2023 CADILLAC CT4 roof

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
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
34 Keys, Doors, and Windows
Roof
Sunroof
If equipped, the ignition must
be on or in accessory mode,
or Retained Accessory Power
(RAP) must be active to
operate the sunroof. See
Ignition Positions0261 and
Retained Accessory Power
(RAP) 0267.
While operating in express,
movement can be stopped by
pressing the switch again.
The sunroof cannot be opened
or closed if the vehicle has an
electrical failure.
1. SLIDE Switch
2. TILT Switch
Sunroof Operation:
.Press and releaseD(1) to
express-open to the fully
open position.
.Pull and releaseD(1) to
express-close.
.Press or pull and holdD(1)
to open or close without
express. Release
D(1) at the
desired position. Sunroof Vent Operation:
.Press and releaseE(2) to
vent the sunroof.
.Pull and releaseE(2) to
close the sunroof vent.
This sunroof also has a
sunshade, which must be
opened and closed manually.
Automatic Reversal
System
The sunroof, if equipped, has
an automatic reversal system
that is only active when the
sunroof is operated in
express-close mode.
If an object is in the path while
express-closing, the reversal
system will detect an object,
stop, and open the sunroof
slightly.
If this condition occurs,
attempt to remove the object,
then pull and release the
switch to express close. If the
reversal occurs multiple times,
the DIC message OPEN THEN
CLOSE SUNROOF will display,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 35
and express is disabled. To
operate sunroof while express
is disabled, the switch must be
either pressed or pulled
and held.
Dirt and debris may collect on
the sunroof seal or in the
track. This could cause an
issue with sunroof operation
or noise. It could also plug the
water drainage system.Periodically open the sunroof
and remove any obstacles or
loose debris. Wipe the sunroof
seal and roof sealing area
using a clean cloth, mild soap,
and water. Do not remove
grease from the sunroof.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 59
vehicle or while you are
driving. See Airbag Readiness
Light0116.
Airbag System
The vehicle has the following
airbags:
.A frontal airbag for the
driver
.A frontal airbag for the front
outboard passenger
.A knee airbag for the driver.
.A knee airbag for the front
outboard passenger.
.A seat-mounted side impact
airbag for the driver
.A seat-mounted side impact
airbag for the front outboard
passenger
.A roof-rail airbag for the
driver and the passenger
seated directly behind the
driver
.A roof-rail airbag for the
front outboard passenger
and the passenger seated
directly behind the front
outboard passenger All vehicle airbags have the
word AIRBAG on the trim or
on a label near the deployment
opening.
For frontal airbags, the word
AIRBAG is on the center of the
steering wheel for the driver
and on the instrument panel
for the front outboard
passenger.
For knee airbags, the word
AIRBAG is on the lower part of
the instrument panel.
For seat-mounted side impact
airbags, the word AIRBAG is
on the side of the seatback or
side of the seat closest to
the door.
For roof-rail airbags, the word
AIRBAG is on the ceiling
or trim.
Airbags are designed to
supplement the protection
provided by seat belts. Even
though today's airbags are
also designed to help reduce
the risk of injury from the
force of an inflating bag, all
airbags must inflate very
quickly to do their job.
Here are the most important
things to know about the
airbag system:
{Warning
You can be severely injured
or killed in a crash if you are
not wearing your seat belt,
even with airbags. Airbags
are designed to work with
seat belts, not replace them.
Also, airbags are not
designed to inflate in every
crash. In some crashes seat
belts are the only restraint.
See When Should an Airbag
Inflate?
062.
Wearing your seat belt
during a crash helps reduce
your chance of hitting things
inside the vehicle or being
ejected from it. Airbags are
“supplemental restraints” to
the seat belts. Everyone in
(Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
60 Seats and Restraints
Warning (Continued)
the vehicle should wear a
seat belt properly, whether
or not there is an airbag for
that person.
{Warning
Because airbags inflate with
great force and faster than
the blink of an eye, anyone
who is up against, or very
close to, any airbag when it
inflates can be seriously
injured or killed. Do not sit
unnecessarily close to any
airbag, as you would be if
sitting on the edge of the
seat or leaning forward.
Seat belts help keep you in
position before and during a
crash. Always wear a seat
belt, even with airbags. The
driver should sit as far back
as possible while still
maintaining control of the(Continued)
Warning (Continued)
vehicle. The seat belts and
the front outboard
passenger airbags are most
effective when you are
sitting well back and upright
in the seat with both feet on
the floor.
Occupants should not lean
on or sleep against the door
or side windows in seating
positions with seat-mounted
side impact airbags and/or
roof-rail airbags.
{Warning
Children who are up against,
or very close to, any airbag
when it inflates can be
seriously injured or killed.
Always secure children
properly in the vehicle.(Continued)
Warning (Continued)
To read how, see Older
Children072 or
Infants and Young Children
0 74.
There is an airbag readiness
light on the instrument cluster,
which shows the airbag
symbol.
The system checks the airbag
electrical system for
malfunctions. The light tells
you if there is an electrical
problem. See Airbag
Readiness Light 0116.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
62 Seats and Restraints
Driver Side Shown,
Passenger Side Similar
The roof-rail airbags for the
driver, front outboard
passenger, and second row
outboard passengers are in
the ceiling above the side
windows.
{Warning
If something is between an
occupant and an airbag, the
airbag might not inflate
properly or it might force
the object into that person (Continued)
Warning (Continued)
causing severe injury or
even death. The path of an
inflating airbag must be kept
clear. Do not put anything
between an occupant and an
airbag, and do not attach or
put anything on the steering
wheel hub or on or near any
other airbag covering.
Do not use seat accessories
that block the inflation path
of a seat-mounted side
impact airbag.
Never secure anything to
the roof of a vehicle with
roof-rail airbags by routing a
rope or tie‐down through
any door or window opening.
If you do, the path of an
inflating roof-rail airbag will
be blocked.
When Should an
Airbag Inflate?
This vehicle is equipped with
airbags. See Airbag System
059. Airbags are designed to
inflate if the impact exceeds
the specific airbag system's
deployment threshold.
Deployment thresholds are
used to predict how severe a
crash is likely to be in time for
the airbags to inflate and help
restrain the occupants. The
vehicle has electronic sensors
that help the airbag system
determine the severity of the
impact. Deployment
thresholds can vary with
specific vehicle design.
Frontal airbags are designed
to inflate in moderate to
severe frontal crashes to help
reduce the potential for
severe injuries, mainly to the
driver's or front outboard
passenger's head and chest.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 63
Whether the frontal airbags
will or should inflate is not
based primarily on how fast
the vehicle is traveling.
It depends on what is hit, the
direction of the impact, and
how quickly the vehicle
slows down.
Frontal airbags may inflate at
different crash speeds
depending on whether the
vehicle hits an object straight
on or at an angle, and whether
the object is fixed or moving,
rigid or deformable, narrow
or wide.
Frontal airbags are not
intended to inflate during
vehicle rollovers, in rear
impacts, or in many side
impacts.
In addition, the vehicle has
advanced technology frontal
airbags. Advanced technology
frontal airbags adjust the
restraint according to crash
severity.Knee airbags are designed to
inflate in moderate to severe
frontal impacts. Knee airbags
are not designed to inflate
during vehicle rollovers, in rear
impacts, or in many side
impacts.
Seat-mounted side impact
airbags are designed to inflate
in moderate to severe side
crashes depending on the
location of the impact. These
airbags may also inflate in
some moderate to severe
frontal impacts. Seat-mounted
side impact airbags are not
designed to inflate in rollovers
or rear impacts.
A seat-mounted side impact
airbag is designed to inflate on
the side of the vehicle that is
struck.
Roof-rail airbags are designed
to inflate in moderate to
severe side crashes
depending on the location of
the impact. In addition, these
roof-rail airbags may inflate
during a rollover or in a severefrontal impact. Roof-rail
airbags are not designed to
inflate in rear impacts. Both
roof-rail airbags may inflate
when either side of the vehicle
is struck, if the sensing system
predicts that the vehicle is
about to roll over on its side,
or in a severe frontal impact.
In any particular crash, no one
can say whether an airbag
should have inflated simply
because of the vehicle
damage or repair costs.
What Makes an
Airbag Inflate?
In a deployment event, the
sensing system sends an
electrical signal triggering a
release of gas from the
inflator. Gas from the inflator
fills the airbag causing the bag
to break out of the cover. The
inflator, the airbag, and related
hardware are all part of the
airbag module.
For airbag locations, see
Where Are the Airbags?
061.