2021 CADILLAC CT4 ECO mode

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 169
“Voice Keypad”:Begin a dialog to
enter special numbers like
international numbers. The numbers
can be entered in groups of digits with
each group of digits being repeated
back by the system. If the group of
digits is not correct, the command
“Delete ”will remove the last group of
digits and allow them to be re-entered.
Once the entire number has been
entered, the command “Call”will start
dialing the number.
Phone Assistant Voice
Recognition
Press and holdgon the steering
wheel controls to pass through and
launch Google phone assistant or Siri.
For the low radio, whether connected
by Bluetooth or phone projection, the
only available voice recognition is
either Siri (iPhone) or the Google
Assistant (Android).
Phone
Bluetooth (Overview)
The Bluetooth-capable system can
interact with many mobile devices,
allowing:
.Placement and receipt of calls in a
hands-free mode.
.Sharing of the device’s address book
or contact list with the vehicle.
To minimize driver distraction, before
driving, and with the vehicle parked:
.Become familiar with the features of
the mobile device. Organize the
phone book and contact lists clearly
and delete duplicate or rarely used
entries. If possible, program speed
dial or other shortcuts.
.Review the controls and operation
of the infotainment system.
.Pair mobile device(s) to the vehicle.
The system may not work with all
mobile devices. See “Pairing”later in
this section. Vehicles with a Bluetooth system can
use a Bluetooth-capable mobile device
with a Hands-Free Profile to make and
receive phone calls. The infotainment
system and voice recognition are used
to control the system. The system can
be used while the ignition is on or in
ACC/ACCESSORY. The range of the
Bluetooth system can be up to 9.1 m
(30 ft). Not all mobile devices support
all functions and not all mobile
devices work with the Bluetooth
system. See my.cadillac.com for more
information about compatible mobile
devices.
Controls
Use the controls on the center stack
and the steering wheel to operate the
Bluetooth system.
Steering Wheel Controls
g:
Press to answer incoming calls
and start voice recognition on your
connected Bluetooth mobile device.
i: Press to end a call, decline a call,
or cancel an operation. Press to mute
or unmute the infotainment system
when not on a call.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
172 INFOTAINMENT SYSTEM
5. Touch the First to Connect option,to enable the setting for that
device.
Cell phones and mobile devices can be
added, removed, connected, and
disconnected. A sub-menu will display
whenever a request is made to add or
manage cell phones and mobile
devices.
Secondary Phone
A cell phone can be enabled as a
Secondary Phone by touching the
information icon to the right of the
paired cell phone name to open the
phone settings menu. If a cell phone
is enabled as a Secondary Phone, it
can connect simultaneously alongside
another Bluetooth mobile device. In
doing so, the Secondary Phone will be
labeled as Incoming Calls. This means
the mobile device can only receive
calls. The Address Book of a
Secondary Phone will not be available
and hands-free outgoing calls cannot
be placed using this cell phone.
If needed, touch the Secondary Phone
while in the Phones list to swap it into
the Outgoing and Incoming role. This role makes it possible to place
outgoing calls from the Contacts and
Recents list.
Listing All Paired and Connected
Phones
1. Touch the Phone icon on the Home Page or the phone icon on the
shortcut tray near the bottom of
the display.
2. Touch Phones.
Disconnecting a Connected Phone 1. Touch the Phone icon on the Home Page.
2. Touch Phones.
3. Touch the information icon next to the connected cell phone or mobile
device to show the cell phone’s or
mobile device’s information display.
4. Touch Disconnect.
Deleting a Paired Phone 1. Touch the Phone icon on the Home Page or the phone icon on the
shortcut tray near the bottom of
the display.
2. Touch Phones. 3. Touch the information icon next to
the connected cell phone to display
the cell phone’s or mobile device’s
information display.
4. Touch Forget Device.
Linking to a Different Phone
To link to a different cell phone, the
new cell phone must be in the vehicle
and paired to the Bluetooth system. 1. Touch the Phone icon on the Home Page or the phone icon on the
shortcut tray near the bottom of
the display.
2. Touch Phones.
3. Touch the new cell phone to link to from the not connected phone list.
See “First to Connect Paired
Phones” and“Secondary Phone ”
previously in this section.
Switching to Handsetor
Handsfree Mode
To switch between handset or
handsfree mode:
.While the active call is hands-free,
touch the Handset option to switch
to the handset mode.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 173
The mute icon will not be available
or functional while Handset mode is
active.
.While the active call is on the
handset, touch the Handset option
to switch to the hands-free mode.
Making a Call Using Contacts
and Recent Calls
Calls can be made through the
Bluetooth system using personal cell
phone contact information for all cell
phones that support the Phone Book
feature. Become familiar with the cell
phone settings and operation. Verify
the cell phone supports this feature.
The Contacts menu accesses the
phone book stored in the cell phone.
The Recents menu accesses the
recents call list from your cell phone.
To make a call using the
Contacts menu:1. Touch the Phone icon on the Home Page.
2. Touch Contacts. 3. The Contacts list can be searched
by using the first character. Touch
A-Z on the infotainment display to
scroll through the list of names.
Touch the name to call.
4. Touch the desired contact number to call.
To make a call using the
Recents menu: 1. Touch Phone on the Home Page.
2. Touch Recents.
3. Touch the name or number to call.
Making a Call Using the Keypad
To make a call by dialing the
numbers:1. Touch the Phone icon on the Home Page.
2. Touch Keypad and enter a phone number.
3. Touch
#on the infotainment
display to start dialing the number.
Searching Contacts Using the
Keypad
To search for contacts using the
keypad:
1. Touch the Phone icon on the Home Page.
2. Touch Keypad and enter partial phone numbers or contact names
using the digits on the keypad to
search.
Results will show on the right side
of the display. Touch one to place
a call.
Accepting or Declining a Call
When an incoming call is received, the
infotainment system mutes and a ring
tone is heard in the vehicle.
Accepting a Call
There are two ways to accept a call:
.Pressgon the steering wheel
controls.
.Touch Answer on the infotainment
display.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
178 INFOTAINMENT SYSTEM
.Data Services: If equipped, this
setting determines if data sharing
can be used by features including
Wi-Fi, Hotspot, and applications.
Touch Off to disable data services.
Emergency services and phone calls,
such as calls with OnStar Advisors
or others, will not be affected when
Off is selected.
.Voice Recognition Sharing: This
setting determines if voice
commands can be shared with a
cloud-based voice recognition
system. Touch Off to prevent the
sharing and possible recording of
your voice commands with this
system. This may limit the system’s
ability to understand your voice
commands and may disable some
features.
.Types: This setting lists all
Android-defined as dangerous
permissions currently used by the
infotainment system, the number of
applications that have requested
this permission, and the number of
applications that are allowed to use
this permission.
.Used By Applications: This setting
lists all applications that are
requested or are using
Android-defined as dangerous
permissions. Only requested and
active permissions are shown.
Display
Touch and the following may display:
.Mode: This adjusts the appearance
of the navigation map view and any
downloaded apps optimized for day
or night time conditions. Set to
Auto for the display to
automatically adjust based on
bright/dark conditions.
Touch Auto, Day, or Night to adjust
the display.
.Calibrate Touchscreen: Touch to
calibrate the infotainment display
and follow the prompts.
.Turn Display Off: Touch to turn the
display off. Touch anywhere on the
infotainment display or press any
infotainment control on the center
stack again to turn the display on. Sounds
Touch and the following may display:
.Maximum Startup Volume: This
feature adjusts the maximum
volume of the infotainment system
when you start the vehicle. To set
the maximum startup volume,
touch the controls on the
infotainment display to increase or
decrease.
.Audio Cues: This feature determines
if sounds play when the
infotainment system starts up and
shuts down. This feature can be
turned off or on.
.Set Audio Cue Volume: This setting
controls the volume of Audio Cues
played on startup and shutdown.
Touch the controls on the
infotainment display to increase or
decrease.
.Audible Touch Feedback: This
setting determines if a sound plays
when touching the infotainment
display or radio controls. This
feature can be turned off or on.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 179
Voice
Touch and the following may display:
.Confirm More/Less: This setting
specifies how often the voice
recognition system confirms
commands. Touch Confirm More to
have the system check with you
more often before acting on your
commands.
.Prompt Length: This setting
specifies the amount of detail the
voice recognition system provides
when giving you feedback. Touch
Auto to have the system
automatically adjust to your speech
habits. Touch Informative, Short,
or Auto.
.Audio Feedback Speed: Touch Slow,
Medium, or Fast to adjust how
quickly the voice recognition system
speaks.
.Friendly Prompts: This setting
adjusts the formality of voice
prompts. Touch Off for shorter
prompts. Touch On to hear prompts
with more personality. Touch Auto
to have the prompt match your
command style.
.Tutorial Mode: Touch Off or On to
provide tutorial feedback on the
display.
.Allow Prompt Interruptions: This
setting controls whether voice
commands can be spoken before
voice prompts finish. Turn this on
to speak commands without hearing
the full prompt. Speaking while the
prompt is still playing will
immediately stop playing the
current prompt and recognize your
command. Background noise may
cause accidental interruptions.
Touch Off or On.
Favorites
Touch and the following may display:
.Manage Favorites: Touch to display
a list of Audio, Phone, and
Navigation favorites.
Favorites can be moved, renamed,
or deleted.
To move, touch and hold the
favorite, and then drag up or down
to rearrange the position.
.Set Number of Audio Favorites:
Touch to select how many favorites
pages can be viewed from the audio application. The Auto setting will
automatically adjust this number
based on the number of favorites
you have saved. Touch Auto, 5, 10,
15, 20, 25, 30, 35, or 40.
Updates
If equipped, the vehicle can download
and install select software updates
over a wireless connection. The
system will prompt for certain
updates to be downloaded and
installed. There is also an option to
check for updates manually.
To manually check for updates, touch
Settings on the Home Page and select
the System tab. Go to the Vehicle
Software section and touch Updates.
Follow the on-screen prompts. The
steps to check for, download, and
install updates may vary by vehicle.
The vehicle can be used normally
during the software download. Once
the download is complete, there may
be a prompt to accept the installation
of the update upon the next ignition
cycle or the next time the vehicle is
shifted into P (Park). For most
updates, the vehicle will be disabled
and cannot be driven during the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CLIMATE CONTROLS 197
Climate Control Display
1. Driver and Passenger TemperatureDisplays
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Air Delivery Mode Control
7. Auto (Automatic Operation)
8. A/C (Air Conditioning)
9. On/Off (Power) The fan speed, air delivery mode, air
conditioning, driver and passenger
temperatures, recirculation, and Sync
settings can be controlled by touching
CLIMATE icon on the infotainment
Home Page or the climate button in
the application tray. A selection can
then be made on the front climate
control page displayed. See the
infotainment manual.
Climate Control Status Display
The climate control status display
appears briefly when the center stack
climate controls are adjusted.
Climate Control Influence on
Fuel Economy
The climate control system depends
on other vehicle systems for heat and
power input. Certain climate control
settings can lead to higher fuel usage.
The following climate control settings
use more fuel:
.MAX air conditioning mode
.Defrost mode
.Extreme temperature settings, such
as 15° C (60° F) or 32° C (90° F)
.High fan speed settings
To help reduce fuel usage:
.Use the full automatic control as
described under “Automatic
Operation.”
.Select a temperature setting that is
higher in hot weather and lower in
cold weather.
.Turn off the air conditioning when
it is not needed.
.Only use defrost to clear the
windows.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
CLIMATE CONTROLS 199
on in the selected mode button.
Multiple buttons can be selected
simultaneously.
Changing the mode cancels the
automatic operation and the system
goes into manual mode. Press AUTO
to return to automatic operation.
z:This mode clears the windows of
fog or moisture. Air is directed to the
windshield and side window vents.
The system automatically forces
outside air into the vehicle and the air
conditioning compressor will run,
unless the outside temperature is
close to freezing.
Y: Air is directed to the instrument
panel outlets.
[: Air is directed to the floor
outlets, with some to the windshield,
side window outlets, outboard panel
outlets, and second row floor outlets.
0: Press to clear the windshield of
fog or frost more quickly. Air is
directed to the windshield and the
side window outlets. The air conditioning compressor also comes
on, unless the outside temperature is
below freezing.
Do not drive the vehicle until all
windows are clear.
See
Air Vents 0200.
A/C : Press to turn the air
conditioning system on or off. An
indicator light comes on to show that
the air conditioning is enabled. If the
fan is turned off, the air conditioner
will not run. The A/C light will stay on
even if the outside temperatures are
below freezing.
@: Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the inside
of the vehicle. It can also be used to
help reduce outside air and odors that
enter the vehicle. The air conditioning
compressor also comes on when this
mode is activated.
Rear Window Defogger
The rear window defogger uses a
warming grid to remove fog from the
rear window.
K: Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.
The rear window defogger only works
when the ignition is on. The defogger
turns off if the ignition is turned to
off or ACC/ACCESSORY.
Caution
Using a razor blade or sharp object
to clear the inside rear window can
damage the rear window defogger.
Repairs would not be covered by
the vehicle warranty. Do not clear
the inside rear window with sharp
objects.
Heated Mirror : If equipped with
heated outside mirrors, the mirrors
heat to help clear fog or frost from the
surface of the mirror when the rear
window defog button is pressed. See
Heated Mirrors 025.
Remote Start Climate Control
Operation : If equipped with remote
start, the climate control system may
run when the vehicle is started
remotely. The rear defog may come on

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
202 DRIVING AND OPERATING
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 203
Distracted Driving . . . . . . . . . . . . . . . . 203
Defensive Driving . . . . . . . . . . . . . . . . 204
Impaired Driving . . . . . . . . . . . . . . . . . 204
Control of a Vehicle . . . . . . . . . . . . . . 204
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Off-Road Recovery . . . . . . . . . . . . . . . . 206
Loss of Control . . . . . . . . . . . . . . . . . . . 206
Track Events and Competitive Driving (V-Series Only) . . . . . . . . . 207
Driving on Wet Roads . . . . . . . . . . . 211
Hill and Mountain Roads . . . . . . . . 212
Winter Driving . . . . . . . . . . . . . . . . . . . . 213
If the Vehicle Is Stuck . . . . . . . . . . . 214
Vehicle Load Limits . . . . . . . . . . . . . . 214
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 218
Composite Materials . . . . . . . . . . . . . 218
Ignition Positions . . . . . . . . . . . . . . . . 219
Starting the Engine . . . . . . . . . . . . . . 220
Stop/Start System . . . . . . . . . . . . . . . . 221
Engine Heater . . . . . . . . . . . . . . . . . . . . 222 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 223
Shifting Into Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Shifting Into Park (Electronic
Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Shifting out of Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Shifting out of Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . 226
Extended Parking . . . . . . . . . . . . . . . . . 226
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 226
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . . . . . . . . 227
Automatic Transmission (Electronic Shifter) . . . . . . . . . . . . . 229
Manual Mode (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Manual Mode (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 236
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 236
Antilock Brake System (ABS) . . . . 236
Electric Parking Brake . . . . . . . . . . . . 237
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 238
Hill Start Assist (HSA) . . . . . . . . . . . 238
Automatic VehicleHold (AVH) . . . . . . . . . . . . . . . . . . . . . 239
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 239
Driver Mode Control . . . . . . . . . . . . . 241
Competitive Driving Mode . . . . . . . 246
Limited-Slip Differential . . . . . . . . . 248
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 248
Adaptive Cruise Control (Advanced) . . . . . . . . . . . . . . . . . . . . . . 251
Super Cruise . . . . . . . . . . . . . . . . . . . . . . 260
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 275
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 277
Rear Pedestrian Alert . . . . . . . . . . . . 282
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 283