stop start CADILLAC CT4 2020 User Guide

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
106 INSTRUMENTS AND CONTROLS
Driver Mode Control Light
This light comes on when Sport Mode
is selected.
This light comes on when Snow/Ice
Mode is selected.
This light comes on when Track Mode
is selected. SeeDriver Mode Control
0 184.
This light comes on when V Mode is
selected. See Driver Mode Control
0 184.
This light comes on when My Mode is
selected. See Driver Mode Control
0 184.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information about
tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of the
tires are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display.
Stop as soon as possible, and inflate
the tires to the pressure value shown
on the Tire and Loading Information
label. See Tire Pressure 0275.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light will
come on at every ignition cycle. See
Tire Pressure Monitor Operation 0277.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
110 INSTRUMENTS AND CONTROLS
L/100 km (mpg) recorded since the
last time this menu item was reset.
This number reflects only the
approximate average fuel economy
that the vehicle has right now, and
will change as driving conditions
change. The Average Fuel Economy
can be reset by pressing
Vand
selecting yes or no while this display
is active.
Fuel Range : Shows the approximate
distance the vehicle can be driven
without refueling. LOW will be
displayed when the vehicle is low on
fuel. The fuel range estimate is based
on an average of the vehicle's fuel
economy over recent driving history
and the amount of fuel remaining in
the fuel tank.
Oil Life : Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message
will appear on the display. The oil
should be changed as soon as
possible. See Engine Oil0241. In addition to the engine oil life system
monitoring the oil life, additional
maintenance is recommended. See
Maintenance Schedule
0303.
The Oil Life display must be reset
after each oil change. It will not reset
itself. Do not reset the Oil Life display
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until the
next oil change. To reset the engine
oil life system, press
Vand then
select yes or no. See Engine Oil Life
System 0243.
Tire Pressure : Shows the
approximate pressures of all four tires.
Tire pressure is displayed in either
kilopascal (kPa) or in pounds per
square inch (psi). If the pressure is
low, the value for that tire is shown in
amber. See Tire Pressure Monitor
System 0276 and
Tire Pressure Monitor Operation 0277.
Fuel Economy : Displays average fuel
economy, the best fuel economy over
the selected distance, and a bar graph
showing instantaneous fuel economy. Average Speed :
Displays the average
vehicle speed of the vehicle in
kilometers per hour (km/h) or miles
per hour (mph). This average is based
on the various vehicle speeds recorded
since the last reset. Reset the average
speed by pressing the thumbwheel
while this display is active to show a
confirmation window to select yes
or no.
Timer : This display can be used as a
timer. To start the timer, press the
thumbwheel while this display is
active. The display will show the
amount of time that has passed since
the timer was last reset. To stop the
timer, press the thumbwheel briefly
while this display is active and the
timer is running.
Press the thumbwheel while this
display is active to reset the timer.
Follow Distance/Gap Setting : When
Adaptive Cruise Control (ACC) is not
engaged, the current follow time to
the vehicle ahead is displayed as a
time value on this page. When ACC
has been engaged, the display

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
146 DRIVING AND OPERATING
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three
control systems:
.Braking Skid —wheels are not
rolling.
. Steering or Cornering Skid —too
much speed or steering in a curve
causes tires to slip and lose
cornering force.
. Acceleration Skid —too much
throttle causes the driving wheels
to spin.
Defensive drivers avoid most skids by
taking reasonable care suited to
existing conditions, and by not
overdriving those conditions. But
skids are always possible.
If the vehicle starts to slide, follow
these suggestions:
. Ease your foot off the accelerator
pedal and steer the way you want
the vehicle to go. The vehicle may
straighten out. Be ready for a
second skid if it occurs. .
Slow down and adjust your driving
according to weather conditions.
Stopping distance can be longer
and vehicle control can be affected
when traction is reduced by water,
snow, ice, gravel, or other material
on the road. Learn to recognize
warning clues —such as enough
water, ice, or packed snow on the
road to make a mirrored surface
— and slow down when you have
any doubt.
. Try to avoid sudden steering,
acceleration, or braking, including
reducing vehicle speed by shifting
to a lower gear. Any sudden
changes could cause the tires to
slide.
Remember: Antilock brakes help avoid
only the braking skid.
Track Events and
Competitive Driving
(V-Series Only)
{Danger
High-performance features are
intended for use only on closed
tracks by experienced and qualified
drivers and should not be used on
public roads. High-speed driving,
aggressive cornering, hard braking,
and other high-performance driving
can be dangerous. Improper driver
inputs for the conditions may result
in loss of control of the vehicle,
which could injure or kill you or
others. Always drive safely.
Track events and competitive driving
may affect the vehicle warranty. See
the warranty manual before using the
vehicle for competitive driving.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 149
Caution
Brake fade will occur during this
track burnish procedure and can
cause brake pedal travel and force
to increase. This could extend
stopping distance until the brakes
are fully burnished.
When this procedure is performed as
instructed, it will not damage the
brakes. The brake pads will smoke and
produce an odor. The braking force
and pedal travel may increase. After
the procedure, the brake pads may
appear white at the rotor contact.
Perform this procedure only on dry
pavement, in a safe manner, and in
compliance with all local and state
ordinances/laws regarding motor
vehicle operation.
Brake Burnish Procedure 1. Apply the brakes 25 times starting at 100 km/h (60 mph) to
50 km/h (30 mph) while
decelerating at 0.4 g. This is a
medium brake application. Drive for at least 1 km (0.6 mi)
between applying the brakes.
This first step may be skipped if
there are more than 320 km
(200 mi) on the brake pads.
2. Apply the brakes 25 times starting at 100 km/h (60 mph) to
25 km/h (15 mph) while
decelerating at 0.8 g. This is a
hard brake application, without
activating the Antilock Brake
System (ABS). Drive for at least
1 km (0.6 mi) between
applications.
3. Cool down: Drive at 100 km/h (60 mph) for approximately
15 km (10 mi) without using the
brakes.
4. Apply the brakes 25 times from 100 km/h (60 mph) to 50 km/h
(30 mph) while decelerating at
0.4 g. This is a medium brake
application. Drive for at least
1 km (0.6 mi) between
applications.
As with all high performance brake
systems, some amount of brake squeal
is normal.
Wheel Alignment
Wheel alignment suggested specs for
track use:
. Front: -2.0 deg camber, 0.2 deg
total toe
. Rear: -1.7 deg camber, 0.2 deg
total toe
Vehicles Equipped with the
Original Equipment Tires
Follow the requirements and
recommendations for tire inflation
pressures while driving on various
types of tracks/courses. This helps to
achieve a well-balanced vehicle and
enhance tire traction performance.
Use good judgment to determine the
appropriate tire inflation pressure and
speeds for the track/course
configuration and environmental
conditions. Contact the tire
manufacturer if further assistance is
needed.
To maximize tire life, drive 800 km
(500 mi) prior to racetrack driving or
complete the minimum track running

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 153
{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
(Continued)
Warning (Continued)
fan speed to the highest
setting. See“Climate Control
Systems.”
For more information about CO, see
Engine Exhaust 0168.
To save fuel, run the engine for short
periods to warm the vehicle and then
shut the engine off and partially close
the window. Moving about to keep
warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle speed.
This keeps the battery charged to
restart the vehicle and to signal for
help with the headlamps. Do this as
little as possible, to save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the wheels
to free the vehicle when stuck in sand,
mud, ice, or snow. If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. See
Traction Control/
Electronic Stability Control 0182.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you or
others could be injured. The vehicle
can overheat, causing an engine
compartment fire or other damage.
Spin the wheels as little as possible
and avoid going above 56 km/h
(35 mph).
Rocking the Vehicle to Get it Out
Turn the steering wheel left and right
to clear the area around the front
wheels. Turn off any traction system.
Shift back and forth between
R (Reverse) and a low forward gear,
spinning the wheels as little as
possible. To prevent transmission
wear, wait until the wheels stop
spinning before shifting gears. Release
the accelerator pedal while shifting,
and press lightly on the accelerator

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
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DRIVING AND OPERATING 157
{Warning
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo
area of the vehicle. In the
cargo area, put them as far
forward as possible. Try to
spread the weight evenly.
.Never stack heavier things,
like suitcases, inside the
vehicle so that some of
them are above the tops of
the seats.
.Do not leave an unsecured
child restraint in the
vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat folded
down unless needed.
Starting and Operating
New Vehicle Break-In
Follow these recommended guidelines
during the first 2 400 km (1,500 mi) of
driving this vehicle. Parts have a
break-in period and performance will
be better in the long run.
For the first 2 400 km (1,500 mi):
. Avoid full throttle starts and
abrupt stops.
. Do not exceed 4000 engine rpm.
. Avoid driving at any one constant
speed, fast or slow.
. Avoid downshifting to brake or
slow the vehicle when the engine
speed will exceed 4000 rpm.
. Do not let the engine labor. Never
lug the engine in high gear at low
speeds.
. Do not participate in track events,
sport driving schools, or similar
activities during this break-in
period. .
Check engine oil with every
refueling and add if necessary. Oil
and fuel consumption may be
higher than normal during the
first 2 400 km (1,500 mi).
. To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
300 km (200 mi). New tires do not
have maximum traction and may
tend to slip.
. New brake linings also need a
break-in period. Avoid making
hard stops during the first
300 km (200 mi). This is
recommended every time brake
linings are replaced.
Composite Materials
This vehicle may be equipped with
parts containing carbon fiber,
sheet-molding compound, or other
composite materials. Dealer-installed
accessories may also contain
composite materials.