2018 CADILLAC CT6 key

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 37
alarm. The horn sounds and the turn
signal lamps flash for 30 seconds,
or until
7is pressed again or the
vehicle is started.
X: Press twice quickly to open the
trunk. Press once to stop the trunk
from moving. See Trunk047.
Keyless Access Operation
The Keyless Access system lets you
lock and unlock the doors and access
the trunk without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter
must be within 1 m (3 ft) of the door
or trunk being opened. If equipped,
there will be a button on the outside
door handles.
The Keyless Access system can be
programmed to unlock all doors on
the first lock/unlock button press from
the driver door. See Vehicle
Personalization 0170.
If equipped with memory seats, RKE
transmitters 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 069. Keyless Unlocking/Locking from the
Driver Door
When the doors are locked and the
RKE transmitter is within 1 m (3 ft) of
the door handle, pressing the lock/
unlock button on the driver door
handle will unlock the driver door.
If the lock/unlock button is pressed
again within five seconds, all
passenger doors will unlock.
Driver Door Shown, Passenger Similar
Pressing the lock/unlock button will
cause all doors to lock if any of the
following occur:
. It has been 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 the
Passenger Doors
When the doors are locked and the
RKE transmitter is within 1 m (3 ft) of
the door handle, pressing the lock/
unlock button on a passenger 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.
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.
For gasoline vehicles, the fuel door
will also lock at this time.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
38 KEYS, DOORS, AND WINDOWS
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, seeVehicle Personalization
0 170.
Temporary Disable of Passive
Locking Feature
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 a
remote is left in the vehicle, the horn
will chirp three times after all doors
are closed. To turn on or off see
Vehicle Personalization
0170.
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
transmitter(s) inside. If an RKE
transmitter is not detected, the 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 0170.
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).
Keyed Access
To access a vehicle with a dead
transmitter battery, see Door Locks
0 43.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed to
the vehicle will work. If a transmitter
is lost or stolen, a replacement can be
purchased and programmed through
your dealer. The vehicle can be
reprogrammed so that lost or stolen
transmitters no longer work. Each
vehicle can have up to eight
transmitters matched to it.
Programming with Recognized
Transmitters
A new transmitter can be programmed
to the vehicle when there are two
recognized transmitters.
To program, the vehicle must be off
and all transmitters, both currently
recognized and new, must be
with you.
1. Remove the vehicle key from the recognized transmitter.
2. Place the recognized transmitter(s) in the cupholder.
3. Remove the key lock cylinder cap on the driver door handle. See
Door Locks 043. Insert the

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 39
vehicle key into the key lock
cylinder on the driver door
handle, then turn the key
counterclockwise to the unlock
position five times within
10 seconds.
The Driver Information Center
(DIC) displays READY FOR
REMOTE #2, 3, 4, ETC.
4. Place the new transmitter intothe transmitter pocket. The
center console storage area will
need to be opened. 5. Press ENGINE START/STOP.
When the transmitter is learned,
the DIC display will show that it
is ready to program the next
transmitter.
6. Remove the transmitter from the transmitter pocket and press
K
orQon the transmitter.
To program additional
transmitters, repeat Steps 4–6.
When all additional transmitters
are programmed, press and hold
ENGINE START/STOP for
approximately 12 seconds to exit
programming mode.
7. Put the vehicle key back into the transmitter.
Programming without Recognized
Transmitters
If two currently recognized
transmitters are not available, follow
this procedure to program up to eight
transmitters. This feature is not
available in Canada. This procedure
will take approximately 30 minutes to complete. The vehicle must be off and
all transmitters to be programmed
must be with you.
1. Remove the vehicle key from the transmitter.
2. Remove the key lock cylinder cap on the driver door handle. See
Door Locks 043. Insert the
vehicle key into the key lock
cylinder on the driver door
handle, then turn the key
counterclockwise to the unlock
position five times within
10 seconds.
The Driver Information Center
(DIC) displays REMOTE LEARN
PENDING, PLEASE WAIT.
3. Wait for 10 minutes until the DIC displays PRESS ENGINE
START BUTTON TO LEARN and
then press ENGINE
START/STOP.
The DIC display will again show
REMOTE LEARN PENDING,
PLEASE WAIT.
4. Repeat Step 3 two additional times. After the third time all
previously known transmitters

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
40 KEYS, DOORS, AND WINDOWS
will no longer work with the
vehicle. Remaining transmitters
can be relearned during the next
steps.
The DIC display should now
show READY FOR REMOTE # 1.
5. Place the new transmitter in thetransmitter pocket. The center
console storage area will need to
be opened.
6. Press ENGINE START/STOP. When the transmitter is learned,
the DIC display will show that it
is ready to program the next
transmitter. 7. Remove the transmitter from the
transmitter pocket and press
K
orQon the transmitter.
To program additional
transmitters, repeat Steps 5–7.
When all additional transmitters
are programmed, press and hold
ENGINE START/STOP for
approximately 12 seconds to exit
programming mode.
8. Put the vehicle key back into the transmitter.
Starting the Vehicle with a Low
Transmitter Battery
If the transmitter battery is weak or if
there is interference with the signal,
the DIC may display NO REMOTE
DETECTED or NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE when starting
the vehicle.
To start the vehicle:
1. Open the center console storage area.
2. Place the transmitter in thetransmitter pocket.
3. With the vehicle in P (Park) or N (Neutral) press the brake pedal
and ENGINE START/STOP.
Replace the transmitter battery
as soon as possible.
Battery Replacement
Caution
When replacing the battery, do not
touch any of the circuitry on the
transmitter. Static from your body
could damage the transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 41
Replace the battery if the REPLACE
BATTERY IN REMOTE KEY message
displays in the DIC.
1. Press the button on the side ofthe transmitter near the bottom
and pull the key out.
2. Separate the two halves of thetransmitter using a flat tool
inserted into the bottom center
of the transmitter. Do not use
the key slot.3. Remove the old battery. Do notuse a metal object.
4. Insert the new battery on the back housing, positive side facing
down. Replace with a CR2032 or
equivalent battery.
5. Align the front and back housing, then snap the transmitter
together.
6. Reinsert the key.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
42 KEYS, DOORS, AND WINDOWS
Remote Vehicle Start
If equipped, this feature allows the
engine to be started from outside the
vehicle.
For the PLUG-IN vehicle, the engine
will only start if needed for warming
functions or high voltage battery
charging.
/:This button will be on the RKE
transmitter if the vehicle has remote
start.
The climate control system will use
the previous settings during a remote
start. The rear window defogger may
come on during remote start based on
cold ambient conditions. The rear
defog indicator light does not come on
during remote start.
If equipped, the heated seats and
heated steering wheel or ventilated
seats may come on when enabled in
vehicle personalization. See Vehicle
Personalization 0170.
If equipped, the heated and ventilated
front seats may also come on when
the vehicle personalization setting is
enabled. See Heated and Ventilated
Front Seats 072. Laws in some local communities may
restrict the use of remote starters. For
example, some laws may require a
person using remote start to have the
vehicle in view. Check local
regulations for any requirements.
If your vehicle is low on fuel, do not
use the remote start feature. The
vehicle may run out of fuel.
The RKE transmitter range may be
shorter while the vehicle is running.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE) System
0
35.
Starting the Engine Using Remote
Start
1. Press and release
Qon the RKE
transmitter.
2. Immediately press and hold
/
for at least four seconds or until
the turn signal lamps flash. This
confirms the request to remote
start the vehicle has been
received. During the remote start, the
doors will be locked and the
parking lamps will remain on as
long as the engine is running.
The engine will shut off after
10 minutes unless a time
extension is done or the vehicle
is started.
3. Press the brake pedal and start the vehicle to drive.
Extending Engine Run Time
The engine run time can also be
extended by another 10 minutes,
if during the first 10 minutes
Steps 1 and 2 are repeated while the
engine is still running. An extension
can be requested 30 seconds after
starting. This provides a total of
20 minutes.
The remote start can only be
extended once.
When the remote start is extended,
the second 10 minute period is added
on to the first 10 minutes for a total
of 20 minutes.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 43
A maximum of two remote starts, or a
remote start with an extension, are
allowed between ignition cycles.
The vehicle's ignition must be turned
from on to off before the remote start
procedure can be used again.
Canceling a Remote Start
To cancel a remote start, do any 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.
Conditions in Which Remote Start
Will Not Work
The remote start will not operate if
any of the following occur:
. The ignition is in any mode other
than OFF.
. A transmitter is in the vehicle.
. The hood is not closed.
. The hazard warning flashers
are on. .
There is an emission control
system malfunction.
. The engine coolant temperature is
too high.
. The oil pressure is low.
. Two remote vehicle starts have
already been used.
. The vehicle is not in P (Park).Door Locks
{Warning
Unlocked doors can be dangerous.
. Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The doors can be
unlocked and opened while
the vehicle is moving. The
chance of being thrown out of
the vehicle in a crash is
increased if the doors are not
locked. So, all passengers
should wear seat belts
(Continued)
Warning (Continued)
properly and the doors should
be locked whenever the
vehicle is driven.
. Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
. Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
To lock or unlock the door from
outside the vehicle:
. Press
QorKon the Remote
Keyless Entry (RKE) transmitter.
. In the case of a dead battery, use
the key in the driver door. The key
cylinder is covered with a cap.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
44 KEYS, DOORS, AND WINDOWS
To lock or unlock the door from inside
the vehicle:
.Press
QorKon the power door
lock switch.
. Pulling an interior door handle
will unlock the door. Pulling the
door handle again unlatches it.
Keyless Access
Press the lock/unlock button when the
RKE transmitter is within 1 m (3 ft) of
the driver door handle. When
unlocking from the driver door, the
first press unlocks that door; press
again within five seconds to unlock all
passenger doors. See Remote Keyless
Entry (RKE) System Operation 035. Driver Door Key Cylinder Access (In
Case of Dead Battery)
To access the key cylinder:
1. Pull the door handle (1) to the open position.
2. Insert the key into the slot (3) on the bottom of the cap (2) and
pry outward.
3. Move the cap (2) rearward and remove.
4. Use the key in the cylinder.
To replace the cap: 1. Pull the door handle to the open position.
2. Insert the two tabs (7) at theback of the cap (6) between the
seal (4) and the metal base (5).