2019 CADILLAC CT6 key battery

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 29
This key, inside the Remote Keyless
Entry (RKE) transmitter, is used for
the driver door.To remove the key, press the button
on the side of the RKE transmitter
near the bottom, and pull the key out.
Never pull the key out without
pressing the button.
See your dealer if a new key is needed.
Contact Roadside Service if locked out
of the vehicle. See
Roadside Service
0 405.
With an active OnStar or connected
service plan, an OnStar Advisor may
remotely unlock the vehicle. See
OnStar Overview 0414.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement 0411.
If there is a decrease in the Remote
Keyless Entry (RKE) operating range:
. Check the distance. The
transmitter may be too far from
the vehicle.
. Check the location. Other vehicles
or objects may be blocking the
signal. .
Check the transmitter's battery.
See “Battery Replacement ”later in
this section.
. If the transmitter is still not
working correctly, see your dealer
or a qualified technician for
service.
Remote Keyless Entry
(RKE) System Operation
The Keyless Access system allows for
vehicle entry when the Remote
Keyless Entry (RKE) transmitter is
within 1 m (3 ft). See “Keyless Access
Operation ”later in this section.
The RKE transmitter may work up to
60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the transmitter. See
Remote Keyless Entry (RKE) System
0 29.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 33
Key Access
To access a vehicle with a weak
transmitter battery, seeDoor Locks
0 38.
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 two recognized
transmitters in the cupholder.
3. Remove the key lock cylinder cap on the driver door handle. See
Door Locks 038. 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 DIC displays READY FOR
REMOTE #2, 3, 4, ETC.
4. Place the new transmitter into the 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.
8. Replace the key lock cylinder cap. See Door Locks 038.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 35
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.
9. Replace the key lock cylinder cap. See Door Locks 038.
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. Replace the battery if the DIC displays
REPLACE BATTERY IN REMOTE KEY.
1. Press the button on the side of
the RKE transmitter near the
bottom and pull the key out.
Never pull the key out without
pressing the button.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
36 KEYS, DOORS, AND WINDOWS
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.
Remote Vehicle Start
This feature allows the engine to be
started from outside the vehicle.
/: This button is on the RKE
transmitter for 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 steering wheel
may come on during cold weather
when enabled in vehicle
personalization. See Vehicle
Personalization 0157.
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 070.
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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
38 KEYS, DOORS, AND WINDOWS
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
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.
(Continued)
Warning (Continued)
.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.
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 029.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 39
Driver Door Key Lock Cylinder
Access (In Case of Dead Battery)
To access the driver door key lock
cylinder:1. Pull the door handle (1) to the open position and hold it open
until the cap removal is
complete.
2. Insert the key into the slot (3) on the bottom of the cap (2) and lift
the key upward.
3. Move the cap (2) rearward and remove.
4. Use the key in the cylinder. To replace the cap:
1. Pull the door handle (1) to the open position and hold it open
until the cap installation is
complete.
2. Insert the two tabs (6) at theback of the cap between the
seal (5) and the metal base (4).
3. Slide the cap forward and pressthe forward edge to install the
cap in place.
4. Release the door handle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 43
.PressXtwice quickly on the
Remote Keyless Entry (RKE)
transmitter.
. 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 029. 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
Caution
You 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.
Caution
Do not mount any load-carrying
accessories, such as a bike rack or
luggage carriers, to the trunk of a (Continued)
Caution (Continued)
vehicle equipped with the power
trunk feature. This may damage the
power trunk system.
If equipped, to open the power trunk:
. Press and release|on the
driver door. The driver door must
be unlocked, the ignition must be
on, or Retained Accessory Power
(RAP) must be active.
. Press
Xtwice quickly on the RKE
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
46 KEYS, DOORS, AND WINDOWS
The projected logo will not work
under these conditions:
.The vehicle battery is low.
. The transmission is not in
P (Park).
. Hands Free Trunk Control is set to
Off in vehicle personalization. See
Vehicle Personalization 0157.
. Power trunk is turned off.
. The vehicle remains parked for
72 hours or more, with no RKE
transmitter use or Keyless Access
operation. To re-enable, press any
button on the RKE transmitter or
open and close a vehicle door. The projected logo will not work for a
single RKE transmitter when a
transmitter:
.
Has been left within
approximately 5 m (15 ft) of the
trunk for several minutes.
. Has been left inside the vehicle
and all vehicle doors are closed.
. Has approached the area outside
of the trunk five times within
10 minutes.