instrument cluster CADILLAC CT4 2021 Owner's Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
LIGHTING 129
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it is
light outside when the vehicle leaves
the garage, there is a slight delay
before the automatic headlamp
system turns off the headlamps.
During that delay, the instrument
cluster may not be as bright as usual.
Make sure the instrument panel
brightness control is in the full bright
position. SeeInstrument Panel
Illumination Control 0130.
When it is bright enough outside, the
headlamps will turn off.
The automatic headlamp system turns
off when the exterior lamp control is
turned to
Oor the ignition is off. For
vehicles sold in Canada, this control
only works when the transmission is
in P (Park).
Lights On with Wipers
If the windshield wipers are activated
in daylight with the engine on, and
the exterior lamp control is in AUTO,
the headlamps, parking lamps, and
other exterior lamps come on. The
transition time for the lamps coming on varies based on wiper speed. When
the wipers are not operating, these
lamps turn off. Move the exterior
lamp control to
Oor;to disable
this feature.
Hazard Warning Flashers
|: Press this button to make the
front and rear turn signal lamps flash
on and off. Release the button for at
least one second and press again to
turn the flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change
Signals
Move the lever all the way up or down
to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the turn
signal flashes three times.
The turn and lane-change signal can
be turned off manually by moving the
lever back to its original position.

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 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
164 INFOTAINMENT SYSTEM
Hybrid Speech Recognition
If equipped, this feature helps
distinguish words by using
Internet-based information along with
the system’s voice recognition
database. This allows you to speak
more naturally when using voice
recognition.
Using Voice Recognition
Voice recognition becomes available
once the system has been initialized.
This begins when the ignition is
turned on. Initialization may take a
few moments.1. Press
gon the steering wheel
controls to activate voice
recognition.
2. The audio system mutes and the system plays a prompt.
3. Clearly speak one of the commands described in this section.
A voice recognition system prompt
can be interrupted while it is
playing by pressing
gagain.
Once voice recognition is started, both
the infotainment display and
instrument cluster show the selections and visual dialog content. These
displays can be turned on or off in the
Tutorial Mode under
Settings0176.
There are three voice prompt modes
supported:
.Informative verbal prompts: This
type of prompt will provide more
information regarding the supported
actions.
.Short prompts: This type of prompt
will provide simple instructions
about what can be stated.
.Auto informative prompts: This type
of prompt plays during the first few
speech sessions, then automatically
switches to the short prompt after
some experience has been gained
through using the system.
If a command is not spoken, the voice
recognition system says a help
prompt.
Prompts and Infotainment Displays
While a voice recognition session is
active, there may be corresponding
options showing on the displays.
A selection can be made by manually
touching the option, or by speaking
the number for the option to select. Manual interaction in the voice
recognition session is permitted.
Interaction during a voice session may
be completed entirely using voice
commands while some manual
commands may expedite a task. If a
selection is made using a manual
control, the voice recognition dialog
will progress in the same way as if the
selection were made using a voice
command. Once the system completes
the task, or the session is terminated,
the voice recognition dialog stops.
An example of this type of manual
intervention is touching an entry of a
displayed number list instead of
speaking the number associated with
the entry desired.
Canceling Voice Recognition
.Touch or say
“Cancel”or“Exit ”to
terminate the voice recognition
session and show the display where
voice recognition was initiated.
.Pression the steering wheel
controls to terminate the voice
recognition session and show the
display where voice recognition was
initiated.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
182 INFOTAINMENT SYSTEM
.Air Quality Sensor: This setting
switches the system into
Recirculation Mode based on the
quality of the outside air.
Touch Off, Low Sensitivity, or High
Sensitivity.
.Auto Cooled Seats: This setting
automatically turns on and
regulates the ventilated seats when
the cabin temperature is warm.
Touch the controls on the
infotainment display to disable or
enable.
.Auto Heated Seats: This setting
automatically turns on and
regulates the heated seats when the
cabin temperature is cool. The auto
heated seats can be turned off by
using the heated seat controls on
the center stack.
Touch the controls on the
infotainment display to disable or
enable.
.Auto Defog: This setting
automatically turns the front
defogger on when the vehicle engine
is started.Touch the controls on the
infotainment display to disable or
enable.
.Auto Rear Defog: This setting
automatically turns the rear
defogger on when the vehicle engine
is started.
Touch the controls on the
infotainment display to disable or
enable.
.Ionizer: This setting purifies the air
in the interior of the vehicle..
Touch the controls on the
infotainment display to disable or
enable.
Navigation
Touch and the following may display:
.Destination Card Preferences
.Map Preferences
.Route Preferences
.Navigation Voice Control
.Traffic Preferences
.Alert Preferences
.Fuel Grade Preferences
.Manage History
.Predictive Navigation (if equipped)
.About See
Using the Navigation System 0150.
Phone
Touch and the following may display:
.My Number: Displays the cell phone
number of the Bluetooth connected
device.
.Active Call View: Shows active call
display when answering a call.
Touch the controls on the
infotainment display to disable or
enable.
.Privacy: Only show call alerts in the
instrument cluster.
Touch Off or On.
.Sort Contacts: Touch to sort by first
or last name.
.Re-sync Device Contacts: Allows the
device contacts to re-sync if you are
having difficulty accessing all of the
contacts on your cell phone.
.Delete All Vehicle Contacts: Touch
to delete all vehicle stored contacts.
.OnStar Phone TTY Mode: This
enables OnStar cell phone
TTY mode.
Touch Disable or Enable.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
186 INFOTAINMENT SYSTEM
.Super Cruise, if equipped, is not
available.
.Enhanced Low Fuel Warning (if
equipped)–When the vehicle is low
on fuel, the low fuel light on the
instrument cluster flashes and the
DIC low fuel warning cannot be
dismissed.
.Do not tow a trailer.
Report Card
The vehicle owner must secure the
driver’s consent to record certain
vehicle data when the vehicle is driven
with a registered Teen Driver key.
There is one Report Card per vehicle.
Data is only recorded when a
registered Teen Driver key is used to
operate the vehicle.
The Report Card data is collected from
the time Teen Driver is activated or
the last time the Report Card was
reset. The following items may be
recorded:
.Distance Driven –the total distance
driven.
.Maximum Speed –the maximum
vehicle speed detected.
.Overspeed Warnings –the number
of times the speed warning setting
was exceeded.
.Wide Open Throttle –the number
of times the accelerator pedal was
pressed nearly all the way down.
.Forward Collision Alerts –the
number of times the driver was
notified when approaching a vehicle
ahead too quickly and at potential
risk for a crash.
.Forward Automatic Braking, also
called Automatic Emergency
Braking (if equipped) –the number
of times the vehicle detected that a
forward collision was imminent and
applied the brakes.
.Reverse Automatic Braking (if
equipped) –the number of times
the vehicle detected that a rearward
collision was imminent and applied
the brakes.
.Traction Control –the number of
times the Traction Control System
activated to reduce wheel spin or
loss of traction.
.Stability Control –the number of
events which required the use of
electronic stability control.
.Antilock Braking System Active –
The number of Antilock Brake
System activations.
.Tailgating Alerts –the number of
times the driver was alerted for
following a vehicle ahead too
closely.
Report Card Data
Cumulative Data is saved for all trips
until the Report Card is reset or until
the maximum count is exceeded.
If the maximum count is exceeded for
a Report Card line item, that item will
no longer be updated in the Report
Card until it is reset. Each item will
report a maximum of 1,000 counts.
The distance driven will report a
maximum of 64,374 km (40,000 mi).
To delete Report Card data, do one of
the following:
.From the Report Card display, touch
Reset.
.Touch Clear All Teen Keys and PIN
from the Teen Driver menu. This
will also unregister any Teen Driver
keys and delete the PIN.
Forgotten PIN
See your dealer to reset the PIN.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
234 DRIVING AND OPERATING
Caution
Spinning the tires or holding the
vehicle in one place on a hill using
only the accelerator pedal may
damage the transmission. The
repair will not be covered by the
vehicle warranty. If the vehicle is
stuck, do not spin the tires. When
stopping on a hill, use the brakes to
hold the vehicle in place.
Manual Mode (Mechanical
Shifter)
Tap ShiftCaution
Driving with the engine at a high
rpm without upshifting while using
Tap Shift, could damage the vehicle.
Always upshift when necessary
while using Tap Shift.
Vehicles with Tap Shift have controls
on the back of the steering wheel to
manually shift the automatic
transmission.
To enter Permanent Tap Shift Mode:1. Move the shift lever from D (Drive) to M (Manual Mode). While in Tap
Shift Mode, the M on the
instrument cluster will become
highlighted, and the current gear is
indicated.
2. Tap the left control to downshift, and the right control to upshift. To
shift to the lowest available gear,
press and hold the left control. 3. To exit, move the shift lever back
to D (Drive).
With the shift lever in D (Drive) and
not in Permanent Tap Shift Mode, the
tap shift controls will activate a
temporary tap manual shift mode,
allowing the transmission to be
manually shifted. While in Temporary
Tap Shift Mode, the D on the
instrument cluster will be highlighted
and the current gear shown.
Automatic shifts return after no
manual shifts have been done for
seven to 10 seconds. The Temporary
Tap Shift Mode can also be
deactivated by holding the right
upshift control briefly.
While using Tap Shift, the vehicle will
have firmer, quicker shifting. You can
use this for sport driving or when
climbing or descending hills, to stay in
gear longer, or to downshift for more
power or engine braking.
The transmission will only allow you
to shift into gears appropriate for the
vehicle speed and engine revolutions
per minute (rpm). The transmission
will not automatically shift to the next

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
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DRIVING AND OPERATING 235
lower gear if the engine rpm is too
high, nor to the next higher gear when
the maximum engine rpm is reached.
If shifting is prevented for any reason,
a SHIFT DENIED message will be
displayed in the instrument cluster.
When accelerating the vehicle from a
stop in snowy and icy conditions, it is
suggested to shift into second gear.
A higher gear allows the vehicle to
gain more traction on slippery
surfaces.
Manual Mode (Electronic
Shifter)
Tap ShiftCaution
Driving with the engine at a high
rpm without upshifting while using
Tap Shift, could damage the vehicle.
Always upshift when necessary
while using Tap Shift.
If equipped, vehicles with Tap Shift
have controls on the back of the
steering wheel to manually shift the
automatic transmission.
Permanent Tap Shift Mode
To enter Permanent Tap Shift Mode:1. With the vehicle in D (Drive), pull back on the shift lever to activate
M (Manual Mode). The M in the
shift pattern will illuminate in red,
and the D will switch to white.
While in Permanent Tap Shift
Mode, the M on the instrument
cluster will be highlighted and the
current gear shown. 2. After releasing the shift lever, it
will return to the center position.
3. Pull the control toward you to shift. Pull the left control to
downshift, and the right control to
upshift. To shift to the lowest
available gear, pull and hold the
left control.
To exit Permanent Tap Shift Mode: 1. To exit M (Manual Mode) and return to D (Drive), pull back on
the shift lever. The D in the shift
pattern will illuminate in red, and
the M will switch to white.
2. After releasing the shift lever, it will return to the center position.
M (Manual Mode) can be exited to
return to D (Drive) at any speed by
pulling the lever rearward from the
center position. It is not necessary to
stop the vehicle or shift to N (Neutral)
or P (Park) prior to shifting back to
D (Drive).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
236 DRIVING AND OPERATING
Temporary Tap Shift Mode
To enter Temporary Tap Shift Mode:1. With the transmission in D (Drive) and not in Permanent Tap Shift
Mode, the Tap Shift controls will
activate a Temporary Tap Shift
Mode, allowing the transmission to
be manually shifted. While in
Temporary Tap Shift Mode, the D
on the instrument cluster will be
highlighted and the current gear
shown.
2. To shift to the lowest available gear, press and hold the left
control.
3. To deactivate, hold the right control briefly. Automatic shifts
return after no manual shifts have
been done for seven to 10 seconds.
While using Tap Shift, the vehicle will
have firmer, quicker shifting. This can
be used for sport driving or when
climbing or descending hills, to stay in
gear longer, or to downshift for more
power or engine braking.
The transmission will only allow
shifting into gears appropriate for the
vehicle speed and engine revolutions per minute (rpm). If shifting is
prevented for any reason, the M or D
will flash in the instrument cluster.
The transmission will not
automatically shift to the next higher
gear if the engine rpm is too high.
It will only automatically shift to the
next lower gear if the engine rpm is
much too low.
Drive Systems
All-Wheel Drive
Vehicles with this feature always send
engine power to all four wheels. It is
fully automatic, and adjusts itself as
needed for road conditions.
Brakes
Electric Brake Boost
Vehicles equipped with electric brake
boost have hydraulic brake circuits
that are electronically controlled when
the brake pedal is applied during
normal operation. The system
performs routine tests and turns off
within a few minutes after the vehicle
is turned off. Noise may be heardduring this time. If the brake pedal is
pressed during the tests or when the
electric brake boost system is off, a
noticeable change in pedal force and
travel may be felt. This is normal.
Antilock Brake
System (ABS)
The Antilock Brake System (ABS)
helps prevent a braking skid and
maintain steering while braking hard.
If there is a problem with ABS, this
warning light stays on. See
Antilock
Brake System (ABS) Warning Light
0 100.
ABS does not change the time needed
to get a foot on the brake pedal and
does not always decrease stopping
distance. If you get too close to the
vehicle ahead, there will not be
enough time to apply the brakes if

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
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240 DRIVING AND OPERATING
braking pressure at any one of the
vehicle's brakes to help steer the
vehicle in the intended direction.
If cruise control is being used and TCS
or StabiliTrak/ESC begins to limit
wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road conditions
allow.
Both systems come on automatically
when the vehicle is started and begins
to move. The systems may be heard or
felt while they are operating or while
performing diagnostic checks. This is
normal and does not mean there is a
problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but It may be necessary to
turn TCS off if the vehicle gets stuck
in sand, mud, ice, or snow. SeeIf the
Vehicle Is Stuck 0214 and “Turning
the Systems Off and On ”later in this
section.
The indicator light for both systems is
in the instrument cluster. This
light will:
.Flash when TCS is limiting
wheel spin.
.Flash when StabiliTrak/ESC is
activated.
.Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message may display in the
Driver Information Center (DIC), and
dcomes on and stays on to indicate
that the system is inactive and is not
assisting the driver in maintaining
control. The vehicle is safe to drive,
but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle. 2. Turn the engine off and wait
15 seconds.
3. Start the engine.
Drive the vehicle. if
dcomes on and
stays on, the vehicle may need more
time to diagnose the problem. If the
condition persists, see your dealer.
Turning the Systems Off and On
Caution
Do not repeatedly brake or
accelerate heavily when TCS is off.
The vehicle driveline could be
damaged.