2021 CADILLAC CT4 towing

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
228 DRIVING AND OPERATING
{Warning
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running unless you have
to. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, always set the
parking brake and move the shift
lever to P (Park). SeeShifting Into
Park (Mechanical Shifter) 0223 or
Shifting Into Park (Electronic Shifter)
0 224. If you are pulling a trailer,
see Driving Characteristics and
Towing Tips 0297.
Make sure the shift lever is fully in
P (Park) before starting the engine.
The vehicle has an electronic shift
lock release system. Fully apply the
regular brakes first and then press the
shift lever button before shifting from
P (Park) when the ignition is on. If you cannot shift out of P (Park), ease
pressure on the shift lever and push
the shift lever all the way into P (Park)
as you maintain brake application.
Then press the shift lever button and
move the shift lever into another gear.
See
Shifting out of Park (Mechanical
Shifter) 0225 or
Shifting out of Park (Electronic Shifter)
0 225.
Caution
Shifting to R (Reverse) while the
vehicle is moving forward could
damage the transmission. The
repairs would not be covered by the
vehicle warranty. Shift to
R (Reverse) only after the vehicle is
stopped.
R : Use this gear to back up.
At low vehicle speeds, R (Reverse) can
be used to rock the vehicle back and
forth to get out of snow, ice, or sand
without damaging the transmission.
See If the Vehicle Is Stuck 0214. N :
In this position, the engine does
not connect with the wheels. To
restart the engine when the vehicle is
already moving, use N (Neutral) only.
{Warning
Shifting into a drive gear while the
engine is running at high speed is
dangerous. Unless your foot is
firmly on the brake pedal, the
vehicle could move very rapidly.
You could lose control and hit
people or objects. Do not shift into
a drive gear while the engine is
running at high speed.
Caution
Shifting out of P (Park) or
N (Neutral) with the engine running
at high speed may damage the
transmission. The repairs would not
be covered by the vehicle warranty.
Be sure the engine is not running at
high speed when shifting the
vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
232 DRIVING AND OPERATING
The vehicle is not designed to stay in
N (Neutral) for more than
five minutes. It may automatically
shift into P (Park). N (Neutral) is not
intended for towing. If the vehicle
needs to be towed, seeTowing the
Vehicle 0369.
To shift into N (Neutral): 1. Move the shift lever forward to the first detent from the center
position.
.If the vehicle is in P (Park),
apply the brake pedal and press
the shift lock release button
while moving the shift lever
forward.
.N will illuminate in red.
2. After releasing the shift lever, it will return to the center position.
To shift out of N (Neutral): 1. Bring the vehicle to a complete stop.
2. Shift to the desired gear. If shifting from N (Neutral) to R (Reverse) the
shift lock release button will need
to be pressed. 3. After releasing the shift lever, it
will return to the center position.
Car Wash Mode
This vehicle includes a Car Wash
Mode that allows the vehicle to
remain in N (Neutral) for use in
automatic car washes.
Car Wash Mode (Engine Off –Driver
in Vehicle)
To place the vehicle in N (Neutral)
with the engine off and the vehicle
occupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Shift to N (Neutral).
4. Turn off the engine and release the brake pedal.
5. The indicator should continue to show N. If it does not, repeat
Steps 2–4.
6. The vehicle is now ready for the car wash. Car Wash Mode (Engine Off
–Driver
out of Vehicle)
To place the vehicle in N (Neutral)
with the engine off and the vehicle
unoccupied:
1. Drive to the entrance of the car wash.
2. Apply the brake pedal.
3. Open the door.
4. Shift to N (Neutral).
5. Turn off the engine and release the brake pedal.
6. The indicator should continue to show N. If it does not, repeat
Steps 2–5.
7. Exit the vehicle and close the door. The vehicle is now ready for the
car wash.
8. The vehicle may automatically shift to P (Park) upon re-entry.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
238 DRIVING AND OPERATING
correct operation of the EPB system,
or at the request of other safety
functions that utilize the EPB.
If the EPB fails to apply, block the rear
wheels to prevent vehicle movement.
EPB Release
To release the EPB:1. Turn the ignition on or to ACC/ ACCESSORY.
2. Apply and hold the brake pedal.
3. Press the EPB switch momentarily.
The EPB is released when the red
parking brake status light is off.
If the amber service parking brake
warning light is on, release the EPB by
pressing and holding the EPB switch.
Continue to hold the switch until the
red parking brake status light is off.
If either light stays on after release is
attempted, see your dealer.
Caution
Driving with the parking brake on
can overheat the brake system and
cause premature wear or damage to (Continued)
Caution (Continued)
brake system parts. Make sure that
the parking brake is fully released
and the brake warning light is off
before driving.
If you are towing a trailer and parking
on a hill, see Driving Characteristics
and Towing Tips 0297.
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to drive
away. Avoid rapid acceleration when
the EPB is applied, to preserve parking
brake lining life.
Brake Assist
Brake Assist detects rapid brake pedal
applications due to emergency braking
situations and provides additional
braking to activate the Antilock Brake
System (ABS) if the brake pedal is not
pushed hard enough to activate ABS
normally. Minor noise, brake pedal
pulsation, and/or pedal movement
during this time may occur. Continue
to apply the brake pedal as the driving situation dictates. Brake Assist
disengages when the brake pedal is
released.
Hill Start Assist (HSA)
{Warning
Do not rely on the HSA feature.
HSA does not replace the need to
pay attention and drive safely. You
may not hear or feel alerts or
warnings provided by this system.
Failure to use proper care when
driving may result in injury, death,
or vehicle damage. See
Defensive
Driving 0204.
When the vehicle is stopped on a
grade, Hill Start Assist (HSA)
temporarily prevents the vehicle from
rolling in an unintended direction
during the transition from brake pedal
release to accelerator pedal apply. The
brakes release when the accelerator
pedal is applied or automatically
release after a few seconds. The brakes
may also release under other
conditions. Do not rely on HSA to
hold the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
DRIVING AND OPERATING 259
guardrails, and other stationary
objects when entering or exiting a
curve. This is normal operation. The
vehicle does not need service.
Other Vehicle Lane Changes
ACC will not detect a vehicle ahead
until it is completely in the lane. The
brakes may need to be manually
applied.
Objects Not Directly in Front of Your
Vehicle
The detection of objects in front of
the vehicle may not be possible if:
.The vehicle or object ahead is not
within your lane.
.The vehicle ahead is shifted, not
centered, or is shifted to one side of
the lane.Driving in Narrow Lanes
Vehicles in adjacent traffic lanes or
roadside objects may be incorrectly
detected when located along the
roadway.
Do Not Use ACC on Hills and When
Towing a Trailer
Do not use ACC when driving on steep
hills or when towing a trailer. ACC will
not detect a vehicle in the lane while
driving on steep hills. If the brakes are
applied, ACC disengages.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake pedal.
.Press*.
.PressJ.Erasing Speed Memory
The ACC set speed is erased from
memory if
Jis pressed or if the
ignition is turned off.
Weather Conditions Affecting ACC
System operation may be limited
under snow, heavy rain, or road spray
conditions.
Accessory Installations and Vehicle
Modifications
Do not install or place any object
around the front camera windshield
area that would obstruct the front
camera view.
Do not install objects on top of the
vehicle that overhang and obstruct the
front camera, such as a canoe, kayak,
or other items.
Do not modify the hood, headlamps,
or fog lamps, as this may limit the
camera’s ability to detect an object.
Cleaning the Sensing System
The camera sensor on the windshield
behind the rearview mirror and the
radar sensors on the front of the
vehicle can become blocked by snow,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
262 DRIVING AND OPERATING
Warning (Continued)
.Always observe posted speed
limits. Only use Super Cruise at
or below the posted speed limit.
Super Cruise should not be used in
complex or uncertain driving
conditions, including:
.Not in construction zones.
.Not when approaching or exiting
toll plazas.
.Not when approaching an
intersection that is controlled
with a traffic light, stop sign,
or other traffic control device.
.Not when lane markings are not
present or cannot be detected.
For example, there is too much
glare, weather conditions are
poor, or lanes are poorly marked.
.Not on slippery or icy roads.
.Not in adverse weather
conditions, including rain, sleet,
fog, ice, or snow.
.Not on winding or hilly roads.
.Not for city driving. (Continued)
Warning (Continued)
.Not during heavy or emergency
braking.
.Not on surface streets.
.Not on a road shoulder, service
drive, or under an elevated
freeway.
.Not in tunnels.
.Not when towing a trailer.
.Not in a highway exit lane.
When Super Cruise is Available
Super Cruise Indicator
Super Cruise is designed to operate
only when:
.ACC is on. See Adaptive Cruise
Control (Advanced) 0251.
.Teen Driver is not active.
.The GPS detects the vehicle is on a
compatible highway.
.Both the camera and the radar
sensors are functioning and not
covered, obstructed, or damaged.
.The Driver Attention System (DAS)
detects the driver's head and eyes
are directed toward the road.
.The lane markings are clearly visible
and able to be detected by the
system.
Poor Conditions
Poor Conditions

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
DRIVING AND OPERATING 269
exiting a curve. This is normal
operation. The vehicle does not need
service.
Other Vehicles Entering Your Lane
Super Cruise may not detect a vehicle
that enters your lane, or may not
brake fast enough to avoid a crash.
You must manually brake and steer
the vehicle.Intersections; Vehicles Crossing the
Road Ahead
Super Cruise will not brake the vehicle
when approaching an intersection that
is controlled by a traffic light or stop
sign. Super Cruise will not detect
vehicles crossing the road ahead,
including at intersections, and will not
automatically steer or brake to
prevent a collision. You must
manually brake and steer the vehicle.
Towing a Trailer
Do not use Super Cruise when towing
a trailer. For towing capability, see
Trailer Towing (LSY 2.0L L4 Engine)
0
300.
Super Cruise on Hills
Do not use Super Cruise while driving
on steep hills. Super Cruise Indicator Light
Summary
The steering wheel light bar and
instrument cluster light provide the
following important information about
Super Cruise operation:

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
282 DRIVING AND OPERATING
Use caution while backing up when
towing a trailer, as the RCTA
detection zones that extend out from
the back of the vehicle do not move
further back when a trailer is towed.
SeeRadio Frequency Statement 0409.
Turning the Features On or Off
TouchXon the center stack to turn
on or off the Front and Rear Park
Assist, Reverse Automatic Braking
(RAB), and the Backing Warning
System at the same time. The
indicator light next to the button
comes on when the features are on
and turns off when the features have
been disabled.
Turn off Park Assist, RCTA, and RAB
when towing a trailer.
To turn the RPA symbols or guidance
lines (on some models) on or off, see
“Rear Camera Park Assist Symbols”
under Vehicle Personalization 0117.
RCTA can also be turned on or off
through vehicle personalization. See
“Collision/Detection Systems” under
Vehicle Personalization 0117.
Rear Pedestrian Alert
Under certain conditions, this feature
can provide alerts for a pedestrian
within the system’s range directly
behind the vehicle. This feature only
works in R (Reverse) below 12 km/h
(8 mph), and detects pedestrians up to
8 m (26 ft) away during daytime
driving. During nighttime driving,
feature performance is very limited.
Rear Pedestrian Alert Indicator
When a pedestrian is detected within
the system’s range directly behind the
vehicle, this symbol flashes amber on
the infotainment display, along with
two beeps from the rear, or if
equipped, two pulses from both sides
of the driver seat. When a pedestrian
is detected close to the vehicle, the
symbol flashes red on the
infotainment display, along with seven beeps from the rear, or if equipped,
seven pulses from both sides of the
driver seat.
{Warning
Rear Pedestrian Alert does not
automatically brake the vehicle.
It also does not provide an alert
unless it detects a pedestrian, and it
may not detect all pedestrians if:
.The pedestrian is not directly
behind the vehicle, fully visible
to the Rear Vision Camera (RVC),
or standing upright.
.The pedestrian is part of a group.
.The pedestrian is a child.
.Visibility is poor, including
nighttime conditions, fog, rain,
or snow.
.The RVC is blocked by dirt, snow,
or ice.
.The RVC, taillamps, or back-up
lamps are not cleaned or in
proper working condition.
.The vehicle is not in R (Reverse).
(Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
DRIVING AND OPERATING 287
AEB and IBA can be disabled through
vehicle personalization. See“Collision/
Detection Systems” underVehicle
Personalization 0117.
{Warning
Using AEB or IBA while towing a
trailer could cause you to lose
control of the vehicle and crash.
Turn the system to Alert, or if the
vehicle has ACC to Off, when
towing a trailer.
A system unavailable message may
display if:
.The front of the vehicle or
windshield is not clean.
.Heavy rain or snow is interfering
with object detection.
.There is a problem with the
StabiliTrak/Electronic Stability
Control (ESC) system.
The AEB system does not need
service.
Front Pedestrian Braking
(FPB) System
If equipped, the FPB system may help
avoid or reduce the harm caused by
front-end crashes with nearby
pedestrians when driving in a forward
gear. FPB displays an amber indicator,
~, when a nearby pedestrian is
detected ahead. When approaching a
detected pedestrian too quickly, FPB
provides a red flashing alert on the
windshield and rapidly beeps or pulses
the driver seat. FPB can provide a
boost to braking or automatically
brake the vehicle. This system
includes Intelligent Brake Assist (IBA),
and the Automatic Emergency Braking
(AEB) System may also respond to
pedestrians. See Automatic Emergency
Braking (AEB) 0285.
The FPB system can detect and alert
to pedestrians in a forward gear at
speeds between 8 km/h (5 mph) and
80 km/h (50 mph). During daytime
driving, the system detects
pedestrians up to a distance of
approximately 40 m (131 ft). During
nighttime driving, system performance
is very limited. If the vehicle is equipped with the Night Vision
system, during nighttime driving, the
vehicle can detect and alert to
pedestrians whenever in a
forward gear.
{Warning
FPB does not provide an alert or
automatically brake the vehicle,
unless it detects a pedestrian. FPB
may not detect pedestrians,
including children:
.When the pedestrian is not
directly ahead, fully visible,
or standing upright, or when part
of a group.
.Due to poor visibility, including
nighttime conditions, fog, rain,
or snow.
.If the FPB sensor is blocked by
dirt, snow, or ice.
.If the headlamps or windshield
are not cleaned or in proper
condition.
(Continued)