2020 CADILLAC CT4 ESP

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 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) -
2020 - crc - 4/28/20
160 DRIVING AND OPERATING
purposes. With the vehicle off, and the
brake pedal not applied, pressing and
holding the button for more than
five seconds will place the vehicle in
Service Mode. The instruments and
audio systems will operate as they do
in ON/RUN, but the vehicle will not be
able to be driven. The engine will not
start in Service Mode. Press the
button again to turn the vehicle off.
Starting the Engine
Shift to P (Park) or N (Neutral). To
restart the engine when the vehicle is
already moving, use N (Neutral) only.
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change the
way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty. See
Add-On Electrical Equipment0231.
Starting Procedure 1. With the Keyless Access system, the remote key must be in the
vehicle. Press ENGINE START/
STOP with the brake pedal
applied. When the engine begins
cranking, let go of the button.
The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the remote key is not in the
vehicle, if there is interference,
or if the remote key battery is
low, a Driver Information
Center (DIC) will display a
message. See Remote Keyless
Entry (RKE) System Operation 08.
Caution
Cranking the engine for long
periods of time, by trying to start
the engine immediately after
cranking has ended, can overheat
and damage the cranking motor,
and drain the battery. Wait at least
15 seconds between each try, to let
the cranking motor cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18 °C
or 0 °F), it could be flooded with
too much gasoline. Try pushing
the accelerator pedal all the way
to the floor and holding it there
as you press ENGINE START/
STOP. Wait at least 15 seconds
between each try, to allow the
cranking motor to cool down.
When the engine starts, release
the accelerator. If the vehicle
starts briefly but then stops
again, do the same thing. This
clears the extra gasoline from the
engine. Do not race the engine
immediately after starting it.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 171
(Drive). SeeManual Mode (Electronic
Shifter) 0177 or
Manual Mode (Mechanical Shifter)
0 176.
Caution
Spinning the tires or holding the
vehicle in one place on a hill using
only the accelerator pedal may
damage the transmission. The
repair will not be covered by the
vehicle warranty. If the vehicle is
stuck, do not spin the tires. When
stopping on a hill, use the brakes to
hold the vehicle in place.
While in Sport or Track Mode, the
vehicle monitors driving behavior, and
automatically enables Performance
Shift Features when spirited driving is
detected. These features maintain
lower transmission gears to increase
available engine braking and improve
acceleration response. The vehicle will
exit these features and return to Sport
or Track Mode normal operation after a short period when no spirited
driving is detected. See
Driver Mode
Control 0184.
Engine speeds may be increased while
driving at highway speeds while the
engine is still warming up.Automatic Transmission
(Electronic shifter)
The shift pattern is displayed in the
top of the shift lever. The selected
gear position will illuminate red on
the shift lever, while all others will be
displayed in white. If the shift is not immediate, as in very cold conditions,
the indicator on the shift lever may
flash until it is fully engaged.
The shift lever always starts from a
center position, represented by an up/
down arrow on the shift pattern. After
releasing the shift lever, it will return
to the center position.
The transmission does not operate
when the vehicle is off.
If the vehicle is in ACC/ACCESSORY,
the transmission can be shifted into
P (Park).
If the vehicle is turned off while at a
relatively high vehicle speed, the
transmission will automatically shift
to N (Neutral). Once the vehicle is
stopped, P (Park) is automatically
selected.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
182 DRIVING AND OPERATING
When Automatic Vehicle Hold (AVH)
is turned on and the vehicle is braked
to a stop, AVH prevents the vehicle
from moving during the transition
from brake pedal release to accelerator
pedal apply. The brakes release when
the accelerator pedal is applied. The
brakes may also release under other
conditions. Do not rely on AVH to
hold the vehicle.
If the accelerator pedal is not applied
within a few minutes, the Electric
Parking Brake will apply. The parking
brake will also apply if the driver door
is opened or the driver seat belt is
unfastened while AVH is holding the
vehicle.
AVH can be turned on by pressing
AUTO HOLD. The indicator light on
the switch will come on. The AVH
light on the instrument panel will
come on while AVH is actively holding
the vehicle. SeeAutomatic Vehicle Hold
(AVH) Light 0103.Ride Control Systems
Traction Control/Electronic
Stability Control
The vehicle has a Traction Control
System (TCS) and StabiliTrak/
Electronic Stability Control (ESC).
These systems help limit wheel slip
and assist the driver in maintaining
control, especially on slippery road
conditions.
TCS activates if it senses that any of
the drive wheels are spinning or
beginning to lose traction. When this
happens, the system brakes the
spinning wheel(s) and/or reduces
engine power to limit wheel spin.
StabiliTrak/ESC activates when the
computer senses a difference between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak/ESC selectively applies
braking pressure at any one of the
vehicle's brakes to help steer the
vehicle in the intended direction. If cruise control is being used and TCS
or StabiliTrak/ESC begins to limit
wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road conditions
allow.
Both systems come on automatically
when the vehicle is started and begins
to move. The systems may be heard or
felt while they are operating or while
performing diagnostic checks. This is
normal and does not mean there is a
problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but It may be necessary to
turn TCS off if the vehicle gets stuck
in sand, mud, ice, or snow. See
If the
Vehicle Is Stuck 0153 and “Turning
the Systems Off and On ”later in this
section.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 185
Tour Mode
Use for normal city and highway
driving to provide a smooth, soft ride.
This setting provides a balance
between comfort and handling. This is
the standard mode, and when
selected, no persistent indicator will
display. For further details on Tour
Mode see Driver Mode Selector
Attributes Affected.
Sport Mode
Use where road conditions or personal
preference demand a more controlled
response.
When selected, the Sport Mode
indicator will display.
In this mode, the vehicle monitors
driving behaviors and automatically
enables Performance Shift Features
when spirited driving is detected.
These features maintain lower
transmission gears to increase
available engine braking and improve
acceleration response. The vehicle will
exit this feature and return to normal
operation after a short period when no
spirited driving is detected. Thesteering will change to provide more
precise control. If the vehicle has
Magnetic Ride Control, the suspension
will change to provide better
cornering performance.
Competitive Driving Mode can be
accessed through this mode. See
Competitive Driving Mode
0189.
For further details on Sport Mode, see
Driver Mode Selector Attributes
Affected.Snow/Ice Mode
Use when more traction is needed
during slippery conditions.
Snow/Ice Mode will use a different
accelerator pedal map to optimize
traction on a slippery surface. The
accelerator pedal will reduce engine
torque at small pedal inputs.
When selected, the Snow/Ice Mode
indicator will display.
This feature is not intended for use
when the vehicle is stuck in sand,
mud, ice, snow, or gravel. If the
vehicle becomes stuck, see If the
Vehicle Is Stuck 0153. For further details on Snow/Ice Mode,
see Driver Mode Selector Attributes
Affected.
Track Mode ( V-Series Only)
Use when maximum vehicle handling
is desired. For use when driving on a
closed race course or a drag strip.
When selected, the Track Mode
indicator will display.
When in Track Mode, the automatic
transmission and steering will
function similar to Sport Mode. The
accelerator pedal is adjusted to give
maximum control during the highest
level of spirited driving. The Magnetic
Ride Control will be set to the
optimum level for vehicle
responsiveness. Performance Traction
Management (PTM) can be accessed
through this mode. See Performance
Traction.
For further details on Track Mode, see
Driver Mode Selector Attributes
Affected.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
186 DRIVING AND OPERATING
My Mode
My Mode is used to personalize
everyday driving. This mode is
designed to allow the diver to
configure vehicle sub-systems to their
own preference for city and normal
driving.
Through the center display, the
following vehicle sub-systems may be
available for customization in
this mode:
.Engine Sound: Stealth, Tour
(Default), Sport, Track
. Steering: Tour (default), Sport,
Track
. Suspension: Tour (default), Sport,
Track
. Brake Response: Tour (default),
Sport
For information on the range of
settings, see Driver Mode
Customization.
V-Mode (V-Series Only)
V-Mode is used to personalize
dynamic driving. This mode is
designed to allow the driver to
configure vehicle sub-systems to their
own preference for maximum
handling. V-Mode further enhances
the drivers experience by adding a
powertrain customization.
Through the center display, the
following vehicle sub-systems may be
available for customization in
this mode:
. Engine Sound: Stealth, Tour
(Default), Sport, Track
. Steering: Tour (default), Sport,
Track
. Suspension: Tour (default), Sport,
Track
. Brake Response: Tour (default),
Sport
For information on the range of
settings, see Driver Mode
Customization. There are six attributes that vary by
mode shown below. Not all vehicles
have all features, depending on the
vehicle option.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 187
Modes:TOUR
Default SPORT TRACK WEATHER
Powertrain TourSport Track Snow/Ice
Throttle Progression TourTourTrack Snow/Ice
Transmission Shift Mode TourSport Track Snow/Ice
Engine Sound TourSport Track Tour
Steering TourSport Track Tour
Suspension (if equipped with Magnetic Ride
Control) Tour
Sport Track Tour
Traction and Stability Control TourSport Track Tour
Competitive Driving Mode (if equipped) Not Available Available Not Available Not Available
Performance Traction Mode (if equipped) Not Available Not Available Available Not Available
Brake Response TourSport Sport Tour
Driver Mode Selector Attributes
Affected
Throttle Progression
Adjusts throttle sensitivity by
selecting how quick or slow the
throttle reacts to input. .
Snow/Ice - The accelerator pedal
will reduce engine torque at small
pedal inputs. This allows better
wheel control on slippery surfaces.
. Track - The accelerator pedal is
adjusted to give maximum control
during the highest level of spirited
driving. Transmission Shift Mode
Sport or Track Dynamic Performance
Mode (DPM) allows the transmission
to hold the current gear after a quick
release of a heavily applied accelerator
pedal. This provides greater engine
braking and enhanced vehicle control
without using the paddles. DPM
recognizes aggressive cornering, heavy