end a current call. Press to mute or
unmute the infotainment system
when not on a call.
CorB: Press to go to the next or
previous favorite when listening to the
radio. Press to go to the next or
previous track when listening to a
media source.
SorT: Press to move between the
interactive displays in the instrument
cluster. Press
Sto go back to the
previous menu.
yorz: Use the thumbwheel to
scroll to the previous or next
selection.
V: Press the thumbwheel to open a
menu or select a menu item. Press
and hold to reset certain displays.
x+ orx– :Press to increase or
decrease the volume.
Using the System
Audio
Touch the Audio icon to display the
active audio source page. Examples of
available sources may include AM,
FM, SXM (if equipped), MyMedia,
USB, and Bluetooth.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
138 INFOTAINMENT SYSTEM
Phone
Touch the Phone icon to display the
Phone main page. SeeBluetooth
(Overview) 0169 or
Bluetooth (Pairing and Using a Phone)
0 170.
Nav
If equipped, touch the Nav icon to
display the navigation map. See Using
the Navigation System 0150.
Wi-Fi Hotspot
Touch the Wi-Fi Hotspot icon to
display the Wi-Fi Hotspot information.
See Settings 0176.
Climate
Touch the Climate icon to display the
Climate main page. See Dual
Automatic Climate Control System
0 196.
Users
If equipped, touch the Users icon to
sign in or create a new user profile,
and follow the on-screen instructions. Only four user profiles can be active at
one time in the vehicle. It may be
necessary to remove a profile from the
menu before creating or signing into
an existing profile. The removed
profile can be logged into at a
later time.
Settings
Touch the Settings icon to display the
Settings menu. See
Settings0176.
Apple CarPlay
Touch the Apple CarPlay icon to
activate Apple CarPlay if equipped
after a supported device is connected.
See Apple CarPlay and Android Auto
0 174.
Android Auto
Touch the Android Auto icon to
activate Android Auto, if equipped,
after a supported device is connected.
See Apple CarPlay and Android Auto
0 174.
Apps
If equipped, in-vehicle apps are
available for download. Touch the
Apps icon on the Home Page to begin. Downloading and using in-vehicle
apps requires Internet connectivity
which can be accessed with a data
plan through the vehicle’s built-in
4G LTE Wi-Fi hotspot, if equipped,
or a compatible mobile device hotspot.
On most mobile devices, activation of
the Wi-Fi hotspot is in the device’s
Settings menu under Mobile Network
Sharing, Personal Hotspot, Mobile
Hotspot, or similar.
Availability of apps and connectivity
varies by vehicle, conditions, and
location. Data plan rates apply.
Features are subject to change. For
more information, see
www.my.cadillac.com/learn.
OnStar Services
If equipped, touch the OnStar Services
icon to display the OnStar Services
and Account pages. See
OnStar
Overview 0413 and
OnStar System 0149.
Camera
If equipped, touch the Camera icon to
access the camera application. See
Assistance Systems for Parking or
Backing 0277.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 139
Shortcut Tray
The shortcut menu is on the left side
of the display. It shows the Home
application and four other
applications.
Infotainment Display Features
Infotainment display features show on
the display when available. When a
feature is unavailable, it may gray out.
When a feature is touched, it may
highlight.
Haptic Feedback
If equipped, haptic feedback is a pulse
that occurs when an icon or option is
touched on the display or when
controls below the display are pressed.
Infotainment Gestures
Use the following finger gestures to
control the infotainment system.Touch/Tap
Touch/tap is used to select an icon or
option, activate an application,
or change the location inside a map.
Touch and Hold
Touch and hold can be used to start
another gesture, or to move or delete
an application.Drag
Drag is used to move applications on
the Home Page, or to pan the map. To
drag the item, it must be held and
moved along the display to the new
location. This can be done up, down,
right, or left. This feature is only
available when vehicle is parked and
not in motion.
Nudge