cruise control CADILLAC CT4 2022 User Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
208 DRIVING AND OPERATING
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . . . . . 209
Distracted Driving . . . . . . . . . . . . . . . . 210
Defensive Driving . . . . . . . . . . . . . . . . 210
Impaired Driving . . . . . . . . . . . . . . . . . 210
Control of a Vehicle . . . . . . . . . . . . . . 211
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Off-Road Recovery . . . . . . . . . . . . . . . . 212
Loss of Control . . . . . . . . . . . . . . . . . . . 212
Track Events and Competitive Driving (V-Series and V-Series
Blackwing) . . . . . . . . . . . . . . . . . . . . . . 213
Driving on Wet Roads . . . . . . . . . . . 224
Hill and Mountain Roads . . . . . . . . 225
Winter Driving . . . . . . . . . . . . . . . . . . . . 226
If the Vehicle Is Stuck . . . . . . . . . . . 227
Vehicle Load Limits . . . . . . . . . . . . . . 228
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 231
Composite Materials . . . . . . . . . . . . . 232
Ignition Positions . . . . . . . . . . . . . . . . 232
Starting the Engine . . . . . . . . . . . . . . 234
Stop/Start System . . . . . . . . . . . . . . . . 235 Engine Heater . . . . . . . . . . . . . . . . . . . . 236
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . . . 237
Shifting Into Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Shifting Into Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Shifting out of Park (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Shifting out of Park (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Parking (Manual Transmission) . . . . . . . . . . . . . . . . . . . 240
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . 240
Extended Parking . . . . . . . . . . . . . . . . . 240
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 241
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Automatic Transmission
Automatic Transmission(Mechanical Shifter) . . . . . . . . . . . . 242
Automatic Transmission (Electronic Shifter) . . . . . . . . . . . . . 244
Manual Mode (Mechanical Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Manual Mode (Electronic Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Manual Transmission
Manual Transmission . . . . . . . . . . . . 250
Active Rev Match . . . . . . . . . . . . . . . . 252
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 253
Brakes
Electric Brake Boost . . . . . . . . . . . . . . 253
Antilock Brake System (ABS) . . . . 253
Electric Parking Brake . . . . . . . . . . . . 254
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 255
Hill Start Assist (HSA) . . . . . . . . . . . 256
Automatic VehicleHold (AVH) . . . . . . . . . . . . . . . . . . . . . 256
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 257
Driver Mode Control . . . . . . . . . . . . . 258
Competitive Driving Mode . . . . . . . 264
Limited-Slip Differential . . . . . . . . . 266
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 266
Adaptive Cruise Control (Advanced) . . . . . . . . . . . . . . . . . . . . . . 269
Super Cruise . . . . . . . . . . . . . . . . . . . . . . 278

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
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DRIVING AND OPERATING 209
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 293
Assistance Systems for Parkingor Backing . . . . . . . . . . . . . . . . . . . . . . . 295
Rear Vision Camera (RVC) . . . . . . . 295
Surround Vision System . . . . . . . . . 296
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . 297
Reverse Automatic Braking (RAB) . . . . . . . . . . . . . . . . . . . 299
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . . . . . 303
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Side Blind Zone Alert (SBZA) . . . . 307
Lane Change Alert (LCA) . . . . . . . . 307
Lane Keep Assist (LKA) . . . . . . . . . . 309
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 311
Recommended Fuel (LSY 2.0L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 311
Recommended Fuel (L3B 2.7L L4 Turbo and LF4 3.6L V6 Twin
Turbo Engines) . . . . . . . . . . . . . . . . . 311 Prohibited Fuels . . . . . . . . . . . . . . . . . . 312
Fuels in Foreign Countries . . . . . . . 312
Fuel Additives . . . . . . . . . . . . . . . . . . . . 312
Filling the Tank . . . . . . . . . . . . . . . . . . 312
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 314
Trailer Towing
General Towing Information . . . . 314
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 315
Trailer Towing (LSY 2.0L L4 Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Towing Equipment . . . . . . . . . . . . . . . 320
Conversions and Add-Ons
Add-On Electrical Equipment . . . 321
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.

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DRIVING AND OPERATING 213
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 and V-Series
Blackwing)
Before any track event, there are three
features that should be turned off:
.Automatic Emergency Braking
(AEB). See Automatic Emergency
Braking (AEB) 0303.
.Lane Keep Assist. See Lane Keep
Assist (LKA) 0309.
.Adaptive Cruise Control. See
Adaptive Cruise Control (Advanced)
0269.
{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
(CONTINUED)
Danger (Continued)
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.
{Warning
Some of the adjustments and
procedures specified in this section
may require specialized skill,
training, and equipment. Failure to
perform these procedures properly
could cause malfunction,
potentially resulting in death,
personal injury, or damage to the
vehicle or property. Do not attempt
to perform these adjustments or
procedures unless properly
qualified.

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DRIVING AND OPERATING 225
{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.
Caution
Driving through deep puddles or
standing water can cause water to
come in through the engine air
intake and damage the engine.(Continued)
Caution (Continued)
If deep puddles or standing water
cannot be avoided, proceed with
caution and do not exceed 8 km/h
(5 mph). Do not drive through
water that may come close to or
cover the vehicle’s underbody.
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 enough
and 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. SeeTires0363.
.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, and cooling system.
.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.

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226 DRIVING AND OPERATING
{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.
.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 IceCaution
To avoid damage to the wheels and
brake components, always clear
snow and ice from inside the
wheels and underneath the vehicle
before driving.
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
Control 0257.
.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) 0253.
See Driver Mode Control 0258.
.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 0432. To get help and keep
everyone in the vehicle safe:
.Turn on the hazard warning
flashers.
.Tie a red cloth to an outside mirror.

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DRIVING AND OPERATING 257
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 0227 and “Turning
the Systems Off and On ”later in this
section.
The indicator light for both systems is
in the instrument cluster. This
light will:
.Flash when TCS is limiting
wheel spin.
.Flash when StabiliTrak/ESC is
activated.
.Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message may display in the
Driver Information Center (DIC), and
dcomes on and stays on to indicate
that the system is inactive and is not
assisting the driver in maintaining
control. The vehicle is safe to drive,
but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
Drive the vehicle. if
dcomes on and
stays on, the vehicle may need more
time to diagnose the problem. If the
condition persists, see your dealer.

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266 DRIVING AND OPERATING
launching the vehicle. This feature is
intended for use during closed course
race events where consistent zero to
60 and quarter mile times are
desirable.
Launch Control is only available when
the following criteria are met:
.Competitive Driving Mode is
selected or any of the PTM modes
are selected. The traction off light
comes on in the instrument cluster
and the appropriate DIC message
displays.
.The vehicle is not moving.
.The steering wheel is pointing
straight.
Automatic Transmissions
.The brake pedal is firmly pressed to
the floor, equivalent to a panic
brake event.
.The accelerator pedal is rapidly
applied to wide open throttle. If the
vehicle rolls due to wide open
throttle, release the throttle, press
the brake pedal more firmly, and
reapply the accelerator to wide open
throttle.Launch Control will initially limit
engine speed as you rapidly apply the
accelerator pedal to wide open
throttle. Allow the engine rpm to
stabilize. A smooth, quick release of
the brake pedal, while maintaining the
fully pressed accelerator pedal, will
manage wheel slip.
After the vehicle is launched, the
system continues in Competitive
Driving Mode or PTM.
Competitive Driving Mode, PTM, and
Launch Control are systems designed
for a closed course race track and not
intended for public roads. The systems
are not intended to compensate for
lack of driver experience or familiarity
with the race track.
Limited-Slip Differential
If equipped, the Electronic
Limited-Slip Differential (eLSD) is
automatically activated. eLSD actively
monitors vehicle sensors and driver
inputs to determine the amount of
change for the conditions. With eLSD,
the vehicle has:
.Enhanced high-speed control.
.Improved traction through corners,
allowing more acceleration.
.More precise steering.
.Increased vehicle agility.
.Integration with StabiliTrak/
Electronic Stability Control (ESC).
For vehicles with eLSD, driven under
severe conditions, the rear axle fluid
should be changed. See Competitive
Driving Mode 0264 and
Maintenance Schedule 0408.
Cruise Control
{
Warning
Cruise control can be dangerous
where you cannot drive safely at a
steady speed. Do not use cruise
control on winding roads or in
heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes in tire traction can cause
excessive wheel slip, and you could
lose control. Do not use cruise
control on slippery roads.

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DRIVING AND OPERATING 267
With cruise control, a speed of about
40 km/h (25 mph) or more can be
maintained without keeping your foot
on the accelerator. Cruise control does
not work at speeds below about
40 km/h (25 mph).
If equipped with a manual
transmission, the cruise control will
remain active when the gears are
shifted. The cruise is disengaged if the
clutch is pressed for several seconds.
If the Traction Control/StabiliTrak/
Electronic Stability Control (ESC)
system begins to limit wheel spin
while using cruise control, the cruise
control automatically disengages. See
Traction Control/Electronic Stability
Control0257. If a collision alert
occurs when cruise control is
activated, cruise control is disengaged.
See Forward Collision Alert (FCA)
System 0301. When road conditions
allow cruise control to be safely used,
it can be turned back on.
Cruise control will disengage if either
TCS or StabiliTrak/ESC is turned off.
If the brakes are applied, cruise
control disengages.
J: Press to turn the system on and
off. A white indicator appears in the
instrument cluster when cruise is
turned on.
RES+ : If there is a set speed in
memory, press briefly to resume to
that speed or press and hold to
accelerate. If the cruise control is
already active, use to increase vehicle
speed. To increase speed by 1 km/h
(1 mph), press RES+ to the first detent.
To increase speed to the next 5 km/h
(5 mph) mark on the speedometer,
press RES+ to the second detent.
SET− :Press briefly to set the speed
and activate cruise control. If the
cruise control is already active, use to decrease vehicle speed. To decrease
speed by 1 km/h (1 mph), press SET−
to the first detent. To decrease speed
to the next 5 km/h (5 mph) mark on
the speedometer, press SET−
to the
second detent.
*: Press to disengage cruise control
without erasing the set speed from
memory.
Setting Cruise Control
If
Jis on when not in use, SET− or
RES+ could get pressed and go into
cruise when not desired. Keep
Joff
when cruise is not being used.
1. Press
J.
2. Get up to the desired speed.
3. Press and release SET−. The desired set speed briefly appears in the
instrument cluster.
4. Remove your foot from the accelerator.
When the cruise control has been set
to the desired speed, a green cruise
control indicator appears on the
instrument cluster and a cruise set
speed message appears on the
Head-Up Display (HUD), if equipped.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
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268 DRIVING AND OPERATING
Resuming a Set Speed
If the cruise control is set at a desired
speed and then the brakes are applied
or
*is pressed, the cruise control is
disengaged without erasing the set
speed from memory.
Once the vehicle speed reaches about
40 km/h (25 mph) or more, press RES+
briefly. The vehicle returns to the
previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is already
activated:
.Press and hold RES+ until the
desired speed is reached, then
release it.
.To increase vehicle speed in small
increments, briefly press RES+ to
the first detent. For each press, the
vehicle goes about 1 km/h (1 mph)
faster.
.To increase vehicle speed in larger
increments, briefly press RES+ to
the second detent. For each press,
the vehicle speed increases to the
next 5 km/h (5 mph) mark on the
speedometer. The speedometer reading can be
displayed in either English or metric
units. See
Instrument Cluster (Base
Level) 089 or
Instrument Cluster (Uplevel) 091. The
increment value used depends on the
units displayed.
Reducing Speed While Using Cruise
Control
If the cruise control system is already
activated:
.Press and hold SET− until the
desired lower speed is reached, then
release it.
.To decrease the vehicle speed in
small increments, briefly press SET−
to the first detent. For each press,
the vehicle goes about 1 km/h
(1 mph) slower.
.To decrease the vehicle speed in
larger increments, briefly press
SET− to the second detent. For each
press, the vehicle speed decreases to
the next 5 km/h (5 mph) mark on
the speedometer. The cruise control system may
automatically brake to slow the
vehicle down.
The speedometer reading can be
displayed in either English or metric
units. See
Instrument Cluster (Base
Level) 089 or
Instrument Cluster (Uplevel) 091. The
increment value used depends on the
units displayed.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to increase
the vehicle speed. When you take your
foot off the pedal, the vehicle will slow
down to the previous set cruise speed.
While pressing the accelerator pedal
or shortly following the release to
override cruise, briefly applying SET−
will result in cruise set to the current
vehicle speed.
Using Cruise Control on Hills
How well the cruise control will work
on hills depends upon the vehicle
speed, load, and the steepness of the
hills. When going up steep hills, you
might have to step on the accelerator
pedal to maintain your speed. When

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
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DRIVING AND OPERATING 269
going downhill, the cruise control
system may automatically brake to
slow the vehicle down. Also, you may
have to brake or shift to a lower gear
to keep your speed down. If the brake
pedal is applied, cruise control
disengages.
Ending Cruise Control
There are five ways to end cruise
control:
.Step lightly on the brake pedal.
.Press*.
.Shift the transmission to
N (Neutral).
.Press the clutch pedal for several
seconds or shift to Neutral (manual
transmissions).
.PressJ.
Erasing Speed Memory
The cruise control set speed is erased
from memory if
Jis pressed or if the
ignition is turned off.
Adaptive Cruise Control
(Advanced)
If equipped, Adaptive Cruise Control
(ACC) allows the cruise control set
speed and following gap to be
selected. Read this entire section
before using this system. The
following gap is the following time
between your vehicle and a vehicle
detected directly ahead in your path,
moving in the same direction. If no
vehicle is detected in your path, ACC
works like regular cruise control. ACC
uses camera and radar sensors. See
Radio Frequency Statement 0438.
If a vehicle is detected in your path,
ACC can speed up the vehicle or apply
limited, moderate braking to maintain
the selected following gap. To
disengage ACC, apply the brake. If the
Traction Control System (TCS) or
StabiliTrak/Electronic Stability Control
(ESC) system activates while ACC is
engaged, ACC may automatically
disengage. See Traction Control/
Electronic Stability Control 0257. When
road conditions allow ACC to be safely
used, ACC can be turned back on. ACC will not engage if the TCS or
StabiliTrak/ESC electronic stability
control system is disabled.
ACC can reduce the need for you to
frequently brake and accelerate,
especially when used on expressways,
freeways, and interstate highways.
When used on other roads, you may
need to take over the control of
braking or acceleration more often.
{Warning
ACC has limited braking ability and
may not have time to slow the
vehicle down enough to avoid a
collision with another vehicle you
are following. This can occur when
vehicles suddenly slow or stop
ahead, or enter your lane. Also see
“Alerting the Driver”
in this section.
Complete attention is always
required while driving and you
should be ready to take action and
apply the brakes. See Defensive
Driving 0210.