2023 CADILLAC CT4 warning

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
22 Keys, Doors, and Windows
Safety Locks
With Folding Mirrors
Without Folding MirrorsThe rear door safety locks
prevent passengers from
opening the rear doors from
inside the vehicle.
Press
{
vto activate the
safety locks on the rear doors.
The indicator light in the
switch will illuminate when
activated.
The rear door power windows
are also disabled. See Power
Windows 031.
Press
{ vagain to deactivate
the safety locks.
If an inside rear door handle is
being pulled at the same time
the safety lock is deactivated,
only that door will remain
locked and the indicator light
may flash. Release the handle,
then press the safety lock
twice to deactivate the safety
locks.
Doors
Trunk
{Warning
Exhaust 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. (Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 23
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air
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 0271.
Manual Trunk
To release the trunk, the
vehicle must be off or the shift
lever must be in P (Park).
.Press|on the driver door.
.PressXtwice quickly on the
remote key.
.Press the touch pad on the
rear of the trunk above the
license plate when all doors
are unlocked.
The trunk can be opened while
the vehicle is locked by
pressing the touch pad above
the license plate while the
remote key is within 1 m (3 ft)
of the rear of the vehicle. See
Remote Key Operation 09.
Close the trunk by pulling on
the handle. Do not use the
handle as a tie-down. Do not
press the touch pad while

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
28 Keys, Doors, and Windows
remote key in the backup
location. See Remote Key
Operation09.
If the ignition modes will not
change with the other remote
key or in the backup location,
the vehicle needs service.
If the ignition does change
modes, the first remote key
may be faulty. See your dealer.
It is possible for the
immobilizer system to learn
new or replacement remote
keys. Up to eight remote keys
can be programmed for the
vehicle. To program additional
remote keys, see
“Programming Remote Keys to
the Vehicle” under Remote
Key Operation 09.
Do not leave the remote key
or device that disarms or
deactivates the
theft-deterrent system in the
vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A 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
To adjust each mirror: 1. Press
jor|to select the
driver or passenger side
mirror. The indicator light
will illuminate.
2. Press the arrows on the control pad to move the
mirror in the desired
direction.
3. Adjust each outside mirror so that a little of the
vehicle and the area
behind it can be seen.

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
Seats and Restraints 37
Head Restraints{
Warning
With head restraints that
are not installed and
adjusted properly, there is a
greater chance that
occupants will suffer a neck/
spinal injury in a crash. Do
not drive until the head
restraints for all occupants
are installed and adjusted
properly.
If equipped with base seats,
adjust the head restraint so
that the top of the restraint is
at the same height as the top
of the occupant's head. This
position reduces the chance of
a neck injury in a crash.
Front Seats
If equipped, the vehicle's front
seats have adjustable head
restraints in the outboard
seating positions.
The height of the head
restraint can be adjusted. To raise or lower the head
restraint, press the button
located on the side of the
head restraint, and pull up or
push the head restraint down
and release the button. Pull
and push on the head restraint
after the button is released to
make sure that it is locked in
place.
The front seat outboard head
restraints are not removable.
Rear Seats
The vehicle's rear seat has
adjustable head restraints in
the outboard seating
positions.
The height of the head
restraint can be adjusted. Pull
the head restraint up to raise
it. Try to move the head
restraint to make sure that it
is locked in place.

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 39
If the vehicle is not in P (Park),
seat travel may be limited.
Release and press the seat
switch again to continue
movement.
If something has blocked the
seat during movement, the
movement may stop. Remove
the obstruction and try the
adjustment again. If movement
is still not available, see your
dealer.
To adjust the seatback, see
Reclining Seatbacks039.
To adjust the lumbar support,
see Lumbar Adjustment 040.
Some vehicles are equipped
with a Safety Alert Seat. This
feature activates a vibrating
pulse alert in the driver seat to
help the driver avoid crashes.Thigh Support
Adjustment
If equipped, pull up on the
lever. Then pull or push on the
support to lengthen or
shorten. Release the lever to
lock in place.
Reclining Seatbacks
{Warning
Sitting in a reclined position
when the vehicle is in motion
can be dangerous. Even
when buckled up, the seat
belts cannot do their job.
The shoulder belt will not be
against your body. Instead, it
will be in front of you. In a
crash, you could go into it,
receiving neck or other
injuries.
The lap belt could go up
over your abdomen. The belt
forces would be there, not
at your pelvic bones. This
could cause serious internal
injuries.
For proper protection when
the vehicle is in motion, have
the seatback upright. Then
sit well back in the seat and
wear the seat belt properly.