Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . 29
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Instruments and Controls . . . . . . . . . . 82
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Infotainment System . . . . . . . . . . . . . 136
Climate Controls . . . . . . . . . . . . . . . . . . 202
Driving and Operating . . . . . . . . . . . . 208
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 322
Service and Maintenance . . . . . . . . . 407
Technical Data . . . . . . . . . . . . . . . . . . . . 422
Customer Information . . . . . . . . . . . . 428
Reporting Safety Defects . . . . . . . . . 438
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
Connected Services . . . . . . . . . . . . . . . 448
Index . . . . . . . . . . . . . . . . . . . . . . . . 451
Introduction
The names, logos, emblems, slogans,
vehicle model names, and vehicle
body designs appearing in this manual
including, but not limited to, GM, the
GM logo, the CADILLAC Emblem, and
CADILLAC CT4 are trademarks and/or
service marks of General Motors LLC,
its subsidiaries, affiliates, or licensors.
For vehicles first sold in Canada,
substitute the name“General Motors
of Canada Company ”for Cadillac
Motor Car Division wherever it
appears in this manual.
This manual describes features that
may or may not be on the vehicle
because of optional equipment that
was not purchased on the vehicle,
model variants, country specifications, features/applications that may not be
available in your region, or changes
subsequent to the printing of this
owner’s manual, including changes in
standard or optional content.
Refer to the purchase documentation
relating to your specific vehicle to
confirm the features.
Keep this manual in the vehicle for
quick reference.
Canadian Vehicle Owners
A French language manual can be
obtained from your dealer, at
www.helminc.com, or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce
guide en français auprès du
concessionnaire ou à l'adresse
suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Litho in U.S.A.
Part No. 84728178 B Second Printing©2021 General Motors LLC. All Rights Reserved.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INTRODUCTION 5
1.Air Vents 0207.
2. Exterior Lamp Controls 0128.
Turn Signal Lever. See Turn and
Lane-Change Signals 0131.
3. Tap Shift Controls (If Equipped). See Manual Mode (Electronic Shifter)
0 249 or
Manual Mode (Mechanical Shifter)
0 248.
4. Cruise Control 0266.
Adaptive Cruise Control (Advanced)
0 269 (If Equipped).
Forward Collision Alert (FCA) System
0 301 (If Equipped).
Heated Steering Wheel 083 (If
Equipped).
5. Instrument Cluster (Base Level) 089
or
Instrument Cluster (Uplevel) 091.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) (Base Level) 0109 or
Driver Information Center (DIC)
(Uplevel) 0112.
6. Steering Wheel Controls 0139 (If
Equipped).
7. Windshield Wiper/Washer 083. 8. Infotainment. See
Overview0137.
9. Light Sensor. See Automatic
Headlamp System 0130.
10. Hazard Warning Flashers 0131.
11. Dual Automatic Climate Control
System 0202.
12. Heated and Ventilated Front Seats
037 (If Equipped).
13. Lane Keep Assist (LKA) 0309 (If
Equipped).
14. Traction Control/Electronic Stability
Control 0257.
Stop/Start Disable Switch. See Stop/
Start System 0235.
Automatic Vehicle Hold (AVH) 0256.
MODE Button or
«/ªButton
(V-Series Only). See Driver Mode
Control 0258.
15. Wireless Charging Pad (If Equipped) (Out of View). See
Wireless Charging 086.
16. Park Assist Button. See Assistance
Systems for Parking or Backing
0 295. 17. Shift Lever. See
Automatic
Transmission (Mechanical Shifter)
0 242 or
Automatic Transmission (Electronic
Shifter) 0244.
See Manual Transmission 0250.
18. ENGINE START/STOP Button. See Ignition Positions 0232.
19. Horn 083.
20. Steering Wheel Adjustment 083.
21. Head-Up Display (HUD) 0115 (If
Equipped).
22. Hood Release (Out of View). See Hood 0324.
23. Instrument Panel Illumination
Control 0132.
24. Data Link Connector (DLC) (Out of View). See Malfunction Indicator
Lamp (Check Engine Light) 099.
25. Electric Parking Brake 0254 (If
Equipped).
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
8 KEYS, DOORS, AND WINDOWS
Q:Press to lock all doors and the fuel
door, if equipped. The turn signal
indicators may flash and/or the horn
may sound on the second press to
indicate locking. See Vehicle
Personalization 0120.
Pressing
Qmay also arm the alarm
system. See Vehicle Alarm System 020.
If equipped with remote folding
mirrors, pressing
Qon the remote key
may fold the mirrors. See Folding
Mirrors 023.
K:Press to unlock the driver door
and the fuel door, if equipped. Press
again within five seconds to unlock all
doors. The remote key can be programmed to unlock all doors on
the first button press. See
Vehicle
Personalization 0120. When remotely
unlocking the vehicle at night, the
headlamps and back-up lamps may
come on for about 30 seconds to light
your approach to the vehicle. The turn
signal indicators may flash to indicate
unlocking.
Pressing
Kwill disarm the alarm
system. See Vehicle Alarm System 020.
Press and hold
Kfor about
three seconds to remotely open the
windows, if enabled. See Vehicle
Personalization 0120.
If equipped with remote folding
mirror, pressing
Kon the remote key
may unfold the mirrors. See Folding
Mirrors 023.
S:PressStwice to start the engine
from outside the vehicle using the
remote key. See Remote Vehicle Start
0 13.
7:Press and release one time to
initiate vehicle locator. The exterior
lamps flash and the horn chirps three
times. Press and hold
7for more than three seconds to sound the panic
alarm. The horn sounds and the turn
signal lamps flash for 30 seconds,
or until
7is pressed again or the
vehicle is started.
X: Press twice to release the trunk.
Keyless Access Operation
The Keyless Access system lets you
lock and unlock the doors and access
the trunk without removing the
remote key from your pocket, purse,
briefcase, etc. The remote key must be
within 1 m (3 ft) of the trunk or door
being opened. The button is on the
outside door handle.
The Keyless Access system can be
programmed to be turned off or to
unlock all doors on the first door
handle press from the driver door.
Keyless unlocking can also be turned
off. See Vehicle Personalization 0120.
If equipped with memory seats,
remote keys 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 034.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 13
Remote Vehicle Start
This feature allows the engine to be
started from outside the vehicle. It is
not available on vehicles with a
manual transmission.
S:This button on the remote key is
for remote start.
The climate control system will use
the previous settings during a remote
start. The rear window defogger may
come on during remote start based on
cold ambient conditions. The rear
defog indicator light does not come on
during remote start.
If equipped, the heated and ventilated
front seats may also come on when
the vehicle personalization setting is
enabled. See Heated and Ventilated
Front Seats 037.
If equipped with a remote start heated
steering wheel, it may come on during
a remote start. See Heated Steering
Wheel 083. Laws in some local communities may
restrict the use of remote starters. For
example, some laws may require a
person using remote start to have the
vehicle in view. Check local
regulations for any requirements.
If your vehicle is low on fuel, do not
use the remote start feature. The
vehicle may run out of fuel.
The remote key range may be shorter
while the vehicle is running.
Other conditions can affect the
performance of the remote key. See
Remote Keyless Entry (RKE) System
0
7.
You are allowed multiple starts
totaling 30 minutes of engine run
time. The maximum run time of a
single start is 15 minutes, and it will
shut off automatically. You could do
three 10 minute starts if you manually
shut off after 10 minutes. The last
10 minute start would shut off
automatically as your total
30 minutes will have been used. Starting the Engine Using Remote
Start
1. Press
Stwice on the remote key.
The turn signal lamps will flash.
The lamps flash to confirm the
request to remote start the vehicle
has been received. During the
remote start, the parking lamps
will remain on as long as the
engine is running.
2. The engine will shut off after 15 minutes or after the remainder
of the 30 minute total running
time is used, unless you stop the
remote start before engine running
has completed or the vehicle is
turned on.
3. After entering the vehicle during a remote start, press the brake and
ENGINE START/STOP with the
remote key in the vehicle to drive
the vehicle.
Additional Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.
After two remote starts of 15 minutes,
or multiple shorter time starts
totaling 30 minutes have been used,
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 19
.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 Keyless
Entry (RKE) System Operation 07.Close the trunk by pulling on the
handle. Do not use the handle as a
tie-down. Do not press the touch pad
while closing the trunk; this will cause
the trunk lid to be unlatched.
The trunk has an electric latch. If the
vehicle has lost power or the battery
is disconnected, the trunk will not
open. If this happens, enter the rear
compartment by folding the rear seats
down, and pull the emergency release
handle to open the trunk.
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.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 23
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.
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.
4. Press
jor|again to deselect the
mirror.
Memory Mirrors
The vehicle may have memory
mirrors. See Memory Seats 034.
Side Blind Zone Alert (SBZA)
The vehicle may have SBZA. See Side
Blind Zone Alert (SBZA) 0307.
Lane Change Alert (LCA)
The vehicle may have LCA. See Lane
Change Alert (LCA) 0307.
Folding Mirrors
Manual Folding Mirrors
The mirrors can be folded inward
toward the vehicle to prevent damage
when going through an automatic car
wash. Push the mirror outward to
return it to the original position.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 25
Heated Mirrors
K:The rear window defogger also
heats the outside mirrors.
See Dual Automatic Climate Control
System 0202.
Automatic Dimming Mirror
If the vehicle has the automatic
dimming mirror, the driver outside
mirror automatically adjusts for the
glare of headlamps behind you.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors
and memory seats, the passenger and/
or driver mirror tilts to a preselected
position when the vehicle is in
R (Reverse). This allows the curb to be
seen when parallel parking. The
mirror(s) may move from their tilted
position when:
.The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about 30 seconds.
.The ignition is turned off.
.The vehicle is driven in R (Reverse)
above a set speed. Turn this feature on or off through
vehicle personalization. See
Vehicle
Personalization 0120.
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
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
SEATS AND RESTRAINTS 29
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . 30
Front Seats
Power Seat Adjustment . . . . . . . . . . . 31
Thigh Support Adjustment . . . . . . . . 32
Reclining Seatbacks . . . . . . . . . . . . . . . 32
Lumbar Adjustment . . . . . . . . . . . . . . . 33
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Memory Seats . . . . . . . . . . . . . . . . . . . . . . 34
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Buckle To Drive . . . . . . . . . . . . . . . . . . . . 41
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 44
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . . . . . . 47
Seat Belt Extender . . . . . . . . . . . . . . . . . 47
Safety System Check . . . . . . . . . . . . . . 47
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . 48
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 48
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . 48
Where Are the Airbags? . . . . . . . . . . . 50
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
What Makes an Airbag Inflate? . . . 52
How Does an Airbag Restrain? . . . 52
What Will You See after an Airbag
Inflates? . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Passenger Sensing System . . . . . . . . 54
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . 58
Airbag System Check . . . . . . . . . . . . . . 59
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . 59
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . 60
Infants and Young Children . . . . . . 61
Child Restraint Systems . . . . . . . . . . . 63
Where to Put the Restraint . . . . . . . 65
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . 66
Replacing LATCH System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . 73
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . . . . . . 73 Securing Child Restraints (With
the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . . . . . 75