change time CADILLAC CT4 2023 Repair Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
504 OnStar
Unable to Connect to
OnStar Message
If there is limited cellular
coverage or the cellular
network has reached
maximum capacity, this
message may come on. Press
Qto try the call again or try
again after driving a few miles
into another cellular area.
Vehicle and Power Issues
OnStar services require a
vehicle electrical system,
wireless service, and GPS
satellite technologies to be
available and operating for
features to function properly.
These systems may not
operate if the battery is
discharged or disconnected.
Add-on Electrical
Equipment
The OnStar system is
integrated into the electrical
architecture of the vehicle. Do
not add any electrical equipment. See Add-On
Electrical Equipment
0366.
Added electrical equipment
may interfere with the
operation of the OnStar
system and cause it to not
operate.
Vehicle Software Updates
OnStar or GM may remotely
deliver software updates or
changes to the vehicle without
further notice or consent.
These updates or changes
may enhance or maintain
safety, security, or the
operation of the vehicle or the
vehicle systems. Software
updates or changes may
affect or erase data or
settings that are stored in the
vehicle, such as saved
navigation destinations or
pre-set radio stations. Neither
OnStar nor GM is responsible
for any affected or erased
data or settings. These
updates or changes may also
collect personal information.
Such collection is described in the OnStar privacy statement
or separately disclosed at the
time of installation. These
updates or changes may also
cause a system to
automatically communicate
with GM servers to collect
information about vehicle
system status, identify
whether updates or changes
are available, or deliver
updates or changes. An active
OnStar agreement constitutes
consent to these software
updates or changes and
agreement that either OnStar
or GM may remotely deliver
them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada).
We recommend that you
review it. If you have any
questions, call
1-888-4ONSTAR
(1-888-466-7827) or press
Q
to speak with an Advisor.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
508 Connected Services
vehicles, Wi-Fi can also be
managed from the Wi-Fi
Hotspot menu.
MyCadillac Mobile App (If
Available)
Download the myCadillac
mobile app to compatible
Apple and Android
smartphones. Cadillac users
can access the following
services from a smartphone:
.Remotely start/stop the
vehicle, if factory-equipped.
.Lock/unlock doors,
if equipped with automatic
locks.
.Activate the horn and lamps.
.Check the vehicle fuel level,
oil life, or tire pressure,
if factory-equipped with the
Tire Pressure Monitor
System.
.Send destinations to the
vehicle.
.Locate the vehicle on a map
(U.S. market only).
.Turn the vehicle's Wi-Fi
hotspot on/off, manage
settings, and monitor data
consumption, if equipped.
.Locate a dealer and
schedule service.
.Request Roadside
Assistance.
.Set a parking reminder with
pin drop, take a photo, make
a note, and set a timer.
.Connect with Cadillac on
social media.
Features are subject to
change. For myCadillac mobile
app information and
compatibility, see
my.cadillac.com.
An active OnStar or
connected service plan may be
required. A compatible device,
factory-installed remote start,
and power locks are required.
Data rates apply. See
www.onstar.com for details
and system limitations.
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the
horn and flash the lamps.
Marketplace
OnStar Advisors can provide
offers from restaurants and
retailers on your route, help
locate hotels, or book a room.
These services vary by
market.
Diagnostics
By monitoring and reporting
on the vehicle’s key systems,
OnStar Advanced Diagnostics,
if equipped, provides a way to
keep up on maintenance.
Capabilities vary by model. See
www.onstar.com for details
and system limitations.
Features are subject to
change. For updates on
feature capabilities, see
my.cadillac.com. Message and
data rates may apply.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
514 INDEX
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . . 494
Front Heated and VentilatedSeats . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Pedestrian Braking (FPB) System . . . . . . . . . . . . . 346
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 355
Economy, Driving forBetter . . . . . . . . . . . . . . . . . . . . . . . 234
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . 357
Filling the Tank . . . . . . . . . . . . . 356
Foreign Countries . . . . . . . . . 355
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Prohibited Fuels . . . . . . . . . . . 355
Recommended . . . . . . 354, 355
Top Tier . . . . . . . . . . . . . . . . . . . . . . 354
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . . 407
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . 406
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 409 Fuses (cont'd)
Rear Compartment
Fuse Block . . . . . . . . . . . . . . . . . . 411
G
Garage Door Opener . . . . . . . . .141Programming . . . . . . . . . . . . . . . . 141
Gas Strut(s) . . . . . . . . . . . . . . . . . . . 402
Gauges
Engine CoolantTemperature . . . . . . . . . . 114, 115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Odometer . . . . . . . . . . . . . . . . . . . . . . 112
Speedometer . . . . . . . . . . . . . . . . . 112
Tachometer . . . . . . . . . . . . . . . . . . 113
Trip Odometer . . . . . . . . . . . . . . . 112
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 105
General Information Service andMaintenance . . . . . . . . . . . . . . 467
Towing . . . . . . . . . . . . . . . . . . . . . . . . 358
Vehicle Care . . . . . . . . . . . . . . . . 369
Global Positioning System (GPS) . . . . . . . . . . . . . . . . 183
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . 94 GM Mobility
Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . 487
Guidance Problems with theRoute . . . . . . . . . . . . . . . . . . . . . . . . . 184
H
Halogen Bulbs . . . . . . . . . . . . . . . . 403
Hazard WarningFlashers . . . . . . . . . . . . . . . . . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . 37
Head-Up Display (HUD) . . . . . 136
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 403
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . 403
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . 147
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 403
High-Beam On Light . . . . . . . 128
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 147
Lamps On Reminder . . . . . . . 128

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 515
HeatedMirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Steering Wheel . . . . . . . . . . . . . . 98
Ventilated Front Seats . . . . 45
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 266
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 225
High-Beam On Light . . . . . . . . . 128
High-Speed Operation . . . . . 423
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . 252
Hill Start Assist (HSA) . . . . . . 289
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . 51
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Hydraulic Clutch . . . . . . . . . . . . . 383
I
If the System Needs Service . . . . . . . . . . . . . . . . . . . . . . . . . 184
Ignition Positions . . . . . . . . . . . . . 261
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 27
Indicator Pedestrian Ahead . . . . . . . . . . 123
Vehicle Ahead . . . . . . . . . . . . . . . 123 Indicators
Warning Lights and
Gauges . . . . . . . . . . . . . . . . . . . . . . . 105
Infants and Young Children, Restraints . . . . . . . . . 74
Information Publication Ordering . . . . . 494
Infotainment Using the System . . . . . . . . . . 158
Infotainment System . . . . . . . 498
Inspection Multi-Point Vehicle . . . . . . . . . 472
Instrument Cluster . . . . 106, 108
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . 31
Introduction . . . . . . . . . . . . . . . . . 2, 155
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 447
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Operation . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . . 417
LampsCornering . . . . . . . . . . . . . . . . . . . . . 149
Courtesy . . . . . . . . . . . . . . . . . . . . . . 150
Daytime Running (DRL) . . . 147
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Exterior Controls . . . . . . . . . . . 145
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 147
Exterior Lighting Battery Saver . . . . . . . . . . . . . . 153
Flash-to-Pass . . . . . . . . . . . . . . . . 147
Front Turn Signal . . . . . . . . . . 404
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 147
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 118
On Reminder . . . . . . . . . . . . . . . . . 128
Reading . . . . . . . . . . . . . . . . . . . . . . . 150
Lane Change Alert (LCA) . . . . . . . 349
Keep Assist (LKA) . . . . . . . . . . 351
Keep Assist Light . . . . . . . . . . 122
Lap-Shoulder Belt . . . . . . . . . . . . . 54
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
520 INDEX
ShiftingInto Park . . . . . . . . . . . . . . . 267, 268
Out of Park . . . . . . . . . . . 269, 270
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . . 349
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . 149
Software Updates . . . . . . . . . . . 162
Special Application Services . . . . . . . . . . . . . . . . . . . . . . 473
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . 480
Speedometer . . . . . . . . . . . . . . . . . . .112
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 124
Start Assist, Hill . . . . . . . . . . . . . . 289
Start Vehicle, Remote . . . . . . . . 16
Starting the Engine . . . . . . . . . 263
Steering . . . . . . . . . . . . . . . . . . . . . . . . 236
Heated Wheel . . . . . . . . . . . . . . . . 98
Wheel Adjustment . . . . . . . . . . 98
Wheel Controls . . . . . . . . . . . . . 158
Stop/Start System . . . . . . . . . . 264
Storage Center Console . . . . . . . . . . . . . . 95
Compartments . . . . . . . . . . . . . . . 94
Cupholders . . . . . . . . . . . . . . . . . . . . 94
Glove Box . . . . . . . . . . . . . . . . . . . . . . 94 Storage (cont'd)
Umbrella . . . . . . . . . . . . . . . . . . . . . . . 95
Storage Areas Cargo ManagementSystem . . . . . . . . . . . . . . . . . . . . . . . . 96
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . 446
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Stuck Vehicle . . . . . . . . . . . . . . . . . 255
Summer Tires . . . . . . . . . . . . . . . . . 416
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 33
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Super Cruise . . . . . . . . . . . . . . . . . . . 316
Surround Vision System . . . . . . . . . . . . . . . . . . . . . . . . 336
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Navigation . . . . . . . . . . . . . . . . . . . . 175
System Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Brake Pad Life . . . . . . . . . . . . . 396
Driver Assistance . . . . . . . . . 333
Engine Air Filter Life . . . . . . 383
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . 342
Global Positioning . . . . . . . . . . 183
Infotainment . . . . . . . . . . . . . . . . 498 System (cont'd)
Rear Cross Traffic
Alert . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Surround Vision . . . . . . . . . . . . 336
T
Tachometer . . . . . . . . . . . . . . . . . . . . .113
Teen Driver . . . . . . . . . . . . . . . . . . . . . .211
Text Telephone (TTY) Users . . . . . . . . . . . . . . . . . . . . . . . . . . 486
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . . . . . . . 27
Immobilizer . . . . . . . . . . . . . . . . . . . . 27
Thigh Support Adjustment . . . . . . . . . . . . . . . . . . . . 39
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 All-Season . . . . . . . . . . . . . . . . . . . . 414
Buying New Tires . . . . . . . . . . 432
Chains . . . . . . . . . . . . . . . . . . . . . . . . 437
Designations . . . . . . . . . . . . . . . . . 418
Different Size . . . . . . . . . . . . . . . 433
If a Tire Goes Flat . . . . . . . . . 437
Inspection . . . . . . . . . . . . . . . . . . . 429
Low-Profile . . . . . . . . . . . . . . . . . . . 416
Pressure . . . . . . . . . . . . . . . 422, 423
Pressure Light . . . . . . . . . . . . . . 126

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 521
Tires (cont'd)Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . 425
Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 424
Rotation . . . . . . . . . . . . . . . . . . . . . . 429
Run-Flat . . . . . . . . . . . . . . . . . . . . . . . 415
Sealant and Compressor Kit . . . . . . . . . . . 439
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . 446
Self-Sealing . . . . . . . . . . . . . . . . . . 415
Sidewall Labeling . . . . . . . . . . . 417
Terminology and Definitions . . . . . . . . . . . . . . . . . . 419
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 434
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . 435
Wheel Replacement . . . . . . 436
When It Is Time for
New Tires . . . . . . . . . . . . . . . . . . . 431
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 414
Top Tier Fuel . . . . . . . . . . . . . . . . . 354
Towing DrivingCharacteristics . . . . . . . . . . . 358 Towing (cont'd)
Equipment . . . . . . . . . . . . . . . . . . . 365
General Information . . . . . . 358
Recreational Vehicle . . . . . 454
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . 363
Track Events and Competitive Driving . . . . . . . 238
Traction Control System(TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Control/Electronic
Stability Control . . . . . . . . . . 290
Limited-Slip Differential . . . . . . . . . . . . . . . . . . 301
Off Light . . . . . . . . . . . . . . . . . . . . . . 123
Trademarks and License Agreements . . . . . . . 215
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 363
Transmission
Automatic . . . . . . . . . . . . . . 272, 275
Fluid, Automatic . . . . . . . . . . . . 382
Fluid, Manual . . . . . . . . . . . . . . . . 382
Manual . . . . . . . . . . . . . . . . . . . . . . . . 283
Transportation
Program, Courtesy . . . . . . . . 490 Transporting
a Disabled
Vehicle . . . . . . . . . . . . . . . 450, 452
Trip Odometer . . . . . . . . . . . . . . . . .112
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TTY Users Customer Assistance . . . . 486
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . . 149
U
Umbrella Storage . . . . . . . . . . . . . . 95
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . . . 434
Universal Remote System . . . . . . . . . . . . . . . . . . . . . . . . . .141
Operation . . . . . . . . . . . . . . . . . . . . . 144
Programming . . . . . . . . . . . . . . . . 141
Updates Map Data . . . . . . . . . . . . . . . . . . . . . 184
Software . . . . . . . . . . . . . . . . . . . . . . 162
USB Port . . . . . . . . . . . . . . . . . . . . . . . . 166
Using Infotainment System . . . . . . 158
Navigation System . . . . . . . . . 170
This Manual . . . . . . . . . . . . . . . . . . . . . 2