2020 CADILLAC CT4 brake

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INSTRUMENTS AND CONTROLS 103
On some vehicles the service electric
parking brake light should come on
briefly when the vehicle is started.
If it does not come on, have it fixed so
it will be ready to warn if there is a
problem. For vehicles with the
reconfigurable cluster, this light may
not come on when the vehicle is
started.
If this light stays on, the vehicle
should be taken to a dealer as soon as
possible. SeeElectric Parking Brake
0 179. A message may also display in
the Driver Information Center (DIC).
Antilock Brake System
(ABS) Warning Light
This warning light should come on
briefly when the vehicle is turned on.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem. If the light comes on while driving,
safely stop as soon as it is possible
and turn off the vehicle. Then turn on
the vehicle again to reset the system.
If the ABS warning light stays on,
or comes on again while driving, the
vehicle needs service. A chime may
also sound when the light stays on.
If the ABS warning light is the only
light on, the vehicle has regular
brakes, but ABS is not functioning.
If both the ABS warning light and the
brake system warning light are on,
ABS is not functioning and there is a
problem with the regular brakes. See
your dealer for service.
See
Brake System Warning Light 0102.
Automatic Vehicle Hold
(AVH) Light
This light comes on when AVH is
turned on. See Automatic Vehicle Hold
(AVH) 0181.
Lane Keep Assist (LKA)
Light
After the vehicle is started, this light
turns off and stays off if LKA has not
been turned on or is unavailable.
If equipped, this light is white if LKA
is turned on, but not ready to assist.
This light is green if LKA is turned on
and is ready to assist.
LKA may assist by gently turning the
steering wheel if the vehicle
approaches a detected lane marking.
The LKA light is amber when
assisting.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INSTRUMENTS AND CONTROLS 115
Vehicle Messages
Messages displayed on the Driver
Information Center (DIC) indicate the
status of the vehicle or some action
that may be needed to correct a
condition. Multiple messages may
appear one after another.
The messages that do not require
immediate action can be
acknowledged and cleared by pressing
the thumbwheel. The messages that
require immediate action cannot be
cleared until that action is performed.
All messages should be taken
seriously; clearing the message does
not correct the problem.
If a SERVICE message appears, see
your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
.Service Messages
. Fluid Levels
. Vehicle Security
. Brakes .
Steering
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
Reduced Acceleration Drive
with Care
This message displays when the
vehicle's propulsion power is reduced.
A reduction in propulsion power can
affect the vehicle's ability to
accelerate. If this message is on, but
there is no observed reduction in
performance, proceed to your
destination. The performance may be reduced the next time the vehicle is
driven. The vehicle may be driven
while this message is on, but
maximum acceleration and speed may
be reduced. Anytime this message
stays on, or displays repeatedly, the
vehicle should be taken to your dealer
for service as soon as possible.
Under certain operating conditions,
propulsion will be disabled. Try
restarting after the vehicle has been
off for two minutes.
Vehicle Speed Messages
SPEED LIMITED TO XXX KM/
H (MPH)
This message shows that the vehicle
speed has been limited to the speed
displayed. The limited speed is a
protection for various propulsion and
vehicle systems, such as lubrication,
thermal, brakes, suspension, Teen
Driver if equipped, or tires.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
116 INSTRUMENTS AND CONTROLS
Vehicle Personalization
The following are all possible vehicle
personalization features. Depending
on the vehicle, some may not be
available.
For System, Apps, and Personal
features and functions, see“Settings”
in the infotainment manual.
To access the vehicle
personalization menu:
1. Touch the Settings icon on the Home Page of the infotainment
display.
2. Touch Vehicle to display a list of available options.
3. Touch to select the desired feature setting.
4. Touch
9orRto turn a feature
off or on.
5. Touch
zto go to the top level of
the Settings menu.
The menu may contain the following:
Rear Seat Reminder
This allows for a chime and a message
when the rear door has been opened
before or during operation of the
vehicle.
Touch Off or On.
V Mode
Touch and the following may display:
. Engine Sound
. Steering
. Suspension
. Powertrain
. Brake Response
Engine Sound
This setting adjusts the sound of the
engine exhaust from a quiet to a loud
exhaust volume.
Touch Stealth, Tour, Sport, or Track.
Steering
This setting adjusts how the steering
feels from a lighter to a reduced assist
for more steering feel.
Touch Tour, Sport, or Track. Suspension
This setting adjusts the suspension
from a comfortable to a more
responsive tune.
Touch Tour, Sport, or Track.
Powertrain
This setting adjusts the throttle
response, gear shifting and engine
performance.
Touch Normal, Sport, Track,
or Snow/Ice.
Brake Response
This setting adjusts the brake pedal
response for specific driving
conditions or style.
Touch Tour, Sport, or Track.
My Mode
Touch and the following may display:
.
Engine Sound
. Steering
. Suspension
. Brake Response

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
INSTRUMENTS AND CONTROLS 117
Engine Sound
This setting adjusts the sound of the
engine exhaust from a quiet to a loud
exhaust volume.
Touch Stealth, Tour, Sport, or Track.
Steering
This setting adjusts how the steering
feels from a lighter to a reduced assist
for more steering feel.
Touch Tour, Sport, or Track.
Suspension
This setting adjusts the suspension
from a comfortable to a more
responsive tune.
Touch Tour, Sport, or Track.
Brake Response
This setting adjusts the brake pedal
response for specific driving
conditions or style.
Touch Tour, Sport, or Track.
Climate and Air Quality
Touch and the following may display:
.Auto Fan Speed .
Air Quality Sensor
. Auto Cooled Seats
. Auto Heated Seats
. Auto Defog
. Auto Rear Defog
. Ionizer
Auto Fan Speed
This setting specifies the amount of
airf low when the climate control fan
setting is Auto Fan.
Touch Low, Medium, or High.
Air Quality Sensor
This setting switches the system into
Recirculation Mode based on the
quality of the outside air.
Touch Off, Low Sensitivity, or High
Sensitivity.
Auto Cooled Seats
This setting automatically turns on
and regulates the ventilated seats
when the cabin temperature is warm.
See Heated and Ventilated Front Seats
0 40.
Touch Off or On. Auto Heated Seats
This setting automatically turns on
and regulates the heated seats when
the cabin temperature is cool. The
auto heated seats can be turned off by
using the heated seat buttons on the
center stack. See
Heated and Ventilated
Front Seats 040.
If equipped with auto heated steering
wheel, this feature will turn on when
the auto heated seats turn on.
Touch Off or On.
Auto Defog
This setting automatically turns the
front defogger on when the engine is
started.
Touch Off or On.
Auto Rear Defog
This setting automatically turns the
rear defogger on when the engine is
started.
Touch Off or On.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
118 INSTRUMENTS AND CONTROLS
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 0134.
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
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 controls the vehicle
response when detecting a vehicle
ahead of you. The Off setting disables
all FCA and AEB functions. With the
Alert and Brake setting, both FCA and
AEB are available. The Alert setting
disables AEB. See
Automatic
Emergency Braking (AEB) 0213.
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 0214.
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 0194.
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) 0217.
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 0204.
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 0204.
Touch Off or On.
Comfort and Convenience
Touch and the following may display:
. Chime Volume
. Reverse Tilt Mirror

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 141
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 142
Distracted Driving . . . . . . . . . . . . . . . . 143
Defensive Driving . . . . . . . . . . . . . . . . 143
Drunk Driving . . . . . . . . . . . . . . . . . . . . 144
Control of a Vehicle . . . . . . . . . . . . . . 144
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Off-Road Recovery . . . . . . . . . . . . . . . . 145
Loss of Control . . . . . . . . . . . . . . . . . . . 146
Track Events and Competitive Driving (V-Series Only) . . . . . . . . . 146
Driving on Wet Roads . . . . . . . . . . . 151
Hill and Mountain Roads . . . . . . . . 151
Winter Driving . . . . . . . . . . . . . . . . . . . . 152
If the Vehicle Is Stuck . . . . . . . . . . . 153
Vehicle Load Limits . . . . . . . . . . . . . . 154
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 157
Composite Materials . . . . . . . . . . . . . 157
Ignition Positions . . . . . . . . . . . . . . . . 158
Starting the Engine . . . . . . . . . . . . . . 160
Stop/Start System . . . . . . . . . . . . . . . . 161 Engine Heater . . . . . . . . . . . . . . . . . . . . 162
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 163
Shifting Into Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Shifting Into Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Shifting out of Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Shifting out of Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . 167
Active Fuel Management . . . . . . . . 167
Extended Parking . . . . . . . . . . . . . . . . . 167
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 168
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . . . . . . . . 169
Automatic Transmission (Electronic shifter) . . . . . . . . . . . . . . 171
Manual Mode (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Manual Mode (Electronic
Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 178
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 179
Antilock Brake System (ABS) . . . . 179
Electric Parking Brake . . . . . . . . . . . . 179
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 181
Hill Start Assist (HSA) . . . . . . . . . . . 181
Automatic VehicleHold (AVH) . . . . . . . . . . . . . . . . . . . . . 181
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 182
Driver Mode Control . . . . . . . . . . . . . 184
Competitive Driving Mode . . . . . . . 189
Limited-Slip Differential . . . . . . . . . 191
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 192
Adaptive Cruise Control . . . . . . . . . 194
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 203
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 204
Rear Pedestrian Alert . . . . . . . . . . . . 209
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
142 DRIVING AND OPERATING
Forward Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 213
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Side Blind Zone Alert (SBZA) . . . . 217
Lane Change Alert (LCA) . . . . . . . . 217
Lane Keep Assist (LKA) . . . . . . . . . . 219
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 221
Recommended Fuel (LSY 2.0L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 221
Recommended Fuel (L3B 2.7L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 221
Prohibited Fuels . . . . . . . . . . . . . . . . . . 222
Fuels in Foreign Countries . . . . . . . 222
Fuel Additives . . . . . . . . . . . . . . . . . . . . 222
Filling the Tank . . . . . . . . . . . . . . . . . . 222
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 224
Trailer Towing
General Towing Information . . . . 225
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 225
Trailer Towing . . . . . . . . . . . . . . . . . . . . 228
Towing Equipment . . . . . . . . . . . . . . . 230
Conversions and Add-Ons
Add-On Electrical Equipment . . . 231
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
144 DRIVING AND OPERATING
Drunk Driving
Death and injury associated with
drinking and driving is a global
tragedy.
{Warning
Drinking and then driving is very
dangerous. Your reflexes,
perceptions, attentiveness, and
judgment can be affected by even a
small amount of alcohol. You can
have a serious—or even fatal —
collision if you drive after drinking.
Do not drink and drive or ride with
a driver who has been drinking.
Ride home in a cab; or if you are
with a group, designate a driver
who will not drink.
Control of a Vehicle
Braking, steering, and accelerating are
important factors in helping to control
a vehicle while driving.
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is about
three-quarters of a second. In that
time, a vehicle moving at 100 km/h
(60 mph) travels 20 m (66 ft), which
could be a lot of distance in an
emergency.
Helpful braking tips to keep in mind
include:
. Keep enough distance between
you and the vehicle in front
of you.
. Avoid needless heavy braking.
. Keep pace with traffic.
If the engine ever stops or a brake
fault occurs, the brakes may lose
power assist. More effort will be
required to stop the vehicle and it can
take longer to stop.
Steering
Caution
To avoid damage to the steering
system, do not drive over curbs,
parking barriers, or similar objects
at speeds greater than 3 km/h
(1 mph). Use care when driving over
other objects such as lane dividers
and speed bumps. Damage caused
by misuse of the vehicle is not
covered by the vehicle warranty.