2019 CADILLAC CT6 alarm

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
IN BRIEF 9
If equipped, pressKto unlock the
fuel door.
Press
Qto lock all doors.
If equipped, press
Qto lock the
fuel door.
Lock and unlock feedback can be
personalized. See Vehicle
Personalization 0157.
Press
Xtwice quickly to open the
trunk.
Press
7and release to initiate vehicle
locator.
Press and hold
7for more than
three seconds to sound the panic
alarm.
Press
7again to cancel the panic
alarm.
See Keys 028 and
Remote Keyless Entry (RKE) System
Operation 029.
Remote Vehicle Start
The engine can be started from
outside of the vehicle.
Starting the Vehicle
1. Press and releaseQon the RKE
transmitter.
2. Immediately, press and hold
/
for at least four seconds or until
the turn signal lamps flash.
3. Start the vehicle normally after entering.
When the vehicle starts, the parking
lamps will turn on.
Remote start can be extended.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
. Press and hold
/until the
parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then off.
See Remote Vehicle Start 036.
Door Locks
Keyless Access
Press the button on the door handle
and pull the handle when the Remote
Keyless Entry (RKE) transmitter is
within 1 m (3 ft). See Remote Keyless
Entry (RKE) System Operation 029.
Manual Operation
From outside, use the key in the
driver door. The key lock cylinder is
covered by a cap. See Door Locks038.
From the inside rear doors, push down
on the door lock knob on top of the
door. To unlock a door, pull once on
the door handle to unlock it, and
again to open it.
Power Door Locks
From outside, pressQorKon the
RKE transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
28 KEYS, DOORS, AND WINDOWS
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . . . . . 36
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Door Locks . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . . . . 40
Automatic Door Locks . . . . . . . . . . . . 40
Lockout Protection . . . . . . . . . . . . . . . . 41
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 41
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 49
Vehicle Alarm System . . . . . . . . . . . . . 49
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 51
Immobilizer Operation . . . . . . . . . . . . 51
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 52
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 52 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 53
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 53
Automatic Dimming Mirror . . . . . . . 53
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 53
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 54
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Rear Camera Mirror . . . . . . . . . . . . . . . 54
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Power Windows . . . . . . . . . . . . . . . . . . . . 57
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Rear Window Sunshade . . . . . . . . . . . 59
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE)
transmitter 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 RKE transmitter
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 an RKE
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
30 KEYS, DOORS, AND WINDOWS
Q:Press to lock all doors and the
fuel door, if equipped. The turn signal
indicators may flash and/or the horn
may sound on the second press to
indicate locking. See Vehicle
Personalization 0157.
If the driver door is open when
Qis
pressed and Open Door Anti-Lockout
is enabled through vehicle
personalization, all doors will lock and
then the driver door will immediately
unlock. See Vehicle Personalization
0 157. If the passenger door is open
when
Qis pressed, all doors lock. Pressing
Qmay also arm the alarm
system. See Vehicle Alarm System 049.
If equipped with remote mirror
folding, pressing and holding
Qfor
one second will fold the mirrors,
if enabled. See Vehicle Personalization
0 157.
K:Press to unlock the driver door
and the fuel door, if equipped. Press
Kagain within five seconds to unlock
all doors. The RKE transmitter can be
programmed to unlock all doors on
the first button press. See Vehicle
Personalization 0157.
Lock and unlock feedback can be
personalized. See Vehicle
Personalization 0157. When remotely
unlocking the vehicle at night, the
headlamps and back-up lamps will
come on for about 30 seconds to light
your approach to the vehicle. The turn
signal indicators may flash to indicate
unlocking.
Pressing
Kwill disarm the alarm
system. See Vehicle Alarm System 049. If equipped with remote mirror
folding, pressing and holding
Kfor
one second will unfold the mirrors,
if enabled. See Vehicle Personalization
0 157.
Press and hold
Kuntil the windows
fully open. Windows will not operate
unless remote window operation is
enabled. See Vehicle Personalization
0 157.
/:Press and releaseQand then
immediately press and hold
/for at
least four seconds to start the engine
from outside the vehicle using the
RKE transmitter. See Remote Vehicle
Start 036.
7:Press and release one time to
initiate vehicle locator. The exterior
lamps flash and the horn chirps three
times. Press and hold
7for more
than three seconds to sound the panic
alarm. The horn sounds and the turn

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
32 KEYS, DOORS, AND WINDOWS
Disabling Keyless Unlocking:
With the vehicle off, press and hold
Q
andKon the RKE transmitter 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 trunk 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.
Enabling Keyless Unlocking:
With the vehicle off, press and hold
Q
andKon the RKE transmitter at the
same time for approximately
three seconds. The turn signal lamps
will flash twice quickly to indicate
access is enabled.
Passive Locking
The Keyless Access system will lock
the vehicle several seconds after all
doors are closed if the vehicle is off
and at least one transmitter has been
removed or none remain in the
vehicle. The fuel door will also lock.
If other electronic devices interfere
with the RKE transmitter signal, the
vehicle may not detect the RKE
transmitter inside the vehicle.
If passive locking is enabled, the doors
may lock with the RKE transmitter
inside the vehicle. Do not leave the
RKE transmitter in an unattended
vehicle.
To customize the doors to
automatically lock when exiting the
vehicle, see
Vehicle Personalization
0 157.
Temporary Disable of Passive
Locking
Temporarily disable passive locking by
pressing and holding
Kon the
interior door switch with a door open
for at least four seconds, or until three
chimes are heard. Passive locking will
then remain disabled until
Qon the
interior door is pressed, or until the
vehicle is turned on. Remote Left In Vehicle Alert
When the vehicle is turned off and an
RKE transmitter is left in the vehicle,
the horn will chirp three times after
all doors are closed. To turn on or off
see
Vehicle Personalization 0157.
Remote No Longer in Vehicle Alert
If the vehicle is on with a door open,
and then all doors are closed, the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is not detected, the Driver
Information Center (DIC) will display
NO REMOTE DETECTED and the horn
will chirp three times. This occurs
only once each time the vehicle is
driven. To turn on or off, see Vehicle
Personalization 0157.
Keyless Trunk Opening
To open the trunk, press the touch
pad on the rear of the trunk above the
license plate. The doors must be
unlocked or the RKE transmitter must
be within 1 m (3 ft).

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 49
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 trunk is open.
Slow Flash : Alarm system is armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of
three ways:
.Use the RKE transmitter.
. Use the Keyless Access
system.
. With a door open, press
Q
on the interior of the door.
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
Q
on the RKE transmitter 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 RKE
transmitter, 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 RKE transmitter
during the 10-second pre-alarm, the
alarm will be activated.
The alarm will also be activated if a
passenger door, the trunk, 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 the next unauthorized event.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated:
. Press
Kon the RKE transmitter.
. Unlock the vehicle using the
Keyless Access system.
. Start the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
50 KEYS, DOORS, AND WINDOWS
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
RKE transmitter 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 on the RKE
transmitter and the horn chirps and
the lights flash three times, a previous
alarm occurred while the system was
armed.
If the alarm has been activated, a
message will appear on the Driver
Information Center (DIC).
Power Sounder, Inclination
Sensor, and Intrusion Sensor
In addition to the standard
theft-deterrent system features, this
system may also have a power
sounder, inclination sensor, and
intrusion sensor.
The power sounder provides an
audible alarm, which is distinct from
the vehicle’s horn. It has its own
power source, and can sound an alarm
if 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 activate the
alarm if it senses 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
sunshades.
. Make sure there are no
obstructions blocking the sensors
in the front overhead console.
Inclination and Intrusion
Sensors Disable Switch
It is recommended that the intrusion
and inclination sensors be deactivated
if pets are left in the vehicle or if the
vehicle is being transported.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 51
With the vehicle turned off, presso
in the front overhead console. The
indicator light will come on
momentarily, indicating that these
sensors have been disabled for the
next alarm system arming cycle.
Immobilizer
SeeRadio Frequency Statement 0411.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed. The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the vehicle is started
or the ignition is in ACC/ACCESSORY
and a valid transmitter is present in
the vehicle.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched RKE
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, on, off), and
the RKE transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console. See
Remote Keyless Entry (RKE) System
Operation
029.
If the ignition modes will not change
with the other transmitter or with the
transmitter in the transmitter pocket,
your vehicle needs service. If the
ignition does change modes, the first
transmitter may be faulty. See your
dealer.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
416 ONSTAR
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. Press
Q
to 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, Roadside Assistance, and
Hands-Free Calling are available on
most vehicles. Not all OnStar services
are available everywhere or on all
vehicles. For more information, a full
description of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.
. Press
Qto speak with an Advisor.