2021 CADILLAC CT4 cruise control

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
INSTRUMENTS AND CONTROLS 119
Auto Rear Defog
This setting automatically turns the
rear defogger on when the engine is
started.
Touch Off or On.
Ionizer
If equipped and on, this feature helps
clean the air inside the vehicle and
remove contaminants such as pollen,
odors, and dust. SeeDual Automatic
Climate Control System 0196.
Touch Off or On.
Collision / Detection Systems
Touch and the following may display:
.Alert Type
.Forward Collision System
.Front Pedestrian Detection
.Adaptive Cruise Go Notifier
.Lane Change Alert
.Rear Camera Park Assist Symbols
.Rear Cross Traffic Alert
.Super Cruise Lane Change Alert Type
This setting specifies the type of
vehicle feedback provided, either a
beep or seat vibration, when you are
in danger of colliding with an object.
Touch Beeps or Safety Alert Seat.
Forward Collision System
This setting can alert of a potential
crash with a detected vehicle ahead
and can apply brakes to help reduce a
collision’s severity.
Touch Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature may help avoid or reduce
the harm caused by front-end crashes
with nearby pedestrians.
See
Front Pedestrian Braking (FPB)
System 0287.
Touch Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This setting determines if an alert will
appear when Adaptive Cruise Control
brings the vehicle to a complete stop
and the vehicle ahead of you starts
moving again. See Adaptive Cruise
Control (Advanced) 0251. Touch Off or On.
Lane Change Alert
This setting specifies if an alert will
display on the outside mirror to help
you avoid crashing into a vehicle in
your blind spot, or rapidly
approaching your blind spot, during a
lane change maneuver. See
Lane
Change Alert (LCA) 0289.
Touch Off or On.
Rear Camera Park Assist Symbols
This setting enables the Rear Camera
Park Assist Symbols. See Assistance
Systems for Parking or Backing 0277.
Touch Off or On.
Rear Cross Traffic Alert
This setting specifies if an alert will
display when the vehicle detects
approaching rear cross traffic when in
R (Reverse). See Assistance Systems for
Parking or Backing 0277.
Touch Off or On.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
120 INSTRUMENTS AND CONTROLS
Super Cruise Lane Change
When on, the vehicle can change
lanes while Super Cruise is active. The
vehicle will only steer to change lanes
when traffic allows .
Touch Off or On.
Comfort and Convenience
Touch and the following may display:
.Chime Volume
.Reverse Tilt Mirror
.Remote Mirror Folding
.Rain Sense Wipers
Chime Volume
This setting determines the chime
volume level.
Touch the controls on the
infotainment display to adjust the
volume.
Reverse Tilt Mirror
When on, the driver, passenger,
or both driver and passenger outside
mirrors will tilt downward when the
vehicle is shifted into R (Reverse) to
improve visibility of the ground near
the rear wheels. They may move from their tilted position when the vehicle
is shifted out of R (Reverse) or turned
off. See
Reverse Tilt Mirrors 025.
Touch Off, On - Driver and Passenger,
On - Driver, or On - Passenger.
Remote Mirror Folding
This setting adjusts the outside
mirrors when locking and unlocking
the vehicle. Press
Qon the remote key
or lock button on the door handle to
fold the mirrors in. Press
Kon the
remote key or unlock button on the
door handle to unfold the mirrors. See
Folding Mirrors 024.
Touch Off or On.
Rain Sense Wipers
This setting automatically turns on
the wipers when moisture is detected
and the wiper switch is in
intermittent mode.
Touch Disabled or Enabled.
Lighting
Touch and the following may display:
.Vehicle Locator Lights
.Exit Lighting Vehicle Locator Lights
This setting flashes the headlamps of
your vehicle when you press
Kon the
remote key.
Touch Off or On.
Exit Lighting
This setting specifies how long the
headlamps stay on after the vehicle is
turned off and exited.
Touch Off, 30 Seconds, 60 Seconds,
or 120 Seconds.
Power Door Locks
Touch and the following may display:
.Auto Door Unlock
.Delayed Door Lock
Auto Door Unlock
This setting allows selection of which
doors will automatically unlock when
the vehicle is shifted into P (Park).
Touch Off, All Doors, or Driver Door.
Delayed Door Lock
This setting delays the locking of the
vehicle’s doors.
Touch Off or On.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
INFOTAINMENT SYSTEM 185
In vehicles with a pushbutton start
system, if a Teen Driver and a
non-Teen Driver key are both present
at start up, the vehicle will recognize
the non-Teen Driver key to start the
vehicle. The Teen Driver settings will
not be active.
Manage Settings
Buckle To Drive :When turned ON,
Buckle to Drive prevents the driver
from shifting out of P (Park) for a
period of time if driver seat belt, and
on some vehicles, the passenger seat
belt, is not buckled. See Buckle To
Drive 041 and
Vehicle Personalization 0117.
Audio Volume Limit : Allows the
audio volume limit to be turned on or
off. Touch Set Audio Volume Limit to
choose the maximum allowable audio
volume level.
Set Audio Volume Limit : Allows a
maximum radio volume to be set. Use
the arrows to choose the maximum
allowable level for the audio volume.
Teen Driver Speed Limiter : Limits
the maximum speed of the vehicle.
When the speed limiter is turned on and the vehicle is started with a Teen
Driver key, the DIC displays a message
that the top speed is limited.
On certain vehicles, when the Speed
Limiter is turned ON, the vehicle’s
maximum acceleration will be limited.
The DIC will display a message that
the acceleration is limited.
Teen Driver Speed Warning :
Allows
the speed warning to be turned on or
off. Touch Set Teen Driver Speed
Warning to set the warning speed.
Set Teen Driver Speed Warning :
Displays a warning in the DIC when
exceeding a selectable speed. Choose
the desired speed warning level. The
speed warning does not limit the
speed of the vehicle.
SiriusXM Explicit Content Filter (if
equipped) : Allows the SiriusXM
Explicit Content Filter to be turned
ON or OFF. When ON, the teen driver
will not be able to listen to SiriusXM
stations that contain explicit content,
and the Explicit Content Filter
selection in the Audio Settings will be
unavailable for change. When Teen Driver is Active:
.The radio will mute when the
driver, or in some vehicles, the front
passenger seat belt, is not buckled.
The audio from any device paired to
the vehicle will also be muted.
.If an object, such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device, is on the
front passenger seat, it could cause
the radio to mute and prevent
shifting from P (Park) if Buckle to
Drive is ON. If this happens, remove
the object from the seat. See
Passenger Sensing System
053.
.Some safety systems, such as
Forward Collision Alert, if equipped,
cannot be turned off.
.The gap setting for the Forward
Collision Alert and Adaptive Cruise
Control, if equipped, cannot be
changed.
.When trying to change a safety
feature that is not configurable in
Teen Driver, the DIC displays a
message indicating that Teen Driver
is active and the action is not
available.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
186 INFOTAINMENT SYSTEM
.Super Cruise, if equipped, is not
available.
.Enhanced Low Fuel Warning (if
equipped)–When the vehicle is low
on fuel, the low fuel light on the
instrument cluster flashes and the
DIC low fuel warning cannot be
dismissed.
.Do not tow a trailer.
Report Card
The vehicle owner must secure the
driver’s consent to record certain
vehicle data when the vehicle is driven
with a registered Teen Driver key.
There is one Report Card per vehicle.
Data is only recorded when a
registered Teen Driver key is used to
operate the vehicle.
The Report Card data is collected from
the time Teen Driver is activated or
the last time the Report Card was
reset. The following items may be
recorded:
.Distance Driven –the total distance
driven.
.Maximum Speed –the maximum
vehicle speed detected.
.Overspeed Warnings –the number
of times the speed warning setting
was exceeded.
.Wide Open Throttle –the number
of times the accelerator pedal was
pressed nearly all the way down.
.Forward Collision Alerts –the
number of times the driver was
notified when approaching a vehicle
ahead too quickly and at potential
risk for a crash.
.Forward Automatic Braking, also
called Automatic Emergency
Braking (if equipped) –the number
of times the vehicle detected that a
forward collision was imminent and
applied the brakes.
.Reverse Automatic Braking (if
equipped) –the number of times
the vehicle detected that a rearward
collision was imminent and applied
the brakes.
.Traction Control –the number of
times the Traction Control System
activated to reduce wheel spin or
loss of traction.
.Stability Control –the number of
events which required the use of
electronic stability control.
.Antilock Braking System Active –
The number of Antilock Brake
System activations.
.Tailgating Alerts –the number of
times the driver was alerted for
following a vehicle ahead too
closely.
Report Card Data
Cumulative Data is saved for all trips
until the Report Card is reset or until
the maximum count is exceeded.
If the maximum count is exceeded for
a Report Card line item, that item will
no longer be updated in the Report
Card until it is reset. Each item will
report a maximum of 1,000 counts.
The distance driven will report a
maximum of 64,374 km (40,000 mi).
To delete Report Card data, do one of
the following:
.From the Report Card display, touch
Reset.
.Touch Clear All Teen Keys and PIN
from the Teen Driver menu. This
will also unregister any Teen Driver
keys and delete the PIN.
Forgotten PIN
See your dealer to reset the PIN.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
202 DRIVING AND OPERATING
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 203
Distracted Driving . . . . . . . . . . . . . . . . 203
Defensive Driving . . . . . . . . . . . . . . . . 204
Impaired Driving . . . . . . . . . . . . . . . . . 204
Control of a Vehicle . . . . . . . . . . . . . . 204
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Off-Road Recovery . . . . . . . . . . . . . . . . 206
Loss of Control . . . . . . . . . . . . . . . . . . . 206
Track Events and Competitive Driving (V-Series Only) . . . . . . . . . 207
Driving on Wet Roads . . . . . . . . . . . 211
Hill and Mountain Roads . . . . . . . . 212
Winter Driving . . . . . . . . . . . . . . . . . . . . 213
If the Vehicle Is Stuck . . . . . . . . . . . 214
Vehicle Load Limits . . . . . . . . . . . . . . 214
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 218
Composite Materials . . . . . . . . . . . . . 218
Ignition Positions . . . . . . . . . . . . . . . . 219
Starting the Engine . . . . . . . . . . . . . . 220
Stop/Start System . . . . . . . . . . . . . . . . 221
Engine Heater . . . . . . . . . . . . . . . . . . . . 222 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 223
Shifting Into Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Shifting Into Park (Electronic
Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Shifting out of Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Shifting out of Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . 226
Extended Parking . . . . . . . . . . . . . . . . . 226
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 226
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . . . . . . . . 227
Automatic Transmission (Electronic Shifter) . . . . . . . . . . . . . 229
Manual Mode (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Manual Mode (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 236
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 236
Antilock Brake System (ABS) . . . . 236
Electric Parking Brake . . . . . . . . . . . . 237
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 238
Hill Start Assist (HSA) . . . . . . . . . . . 238
Automatic VehicleHold (AVH) . . . . . . . . . . . . . . . . . . . . . 239
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 239
Driver Mode Control . . . . . . . . . . . . . 241
Competitive Driving Mode . . . . . . . 246
Limited-Slip Differential . . . . . . . . . 248
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 248
Adaptive Cruise Control (Advanced) . . . . . . . . . . . . . . . . . . . . . . 251
Super Cruise . . . . . . . . . . . . . . . . . . . . . . 260
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 275
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 277
Rear Pedestrian Alert . . . . . . . . . . . . 282
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
DRIVING AND OPERATING 203
Automatic EmergencyBraking (AEB) . . . . . . . . . . . . . . . . . . . 285
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Side Blind Zone Alert (SBZA) . . . . 289
Lane Change Alert (LCA) . . . . . . . . 289
Lane Keep Assist (LKA) . . . . . . . . . . 291
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 293
Recommended Fuel (LSY 2.0L L4
Turbo Engine) . . . . . . . . . . . . . . . . . . . 293
Recommended Fuel (L3B 2.7L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 294
Prohibited Fuels . . . . . . . . . . . . . . . . . . 294
Fuels in Foreign Countries . . . . . . . 294
Fuel Additives . . . . . . . . . . . . . . . . . . . . 294
Filling the Tank . . . . . . . . . . . . . . . . . . 295
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . . . . . . 296
Trailer Towing
General Towing Information . . . . 297
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 297
Trailer Towing (LSY 2.0L L4 Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Towing Equipment . . . . . . . . . . . . . . . 302
Conversions and Add-Ons
Add-On Electrical Equipment . . . 303
Driving Information
Driving for Better Fuel
Economy
Driving habits can affect fuel mileage.
Here are some driving tips to get the
best fuel economy possible:
.Set the climate controls to the
desired temperature after the engine
is started, or turn them off when
not required.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid abrupt
stops.
.Avoid idling the engine for long
periods of time.
.When road and weather conditions
are appropriate, use cruise control.
.Always follow posted speed limits or
drive more slowly when conditions
require.
.Keep vehicle tires properly inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with the
same TPC Spec number molded into
the tire's sidewall near the size.
.Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms and
can take your focus from the task of
driving. Exercise good judgment and
do not let other activities divert your
attention away from the road. Many
local governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep your
eyes on the road, keep your hands on
the steering wheel, and focus your
attention on driving.
.Do not use a phone in demanding
driving situations. Use a hands-free
method to place or receive
necessary phone calls.
.Watch the road. Do not read, take
notes, or look up information on
phones or other electronic devices.
.Designate a front seat passenger to
handle potential distractions.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
212 DRIVING AND OPERATING
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick
stop and could cause pulling to one
side. You could lose control of the
vehicle.
After driving through a large puddle
of water or a car/vehicle wash,
lightly apply the brake pedal until
the brakes work normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be very
cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water can
build up under the vehicle's tires so
they actually ride on the water. This
can happen if the road is wet enoughand you are going fast enough. When
the vehicle is hydroplaning, it has
little or no contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping equipment
in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper tread
depth. See
Tires0339.
.Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving on
flat or rolling terrain. Tips include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{Warning
Using the brakes to slow the vehicle
on a long downhill slope can cause
brake overheating, can reduce brake
performance, and could result in a
loss of braking. Shift the
transmission to a lower gear to let
the engine assist the brakes on a
steep downhill slope.
{Warning
Coasting downhill in N (Neutral) or
with the ignition off is dangerous.
This can cause overheating of the
brakes and loss of steering assist.
Always have the engine running
and the vehicle in gear.
.Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the center line.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
DRIVING AND OPERATING 213
.Be alert on top of hills; something
could be in your lane (e.g., stalled
car, crash).
.Pay attention to special road signs
(e.g., falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the
road creates less traction or grip, so
drive carefully. Wet ice can occur at
about 0 °C (32 °F) when freezing rain
begins to fall. Avoid driving on wet ice
or in freezing rain until roads can be
treated.
For slippery road driving:
.Accelerate gently. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick.
.Turn on Traction Control. See
Traction Control/Electronic Stability
Control0239.
.Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes should be
applied sooner than when on dry
pavement. See Antilock Brake System
(ABS) 0236.
See Driver Mode Control 0241.
.Allow greater following distance and
watch for slippery spots. Icy patches
can occur on otherwise clear roads
in shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice.
.Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby. If possible,
use Roadside Service. See Roadside
Service 0403. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside mirror.
{Warning
Snow can trap engine exhaust
under the vehicle. This may cause
exhaust gases to get inside. Engine
exhaust contains carbon monoxide
(CO), which cannot be seen or
smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in snow:
.Clear snow from the base of the
vehicle, especially any blocking
the exhaust pipe.
.Open a window about 5 cm (2 in)
on the vehicle side that is away
from the wind, to bring in
fresh air.
.Fully open the air outlets on or
under the instrument panel.
.Adjust the climate control
system to circulate the air inside
the vehicle and set the fan speed
to the highest setting. See
“Climate Control Systems.”
For more information about CO, see
Engine Exhaust 0226.