ECU CADILLAC CT5 2021 Owner's Manual

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
6 KEYS, DOORS, AND WINDOWS
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . 13
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Door Locks . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . 17
Automatic Door Locks . . . . . . . . . . . . 17
Lockout Protection . . . . . . . . . . . . . . . . 17
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 18
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 23
Vehicle Alarm System . . . . . . . . . . . . . 23
Steering Column Lock . . . . . . . . . . . . . 25
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 25
Immobilizer Operation . . . . . . . . . . . . 25
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 26
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 27 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 27
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 28
Automatic Dimming Mirror . . . . . . . 28
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 28
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 29
Manual Rearview Mirror . . . . . . . . . . 29
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Rear Camera Mirror . . . . . . . . . . . . . . . 29
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Power Windows . . . . . . . . . . . . . . . . . . . . 31
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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-14584312) -
2021 - CRC - 11/23/20
KEYS, DOORS, AND WINDOWS 11
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.
Programming with Recognized
Remote Keys
A new key can be programmed to the
vehicle when there are two
recognized keys.
To program, the vehicle must be in
RUN and all remote keys, both
currently recognized and new, must
be with you.1. Place the two recognized remote keys on the passenger seat.
2. Scroll to the DIC menu to "Remote Key Learn" menu and select.
The DIC displays READY FOR
REMOTE #3, 4, 5, ETC.
3. Place the new remote key into therear cupholder.
4. Press ENGINE START/STOP. When the remote key is learned, the DIC
display will show that the remote
key has been programmed.
5. Remove the remote key from the rear cupholder and press
KorQ
on the remote key.
To program additional remote keys,
repeat Steps 3–5.
When all additional remote keys
are programmed, press and hold
ENGINE START/STOP for
approximately 12 seconds to exit
programming mode. Programming without Recognized
Remote Keys
If two currently recognized remote
keys are not available, see your dealer
to program new remote keys.
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:

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
KEYS, DOORS, AND WINDOWS 23
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.
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, pressQon
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

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
24 KEYS, DOORS, AND WINDOWS
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.
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.
.Close DVD screens before leaving
the vehicle.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
26 KEYS, DOORS, AND WINDOWS
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the ignition is turned
on or to ACC/ACCESSORY and a valid
remote key is present in the vehicle.
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 (ACC/ACCESSORY, 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 Keyless Entry (RKE) System
Operation
07.
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 Keyless Entry
(RKE) System Operation 07.
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-14584312) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 35
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . 36
Front Seats
Power Seat Adjustment . . . . . . . . . . . 37
Lumbar Adjustment . . . . . . . . . . . . . . . 38
Thigh Support Adjustment . . . . . . . . 38
Reclining Seatbacks . . . . . . . . . . . . . . . 39
Memory Seats . . . . . . . . . . . . . . . . . . . . . . 39
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Buckle To Drive . . . . . . . . . . . . . . . . . . . . 47
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 49
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . . 52
Seat Belt Extender . . . . . . . . . . . . . . . . . 53
Safety System Check . . . . . . . . . . . . . . 53
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . 53 Replacing Seat Belt System Parts
after a Crash . . . . . . . . . . . . . . . . . . . . . . 54
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . 54
Where Are the Airbags? . . . . . . . . . . . 56
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
What Makes an Airbag Inflate? . . . 58
How Does an Airbag Restrain? . . . 58
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Passenger Sensing System . . . . . . . . 60
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . 64
Airbag System Check . . . . . . . . . . . . . . 65
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 65
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . 65
Infants and Young Children . . . . . . 67
Child Restraint Systems . . . . . . . . . . . 69
Where to Put the Restraint . . . . . . . 71
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . 72
Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . . . . . 78 Securing Child Restraints (With
the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . . 78
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . . . . . 80

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 45
2. Pull the lever on top of theseatback toward you to unlock the
seatback.
A red tab near the seatback lever
raises when the seatback is
unlocked.
3. Fold the seatback forward. Repeat Steps 2 and 3 to fold the
other seatback, if desired.
Raising the Seatback
{Warning
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked.
{Warning
A seat belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
sure that the seat belts are properly
routed and attached, and are not
twisted. 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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
50 SEATS AND RESTRAINTS
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. SeeChild
Restraint Systems 069. 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 060.
If the webbing locks in the latch
plate before it reaches the buckle,
tilt the latch plate flat to unlock.
4. Push the latch plate into the 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
0 53.
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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 53
A pregnant woman should wear a
lap-shoulder belt, and the lap portion
should be worn as low as possible,
below the rounding, throughout the
pregnancy.
The best way to protect the fetus is to
protect the mother. When a seat belt
is worn properly, it is more likely that
the fetus will not be hurt in a crash.
For pregnant women, as for anyone,
the key to making seat belts effective
is wearing them properly.
Seat Belt Extender
If the vehicle's seat belt will fasten
around you, you should use it.But if a seat belt is not long enough,
your dealer will order you an extender.
When you go in to order it, take the
heaviest coat you will wear, so the
extender will be long enough for you.
To help avoid personal injury, do not
let someone else use it, and use it
only for the seat it is made to fit. The
extender has been designed for adults.
Never use it for securing child
restraints. For more information on
the proper use and fit of seat belt
extenders see the instruction sheet
that comes with the extender.
Safety System Check
Periodically check the seat belt
reminder, seat belts, buckles, latch
plates, retractors, shoulder belt height
adjusters (if equipped), and seat belt
anchorages to make sure they are all
in working order. Look for any other
loose or damaged seat belt system
parts that might keep a seat belt
system from performing properly. See
your dealer to have it repaired. Torn,
frayed, or twisted seat belts may not
protect you in a crash. Torn or frayed
seat belts can rip apart under impact
forces. If a belt is torn or frayed, haveit replaced immediately. If a belt is
twisted, it may be possible to untwist
by reversing the latch plate on the
webbing. If the twist cannot be
corrected, ask your dealer to fix it.
Make sure the seat belt reminder light
is working. See
Seat Belt Reminders
0 101.
Keep seat belts clean and dry. See Seat
Belt Care 053.
Seat Belt Care
Keep belts clean and dry.
Seat belts should be properly cared for
and maintained.
Seat belt hardware should be kept dry
and free of dust or debris. As
necessary, exterior hard surfaces and
seat belt webbing may be lightly
cleaned with mild soap and water.
Ensure there is not excessive dust or
debris in the mechanism. If dust or
debris exists in the system please see
the dealer. Parts may need to be
replaced to ensure proper
functionality of the system.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 55
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. SeeWhen Should an
Airbag Inflate? 057.
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 the vehicle (Continued)
Warning (Continued)
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 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.
(Continued)
Warning (Continued)
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. To read
how, seeOlder Children 065 or
Infants and Young Children 067.
There is an airbag readiness light on
the instrument cluster, which shows
the airbag symbol.