keyless CADILLAC CT4 2023 Owners Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 9
The mechanical key, inside the
remote key, is used for the
driver door and glove box.To remove the mechanical key,
press the button on the side
of the remote key near the
bottom, and pull the
mechanical key out. Never pull
the mechanical key out
without pressing the button.
If it becomes difficult to turn
the key, inspect the key blade
for debris. Periodically clean
with a brush or pick.
See your dealer if a new
mechanical key is needed.
Contact Roadside Assistance
if locked out of the vehicle.
See Roadside Assistance
Program
0487.
With an active OnStar or
connected service plan, an
OnStar Advisor may remotely
unlock the vehicle. See OnStar
Overview 0499.
Remote Key
See Radio Frequency
Statement 0494. If there is a decrease in the
remote key operating range:
.Check the distance. The
remote key may be too far
from the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the remote key
battery. See
“Battery
Replacement” later in this
section.
.If the remote key is still not
working correctly, see your
dealer or a qualified
technician for service.
Remote Key
Operation
The Keyless Access system
allows for vehicle entry when
the remote key is within 1 m
(3 ft). See “Keyless Access
Operation” later in this section.
The remote key functions may
work up to 60 m (197 ft) away
from the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 11
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 signal lamps flash
for 30 seconds, or until
7is
pressed again or the vehicle is
started.
X: Press twice to release the
trunk.
Keyless Access Operation
The Keyless Access system
lets you lock and unlock the
doors and access the trunk
without removing the remote
key from your pocket, purse,
briefcase, etc. The remote key
must be within 1 m (3 ft) of the
trunk or door being opened.
The button is on the outside
door handle.
The Keyless Access system
can be programmed to be
turned off or to unlock all
doors on the first door handle press from the driver door.
Keyless unlocking can also be
turned off. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select
“Vehicle” to display the
list of available options and
select “Remote Lock, Unlock,
Start”.
If equipped with memory
seats, remote keys 1 and 2 are
linked to seating positions of
memory 1 or 2. See Memory
Seats 041.
Keyless Unlocking/Locking
from the Driver Door
When the doors are locked
and the remote key is within
1 m (3 ft) of the door handle,
pressing the door handle
button on the driver door
handle will unlock the driver
door. If the door handle button
is pressed again within
five seconds, all passenger
doors will unlock. If equipped with remote
folding mirror, pressing the
driver door handle button may
fold and unfold the mirrors.
See Folding Mirrors
029.
Driver Door Shown,
Passenger Similar
Pressing the door handle
button will cause all doors to
lock if any of the following
occur:
.It has been more than
five seconds since the first
door handle button press.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
12 Keys, Doors, and Windows
.Two door handle 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 remote key is within
1 m (3 ft) of the door handle,
pressing the door handle
button on a passenger door
handle will unlock all doors.
Pressing the door handle
button will cause all doors to
lock if any of the following
occur:
.The door handle button was
used to unlock all doors.
.Any vehicle door has opened
and all doors are now closed.
Disable/Enable Keyless
Unlocking of Exterior Door
Handles and Trunk
If equipped, keyless unlocking
of the exterior door handles
and trunk can be disabled and
enabled. Disabling Keyless Unlocking:
With the vehicle off, press and
hold
QandKon the remote
key at the same time for
approximately four 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.
Disabling Keyless Unlocking
may also be configured under
Vehicle Personalization. To
view available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”. Enabling Keyless Unlocking:
With the vehicle off, press and
holdQandKon the remote
key at the same time for
approximately four seconds.
The turn signal lamps will flash
twice quickly to indicate
access is enabled.
Enabling Keyless Unlocking
may also be configured under
Vehicle Personalization. To
view available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select “Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”.
Passive (Walkaway) 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 remote key has
been removed or none remain
in the vehicle.
If equipped, the fuel door will
also lock.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 13
If other electronic devices
interfere with the remote key
signal, the vehicle may not
detect the remote key inside
the vehicle. If passive
(walkaway) locking is enabled,
the doors may lock with the
remote key inside the vehicle.
Do not leave the remote key in
an unattended vehicle.
To view available settings for
this feature, touch the
Settings icon on the
infotainment home page.
Select“Vehicle” to display the
list of available options and
select “Power Door Locks”.
If equipped with remote
folding mirror, passive
(walkaway) locking may fold
the mirrors. See Folding
Mirrors 029. Temporary Disable of
Passive (Walkaway) 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 (walkaway) locking will
then remain disabled until the
vehicle is turned on.
Remote Key Left In Vehicle
Alert
When the vehicle is turned off
and a remote key is left in the
vehicle, the horn will chirp
three times after all doors are
closed. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select “Vehicle” to display the
list of available options and
select “Remote Lock, Unlock,
Start”. Remote Key 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 a remote key inside. If a
remote key is not detected,
the Driver Information Center
(DIC) will display NO KEY
FOUND and the horn will chirp
three times.
This occurs only once each
time the vehicle is driven. To
view available settings for this
feature, touch the Settings
icon on the infotainment home
page. Select
“Vehicle”to
display the list of available
options and select “Remote
Lock, Unlock, Start”.
Keyless Trunk Opening
Press the touch pad on the
rear of the trunk above the
license plate if the remote key
is within 1 m (3 ft).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 19
Keyless Access
When the doors are locked
and the remote key is within
1 m (3 ft) of the driver door
handle, press the lock/unlock
button. When unlocking from
the driver door, the first press
unlocks that door; press again
within five seconds to unlock
the passenger door and the
trunk. See Remote Key
Operation09. 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 mechanical key into the slot (3) on the
bottom of the cap (2) and
lift the mechanical key
upward.
3. Move the cap (2) rearward and remove. 4. Use the mechanical 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
the back of the cap
between the seal (5) and
the metal base (4).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 25
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 remote key.
.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
Qon
the remote key 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 mechanical key.
If the driver door is opened
without first unlocking with
the remote key, 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 remote key
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:
.PressKon the remote key.
.Unlock the vehicle using the
Keyless Access system.
.Start the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
26 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 remote key or use the
Keyless Access system.
Unlatching the driver door
with the mechanical key will
not disarm the system or turn
off the alarm.
How to Detect a Tamper
Condition
IfKis pressed on the remote
key 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.
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 when a tire is removed.
Make sure the vehicle's alarm
is not armed prior to any
jacking. 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 sun glasses.
.Make sure there are no
obstructions blocking the
sensors in the front
overhead console.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
30 Keys, Doors, and Windows
not be automatically unfolded
by the Remote Mirror Folding
feature.
If equipped with power folding
mirrors, and the mirrors have
not been folded with the
power folding mirror switch
and the vehicle is in P (Park),
they may be automatically
folded/unfolded as follows:1. If doors are locked by pressing
Hon the remote
key, the mirrors will fold.
If doors are unlocked by
pressing
Ion the remote
key, the mirrors will unfold.
See Remote Key Operation
0 9.
2. If doors are locked by pressing the door handle
button, the mirrors will
fold. If doors are unlocked
by pressing the door
handle button, the mirrors
will unfold. See “Keyless
Unlocking/Locking from
the Driver Door” in Remote
Key Operation 09. 3. If passive locking is
enabled and doors are
locked by that feature, the
mirrors will fold. See
“Passive Locking” in
Remote Key Operation 09.
Heated Mirrors
K:The rear window defogger
also heats the outside mirrors.
See Dual Automatic Climate
Control System 0225.
Automatic Dimming
Mirror
If the vehicle has the
automatic dimming mirror, the
driver outside mirror
automatically adjusts for the
glare of headlamps
behind you.
Do not spray glass cleaner or
chrome cleaner directly onto
the mirror. Only use a soft
towel dampened with water.
Reverse Tilt Mirrors
If equipped with reverse tilt
mirrors and 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) may move from
their tilted position when:
.The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
.The vehicle is turned off.
.The vehicle is driven in
R (Reverse) above a set
speed.
To view available settings
from the infotainment screen,
touch Settings > Vehicle >
Comfort and Convenience.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 151
Press the lamp lenses to
manually turn on or off the
front reading lamps.
Rear Reading Lamps
The rear reading lamps are
over the rear passenger
doors.
Press the lamp lenses to
manually turn on or off the
rear reading lamps.
Lighting Features
Entry Lighting
The interior lamps turn on
when pressing
Kon the
remote key or opening any
doors, and the dome lamp
control is not in the
jOFF
position.
Some exterior lamps also turn
on when pressing
Kon the
remote key or opening any
doors. Low-Beam lamps will
only turn on briefly at night,
or in areas with limited lighting.
All lamps will gradually fade
out after about 30 seconds.
Entry lighting can be disabled
manually by closing all doors,
pressing
Qon the remote key,
or starting the vehicle. This feature can be changed.
On the infotainment home
page, select the Setting icon >
Vehicle > Vehicle Locator
Lights.
Approach Detection
If equipped, the entry lighting
feature will automatically turn
on when the remote key is
detected within approximately
2 m (6 ft) of the vehicle.
If the vehicle has remained
parked for an extended period
of time with no remote key use
or keyless access operation,
approach detection will be
disabled. To reactivate, press
any button on the remote key
or open and close all vehicle
doors to re-enable the entry
lighting feature on approach.
Exit Lighting
Some exterior lamps and
interior lamps turn on when
the driver door is opened after
the vehicle is turned off.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 261
{Warning
Rocker extensions may
break under pressure,
resulting in property damage
or injury. Do not stand on
the rocker extension or use
it as a step.
{Warning
Rear end spoilers may break
under pressure, resulting in
property damage or injury.
Do not push the vehicle by
the spoiler or use the spoiler
as a handle.
Ignition Positions
The vehicle has an electronic
keyless ignition with
pushbutton start.
The Remote Key must be in
the vehicle for the system to
operate. If the pushbutton
start is not working, the
vehicle may be near a strong
radio antenna signal causing
interference to the Keyless
Access system. See Remote
Key Operation09.
To shift out of P (Park), the
vehicle must be on and the
brake pedal must be applied. Stopping the Engine/OFF (No
Indicator Lights) :
When the
vehicle is stopped, press
ENGINE START/STOP once to
turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and
Retained Accessory
Power (RAP) will remain active.
See Retained Accessory
Power (RAP) 0267.
If the vehicle has an automatic
transmission, and is not in
P (Park), the ignition will return
to accessory mode and display
a message in the Driver
Information Center (DIC).
When the vehicle is shifted
into P (Park), the ignition
system will turn OFF.
If the vehicle has a manual
transmission and is stationary,
the ignition will turn off, and
Retained Accessory
Power (RAP) will remain active.
See Retained Accessory
Power (RAP) 0267.