
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
6 INTRODUCTION
1.Air Vents 0169.
2. Exterior Lamp Controls 0149.
Turn Signal Lever. See Turn and
Lane-Change Signals 0153.
3. Tap Shift Controls (If Equipped). See Manual Mode 0197.
4. Instrument Cluster (Base Level)
0110 or
Instrument Cluster (Uplevel) 0113.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) 0132.
5. Windshield Wiper/Washer 0104.
6. ENGINE START/STOP Button. See Ignition Positions 0183.
7. Park Assist Button. See Assistance Systems for Parking or
Backing 0235.
Automatic Parking Assist (APA)
Button (If Equipped). See
Assistance Systems for Parking or
Backing 0235.
Automatic Engine Stop/Start
Disable Switch (If Equipped). See
Stop/Start System 0186. 8. Light Sensor. See
Automatic
Headlamp System 0152.
9. Hazard Warning Flashers 0152.
Glove Box Button. See Glove Box
0 98.
10. Infotainment 0157.
11. Heated and Ventilated Front Seats
051 (If Equipped).
12. Wireless Charging 0107.
13. Automatic Climate Control System
(Dual Zone) 0158 or
Automatic Climate Control System
(Quad Zone) 0163.
14. Automatic Vehicle Hold (AVH)
0202 (If Equipped).
MODE Button. See Driver Mode
Control 0204.
Traction Control/Electronic
Stability Control 0203.
15. Infotainment Control Knob. See the infotainment manual.
16. Shift Lever. See Automatic
Transmission 0193. 17. Driver Information Center (DIC)
Controls. See Driver Information
Center (DIC) 0132.
18. Steering Wheel Controls. See the infotainment manual.
19. Horn 0104.
20. Steering Wheel Adjustment 0103
(Out of View).
21. Forward Collision Alert (FCA)
System 0244 (If Equipped).
Lane Keep Assist (LKA) 0254 (If
Equipped).
Heated Steering Wheel 0103 (If
Equipped).
22. Cruise Control 0209.
Adaptive Cruise Control 0211 (If
Equipped).
Super Cruise 0220 (If Equipped).
Phone Button. See “Steering
Wheel Controls ”in the
infotainment manual.
23. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0123.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 9
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . 10
Remote Vehicle Start . . . . . . . . . . . . . . 17
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Door Locks . . . . . . . . . . . . . . . . . 21
Delayed Locking . . . . . . . . . . . . . . . . . . . 21
Automatic Door Locks . . . . . . . . . . . . 21
Lockout Protection . . . . . . . . . . . . . . . . 22
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 22
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 30
Vehicle Alarm System . . . . . . . . . . . . . 30
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 32
Immobilizer Operation . . . . . . . . . . . . 32
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 33
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 33 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 33
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 34
Automatic Dimming Mirror . . . . . . . 34
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 34
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 35
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Rear Camera Mirror . . . . . . . . . . . . . . . 35
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Windows . . . . . . . . . . . . . . . . . . . . 38
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Rear Window Sunshade . . . . . . . . . . . 40
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
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-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 13
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
0 140.
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 0140. 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 0140.
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).
Key Access
To access a vehicle with a weak
transmitter battery, see Door Locks
0 19.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 21
4. Release the door handle.
5. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns freely
when either the wrong key is used,
or the correct key is not fully inserted.
The free-turning door lock feature
prevents the lock from being forced
open. To reset the lock, turn it to the
vertical position with the correct key
fully inserted. Remove the key and
insert it again. If this does not reset
the lock, turn the key halfway around
in the cylinder and repeat the reset
procedure.Power Door Locks
Q: Press to lock the doors.
K:Press to unlock the doors.
The fuel door is also locked or
unlocked using these features.
Delayed Locking
This feature delays the locking of the
doors until five seconds after all doors
are closed.
Delayed locking can only be turned on
when the Open Door Anti-Lockout has
been turned off. When
Qis pressed on the power door
lock switch while the door is open, a
chime will sound three times
indicating delayed locking is active.
The doors will lock automatically
five seconds after all doors are closed.
If a door is reopened before that time,
the five-second timer will reset when
all doors are closed again.
Press
Qon the door lock switch again
or press
Qon the RKE transmitter to
lock the doors immediately.
This feature can also be programmed.
See Vehicle Personalization 0140.
Automatic Door Locks
The doors will lock automatically
when all doors are closed, the ignition
is on, and the vehicle is shifted out of
P (Park).
If a vehicle door is unlocked and then
opened and closed, the doors will lock
either when your foot is removed from
the brake or the vehicle speed
becomes faster than 13 km/h (8 mph).

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
22 KEYS, DOORS, AND WINDOWS
To unlock the doors:
.Press
Kon the power door lock
switch.
. Shift the transmission into
P (Park).
Automatic door locking cannot be
disabled. Automatic door unlocking
can be programmed. See Vehicle
Personalization 0140.
Lockout Protection
If the ignition is on or in ACC/
ACCESSORY, and the power door lock
switch is pressed with the driver door
open, all the doors will lock and only
the driver door will unlock.
If the vehicle is off and locking is
requested while a door is open, when
all doors are closed the vehicle will
check for RKE transmitters inside.
If an RKE transmitter is detected and
the number of RKE transmitters inside
has not reduced, the driver door will
unlock and the horn will chirp three
times. Lockout protection can be manually overridden with the driver
door open by pressing and holding
Q
on the power door lock switch.
Open Door Anti-Lockout
If Open Door Anti-Lockout is turned
on and the vehicle is off, the driver
door is open, and locking is requested,
all the doors will lock and the driver
door will remain open. The Open Door
Anti-Lockout feature can be turned on
or off. See
Vehicle Personalization
0 140.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Manual Safety Locks
If equipped, the safety lock is on the
inside edge of the rear doors. To use
the safety lock:
1. Move the lever down to the lock position.
2. Close the door.
3. Do the same for the other rear door.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
32 KEYS, DOORS, AND WINDOWS
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 0386.
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
010.
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
transmitters, see “Programming
Transmitters to the Vehicle ”under
Remote Keyless Entry (RKE) System
Operation 010.
Do not leave the transmitter or device
that disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
34 KEYS, DOORS, AND WINDOWS
This feature is turned on or off
through vehicle personalization. See
Vehicle Personalization0140.
Resetting the Power Folding Mirrors
Reset the power folding mirrors if:
. The mirrors are accidentally
obstructed while folding.
. They are accidentally manually
folded/unfolded.
. The mirrors do not stay in the
unfolded position.
. The mirrors vibrate at normal
driving speeds.
Fold and unfold the mirrors one time
using the mirror controls to reset
them to their normal position. A noise
may be heard during the resetting of
the power folding mirrors. This sound
is normal after a manual folding
operation. Manual Folding Mirrors
If equipped, the mirrors can be folded
inward toward the vehicle to prevent
damage when going through an
automatic car wash. Push the mirror
outward to return it to the original
position.
Heated Mirrors
The rear window defogger also heats
the outside mirrors.
K:
Press to heat the outside mirrors.
See Automatic Climate Control System
(Dual Zone) 0158 or
Automatic Climate Control System
(Quad Zone) 0163.
Automatic Dimming Mirror
The vehicle has automatic dimming
outside mirrors. The mirrors will
adjust for the glare of the headlamps
behind you.
Reverse Tilt Mirrors
If equipped with memory seats, the
passenger and/or driver mirror tilts to
a preselected position when the
vehicle is in R (Reverse). This allows
the curb to be seen when parallel
parking.
The mirror(s) return to the original
position when:
.
The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about 30 seconds.
. The ignition is turned off.
. The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0140.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 35
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind your vehicle.
Do not spray glass cleaner directly on
the mirror. Use a soft towel dampened
with water.
Automatic Dimming
Rearview Mirror
The vehicle has an automatic
dimming rearview mirror. The mirror
will automatically reduce the glare
from the headlamps from behind. The
dimming feature comes on when the
vehicle is started.
Rear Camera Mirror
If equipped, this automatic dimming
mirror provides a wide angle camera
view of the area behind the vehicle.
Pull the tab to turn on the display.
Push the tab to turn it off. When off
the mirror is automatic dimming.
Adjust the mirror for a clear view of
the area behind the vehicle while the
display is off.PressVto scroll through the
adjustment options.
Press
tanduto adjust the settings
using the indicators on the mirror.
The indicators will remain visible for
five seconds after the last button
activation, and the settings will
remain saved.