2021 CADILLAC XT4 ignition

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
LIGHTING 135
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. SeeVehicle Personalization
0 120.
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 off
position and then back to the parking
lamp or headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
INFOTAINMENT SYSTEM 165
For example, tasks that take more
than one or two touches, such as a
song or artist to play from a media
device, would be supported by voice
commands. Other tasks, like adjusting
the volume or seeking up or down, are
audio features that are easily
performed by touching one or two
options, and are not supported by
voice commands.
In general there are flexible ways to
speak commands for completing the
tasks.
If your language supports it, try
stating a one-shot command, such as
“Directions to address city, state/province>.”Do not include
the ZIP code while stating the address
during the command. Another
example of a one-shot Destination
Entry command is, “Directions to
Place of Interest at .” If these
commands do not work, try saying,
“Take me to Place of Interest ”or “Find
address ”and the system will walk you
through by asking additional
questions.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
Settings0177.
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
170 INFOTAINMENT SYSTEM
Voice Recognition for the Phone
“Call ”:Initiate a call
to a stored contact. The command
may include location if the contact
has location numbers stored.
“Call At Home,” “At
Work,” “On Mobile,” or“On
Other” :Initiate a call to a stored
contact and location at home, at work,
on mobile device, or on another
phone.
“Call ” :Initiate
a call to a cell phone number of seven
digits, 10 digits, or three digit
emergency numbers.
“Pair Phone ”:Begin the Bluetooth
pairing process. Follow the
instructions on the infotainment
display.
“Redial” :Initiate a call to the last
dialed number.
“Switch Phone ”:Select a different
connected cell phone for outgoing
calls.
“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

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
180 INFOTAINMENT SYSTEM
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
installation. The system will deliver
messages indicating success or error
during and after the download and
installation processes.
Downloading Over-the-Air vehicle
software updates requires Internet
connectivity, which can be accessed
through the vehicle’s built-in 4G LTE
connection, if equipped and active.
If required, data plans are provided bya third party. Optionally, a secure
Wi-Fi hotspot such as a compatible
mobile device hotspot, home hotspot,
or public hotspot can be used.
Applicable data rates may apply.
To connect the infotainment system
to a secured mobile device hotspot,
home hotspot, or public hotspot,
touch Settings on the Home Page,
select the System tab, followed by
Wi-Fi Networks. Select the appropriate
Wi-Fi network, and follow the
on-screen prompts. Download speeds
may vary.
On most compatible mobile devices,
activation of the Wi-Fi hotspot is in
the Settings menu under Mobile
Network Sharing, Personal Hotspot,
Mobile Hotspot, or similar.
Availability of Over-the-Air software
updates varies by vehicle and country.
Features are subject to change. For
more information on this feature, see
my.cadillac.com/learn.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
INFOTAINMENT SYSTEM 185
2. Create a Personal IdentificationNumber (PIN) by choosing a
four-digit PIN. Re-enter the PIN to
confirm. To change the PIN, touch
Change PIN.
The PIN is required to:
.Register or unregister keys.
.Change Teen Driver settings.
.Change or clear the Teen
Driver PIN.
.Access or delete Report Card data.
Register keys to activate Teen
Driver and assign restrictions to
the key:
Any vehicle key can be registered, up
to a maximum of eight keys. Label the
key to tell it apart from the
other keys.
For a pushbutton start system: 1. Start the engine.
2. For automatic transmissions, the vehicle must be in P (Park). For
manual transmissions, the vehicle
must be stopped with the parking
brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver. 4. Enter the PIN.
5. Place the Remote Keyless Entry
(RKE) transmitter key you wish to
register in the transmitter pocket.
The key does not need to be the
one that started the vehicle. See
Remote Keyless Entry (RKE) System
Operation 07for transmitter
pocket location.
6. From the Teen Driver menu, touch Setup Keys..If the transmitter key has not
previously been registered, the
option to add the key displays.
Touch Setup and a confirmation
message displays. Teen Driver
restrictions will be applied
whenever this key is used to
operate the vehicle.
.If the transmitter key has
already been registered, the
option to remove the key
displays. If Remove is touched,
the transmitter key is no longer
registered. A confirmation
message displays, and Teen
Driver restrictions will not be
applied if this transmitter key is
used to operate the vehicle. In vehicles with a pushbutton start
system, if a Teen Driver and a
non-Teen Driver key are both present
at start up, the vehicle will recognize
the non-Teen Driver key to start the
vehicle. The Teen Driver settings will
not be active.
For a keyed ignition system:
1. Start the engine.
2. For automatic transmissions, the vehicle must be in P (Park). For
manual transmissions, the vehicle
must be stopped with the parking
brake set.
3. From the Settings menu, touch Vehicle and then Teen Driver.
4. Enter the PIN.
5. Touch Setup Keys. The system displays instructions for registering
or unregistering a key.
A confirmation message displays.
Manage Settings
Audio Volume Limit : Allows the
audio volume limit to be turned on or
off. Touch Set Audio Volume Limit to
choose the maximum allowable audio
volume level.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
200 CLIMATE CONTROLS
@:Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the inside
of the vehicle or to reduce the entry of
outside air and odors.
Auto Defog : The climate control
system may have a sensor to
automatically detect high humidity
inside the vehicle. When high
humidity is detected, the climate
control system may adjust to outside
air supply and turn on the air
conditioner. The fan speed may
slightly increase to help prevent
fogging. If the climate control system
does not detect possible window
fogging, it returns to normal
operation.
Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants such as pollen, odors,
and dust. If the climate control
system is on and the ionizer is
enabled, the ionizer status indicator
will be lit on the climate control
display.Rear Window Defogger
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 defogger can be turned off by
turning the ignition to off or ACC/
ACCESSORY.
The rear window defogger can be set
to automatic operation. When auto
rear defog is selected, the rear window
defogger turns on automatically when
the interior temperature is cold and
the outside temperature is about 7 °C
(44 °F) and below. The auto rear
defogger turns off automatically.
If equipped, the heated outside
mirrors turn on when the rear window
defogger button is on and help to
clear fog or frost from the surface of
the mirror. See Heated Mirrors029.
Caution
Do not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything else
(Continued)
Caution (Continued)
that is sharp. This may damage the
rear window defogger grid and
affect the radio's ability to pick up
stations clearly. The repairs would
not be covered by the vehicle
warranty.
Remote Start Climate Control
Operation : If equipped with remote
start, the climate control system may
run when the vehicle is started
remotely. If equipped with heated or
ventilated seats or a heated steering
wheel, these features may come on
during a remote start. See Remote
Vehicle Start 014, Heated and
Ventilated Front Seats 043, and Heated
Steering Wheel 091.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
DRIVING AND OPERATING 203
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . . . . . 204
Driving Environment . . . . . . . . . . . . . 204
Vehicle Design . . . . . . . . . . . . . . . . . . . . 204
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 205
Distracted Driving . . . . . . . . . . . . . . . . 205
Defensive Driving . . . . . . . . . . . . . . . . 206
Impaired Driving . . . . . . . . . . . . . . . . . 206
Control of a Vehicle . . . . . . . . . . . . . . 206
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Off-Road Recovery . . . . . . . . . . . . . . . . 207
Loss of Control . . . . . . . . . . . . . . . . . . . 208
Off-Road Driving . . . . . . . . . . . . . . . . . 208
Driving on Wet Roads . . . . . . . . . . . 212
Hill and Mountain Roads . . . . . . . . 213
Winter Driving . . . . . . . . . . . . . . . . . . . . 213
If the Vehicle Is Stuck . . . . . . . . . . . 214
Vehicle Load Limits . . . . . . . . . . . . . . 215
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 219
Ignition Positions . . . . . . . . . . . . . . . . 219
Starting the Engine . . . . . . . . . . . . . . 220
Stop/Start System . . . . . . . . . . . . . . . . 221 Engine Heater . . . . . . . . . . . . . . . . . . . . 222
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 224
Shifting Into Park . . . . . . . . . . . . . . . . 224
Shifting out of Park . . . . . . . . . . . . . . 224
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . 225
Active Fuel Management . . . . . . . . 225
Extended Parking . . . . . . . . . . . . . . . . . 225
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 226
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Automatic Transmission
Automatic Transmission . . . . . . . . . 226
Manual Mode . . . . . . . . . . . . . . . . . . . . . 231
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 232
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 232
Antilock Brake System (ABS) . . . . 232
Electric Parking Brake . . . . . . . . . . . . 233
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 234
Hill Start Assist (HSA) . . . . . . . . . . . 234
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 235 Driver Mode Control . . . . . . . . . . . . . 236
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 237
Adaptive Cruise Control
(Advanced) . . . . . . . . . . . . . . . . . . . . . . 240
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 248
Assistance Systems for Parkingor Backing . . . . . . . . . . . . . . . . . . . . . . . 250
Rear Pedestrian Alert . . . . . . . . . . . . 256
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 260
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Side Blind Zone Alert (SBZA) . . . . 263
Lane Change Alert (LCA) . . . . . . . . 263
Lane Keep Assist (LKA) . . . . . . . . . . 265
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 267
Recommended Fuel . . . . . . . . . . . . . . 267
Prohibited Fuels . . . . . . . . . . . . . . . . . . 268
Fuels in Foreign Countries . . . . . . . 268
Fuel Additives . . . . . . . . . . . . . . . . . . . . 268
Filling the Tank . . . . . . . . . . . . . . . . . . 268

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
212 DRIVING AND OPERATING
Caution
Do not drive through standing
water if it is deep enough to cover
the wheel hubs, axles, or exhaust
pipe. Deep water can damage the
axle and other vehicle parts.
If the standing water is not too deep,
drive through it slowly. At faster
speeds, water can get into the engine
and cause it to stall. Stalling can
occur if the exhaust pipe is under
water. Do not turn off the ignition
when driving through water. If the
exhaust pipe is under water, the
engine will not start. When going
through water, the brakes get wet and
it may take longer to stop. See Driving
on Wet Roads 0212.
After Off-Road Driving
Remove any brush or debris that has
collected on the underbody or chassis,
or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand, have
the brake linings cleaned and checked.
These substances can cause glazing
and uneven braking. Check the body structure, steering, suspension,
wheels, tires, and exhaust system for
damage and check the fuel lines and
cooling system for any leakage.
More frequent maintenance service is
required. See
Maintenance Schedule
0 358.
Driving on Wet Roads
Rain and wet roads can reduce vehicle
traction and affect your ability to stop
and accelerate. Always drive slower in
these types of driving conditions and
avoid driving through large puddles
and deep-standing or flowing water.
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick
stop and could cause pulling to one
side. You could lose control of the
vehicle.
After driving through a large puddle
of water or a car/vehicle wash,
lightly apply the brake pedal until
the brakes work normally.
(Continued)
Warning (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be very
cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water can
build up under the vehicle's tires so
they actually ride on the water. This
can happen if the road is wet enough
and you are going fast enough. When
the vehicle is hydroplaning, it has
little or no contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.