Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
4 Introduction
H:Flammable
[:Forward Collision Alert
R:Fuse Block Cover Lock
Location
+: Fuses
j:ISOFIX/LATCH System
Child Restraints
Q: Keep Fuse Block Covers
Properly Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*: Malfunction
Indicator Lamp
:: Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7:Rear Cross Traffic Alert
I:Registered Technician
/:Remote Vehicle Start
h:Risk of Electrical Fire
>:Seat Belt Reminders
I:Side Blind Zone Alert
h:Stop/Start
7:Tire Pressure Monitor
d:Traction Control/
StabiliTrak/Electronic Stability
Control (ESC)
a: Under Pressure
k: Vehicle Ahead Indicator
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
8 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Key . . . . . . . . . . . . . . . . . . . . . 9
Remote Key Operation . . . . . . 9
Remote Vehicle Start . . . . . . . 16
Door Locks . . . . . . . . . . . . . . . . . . . . 18
Power Door Locks . . . . . . . . . . 20
Delayed Locking . . . . . . . . . . . . . 20
Automatic Door Locks . . . . . . 21
Lockout Protection . . . . . . . . . 21
Safety Locks . . . . . . . . . . . . . . . . . . 22
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vehicle Security
Vehicle Security . . . . . . . . . . . . . 24
Vehicle Alarm System . . . . . . 24
Immobilizer . . . . . . . . . . . . . . . . . . . . 27
Immobilizer Operation . . . . . . 27
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 28
Power Mirrors . . . . . . . . . . . . . . . . 28
Folding Mirrors . . . . . . . . . . . . . . . 29
Heated Mirrors . . . . . . . . . . . . . . 30Automatic Dimming
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 30
Reverse Tilt Mirrors . . . . . . . . 30
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 31
Manual Rearview Mirror . . . 31
Automatic Dimming Rearview Mirror . . . . . . . . . . . . 31
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 31
Power Windows . . . . . . . . . . . . . . 31
Sun Visors . . . . . . . . . . . . . . . . . . . . . 33
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 34
Keys and Locks
Keys
{Warning
Leaving children in a vehicle
with a remote key 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 remote key 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 a
remote key.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
14 Keys, Doors, and Windows
Mechanical Key Access
To access a vehicle with a
weak remote key battery, see
Door Locks018.
Programming Remote
Keys to the Vehicle
Only remote keys programmed
to the vehicle will work. If a
remote key is lost or stolen, a
replacement can be purchased
and programmed through your
dealer. The vehicle can be
reprogrammed so that lost or
stolen remote keys no longer
work. Each vehicle can have
up to eight remote keys
matched to it.
Starting the Vehicle with a
Low Remote Key Battery
For improved vehicle security,
the remote key is equipped
with a motion sensor. When
starting the vehicle, if the
remote key has been idle for a
while, the DIC may display KEY
IN SLEEP MODE, MOVE KEY,
THEN START. Move the remote key slightly and try
starting the vehicle. When
starting the vehicle, if the
remote key battery is depleted
or there is signal interference,
the DIC may display NO KEY
FOUND, REPLACE BATTERY
IN KEY or NO REMOTE KEY
WAS DETECTED PLACE KEY
IN KEY POCKET THEN START
YOUR VEHICLE, follow the
steps shown below:
1. Place the remote key into
the rear cupholder. 2. With the vehicle in P (Park)
or N (Neutral) press the
brake pedal and ENGINE
START/STOP.
Replace the remote key
battery as soon as
possible.
Battery Replacement
{Warning
Never allow children to play
with the remote key. The
remote key contains a small
battery, which can be a
choking hazard. If swallowed,
internal burns can occur,
resulting in severe injury or
death. Seek medical
attention immediately if a
battery is swallowed.
{Warning
To avoid personal injury, do
not touch metal surfaces on
the remote key when it has
been exposed to extreme
(Continued)
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
18 Keys, Doors, and Windows
.A remote key 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.
.The 30 minutes of engine
run time have 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(Continued)
Warning (Continued)
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.
.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 doors
from outside the vehicle:
.PressQorKon the remote
key. See Remote Key
Operation 09.
.Use the mechanical key in
the driver door. The key lock
cylinder is covered with
a cap.
See “Driver Door Key Lock
Cylinder Access (In Case of
Dead Battery)” later in this
section.
To lock or unlock the doors
from inside the vehicle:
.PressQorKon the power
door lock switch.
.Pull once on the door handle
to unlock the door and again
to open the door.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 31
Interior Mirrors
Interior Rearview
Mirrors
Adjust the rearview mirror for
a clear view of the area behind
the vehicle.
Do not spray glass cleaner
directly on the mirror. Use a
soft towel dampened with
water.
Manual Rearview
Mirror
If equipped, push the tab
forward for daytime use and
pull it rearward for nighttime
use to avoid glare of the
headlamps from behind.
Automatic Dimming
Rearview Mirror
If equipped, automatic
dimming reduces the glare of
headlamps from behind. The
dimming feature comes on
when the vehicle is started.
Windows{
Warning
Never leave a child, a
helpless adult, or a pet alone
in a vehicle, especially with
the windows closed in warm
or hot weather. They can be
overcome by the extreme
heat and suffer permanent
injuries or even death from
heat stroke.
The vehicle aerodynamics are
designed to improve fuel
economy performance. This may result in a pulsing sound
when either rear window is
down and the front windows
are up. To reduce the sound,
open either a front window or
the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in
the path of a closing
window. Never leave the
remote key in a vehicle with
children. When there are
children in the rear seat, use
the window lockout switch
to prevent operation of the
windows. See Keys
08.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
38 Seats and Restraints
To lower the head restraint,
press the button, located on
the top of the seatback, and
push the head restraint down.
Try to move the head restraint
after the button is released to
make sure that it is locked in
place.
Rear outboard head restraints
are not removable.
The rear seat outboard head
restraints are not intended to
be removed. If removal is
required see your dealer for
assistance with removal.
Front Seats
Power Seat
Adjustment
{Warning
You can lose control of the
vehicle if you try to adjust a
driver seat while the vehicle
is moving. Adjust the driver
seat only when the vehicle is
not moving.
{Warning
The power seats will work
with the ignition off. Children
could operate the power
seats and be injured. Never
leave children alone in the
vehicle.
To adjust the seat:
.Move the seat forward or
rearward by sliding the
control forward or rearward.
.Raise or lower the seat by
moving the rear of the
control up or down.
.If equipped, raise or lower
the front part of the seat
cushion by moving the front
of the control up or down.
For vehicles not equipped with
front cushion tilt, the front
part of the control will raise
and lower the seat.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 47
vehicle is started. These
features can be manually
selected after the ignition is
turned on.
The temperature performance
of an unoccupied seat may be
reduced. This is normal.
To enable or disable remote
start heated or ventilated
seats, select Settings >
Vehicle > Remote Lock,
Unlock, and Start > Remote
Start Auto Heat Seats or
Remote Start Auto Cool
Seats > ON or OFF. See
Remote Vehicle Start016.
Rear Seats
Rear Seat Reminder
If equipped, the message
REAR SEAT REMINDER LOOK
IN REAR SEAT displays under
certain conditions indicating
there may be an item or
passenger in the rear seat.
Check before exiting the
vehicle. This feature will activate when
a second row door is opened
while the vehicle is on or up to
10 minutes before the vehicle
is turned on. There will be an
alert when the vehicle is
turned off. The alert does not
directly detect objects in the
rear seat; instead, under
certain conditions, it detects
when a rear door is opened
and closed, indicating that
there may be something in the
rear seat.
The feature is active only once
each time the vehicle is turned
on and off, and will require
reactivation by opening and
closing the second row doors.
There may be an alert even
when there is nothing in the
rear seat; for example, if a
child entered the vehicle
through the rear door and left
the vehicle without the vehicle
being shut off.
The feature can be turned on
or off. Select Settings >
Vehicle > Rear Seat
Reminder > ON or OFF.
Folding the Seatback
Either side of the seatback
can be folded for more cargo
space. Fold a seatback only
when the vehicle is not
moving.
Caution
Folding a rear seat with the
seat belts still fastened may
cause damage to the seat or
the seat belts. Always
unbuckle the seat belts and
return them to their normal
stowed position before
folding a rear seat.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
54 Seats and Restraints
Lap-Shoulder Belt
All seating positions in the
vehicle have a
lap-shoulder belt.
If you are using a rear seating
position with a detachable
seat belt and the seat belt is
not attached, see Rear Seats
047 for instructions on
reconnecting the seat belt to
the mini-buckle.
The following instructions
explain how to wear a
lap-shoulder belt properly.
1. If the seat has a seat belt guide, the seat belt must
be routed through the
guide to properly position
the shoulder belt. If the
seat belt is not routed
through the guide, slide
the edge of the belt
webbing through the
opening on the guide. Be
sure the belt is not twisted. 2. Adjust the seat, if the seat
is adjustable, so you can sit
up straight. To see how,
see “Seats” in the Index.
3. Pick up the latch plate and
pull the belt across you. Do
not let it get twisted.
The lap-shoulder belt may
lock if you pull the belt
across you very quickly.
If this happens, let the belt
go back slightly to unlock
it. Then pull the belt across
you more slowly. If the shoulder portion of a
passenger belt is pulled
out all the way, the child
restraint locking feature
may be engaged. See Child
Restraint Systems
077.
If this occurs, let the belt
go back all the way and
start again. If the locking
feature stays engaged
after letting the belt go
back to stowed position on
the seat, move the seat
rearward or recline the
seat until the shoulder belt
retractor lock releases.
Engaging the child
restraint locking feature in
the front outboard seating
position may affect the
passenger sensing system.
See Passenger Sensing
System 066.
If the shoulder portion of
the driver belt is pulled out
all the way, the shoulder
belt retractor lock feature
may be engaged. If this
happens, let the belt go
back all the way and start