CADILLAC CT6 2016 Service Manual

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
40 Keys, Doors, and Windows 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.
Unlocked Door Anti-Lockout
If Unlocked 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
only the driver door will unlock. The
Unlocked Door Anti-Lockout feature
can be turned on or off using the
vehicle personalization menus. See
Vehicle Personalization 0 157 .
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. To open a rear door when the safety
lock is on:
1. Unlock the door by activating
the inside handle, by pressing
the power door lock switch,
or using the Remote Keyless
Entry (RKE) transmitter.
2. Open the door from the
outside.
When the safety lock is enabled,
adults and older children will not be
able to open the rear door from the
inside. Cancel the safety locks to
enable the doors to open from the
inside.
To cancel the safety lock:
1. Unlock the door and open it
from the outside.
2. Move the lever up to unlock.
Do the same for the other door.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 41
Doors Trunk
{ WarningExhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
.
Close all of the windows.
.
Fully open the air outlets on
or under the instrument
panel.
.
Adjust the climate control
system to a setting that
brings in only outside air
(Continued) Warning (Continued) and set the fan speed to the
highest setting. See
“ Climate Control Systems ”
in the Index.
.
If the vehicle is equipped
with a power liftgate, disable
the power liftgate function.
See Engine Exhaust 0 209 .
To open the trunk, the vehicle must
be off or the shift lever must be in
P (Park). Manual Trunk
.
Press
| on the driver door.
.
Press
X twice quickly on the
Remote Keyless Entry (RKE)
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
42 Keys, Doors, and Windows
.
Press the touch pad on the rear
of the trunk above the license
plate when all doors are
unlocked.
For Keyless Access, the trunk can
be opened while the vehicle is
locked by pressing the touch pad
above the license plate while the
RKE transmitter is within 1 m (3 ft)
of the rear of the vehicle. See
Remote Keyless Entry (RKE)
System Operation 0 29 .
Close the trunk by pulling on the
handle. Do not use the handle as a
tie-down. Do not press the touch
pad while closing the trunk; this will
cause the trunk lid to be unlatched. The trunk has an electric latch. If the
vehicle has lost power or the battery
is disconnected, the trunk will not
open. If this happens, use the
emergency trunk release handle.
Power Trunk
{ WarningYou or others could be injured if
caught in the path of the power
trunk. Make sure there is no one
in the way of the power trunk as it
is opening and closing.
If equipped, to open the power
trunk:
.
Press and release
| on the
driver door. The driver door must
be unlocked or the vehicle must
be in ON/RUN or Retained
Accessory Power (RAP).
.
Press
X twice quickly on the
RKE transmitter. .
Press the touch pad on the rear
of the trunk after unlocking all
doors or with the RKE
transmitter in range for Keyless
Access.
Monitor the trunk area to make sure
nothing will come in contact or move
into the path of the trunk lid when
power closing.
To close the power trunk:
.
Press and hold
| on the
driver door until the trunk
latches. A chime will sound and
a DIC message will display
when the operation is complete.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 43.
Press the power trunk button on
the trunk lid.
Press any trunk button or the touch
pad to stop the power operation.
Pressing a trunk button again starts
the operation in the reverse
direction. The touch pad will not
close the trunk lid.
Do not manually force the trunk lid
open or closed during a power
cycle. The power trunk may be
temporarily disabled under extreme
low temperatures, or after repeated
power cycling over a short period of
time. The trunk can be opened
manually.
Obstacle Detection Features
If there is an obstruction during a
power open or close cycle, a closing
trunk will reverse direction and an
opening trunk will stop power
operation. If there are multiple
obstructions on the same power
cycle, the power function will
deactivate. After removing the
obstructions, manually close the
trunk lid to allow normal power
operation functions to resume. If the vehicle is locked and an
obstacle prevents the trunk from
closing and latching, the horn will
sound as an alert that the trunk did
not close.
Hands-Free Power Trunk If equipped, the power trunk may be
operated with a kicking motion
under the rear bumper. The RKE
transmitter must be within 1 m (3 ft).
The hands-free feature will not work
while the trunk lid is moving. To stop
the trunk while in motion, use one of
the power trunk buttons. To operate, kick your foot straight up
in one swift motion under the center
of the rear bumper, then pull it back.
.
Do not sweep your foot side
to side.
.
Do not keep your foot under the
bumper; it will not activate.
.
Do not touch the trunk lid until it
has stopped moving.
.
This feature may be temporarily
disabled under some conditions.
If it does not respond to the kick,
operate the power trunk by
another method or start the
vehicle and the feature will be
re-enabled.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
44 Keys, Doors, and Windows When closing the power trunk using
this feature, there will be a short
delay. The taillamps will flash and a
chime will sound. Move away from
the trunk before it starts moving.
Rear Seat Pass-Through Use the rear seat pass-through door
when transporting long items. See
Rear Seat Pass-Through Door 0 69 .
Emergency Trunk Release
Handle CautionDo not use the emergency trunk
release handle as a tie-down or
anchor point when securing items
in the trunk as it could damage
the handle.
There is a glow-in-the-dark
emergency trunk release handle on
the trunk lid. This handle will glow
following exposure to light. Pull the
release handle to open the trunk
from the inside.
If equipped with a power trunk, the
emergency trunk release handle will
power open the trunk.
After use, return to the stored
position. 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 45On 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
Qon 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
K on 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
K on the RKE transmitter. .
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
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 If
K is 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 DIC.
See Security Messages 0 155 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
46 Keys, Doors, and Windows 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. With the vehicle turned off, press
o 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 See Radio Frequency
Statement 0 371 .
Immobilizer Operation This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 47The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the pushbutton start
is activated to enter the ACC/
ACCESSORY mode or the ON/
RUN/START mode 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/
RUN/START, 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
Key and Lock Messages 0 150 .
If the ignition modes will not change
with the other transmitter, your
vehicle needs service. If the ignition
does change modes, the first
transmitter may be faulty. See the
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 0 29 .
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
48 Keys, Doors, and Windows
Exterior Mirrors Convex Mirrors
{ WarningA convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat. Power Mirrors
1. Move the selector switch to L
(Left) or R (Right) to choose
the driver or passenger mirror.
2. Press one of the four arrows to
move the mirror.
3. Move the selector switch to
)to deselect the mirror.
Power Folding Mirrors
If equipped with power folding
mirrors, press the down arrow on
the control pad while the selector
switch is at
) . Press again to
unfold. Auto Mirror Folding
If equipped, with the ignition off,
press and hold
Q on the RKE
transmitter for approximately
one second to automatically fold the
exterior mirrors. Press and hold
Kon the RKE transmitter for
approximately one second to unfold.
See Remote Keyless Entry (RKE)
System Operation 0 29 .
This feature is turned on or off
through vehicle personalization. See
Vehicle Personalization 0 157 .
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.
Exterior Automatic Dimming
Mirror
The vehicle may have exterior
automatic dimming mirrors that will
automatically adjust for the glare of
headlamps behind.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 49Memory Mirrors
The vehicle may have memory
mirrors. See Memory Seats 0 63 .
Lane Change Alert (LCA)
The vehicle may have LCA. See
Lane Change Alert (LCA) 0 246 .
Turn Signal Indicator
The vehicle has a turn signal
indicator on the mirror housings.
The indicator will flash when a turn
signal or the hazard warning
flashers are used.
Heated Mirrors The rear window defogger also
heats the outside mirrors.
= : Press to heat the outside
mirrors.
See Automatic Climate Control
System (Quad Zone) 0 178 or
Automatic Climate Control System
(Dual Zone) 0 185 . 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 0 157 .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.