brake light CADILLAC CT4 2023 Owner's Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
300 Driving and Operating
SPORT
.For use by drivers who are
familiar with the track.
.Dry conditions only.
.Requires more driving skill
than DRY.
.StabiliTrak/ESC is on and
more engine power is
available than in DRY.
RACE 1
.For use by drivers who are
familiar with the track.
.Dry conditions only.
.Requires more driving skill
than modes DRY or SPORT.
.StabiliTrak/ESC is off and
available engine power is the
same as SPORT.
RACE 2
.For use by experienced
drivers who are familiar with
the track.
.Dry conditions only.
.Requires more driving skill
than in other modes.
.StabiliTrak/ESC is off and
engine power is available for
maximum cornering speed.
In any PTM Mode, Launch
Control is available. Use PTM
Race 2 for the most
consistent performance
during drag strip use. See
“Custom Launch Control” in
Track Events and Competitive
Driving (V-Series and V-Series
Blackwing) 0238.
Launch Control
If equipped, Launch Control is
available within Competitive
Driving Mode and PTM to
allow high levels of vehicle
acceleration in a straight line.
Launch Control is a form of
traction control that manages
tire spin while 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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
304 Driving and Operating
The speedometer reading can
be displayed in either English
or metric units. See
Instrument Cluster (Base
Level)0106 or
Instrument Cluster (Uplevel)
0 108. 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 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 0494.
If a vehicle is detected in your
path, ACC can speed up the
vehicle or apply limited,
moderate braking to maintain

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 313
attention is on the road ahead,
ACC resumes automatically.
See“Attention to the Road”
under Super Cruise 0316.
If necessary, press RES+ or
the accelerator pedal to
resume ACC. If stopped for
more than two minutes or if
the driver door is opened and
the driver seat belt is
unbuckled, the ACC
automatically applies the
Electric Parking Brake (EPB)
to hold the vehicle. The EPB
status light will turn on. See
Electric Parking Brake 0287.
To release the EPB, press the
accelerator pedal.
A DIC warning message may
display indicating to shift to
P (Park) before exiting the
vehicle.
{Warning
If ACC has stopped the
vehicle, and if ACC is
disengaged, turned off,
or canceled, the vehicle will
(Continued)
Warning (Continued)
no longer be held at a stop.
The vehicle can move. When
ACC is holding the vehicle at
a stop, always be prepared
to manually apply the
brakes.
{Warning
Leaving the vehicle without
placing it in P (Park) can be
dangerous. Do not leave the
vehicle while it is being held
at a stop by ACC. Always
place the vehicle in P (Park)
and turn off the ignition
before leaving the vehicle.
ACC Override
If using the accelerator pedal
while ACC is active, the ACC
indicator turns blue on the
instrument cluster and in the
HUD (if equipped) to indicate
that automatic braking will not
occur. ACC will resume operation when the
accelerator pedal is not being
pressed.
{Warning
The ACC will not
automatically apply the
brakes if your foot is resting
on the accelerator pedal.
You could crash into a
vehicle ahead of you.
Curves in the Road
{Warning
On curves, ACC may not
detect a vehicle ahead in
your lane. You could be
startled if the vehicle
accelerates up to the set
speed, especially when
following a vehicle exiting or
entering exit ramps. You
could lose control of the
vehicle or crash. Do not use
ACC while driving on an (Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 315
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
320 Driving and Operating
To engage:
.PressJto turn on ACC.
Make sure the white
\
indicator displays in the
instrument cluster. See
Adaptive Cruise Control
(Advanced) 0304. When
Super Cruise is available, the
white
^will display in the
instrument cluster.
.Press].
ACC will set the speed to
the current vehicle speed or
resume to the higher
previously stored ACC set
speed. When engaged and not
steering the vehicle, the
steering wheel light bar
flashes blue, and
^will be
blue. The driver is in control of
steering and Super Cruise is
not steering the vehicle.
When the vehicle is positioned
in the center of the lane, the
steering wheel light bar and
^
display will turn green,
indicating Super Cruise is
steering the vehicle.
When Super Cruise controls
the steering, traffic and other
conditions and laws permit,
and it is safe to do so, your
hands can be taken off the
steering wheel.
Always pay attention to the
road and the operation of the
vehicle. Always monitor and be
attentive of surrounding
traffic, including vehicles that
may cross the road in front of
your vehicle. Super Cruise steering can be
overridden with manual
steering at any time. When
Super Cruise is engaged,
always be prepared to take
immediate action
—including
steering, accelerating, and
braking quickly, if necessary.
When Super Cruise is
engaged, the Forward
Collision System will alert and
brake.
Steering Manually and
Changing Lanes
The vehicle can always be
manually steered, even with
Super Cruise engaged; for
example, when manually
changing lanes.
When the steering wheel is
moved manually, the steering
wheel light bar flashes blue
and
^on the instrument
cluster turns blue to indicate
Super Cruise is not steering
the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 325
First Alert
.If the steering wheel light bar flashes green, the system has detected that your head and
eyes may not be directed toward the road.
.The flashing will stop when the system detects that your head and eyes appear to be
directed toward the road.
Second Alert
.If the steering wheel light bar flashes green for too long, Super Cruise will alert the driver to
take control of steering immediately by flashing the light bar red. Also, either beeps will
sound or the Safety Alert Seat will vibrate. Touch the Settings icon on the infotainment
home page. Select “Vehicle”to display the list of available options and select ”Alert Type”
and “Adaptive Cruise Go Notifier” in“Collision/Detection Systems”.
.Take over steering, then Super Cruise will disengage.
.To re-engage Super Cruise, press].See “Using Super Cruise” previously in this section.
Third Alert
.If the steering wheel light bar flashes red for too long, a voice command will tell you to take
control of the vehicle.
.Take control of the steering immediately; ACC and Super Cruise will disengage.
.A DIC message will indicate that Super Cruise is locked out. Super Cruise cannot be
re-engaged until the next ignition cycle.
.Continued failure to take over steering will cause the vehicle to brake to a stop and OnStar
will be called. The brake lamps and hazard warning flashers will come on.
.Take control of the vehicle and continue driving.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 327
Super Cruise may occasionally
provide an alert and/or
steering that is considered
unnecessary. It could respond
to lane markings in different
lanes, signs, guardrails, and
other stationary objects when
entering or 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 General Towing
Information
0358.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 329
Steering WheelLight Bar Instrument Cluster
Light Super Cruise Description
Off
OffSuper Cruise is off. There is no automatic steering. Operate the
vehicle manually.
Off WhiteSuper Cruise is available and can be engaged.
Solid Green Solid GreenSuper Cruise is steering. Pay attention to the road and vehicle
operation.
Flashing Blue Solid BlueSuper Cruise is not steering. Operate the vehicle manually. See
“Steering Manually and Changing Lanes”
previously in this
section.
Flashing Green Solid GreenSuper Cruise has detected you are not paying sufficiently close
attention to the road. Pay attention to the road. See
“Attention
to the Road” previously in this section.
Flashing Red Solid RedTake over steering immediately. Super Cruise will disengage.
See
“Take Over Alert” previously in this section.
Disengaging Super Cruise
There are two ways to
disengage Super Cruise:
.Press]while your hands
are on the steering wheel.
The Super Cruise steering
will disengage.
.Press the brake pedal while
your hands are on the
steering wheel. Both Super
Cruise steering and Adaptive
Cruise Control will
disengage. Super Cruise Messages
If
^does not appear,]can
be pressed to display a DIC
message as to why the system
is unavailable.
Immediately after a
disengagement, pressing the
]within 10 seconds will
display a DIC message with
the reason for Super Cruise
disengagement.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
Driving and Operating 339
How the System Works
The instrument cluster may
have a Park Assist display with
bars that show“distance to
object,” driving direction, and
object location information for
the Park Assist system. As the
object gets closer, more bars
light up and the bars change
color from yellow to amber
to red.
Beeps sound to warn the
driver of certain objects that
are detected around the
vehicle. The frequency of
beeps increases as the vehicle
gets closer to the object.
When the object is very close
to the vehicle, the beeps are
continuous. Beeps for the
front are higher pitched than
beeps for the rear. If equipped
with Safety Alert seat, both
sides of the seat will pulse
alongside the beeps. When the System Does Not
Seem to Work Properly
The following messages may
be displayed on the DIC:
SERVICE PARKING ASSIST :
If this message occurs, check
the following conditions:
.The sensors are not clean.
Keep the vehicle's rear
bumper free of mud, dirt,
snow, ice, and slush. For
cleaning instructions, see
Exterior Care
0455.
.The Park Assist sensors are
covered by frost or ice.
Frost or ice can form around
and behind the sensors and
may not always be seen; this
can occur after washing the
vehicle in cold weather. The
message may not clear until
the frost or ice has melted.
If the above conditions do not
exist, take the vehicle to your
dealer to repair the system. PARK ASSIST OFF :
If the PA
system does not activate due
to a temporary condition, the
appropriate message displays
on the DIC. PA OFF message
is displayed when disabled by
the driver. Front/Rear PA OFF
message is displayed when an
attached object is detected in
the front or rear respectively.
PA Temporarily Unavailable
message is displayed for
system failures. This can occur
under the following conditions:.The driver has disabled the
system.
.An object was hanging out
of the trunk during the last
drive cycle. Once the object
is removed, RPA will return
to normal operation.
.The bumper is damaged.
Take the vehicle to your
dealer to repair the system.
.Other conditions, such as
vibrations from a
jackhammer or the
compression of air brakes on

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
340 Driving and Operating
a very large truck, are
affecting system
performance.
Turning the Feature 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 when
towing a trailer.
To view available settings for
this feature, touch the
Settings icon on the
infotainment home page.
Select “Vehicle” to display the
list of available options and
select “Collision/Detection
Systems”.
Reverse Automatic
Braking (RAB)
Backing Warning and
Reverse Automatic
Braking (RAB)
If equipped, vehicles with
Adaptive Cruise Control (ACC)
have the Backing Warning
System and Reverse
Automatic Braking (RAB)
system. When in R (Reverse),
Backing Warning alerts of rear
objects at vehicle speeds
greater than 8 km/h (5 mph),
and RAB may automatically
brake hard at speeds between
1–32 km/h (0.5–20 mph).
The Backing Warning System
will beep once from the rear
when an object is first
detected, or pulse twice on
both sides of the Safety Alert
Seat. When the system
detects a potential crash,
beeps will be heard from the
rear, or five pulses will be felt
on both sides of the Safety Alert Seat. There may also be
a brief, sharp application of
the brakes.
{Warning
The Backing Warning
System only operates at
speeds greater than 8 km/h
(5 mph). It does not detect
children, pedestrians,
bicyclists, animals, or objects
below the bumper or that
are too close or too far from
the vehicle. In some
situations, such as at higher
backing speeds, there may
not be enough time for the
short, sharp application of
the vehicle brake system to
occur. To prevent injury,
death, or vehicle damage,
even with the Backing
Warning System, always
check the area around the
vehicle and check all mirrors
before backing.