2023 CADILLAC CT5 ECU

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
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 . . . . . . . . . . . 21
Delayed Locking . . . . . . . . . . . . . . 21
Automatic Door Locks . . . . . . 21
Lockout Protection . . . . . . . . . 22
Safety Locks . . . . . . . . . . . . . . . . . . 22
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Vehicle Security
Vehicle Security . . . . . . . . . . . . . 28
Vehicle Alarm System . . . . . . 28
Steering Column Lock . . . . . . 31
Immobilizer . . . . . . . . . . . . . . . . . . . . . 31
Immobilizer Operation . . . . . . 31
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 32
Power Mirrors . . . . . . . . . . . . . . . 33
Folding Mirrors . . . . . . . . . . . . . . 33
Heated Mirrors . . . . . . . . . . . . . . 34Automatic Dimming
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reverse Tilt Mirrors . . . . . . . . 35
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 35
Manual Rearview Mirror . . . 35
Automatic Dimming Rearview Mirror . . . . . . . . . . . . 35
Rear Camera Mirror . . . . . . . . 35
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 38
Power Windows . . . . . . . . . . . . . 38
Sun Visors . . . . . . . . . . . . . . . . . . . . 40
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 40
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 CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
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 CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
28 Keys, Doors, and Windows
Emergency Trunk Release
Handle
Caution
Do not use the emergency
trunk release handle as a
tie-down or anchor point
when securing items in the
trunk as it could damage the
handle.
There is a glow-in-the-dark
emergency trunk release
handle on the trunk lid. This
handle will glow following exposure to light. Pull the
release handle to open the
trunk from the inside.Vehicle Security
This vehicle has
theft-deterrent features;
however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft
alarm system.
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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
30 Keys, Doors, and Windows
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.
.Close DVD screens before
leaving the vehicle.
Inclination and Intrusion
Sensor Disable Switch
It is recommended that the
intrusion and inclination
sensor be deactivated if pets
are left in the vehicle or the
vehicle is being transported.
With the vehicle turned off,
press
oin the front
overhead console. The
indicator light will come on
momentarily, indicating that
these sensors have been
disabled for the next alarm
system arming cycle.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
32 Keys, Doors, and Windows
The security light, in the
instrument cluster, comes on if
there is a problem with arming
or disarming the
theft-deterrent system.
The system has one or more
remote keys matched to an
immobilizer control unit in the
vehicle. Only a correctly
matched remote key will start
the vehicle. If the remote key
is ever damaged, you may not
be able to start your vehicle.
When trying to start the
vehicle, the security light may
come on briefly.
If the engine does not start
and the security light stays on,
there is a problem with the
system. Turn the ignition off
and try again.If the vehicle will not change
ignition modes (accessory
mode, on, off), and the remote
key appears to be undamaged,
try another remote key. Or,
you may try placing the
remote key in the backup
location. See Remote Key
Operation
09.
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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
42 Seats and Restraints
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . 43
Front Seats
Power Seat Adjustment . . . 44
Thigh SupportAdjustment . . . . . . . . . . . . . . . . . . 45
Reclining Seatbacks . . . . . . . . 45
Lumbar Adjustment . . . . . . . . 46
Massage . . . . . . . . . . . . . . . . . . . . . . . 47
Memory Seats . . . . . . . . . . . . . . . 48
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . 51
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 53
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 55
Buckle To Drive . . . . . . . . . . . . . . 56
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 57
Lap-Shoulder Belt . . . . . . . . . . 60
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . 63
Seat Belt Extender . . . . . . . . . 64 Safety System Check . . . . . . 64
Seat Belt Care . . . . . . . . . . . . . . . 65
Replacing Seat Belt
System Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Airbag System
Airbag System . . . . . . . . . . . . . . . 65
Where Are theAirbags? . . . . . . . . . . . . . . . . . . . . . . 67
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 69
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 70
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . 70
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 71
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . . 72
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 77
Adding Equipment to the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 77
Airbag System Check . . . . . . 78
Replacing Airbag System Parts after a Crash . . . . . . . 78
Child Restraints
Older Children . . . . . . . . . . . . . . . . 79
Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . . . 81
Child Restraint Systems . . . . . . . . . . . . . . . . . . . . . . 83
Where to Put the Restraint . . . . . . . . . . . . . . . . . . . . . 85
Lower Anchors and Tethers for Children
(LATCH System) . . . . . . . . . . . 87
Replacing LATCH System Parts After a Crash . . . . . . . 93
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 94
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . 96

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Seats and Restraints 55
To raise a seatback:1. Lift the seatback up. Make sure the center seat belt
and latch do not get
trapped behind the seat.
Push the seatback
rearward to lock it in place.
A red tab near the
seatback lever retracts
when the seatback is
locked in place.
2. Push and pull the top of the seatback to be sure it
is locked into position.
3. Reconnect the center seat belt mini-latch to the
mini-buckle. Do not let the
belt twist.
4. Pull on the center seat belt to make sure the mini-latch
is secure.
5. Repeat the steps to raise the other seatback,
if necessary.
When the seat is not in use, it
should be kept in the upright,
locked position.Seat Belts
This section describes how to
use seat belts properly, and
some things not to do.
{Warning
Do not let anyone ride
where a seat belt cannot be
worn properly. In a crash,
if you or your passenger(s)
are not wearing seat belts,
injuries can be much worse
than if you are wearing seat
belts. You can be seriously
injured or killed by hitting
things inside the vehicle
harder or by being ejected
from the vehicle. In addition,
anyone who is not buckled
up can strike other
passengers in the vehicle.
It is extremely dangerous to
ride in a cargo area, inside or
outside of a vehicle. In a
collision, passengers riding
in these areas are more (Continued)
Warning (Continued)
likely to be seriously injured
or killed. Do not allow
passengers to ride in any
area of the vehicle that is
not equipped with seats and
seat belts.
Always wear a seat belt, and
check that all passenger(s)
are restrained properly too.
This vehicle has indicators as
a reminder to buckle the seat
belts. See Seat Belt
Reminders 0122.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Seats and Restraints 61
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.
4. Push the latch plate intothe buckle until it clicks.
Pull up on the latch plate
to make sure it is secure.
If the belt is not long
enough, see Seat Belt
Extender 064. Position the release button
on the buckle so that the
seat belt could be quickly
unbuckled if necessary.
5. If equipped with a shoulder belt height adjuster, move
it to the height that is right
for you. See “Shoulder Belt
Height Adjuster” later in
this section for
instructions on use and
important safety
information.
6. To make the lap part tight, pull up on the
shoulder belt. It may be necessary to pull
the webbing firmly,
through the adjustable
stop, or move the
adjustable stop along the
webbing toward the
outboard floor anchor, to
fully tighten the lap belt
across the lap.
To unlatch the belt, push the
button on the buckle. The belt
should return to its stowed
position.
Slide the adjustable stop along
the webbing toward the guide
loop when the seat belt is not