2021 CADILLAC XT4 audio

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
220 DRIVING AND OPERATING
Warning (Continued)
systems and disable the airbags.
While driving, only shut the vehicle
off in an emergency.
If the vehicle must be shut off in an
emergency: 1. Brake using a firm and steady pressure. Do not pump the brakes
repeatedly. This may deplete power
assist, requiring increased brake
pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the vehicle
is moving. After shifting to
N (Neutral), firmly apply the brakes
and steer the vehicle to a safe
location.
3. Come to a complete stop and shift to P (Park).
4. Set the parking brake. See Electric
Parking Brake 0233. Press ENGINE
START/STOP to turn the
vehicle off. If the vehicle cannot be pulled over
and must be shut off while driving,
press and hold ENGINE START/STOP
for longer than two seconds, or press
twice in five seconds.
ACC/ACCESSORY (Amber Indicator
Light) :
This mode allows you to use
some electrical accessories when the
engine is off.
With the ignition off, pressing
ENGINE START/STOP once without
the brake pedal applied will place the
ignition system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after 10 minutes
to prevent battery rundown.
ON/RUN/START (Green Indicator
Light) : This mode is for driving and
starting. With the ignition off and the
brake pedal applied, pressing ENGINE
START/STOP once will place the
ignition system in ON/RUN/START.
Once engine cranking begins, release
the button. Engine cranking will
continue until the engine starts. The
ignition will then remain on. See
Starting the Engine 0220. Service Mode
This mode is available to verify the
proper operation of the malfunction
indicator lamp as may be required for
emissions inspection purposes and for
service and diagnostics. See
Automatic
Transmission 0226.
With the vehicle off, and the brake
pedal not applied, pressing and
holding ENGINE START/STOP for
more than five seconds will place the
vehicle in Service Mode. The
instruments and audio systems will
operate as they do in ON/RUN, but
the vehicle will not be able to be
driven. The engine will not start in
Service Mode. Press ENGINE START/
STOP again to turn the vehicle off.
Starting the Engine
Place the transmission in the proper
gear, P (Park) or N (Neutral). To restart
the engine when the vehicle is already
moving, use N (Neutral).

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
224 DRIVING AND OPERATING
The length of time the heater should
remain plugged in depends on several
factors. Ask a dealer in the area where
you will be parking the vehicle for the
best advice on this.
Retained Accessory
Power (RAP)
When the ignition is turned from on
to off, the following features (if
equipped) will continue to function
for up to 10 minutes, or until the
driver door is opened. These features
will also work when the ignition is in
RUN or ACC/ACCESSORY:
.Infotainment System
.Power Windows (during RAP this
functionality will be lost when any
door is opened)
.Sunroof (during RAP this
functionality will be lost when any
door is opened)
.Auxiliary Power Outlet
.Audio System
.OnStar System
Shifting Into Park
To shift into P (Park):1. Hold the brake pedal down and set the parking brake. See Electric
Parking Brake 0233.
2. Press the button on top of the shift lever to shift into P (Park). See
Automatic Transmission 0226.
3. The P indicator on the shift lever will turn red when the vehicle is in
P (Park).
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the vehicle is not in
P (Park) with the parking brake set.
The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle can
(Continued)
Warning (Continued)
move suddenly. You or others could
be injured. To be sure the vehicle
will not move, even when you are
on fairly level ground, always set
the parking brake and shift to
P (Park). SeeShifting Into Park 0224
. If you are towing a trailer, see
Driving Characteristics and Towing
Tips 0271.
If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the parking
brake is set before you leave it. See
Electric Parking Brake 0233.
If you are towing a trailer and parking
on a hill, see Driving Characteristics
and Towing Tips 0271.
Shifting out of Park
This vehicle is equipped with an
electronic transmission. The shift lock
release button is designed to prevent
inadvertent shifting out of P (Park).
To shift out of P (Park):
1. Ensure the engine is running.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
388 ONSTAR
.Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an Advisor to:
.Verify account information or
update contact information.
.Get driving directions.
.Receive a Diagnostic check of the
vehicle's key operating systems.
.Receive Roadside Service.
.Manage Wi-Fi Settings, if equipped.
Press
>to get a priority connection
to an OnStar Advisor available 24/7 to:
.Get help for an emergency.
.Be a Good Samaritan or respond to
an AMBER Alert.
.Get assistance in severe weather or
other crisis situations and find
evacuation routes.
OnStar Services
Emergency
Emergency Services require an active
safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a specially trained OnStar Advisor who
is immediately connected in to the
vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and relay
important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Service, Advisors can
locate a nearby service provider to
help with a flat tire, a battery jump,
or an empty gas tank.
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
.With Remote Ignition Block,
if equipped, OnStar can block the
engine from being restarted.
.With Stolen Vehicle Slowdown,
if equipped, OnStar can work with
law enforcement to gradually slow
the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. PressQ
to set up an account.
.After change in ownership and at
90 days.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
396 INDEX
Appearance CareExterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . . . . 175
Armrest Storage . . . . . . . . . . . . . . . . . . . . . . 85
Assistance Systems for Driving . . . . 257
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 250
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Auto Stop Stop/Start System . . . . . . . . . . . . . . . . 221
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . 29
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 18
Emergency Braking (AEB) . . . . . . . . 260
Headlamp System . . . . . . . . . . . . . . . . 131
Transmission . . . . . . . . . . . . . . . . . . . . . . 226
Transmission Fluid . . . . . . . . . . . . . . . 289
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . . . . . 231
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Power Protection . . . . . . . . . . . . . . . . . . 135
Battery - North America . . . . . .297, 342
Blade Replacement, Wiper . . . . . . . . . 299
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . 170, 171
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . 150
Brake
Electric Boost . . . . . . . . . . . . . . . . . . . . . 232
Parking, Electric . . . . . . . . . . . . . . . . . . 233
System Warning Light . . . . . . . . . . . . 107
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Automatic Emergency (AEB) . . . . . 260
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 261
Break-In, New Vehicle . . . . . . . . . . . . . . 219
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . . . . . 302
Headlamp Aiming . . . . . . . . . . . . . . . . 301
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 301
Buying New Tires . . . . . . . . . . . . . . . . . . . 325
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 282
California Proposition 65 Warning . . . . . . . . . . . . .282, 297, 342, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 1
Capacities and Specifications . . . . . . 371
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 226
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Winter Driving . . . . . . . . . . . . . . . . . . . . 213
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Caution, Danger, and Warning . . . . . . . . 2
Center Console Storage . . . . . . . . . . . . . . 86
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 328
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Charging System Light . . . . . . . . . . . . . 105
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 105
Child Restraints Infants and Young Children . . . . . . . 67