2020 CADILLAC CT4 brakes

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
188 DRIVING AND OPERATING
braking, and high acceleration to
select and hold lower gears when not
using paddles. The shifts are also
firmer to increase the quickness of
shifting.
Engine Sound
Adjusts the volume of engine noise.
Steering (Assist Effort)
Adjusts from a lighter steering feel in
Tour Mode to reduced assist in Sport
and Track Mode for more
steering feel.
Magnetic Ride Control (If Equipped)
Adjusts the shock dampening
firmness from a comfort tune in Tour
Mode to an optimized responsiveness
tune in Sport and Track.
Stability Control
.Competitive Mode allows less
computer control to permit some
slide and drift and is selected with
the button –only available in
Sport Mode. .
StabiliTrak/Electronic Stability
Control (ESC) can be turned off by
pressing and holding the button
for five seconds.
Brake Response
Adjusts brake pedal sensitivity by
selecting how quick or slow the brakes
reply to input.
Driver Mode Customization
The vehicle is equipped to modify
following vehicle settings based on
vehicle content. See Driving Mode
under Vehicle Personalization 0116 to
customize and personalize My Mode
and/or V–Mode..
Engine Sound
Engine sound adjusts the volume of
engine noise. Setting ranges from
quietest to loudest volume as you
move from Stealth through Track.
. Stealth, Tour, Sport, Track Steering
This setting adjusts the effort required
to turn the steering wheel. The
steering wheel offers better feedback
but requires more effort as you move
from Tour to Track.
.
Tour, Sport, Track
Suspension
This setting adjusts the firmness of
the suspension in the vehicle.
Suspension adjust stiffness of the
shocks and / or springs. The ride is
more comfortable at lower settings
and is stiffer at higher settings for
better control.
. Tour, Sport, Track
Powertrain
This setting adjusts the throttle
response, gear shifting and engine
performance. An increased throttle
response enhances the acceleration
feel as you move towards Track, but
with a comfort trade-off due to more
aggressive gear shifting.
. Tour, Sport, Track, Snow/Ice

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
192 DRIVING AND OPERATING
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.
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 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
Control
0182. If a collision alert
occurs when cruise control is
activated, cruise control is disengaged.
See Forward Collision Alert (FCA)
System 0211. 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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 193
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.
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 093. 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 093. The
increment value used depends on the
units displayed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 195
Warning (Continued)
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 0143.
{Warning
ACC will not detect or brake for
children, pedestrians, animals,
or other objects.
Do not use ACC when:
. On winding and hilly roads or
when the sensors are blocked
by snow, ice, or dirt. The
system may not detect a
vehicle ahead. Keep the entire
front of the vehicle clean.
(Continued)
Warning (Continued)
.Visibility is low, such as in
fog, rain, or snow conditions.
ACC performance is limited
under these conditions.
. On slippery roads where fast
changes in tire traction can
cause excessive wheel slip.
J:Press to turn the system on or
off. The indicator turns white on the
instrument cluster when ACC is
turned on. RES+ :
Press briefly to resume the
previous set speed or to increase
vehicle speed if ACC is already
activated. 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 ACC or to decrease
vehicle speed if ACC is already
activated. 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 ACC without
erasing the selected set speed from
memory.
[: Press to select a following gap
time (or distance) setting for ACC of
Far, Medium, or Near.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 093. The
increment value used depends on the
units displayed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
196 DRIVING AND OPERATING
Switching Between ACC and
Regular Cruise Control
To switch between ACC and regular
cruise control, press and hold
*.
A Driver Information Display (DIC)
message displays. See Vehicle Messages
0 115.
ACC IndicatorRegular Cruise
Control Indicator
When ACC is activated, a green
o
indicator will be lit on the instrument
cluster and the following gap will be
displayed. When the regular cruise
control is activated, a green
J
indicator will be lit on the instrument
cluster; the following gap will not
display.
When the vehicle is turned on, the
cruise control mode will be set to the
last mode used before the vehicle was
turned off.
{Warning
Always check the cruise control
indicator on the instrument cluster
to determine which mode cruise
control is in before using the
feature. If ACC is not active, the
vehicle will not automatically brake
for other vehicles, which could
cause a crash if the brakes are not
applied manually. You and others
could be seriously injured or killed.
Setting Adaptive Cruise Control
If
Jis on when not in use, SET-/RES
+ could be pressed by mistake and
activate ACC when not desired. Keep
Joff when cruise is not being used.
Select the set speed desired for ACC.
This is the vehicle speed when no
vehicle is detected in its path.
While the vehicle is moving, ACC will
not set at a speed less than 25 km/h
(15 mph), although it can be resumed
when driving at lower speeds. To set ACC while moving:
1. Press
J
2. Get up to the desired speed
3. Press and release SET−
4. Remove your foot from the accelerator pedal
After ACC is set, it may immediately
apply the brakes if a vehicle ahead is
detected closer than the selected
following gap.
ACC can also be set while the vehicle
is stopped if ACC is on and the brake
pedal is applied.
The ACC indicator displays on the
instrument cluster and Head-Up
Display (HUD), if equipped. When ACC
is turned on, the indicator will be lit
white. When ACC is engaged, the
indicator will turn green.
Be mindful of speed limits,
surrounding traffic speeds, and
weather conditions when selecting the
set speed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 197
Resuming a Set Speed
If ACC is set at a desired speed and
then the brakes are applied, ACC is
disengaged without erasing the set
speed from memory.
To begin using ACC again, press RES+
up briefly while moving more than
5 kph (5 mph). The vehicle returns to
the previous set speed.
If the vehicle is stopped with the
brake pedal applied, press RES+ and
release the brake pedal. ACC will hold
the vehicle until RES+ or the
accelerator pedal is pressed.
A green ACC indicator and the set
speed display on the instrument
cluster. The vehicle ahead indicator
may be flashing if a vehicle ahead was
present and moved. See“Approaching
and Following a Vehicle ”later in this
section.
Once ACC has resumed, if there is no
vehicle ahead, if the vehicle ahead is
beyond the selected following gap,
or if the vehicle has exited a sharp
curve, then the vehicle speed will
increase to the set speed. Increasing Speed While ACC is at a
Set Speed
If ACC is already activated, do one of
the following:
.
Use the accelerator to get to the
higher speed. Press SET– . Release
the control and the accelerator
pedal. The vehicle will now cruise
at the higher speed.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden. The ACC
indicator turns blue on the
instrument cluster and head-up
display, if equipped.
. Press and hold RES+ until the
desired set speed appears on the
display, then release it.
. To increase vehicle speed in small
increments, press RES+ to the first
detent. For each press, the vehicle
goes 1 km/h (1 mph).
. To increase vehicle speed in larger
increments, 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 set speed can also be increased
while the vehicle is stopped.
.
If stopped with the brake applied,
press RES+ until the desired set
speed is displayed.
. Pressing RES+ when there is no
longer a vehicle ahead or the
vehicle ahead is pulling away and
the brake is not applied will cause
the ACC to resume.
When it is determined there is no
vehicle ahead or the vehicle ahead is
beyond the selected following gap,
then the vehicle speed will increase to
the set speed.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 093. The
increment value used depends on the
units displayed.
Reducing Speed While ACC Is at a
Set Speed
If ACC is already activated, do one of
the following:

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - crc - 4/28/20
DRIVING AND OPERATING 199
Approaching and Following a
Vehicle
The vehicle ahead indicator is in the
instrument cluster and HUD display,
if equipped.
The vehicle ahead indicator only
displays when a vehicle is detected in
your vehicle’s path moving in the
same direction.
If this indicator is not displaying, ACC
will not respond to or brake for
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow a detected vehicle ahead at the
selected follow gap. The vehicle speed
increases or decreases to follow a
detected vehicle in front of your
vehicle when that vehicle is traveling
slower than your vehicle set speed.
It may apply limited braking,
if necessary. When braking is active,the brake lamps will come on. The
automatic braking may feel or sound
different than if the brakes were
applied manually. This is normal.
Stationary or Very Slow-Moving
Objects{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a vehicle
it has never detected moving. This
can occur in stop-and-go traffic or
when a vehicle suddenly appears
due to a vehicle ahead changing
lanes. Your vehicle may not stop
and could cause a crash. Use
caution when using ACC. Your
complete attention is always
required while driving and you
should be ready to take action and
apply the brakes.
ACC Automatically Disengages
ACC may automatically disengage and
the driver will need to manually apply
the brakes to slow the vehicle when:
.
The sensors are blocked.
. The Traction Control System (TCS)
or StabiliTrak/ESC has activated or
been disabled.
. There is a fault in the system.
. The radar falsely reports blockage
when driving in a desert or remote
area with no other vehicles or
roadside objects. A DIC message
may display to indicate that ACC
is temporarily unavailable.
The ACC indicator will turn white
when ACC is no longer active.
In some cases, when ACC will not
activate, regular cruise control may be
used. See “Switching Between ACC and
Regular Cruise Control ”previously in
this section. Always consider driving
conditions before using either cruise
control system.