2023 CADILLAC CT4 mirror

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
354 Driving and Operating
work at all. An LKA or LDW
unavailable message may
display if the systems are
temporarily unavailable. This
message could be due to a
blocked camera. The LKA
system does not need service.
Clean the outside of the
windshield behind the
rearview mirror.
LKA assistance and/or LDW
alerts may occur due to tar
marks, shadows, cracks in the
road, temporary or
construction lane markings,
or other road imperfections.
This is normal system
operation; the vehicle does not
need service. Turn LKA off if
these conditions continue.Fuel
Top Tier Fuel
GM recommends the use of
TOP TIER Detergent Gasoline
to keep the engine clean,
reduce engine deposits, and
maintain optimal vehicle
performance. Look for the
TOP TIER Logo or see
www.toptiergas.com for a list
of TOP TIER Detergent
Gasoline marketers and
applicable countries.
Recommended Fuel
(LSY 2.0L L4 Turbo
Engine)
Premium unleaded gasoline
meeting ASTM specification
D4814 with a posted octane
rating (R+M)/2 of 91 or greater
is recommended. If unavailable,
unleaded gasoline with a
posted octane rating of
87 may be used, but will result
in reduced performance and
driveability. If heavy knocking
is heard when using gasoline
rated at 91 or greater, the
engine needs service.
Do not use any fuel labeled
E85 or FlexFuel. Do not use
gasoline with ethanol levels
greater than 15% by volume.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 359
Warning (Continued)
damaged, and the repairs
would not be covered by the
vehicle warranty. Pull a
trailer only if all the steps in
this section have been
followed. Ask your dealer for
advice and information
about towing a trailer with
the vehicle.
Driving with a Trailer
Trailering is different than just
driving the vehicle by itself.
Trailering means changes in
handling, acceleration, braking,
durability, and fuel economy.
Successful, safe trailering
takes correct equipment, and
it has to be used properly.
The following information has
many time-tested, important
trailering tips and safety rules.
Many of these are important
for your safety and that of
your passengers. Read this
section carefully before pulling
a trailer.When towing a trailer:
.Become familiar with, and
follow all state and local laws
that apply to trailer towing.
These requirements vary
from state to state.
.State laws may require the
use of extended side view
mirrors. If your visibility is
limited or restricted while
towing, install extended side
view mirrors on your vehicle,
even if not required.
.Do not tow a trailer during
the first 800 km (500 mi) of
vehicle use to prevent
damage to the engine, axle,
or other parts.
.Perform the first oil change
before heavy towing.
.Do not drive over 800 km/h
(50 mph) and do not make
starts at full throttle during
the first 800 km (500 mi) of
trailer towing.
.Tow in D (Drive). If the
transmission downshifts too
often, a lower gear may be
selected using Manual Mode.
See Manual Mode
(Electronic Shifter)
0281 or
Manual Mode (Mechanical
Shifter) 0280.
If equipped, the following
driver assistance features
should be turned off when
towing a trailer:
.Adaptive Cruise
Control (ACC)
.Super Cruise Control
.Park Assist
.Automatic Parking
Assist (APA)
.Reverse Automatic
Braking (RAB)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
360 Driving and Operating
If equipped, the following
driver assistance features
should be turned to alert or
off when towing a trailer:
.Automatic Emergency
Braking (AEB)
.Intelligent Brake Assist (IBA)
.Front Pedestrian
Braking (FPB)
If equipped with Lane Change
Alert (LCA), the LCA detection
zones that extend back from
the side of the vehicle do not
move further back when a
trailer is towed. Use caution
while changing lanes when
towing a trailer.
If equipped with Rear Cross
Traffic Alert (RCTA), use
caution while backing up when
towing a trailer, as the RCTA
detection zones that extend
out from the back of the
vehicle do not move further
back when a trailer is towed.
{Warning
To prevent serious injury or
death from carbon monoxide
(CO), when towing a trailer:
.Do not drive with the
liftgate, trunk/hatch,
or rear-most
window open.
.Fully open the air outlets
on or under the
instrument panel.
.Adjust the climate control
system to a setting that
brings in only outside air.
See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see
Engine Exhaust 0271.
Towing a trailer requires
experience. The combination
of the vehicle and trailer is
longer and not as responsive
as the vehicle itself. Become
familiar with handling and braking by driving on a level
road surface before driving on
public roads.
The trailer structure, the tires,
and the brakes must be all be
rated to carry the intended
cargo. Inadequate trailer
equipment can cause the
combination to operate in an
unexpected or unsafe manner.
Before driving, inspect all
trailer hitch parts and
attachments, safety chains,
electrical connectors, lamps,
tires, and mirrors. See Towing
Equipment
0365. If the trailer
has electric brakes, start the
combination moving and then
manually apply the trailer
brake controller to check the
trailer brakes work. During the
trip, occasionally check that
the cargo and trailer are
secure and that the lamps and
any trailer brakes are working.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
510 INDEX
AlertLane Change . . . . . . . . . . . . . . . 349
Rear Cross Traffic . . . . . . . . . 341
Side Blind
Zone (SBZA) . . . . . . . . . . . . . . . 349
All-Season Tires . . . . . . . . . . . . . . 414
All-Wheel Drive . . . . . . . . 286, 400
AM-FM Radio . . . . . . . . . . . . . . . . . . 162
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . 166
Antilock Brake
System (ABS) . . . . . . . . . . . . . . . 286
Warning Light . . . . . . . . . . . . . . . . 121
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 455
Interior . . . . . . . . . . . . . . . . . . . . . . . . . 461
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . 204
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . 487
Assistance Systems
Driving . . . . . . . . . . . . . . . . . . . . . . . . 342
Parking and Backing . . . . . . 335
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 169
Automatic Dimming Mirrors . . . . . . . . . . . . . 30
Door Locks . . . . . . . . . . . . . . . . . . . . . 21 Automatic (cont'd)
Emergency
Braking (AEB) . . . . . . . . . . . . . 345
Emergency Braking (AEB) Disabled Light . . . . . 123
Headlamp System . . . . . . . . . . 148
Transmission . . . . . . . . . 272, 275
Transmission Fluid . . . . . . . . 382
Vehicle Hold Light . . . . . . . . . . 122
Automatic Transmission Manual Mode . . . . . . . . . 280, 281
Automatic Vehicle
Hold (AVH) . . . . . . . . . . . . . . . . . . . 289
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . 166
B
BatteryExterior LightingBattery Saver . . . . . . . . . . . . . . 153
Load Management . . . . . . . . . 152
Power Protection . . . . . . . . . . 153
Battery - North America . . . . . . . . . . . . . . . . .399, 447
Blade Replacement, Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Bluetooth (cont'd)
Overview . . . . . . . . . . . . . . . . 198, 199
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
Pad Life System . . . . . . . . . . . 396
System Warning Light . . . . 120
Brake Pad Life System . . . . 396
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Antilock . . . . . . . . . . . . . . . . . . . . . . . 286
Brake Assist . . . . . . . . . . . . . . . . 289
Electric Brake Boost . . . . . 286
Electric Parking Brake . . . . 287
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 235 AutomaticEmergency (AEB) . . . . . . . . 345
Reverse Automatic . . . . . . . 340
Braking System FrontPedestrian (FPB) . . . . . . . . . 346
Break-In, New Vehicle . . . . . . 259
Buckle To Drive . . . . . . . . . . . . . . . . 50
Bulb Replacement . . . . . . . . . . . 403 Front Turn SignalLamps . . . . . . . . . . . . . . . . . . . . . . . 404
Halogen Bulbs . . . . . . . . . . . . . . 403
Headlamp Aiming . . . . . . . . . . 403

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 511
Bulb Replacement (cont'd)High Intensity
Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 403
Buying New Tires . . . . . . . . . . . . 432
C
Calibration Compass . . . . . . . . . . . . . . . . . . . . . . 101
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . 370
California Proposition 65 Warning . . . . . . . . . . . . . . . . 1, 447
Camera Rear Vision (RVC) . . . . . . . . . 335
Canadian Vehicle Owners . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . 480
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . 271
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Winter Driving . . . . . . . . . . . . . . 253
Cargo Management System . . . . . . 96
Tie-Downs . . . . . . . . . . . . . . . . . . . . . 96
Caution, Danger, and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Center Console
Storage . . . . . . . . . . . . . . . . . . . . . . . . 95
Chains, Tire . . . . . . . . . . . . . . . . . . . 437
Charging System Light . . . . . . . . . . . . . . . . . 117
Wireless . . . . . . . . . . . . . . . . . . . . . . . 102
Check Engine Light
(Malfunction Indicator) . . . . .118
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . . . 74
Lower Anchors and Tethers for Children . . . . . . 80
Older Children . . . . . . . . . . . . . . . . 72
Securing . . . . . . . . . . . . . . . . . . 88, 90
Systems . . . . . . . . . . . . . . . . . . . . . . . . 77
Child Safety Locks . . . . . . . . . . . . 22
Circuit Breakers . . . . . . . . . . . . . 406
Cleaning Exterior Care . . . . . . . . . . . . . . . 455
Interior Care . . . . . . . . . . . . . . . . . 461
Climate Control Systems Dual Automatic . . . . . . . . . . . . . 225
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Cluster, Instrument . . . 106, 108
Clutch, Hydraulic . . . . . . . . . . . . 383
Collision Damage Repair . . . 491 Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . . 94
Compass . . . . . . . . . . . . . . . . . . . . . . . . 101
Competitive Driving Mode . . . . . . . . . . . . . . . . 298
Composite Materials . . . . . . . 260
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . . . . . . . . . . . 439
Connected Services Connections . . . . . . . . . . . . . . . . 507
Diagnostics . . . . . . . . . . . . . . . . . . 508
Navigation . . . . . . . . . . . . . . . . . . . 506
Connections Connected Services . . . . . . 507
Control Traction and
Electronic Stability . . . . . . 290
Control of a Vehicle . . . . . . . . 235
Controls Steering Wheel . . . . . . . . . . . . . 158
Convex Mirrors . . . . . . . . . . . . . . . . 28
Coolant
EngineTemperature
Gauge . . . . . . . . . . . . . . . . . . . 114, 115
Engine Temperature Warning Light . . . . . . . . . . . . . . 124

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 513
Driving (cont'd)Loss of Control . . . . . . . . . . . . . 237
Off-Road Recovery . . . . . . . . 237
Track Events and
Competitive . . . . . . . . . . . . . . . 238
Vehicle Load Limits . . . . . . . 255
Wet Roads . . . . . . . . . . . . . . . . . . . 251
Winter . . . . . . . . . . . . . . . . . . . . . . . . 253
Dual Automatic ClimateControl System . . . . . . . . . . . 225
E
ElectricBrake Boost . . . . . . . . . . . . . . . . . 286
Parking Brake . . . . . . . . . . . . . . . 287
Parking Brake Light . . . . . . . . 121
Electrical Equipment, Add-On . . . . . . . 366
System Overload . . . . . . . . . . 404
Electrical System Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . . 407
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 406
Instrument Panel
Fuse Block . . . . . . . . . . . . . . . . . 409 Electrical System (cont'd)
Rear Compartment
Fuse Block . . . . . . . . . . . . . . . . . . 411
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . 500
Engine Air Cleaner/Filter . . . . . . . . . . 384
Air Filter Life System . . . . . 383
Check Light
(Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 118
Compartment
Overview . . . . . . . . . . . . . . . . . . . 373
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . 114, 115
Coolant Temperature Warning Light . . . . . . . . . . . . . . 124
Cooling System . . . . . . . . . . . . 386
Drive Belt Routing . . . . . . . . . 482
Exhaust . . . . . . . . . . . . . . . . . . . . . . . 271
Heater . . . . . . . . . . . . . . . . . . . . . . . . 266
Oil Life System . . . . . . . . . . . . . . 381
Oil Pressure Light . . . . . . . . . . 127
Overheating . . . . . . . . . . . . . . . . . . 391
Power Messages . . . . . . . . . . . 141
Running While Parked . . . . 272
Starting . . . . . . . . . . . . . . . . . . . . . . 263 Entry Lighting . . . . . . . . . . . . . . . . . .151
Equipment, Towing . . . . . . . . . 365
Event Data Recorders . . . . . 497
Exit Lighting . . . . . . . . . . . . . . . . . . . .151
Extended Parking . . . . . . . . . . . . 271
Extender, Seat Belt . . . . . . . . . . . 57
Exterior
Lamp Controls . . . . . . . . . . . . . . 145
Lamps Off Reminder . . . . . . 147
Lighting Battery Saver . . . 153
F
FilterEngine Air Cleaner . . . . . . . . 384
Flash-to-Pass . . . . . . . . . . . . . . . . . . 147
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . 149
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 437
Floor Mats . . . . . . . . . . . . . . . . . . . . . 465
Fluid Automatic
Transmission . . . . . . . . . . . . . . 382
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 398
Washer . . . . . . . . . . . . . . . . . . . . . . . 393
Folding Mirrors . . . . . . . . . . . . . . . . . 29
Forward Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . . 342

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
INDEX 517
MediaAvoiding Untrusted
Devices . . . . . . . . . . . . . . . . . . . . . . 166
Memory Seats . . . . . . . . . . . . . . . . . . . 41
Messages Engine Power . . . . . . . . . . . . . . . 141
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 140
Vehicle Speed . . . . . . . . . . . . . . . 141
Mirrors Automatic Dimming . . . . . . . . . 30
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 31
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 28
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Interior Rearview . . . . . . . . . . . . . 31
Manual Rearview . . . . . . . . . . . . . 31
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Tilt in Reverse . . . . . . . . . . . . . . . . 30
Mode Driver Control . . . . . . . . . . . . . . 292
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . 424
Multi-band Antenna . . . . . . . . . . 166
Multi-Point Vehicle Inspection (MPVI) . . . . . . . . . . .472N
NavigationConnected Services . . . . . . 506
Destination . . . . . . . . . . . . . . . . . . . 176
Symbols . . . . . . . . . . . . . . . . . . . . . . . 175
Using the System . . . . . . . . . . 170
New Vehicle Break-In . . . . . . 259
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . .112 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . 237
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 378
Engine Oil Life System . . . . 381
Pressure Light . . . . . . . . . . . . . . 127
Older Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 72
Online Account . . . . . . . . . . . . . . . 486
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . 498
Additional Information . . . . 501
Overview . . . . . . . . . . . . . . . . . . . . . 499
OnStar Emergency . . . . . . . . . 500
OnStar Security . . . . . . . . . . . . . . 501
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Overheating, Engine . . . . . . . . . 391 Overview . . . . . . . . . . . . . . . . . . . . . . . . 155
Instrument Panel . . . . . . . . . . . . . . 5
P
Park
Assist . . . . . . . . . . . . . . . . . . 335, 338
Shifting Into . . . . . . . . . . . 267, 268
Shifting Out of . . . . . . 269, 270
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 270 Brake and P (Park)Mechanism Check . . . . . . . 400
Extended . . . . . . . . . . . . . . . . . . . . . 271
Over Things That Burn . . . 271
Parking or Backing Assistance Systems . . . . . . 335
Passenger Airbag Status Indicator . . . . 117
Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Sensing System . . . . . . . . . . . . . . 66
Pedestrian Ahead
Indicator . . . . . . . . . . . . . . . . . . . . . . . 123
Perchlorate Materials Requirements,
California . . . . . . . . . . . . . . . . . . . . . 370
Performance
Data Recorder (PDR) . . . . . . 192
Shifting Light . . . . . . . . . . . . . . . . 122