lights CADILLAC CT4 2022 Owner's Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
DRIVING AND OPERATING 301
Turning the Feature On or Off
Turn off RCTA when towing a trailer.
RCTA can also be turned on or off
through vehicle personalization. See
“Collision/Detection Systems”under
Vehicle Personalization 0120.
Assistance Systems for
Driving
If equipped, when driving the vehicle
in a forward gear, Forward Collision
Alert (FCA), Lane Departure Warning
(LDW), Lane Keep Assist (LKA), Side
Blind Zone Alert (SBZA), Lane Change
Alert (LCA), Automatic Emergency
Braking (AEB), and/or the Front
Pedestrian Braking (FPB) System can
help to avoid a crash or reduce crash
damage.
Forward Collision Alert
(FCA) System
The FCA system may help to avoid or
reduce the harm caused by front-end
crashes. When approaching a vehicle
ahead too quickly, FCA provides a red
flashing alert on the windshield and
rapidly beeps or pulses the driver seat. FCA also lights an amber visual alert
if following another vehicle too
closely.
FCA detects vehicles within a distance
of approximately 60 m (197 ft) and
operates at speeds above 8 km/h
(5 mph). If the vehicle has Adaptive
Cruise Control (ACC), it can detect
vehicles to distances of approximately
110 m (360 ft) and operates at all
speeds. See
Adaptive Cruise Control
(Advanced) 0269.
{Warning
FCA is a warning system and does
not apply the brakes. When
approaching a slower-moving or
stopped vehicle ahead too rapidly,
or when following a vehicle too
closely, FCA may not provide a
warning with enough time to help
avoid a crash. It also may not
provide any warning at all. FCA
does not warn of pedestrians,
animals, signs, guardrails, bridges,
construction barrels, or other
(Continued)
Warning (Continued)
objects. Be ready to take action and
apply the brakes. SeeDefensive
Driving 0210.
FCA can be disabled through vehicle
personalization. See "Collision/
Detection Systems" under Vehicle
Personalization 0120.
Detecting the Vehicle Ahead
FCA warnings will not occur unless
the FCA system detects a vehicle
ahead. When a vehicle is detected, the
vehicle ahead indicator will display
green. Vehicles may not be detected
on curves, highway exit ramps,
or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will
not detect another vehicle ahead until
it is completely in the driving lane.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
308 DRIVING AND OPERATING
How the System Works
The LCA symbol lights up in the
outside mirrors when the system
detects a moving vehicle in the next
lane over that is in the side blind zone
or rapidly approaching that zone from
behind. A lit LCA symbol indicates it
may be unsafe to change lanes. Before
making a lane change, check the LCA
display, check mirrors, glance over
your shoulder, and use the turn
signals.
Left Outside MirrorDisplayRight Outside
Mirror Display
When the vehicle is started, both
outside mirror LCA displays will
briefly come on to indicate the system
is operating. When the vehicle is in a
forward gear, the left or right outside
mirror display will light up if a moving
vehicle is detected in the next lane
over in that blind zone or rapidly
approaching that zone. If the turn signal is activated in the same
direction as a detected vehicle, this
display will flash as an extra warning
not to change lanes.
LCA can be disabled. When you
disable LCA, Side Blind Zone Alert is
also disabled. See
“Collision/Detection
Systems” underVehicle Personalization
0 120. If LCA is disabled by the driver,
the LCA mirror displays will not
light up.
When the System Does Not
Seem to Work Properly
The LCA system requires some driving
for the system to calibrate to
maximum performance. This
calibration may occur more quickly if
the vehicle is driving on a straight
highway road with traffic and roadside
objects (e.g., guardrails, barriers).
LCA displays may not come on when
passing a vehicle quickly, for a
stopped vehicle, or when towing a
trailer. 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. LCA may alert to objects
attached to the vehicle, such as a
trailer, bicycle, or object extending out
to either side of the vehicle. Attached
objects may also interfere with the
detection of vehicles. This is normal
system operation; the vehicle does not
need service.
LCA may not always alert the driver to
vehicles in the next lane over,
especially in wet conditions or when
driving on sharp curves. The system
does not need to be serviced. The
system may light up due to guardrails,
signs, trees, shrubs, and other
non-moving objects. This is normal
system operation; the vehicle does not
need service.
LCA may not operate when the LCA
sensors in the left or right corners of
the rear bumper are covered with
mud, dirt, snow, ice, or slush, or in
heavy rainstorms. For cleaning
instructions, see "Washing the
Vehicle" under
Exterior Care0397.
If the DIC still displays the system
unavailable message after cleaning

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
392 VEHICLE CARE
Caution
If any accessories are left on or
plugged in during the jump starting
procedure, they could be damaged.
The repairs would not be covered
by the vehicle warranty. Whenever
possible, turn off or unplug all
accessories on either vehicle when
jump starting.
4. Turn the ignition off. Turn off all lights and accessories in both
vehicles, except the hazard warning
flashers if needed.
{Warning
An electric fan can start up even
when the engine is not running and
can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Using a match near a battery can
cause battery gas to explode. People
have been hurt doing this, and
some have been blinded. Use a
flashlight if you need more light.
Battery fluid contains acid that can
burn you. Do not get it on you.
If you accidentally get it in your
eyes or on your skin, flush the place
with water and get medical help
immediately.
{Warning
Fans or other moving engine parts
can injure you badly. Keep your
hands away from moving parts
once the engine is running.
5. Connect one end of the red positive (+) cable to the remote
positive (+) terminal on the
discharged battery. 6. Connect the other end of the red
positive (+) cable to the positive (+)
terminal of the good battery.
7. Connect one end of the black negative (–) cable to the
negative (–) terminal of the good
battery.
Do not let the other end touch
anything until the next step. The
other end of the negative (–) cable
does not go to the dead battery.
It goes to a heavy, unpainted metal
engine part.
8. Connect the other end of the black negative (–) cable to the
negative (–) grounding point for the
discharged battery.
9. Start the engine in the vehicle with the good battery and run the
engine at idle speed for at least
four minutes.
10. Try to start the vehicle that had the dead battery. If it will not start
after a few tries, it probably needs
service.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
SERVICE AND MAINTENANCE 415
The following list is intended to
explain the services and conditions to
look for that may indicate services are
required.
Battery
The 12-volt battery supplies power to
start the engine and operate any
additional electrical accessories.
.To avoid break-down or failure to
start the vehicle, maintain a battery
with full cranking power.
.Trained dealer technicians have the
diagnostic equipment to test the
battery and ensure that the
connections and cables are
corrosion-free.
Belts
.Belts may need replacing if they
squeak or show signs of cracking or
splitting.
.Trained dealer technicians have
access to tools and equipment to
inspect the belts and recommend
adjustment or replacement when
necessary. Brakes
Brakes stop the vehicle and are crucial
to safe driving.
.Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
.Trained dealer technicians have
access to tools and equipment to
inspect the brakes and recommend
quality parts engineered for the
vehicle.
Fluids
Proper fluid levels and approved fluids
protect the vehicle’s systems and
components. See Recommended Fluids
and Lubricants 0417 for GM approved
fluids.
.Engine oil and windshield washer
fluid levels should be checked at
every fuel fill.
.Instrument cluster lights may come
on to indicate that fluids may be
low and need to be filled. Hoses
Hoses transport fluids and should be
regularly inspected to ensure that
there are no cracks or leaks. With a
multi-point inspection, your dealer
can inspect the hoses and advise if
replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage. The
brake lamps need to be checked
periodically to ensure that they light
when braking.
.With a multi-point inspection, your
dealer can check the lamps and
note any concerns.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INDEX 455
Exterior Lamp Controls . . . . . . . . . . . . 128
Exterior Lamps Off Reminder . . . . . . 130
Exterior Lighting Battery Saver . . . . 135
F
Filter,Engine Air Cleaner . . . . . . . . . . . . . . . . 336
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 130
Flashers, Hazard Warning . . . . . . . . . . 131
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Fluid Automatic Transmission . . . . . . . . . 334
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 23
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Front Seats Heated and Ventilated . . . . . . . . . . . . 37
Front Turn Signal Lamps . . . . . . . . . . 353
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Economy, Driving for Better . . . . . 209 Fuel (cont'd)
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 314
Filling the Tank . . . . . . . . . . . . . . . . . . . 312
Foreign Countries . . . . . . . . . . . . . . . . . 312
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning Light . . . . . . . . . 108
Prohibited Fuels . . . . . . . . . . . . . . . . . . 312
Recommended . . . . . . . . . . . . . . . . . . . . 311
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Fuses and Circuit Breakers . . . . . . . 355
Instrument Panel Fuse Block . . . . 358
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
G
Garage Door Opener . . . . . . . . . . . . . . . . 125Programming . . . . . . . . . . . . . . . . . . . . . . 125
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 351
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . . . 96, 97
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 95 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . 95
Trip Odometer . . . . . . . . . . . . . . . . . . . . . 95
Warning Lights and Indicators . . . 89
General Information Service and Maintenance . . . . . . . . 407
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 323
Global Positioning System (GPS) . . . . . . . . . . . . . . . . . . . . . . 162
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Guidance Problems with the Route . . . . . . . . . 163
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 352
Hazard Warning Flashers . . . . . . . . . . 131
HD Radio Technology . . . . . . . . . . . . . . 145
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 30
Head-up Display . . . . . . . . . . . . . . . . . . . . 115
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 130
Bulb Replacement . . . . . . . . . . . . . . . . 352
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 130

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INDEX 457
LightPerformance Shifting . . . . . . . . . . . . . 103
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Illumination Control . . . . . . . . . . . . . . 132
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . 98
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . 102
Automatic Vehicle Hold . . . . . . . . . . 103
Brake System Warning . . . . . . . . . . . 101
Charging System . . . . . . . . . . . . . . . . . . . 99
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . 99
Cruise Control . . . . . . . . . . . . . . . . . . . . . 109
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Driver Mode Control . . . . . . . . . . . . . . 106
Electric Parking Brake . . . . . . . . . . . . 102
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 105
Engine Oil Pressure . . . . . . . . . . . . . . . 107
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 130
High-Beam On . . . . . . . . . . . . . . . . . . . . 108
High/Low Beam Changer . . . . . . . . . 130
Lane Keep Assist . . . . . . . . . . . . . . . . . . 103
Low Fuel Warning . . . . . . . . . . . . . . . . 108 Lights (cont'd)
Seat Belt Reminders . . . . . . . . . . . . . . . 97
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 105
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 107
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 105
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 104
Limited-Slip Differential . . . . . . . . . . . . 266
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . 16
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lockout Protection . . . . . . . . . . . . . . . . 17
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 212
Low Fuel Warning Light . . . . . . . . . . . 108
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 365
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . 66
Lumbar Adjustment . . . . . . . . . . . . . . . . . 33 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 33M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 414
Maintenance Schedule . . . . . . . . . . . . . 408 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 417
Malfunction Indicator Lamp . . . . . . . . 99
Manual Mode . . . . . . . . . . . . . . . . . .248, 249
Manual Transmission . . . . . . . . . . . . . . 250 Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Map Data Updates . . . . . . . . . . . . . . . . . . 164
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Massage Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Matching Active Rev . . . . . . . . . . . . . . . . . . . . . . . . . 252
Media
Avoiding Untrusted Devices . . . . . 147
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 34
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 119
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 120
Mirrors Automatic Dimming . . . . . . . . . . . . . . . 25
Automatic Dimming Rearview . . . . 25

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
462 INDEX
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Turn and Lane-Change Signals . . . . 131
U
Umbrella Storage . . . . . . . . . . . . . . . . . . . . 80
Uniform Tire Quality Grading . . . . . . 380
Universal Remote System . . . . . . . . . . 125Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Programming . . . . . . . . . . . . . . . . . . . . . . 125
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Using the Navigation System . . . . . . 151
Using the System . . . . . . . . . . . . . . . . . . . 139
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . 20
Automatic Hold Light . . . . . . . . . . . . 103
Canadian Owners . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
IdentificationNumber (VIN) . . . . . . . . . . . . . 422, 423
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 228
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Personalization . . . . . . . . . . . . . . . . . . . 120
Remote Start . . . . . . . . . . . . . . . . . . . . . . . 13 Vehicle (cont'd)
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Speed Messages . . . . . . . . . . . . . . . . . . . 120
Towing . . . . . . . . . . . . . . . . . . . . . . 393, 395
Vehicle Ahead Indicator . . . . . . . . . . . . 104
Vehicle Care Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . 390
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 370
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Vehicle Hold
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 256
Vehicle Hold (AVH) Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 256
Vehicle Positioning . . . . . . . . . . . . . . . . . 163
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 207
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Voice Recognition . . . . . . . . . . . . . . . . . . 164
W
Warning
Brake System Light . . . . . . . . . . . . . . . 101
Caution and Danger . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Warnings
Hazard Flashers . . . . . . . . . . . . . . . . . . . 131
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 343
Wheels Alignment and Tire Balance . . . . . 382
Different Size . . . . . . . . . . . . . . . . . . . . . . 380
Replacement . . . . . . . . . . . . . . . . . . . . . . 382
When It Is Time for New Tires . . . . 378
Where to Put the Restraint . . . . . . . . . 65
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 351
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 83
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 364
Wiper Blade Replacement . . . . . . . . . . 350
Wireless Charging . . . . . . . . . . . . . . . . . . . 86