2023 CADILLAC XT6 alarm

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
8 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Key . . . . . . . . . . . . . . . . . . . . . 9
Remote Key Operation . . . . . . 9
Remote Vehicle Start . . . . . . . 19
Door Locks . . . . . . . . . . . . . . . . . . . . 20
Power Door Locks . . . . . . . . . . 23
Delayed Locking . . . . . . . . . . . . . 23
Automatic Door Locks . . . . . 23
Lockout Protection . . . . . . . . . 24
Safety Locks . . . . . . . . . . . . . . . . . 24
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 25
Vehicle Security
Vehicle Security . . . . . . . . . . . . . 33
Vehicle Alarm System . . . . . . 33
Steering Column Lock . . . . . 35
Immobilizer . . . . . . . . . . . . . . . . . . . . 35
Immobilizer Operation . . . . . 35
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 37
Power Mirrors . . . . . . . . . . . . . . . . 37
Folding Mirrors . . . . . . . . . . . . . . . 37
Heated Mirrors . . . . . . . . . . . . . . 38Automatic Dimming
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reverse Tilt Mirrors . . . . . . . . 38
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 39
Automatic Dimming Rearview Mirror . . . . . . . . . . . . 39
Rear Camera Mirror . . . . . . . . 39
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 41
Power Windows . . . . . . . . . . . . . 42
Sun Visors . . . . . . . . . . . . . . . . . . . . . 44
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 44
Keys and Locks
Keys
{Warning
Leaving children in a vehicle
with a remote key is
dangerous and children or
others could be seriously
injured or killed. They could
operate the power windows
or other controls or make
the vehicle move. The
windows will function with
the remote key in the
vehicle, and children or
others could be caught in
the path of a closing
window. Do not leave
children in a vehicle with a
remote key.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
10 Keys, Doors, and Windows
Q:Press to lock all doors and
if equipped, the fuel door. The
turn signal indicators may
flash and/or the horn may
sound on the second press to
indicate locking. To view
available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”.
If the driver door is open when
Qis pressed and Open Door
Anti-Lockout is enabled, all
doors will lock and then the driver door will immediately
unlock. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select
“Vehicle” to display the
list of available options and
select “Power Door Locks”. f
the passenger door is open
when
Qis pressed, all
doors lock.
Pressing
Qmay also arm the
theft-deterrent system. See
Vehicle Alarm System 033.
If equipped with remote
folding mirrors, press and hold
Qfor one second to fold the
mirrors, if enabled. To view
available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Comfort
and Convenience”.
K: Press to unlock the driver
door and if equipped, the fuel
door. Press unlock again within five seconds to unlock
all doors. The remote key can
be programmed to unlock all
doors on the first button
press.To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select
“Vehicle” to display the
list of available options and
select “Remote Lock, Unlock,
Start”. The turn signal
indicators may flash to
indicate unlocking.To view
available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”. When
remotely unlocking the vehicle
at night, the lights come on
briefly to light your approach
to the vehicle.
Pressing
Kwill disarm the
theft-deterrent system. See
Vehicle Alarm System 033.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
Keys, Doors, and Windows 11
If equipped with remote
folding mirrors, press and hold
Kfor one second to unfold the
mirrors, if enabled. To view
available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Comfort
and Convenience”.
If equipped with remote
windows, press and hold
K
until the windows fully open,
if enabled. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select “Vehicle” to display the
list of available options and
select “Remote Lock, Unlock,
Start”.
/: Press and releaseQand
then immediately press and
hold
/for at least
four seconds to start the
engine from outside the
vehicle using the remote key.
See Remote Vehicle Start 019.
7:Press and release one time
to initiate vehicle locator. The
exterior lamps flash and the
horn chirps three times. Press
and hold
7for three seconds
to sound the panic alarm. The
horn sounds and the turn
signal lamps flash for
30 seconds, or until
7is
pressed again or the vehicle is
started.
b: Press twice quickly to
open or close the liftgate.
Press once to stop the liftgate
from moving.
Keyless Access Operation
With the Keyless Access
system, you can lock and
unlock the doors and access
the liftgate without removing
the remote key from your
pocket, purse, briefcase, etc.
The remote key should be
within 1 m (3 ft) of the liftgate
or door being opened. Keyless Access can be
programmed to unlock all
doors on the first lock/unlock
press from the driver door.
Keyless unlocking can also be
turned off. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select
“Vehicle” to display the
list of available options and
select “Remote Lock, Unlock,
Start”.
If equipped with memory
seats, remote keys 1 and 2 are
linked to seating positions of
memory 1 or 2. See Memory
Seats 050.
Keyless Unlocking/Locking
from the Driver Door
When the doors are locked
and the remote key is within
1 m (3 ft) of the driver door
handle, pressing the lock/
unlock button on the driver
door handle will unlock the
driver door. If the lock/unlock

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
12 Keys, Doors, and Windows
button is pressed again within
five seconds, all passenger
doors will unlock.
Driver Shown, PassengerSimilar
Pressing the lock/unlock
button will cause all doors to
lock if any of the following
occur:
.It has been no more than
five seconds since the first
lock/unlock button press.
.Two lock/unlock button
presses were used to unlock
all doors.
.Any vehicle door has opened
and all doors are now closed.
Keyless Unlocking/Locking
from Passenger Doors
When the doors are locked
and the remote key is within
1 m (3 ft) of the door handle,
pressing the lock/unlock
button on that door handle will
unlock all doors. Pressing the
lock/unlock button will cause
all doors to lock if any of the
following occur:
.The lock/unlock button was
used to unlock all doors.
.Any vehicle door has opened
and all doors are now closed.
Disable/Enable Keyless
Unlocking of Exterior Door
Handles and Liftgate
If equipped, keyless unlocking
of the exterior door handles
and liftgate can be disabled
and enabled. Disabling Keyless Unlocking:
With the vehicle off, press and
hold
QandKon the remote
key at the same time for
approximately three seconds.
The turn signal lamps will flash
four times quickly to indicate
access is disabled. Using any
exterior handle to unlock the
doors or open the liftgate will
cause the turn signal lamps to
flash four times quickly,
indicating access is disabled.
If disabled, disarm the alarm
system before starting the
vehicle.
Disabling Keyless Unlocking
may also be configured under
vehicle settings. To view
available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
Keys, Doors, and Windows 33
Vehicle Security
This vehicle has
theft-deterrent features;
however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft
alarm system.
The indicator light, on the
instrument panel near the
windshield, indicates the
status of the system.
Off :Alarm system is
disarmed. On Solid :
Vehicle is secured
during the delay to arm the
system.
Fast Flash : Vehicle is
unsecured. A door, the hood,
or the liftgate is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Close the liftgate and the hood. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the remote key.
.Use the Keyless Access
system.
.With a door open, press
the inside
Q.
3. After 30 seconds the alarm system will arm, and
the indicator light will begin
to slowly flash indicating
the alarm system is
operating. Pressing
Qon
the remote key a second
time will bypass the 30-second delay and
immediately arm the alarm
system.
The vehicle alarm system will
not arm if the doors are locked
with the key.
If the driver door is opened
without first unlocking with
the remote key, the horn will
chirp and the lights will flash
to indicate pre-alarm. If the
vehicle is not started, or the
door is not unlocked by
pressing
Kon the remote key
during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be
activated if a passenger door,
the liftgate, or the hood is
opened without first disarming
the system. When the alarm is
activated, the turn signals
flash and the horn sounds for
about 30 seconds. The alarm
system will then re-arm to
monitor for the next
unauthorized event.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
34 Keys, Doors, and Windows
Disarming the Alarm
System
To disarm the alarm system or
turn off the alarm if it has
been activated:
.PressKon the remote key.
.Unlock the vehicle using the
Keyless Access system.
.Start the vehicle.
To avoid setting off the alarm
by accident:
.Lock the vehicle after all
occupants have left the
vehicle and all doors are
closed.
.Always unlock a door with
the remote key or use the
Keyless Access system.
Unlocking the driver door with
the key will not disarm the
system or turn off the alarm.
How to Detect a Tamper
Condition
IfKis pressed and the horn
chirps and the lights flash
three times, the alarm was
activated while the alarm
system was armed.
If the alarm system has been
activated, a message will
appear on the DIC.
Power Sounder,
Inclination Sensor, and
Intrusion Sensor
In addition to the standard
theft-deterrent system
features, this system may also
have an inclination sensor, an
intrusion sensor, and power
sounder.
The power sounder provides
an audible alarm that is
different from the vehicle’s
horn. It has its own power
source, and can sound an
alarm when the vehicle’s
battery is compromised. The inclination sensor can set
off the alarm if it senses
movement of the vehicle, such
as a change in vehicle
orientation.
The intrusion sensor monitors
the vehicle interior, and can
set off the alarm if it senses
an unauthorized entry into the
vehicle’s interior. Do not allow
passengers or pets to remain
in the vehicle when the
intrusion sensor is activated.
Before arming the
theft-deterrent system and
activating the intrusion sensor:
.Make sure all doors and
windows are completely
closed.
.Secure any loose items such
as a sunshades.
.Make sure there are no
obstructions blocking the
sensors in the front
overhead console.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/23/22
Keys, Doors, and Windows 35
Inclination and Intrusion
Sensors Disable Switch
It is recommended that the
inclination and intrusion
sensors be deactivated if pets
are left in the vehicle or if the
vehicle is being transported.
With the vehicle turned off,
press
oin the overhead
console. The indicator light will
come on momentarily,
indicating that the sensor has
been disabled until the next
time the alarm system is
armed.
Steering Column Lock
If equipped, the steering
column lock is a
theft-deterrent device. This
feature locks the steering
column when the vehicle is
turned off and the driver door
is opened, or when the driver
door is opened and then the
vehicle is turned off. The
steering column unlocks when
the vehicle is turned on. The Driver Information Center
(DIC) may display one of these
messages:
.A message to service the
steering column lock
indicates that an issue has
been detected with the
column lock feature and the
vehicle should be serviced.
.A message that the steering
column is locked indicates
that the engine is running,
but the steering column is
still locked. It is normal for
the column to be locked
during a remote start, but
the column should unlock
after the brake pedal is
pressed and the vehicle is
started. No message will
display during a remote
start.
.A message that the steering
wheel must be turned and
the vehicle must be started
again indicates that the
column lock mechanism is
bound, the column locking
device was unable to unlock
the steering column, and thevehicle did not start. If this
happens, immediately turn
the steering wheel from side
to side to unbind the column
lock. If this does not unlock
the steering column, turn the
vehicle off and open the
driver door to reset the
system. Then turn the
vehicle on and immediately
turn the steering wheel side
to side for about 15 seconds.
In some cases, it may take
significant force to unbind
the column.
To keep the steering column
from binding, straighten the
front wheels before turning
off the vehicle.
Immobilizer
See Radio Frequency
Statement 0477.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
484 OnStar
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 vehicle 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 besent. 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.
Press
Qto set up an
account.
.After change in ownership
and at 90 days.
Transferring Service
PressQto request account
transfer eligibility information.
The Advisor can cancel or
change account information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately
to terminate your OnStar or
connected services if the
vehicle is disposed of, sold,
transferred, or if the
lease ends.
Reactivation for
Subsequent Owners
PressQand follow the
prompts to speak to an
Advisor as soon as possible.
The Advisor will update vehicle
records and explain OnStar or
connected service options.
How OnStar Service
Works
Automatic Crash Response,
Emergency Services, Crisis
Assist, Stolen Vehicle
Assistance, Remote Services,
and Roadside Service are
available on most vehicles. Not
all OnStar services are
available everywhere or on all