2020 CADILLAC CT6 ignition

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 211
The speedometer reading can be
displayed in either English or
metric units. SeeInstrument Cluster
(Base Level) 0110 or
Instrument Cluster (Uplevel) 0113. 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 four ways to end cruise
control:
.
Step lightly on the brake pedal.
. Press
*.
. Shift the transmission to
N (Neutral).
. Press
J.
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
If equipped with Adaptive Cruise
Control (ACC), it allows for selecting
the cruise control set speed and
following gap. Read this entire section
before using this system. ACC uses a
camera and radar sensors to detect other vehicles. See
Radio Frequency
Statement 0386. The following gap is
the following time (or distance)
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.
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 0203. 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 is disabled.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 217
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.
Notification to Resume ACC
ACC will maintain a follow gap behind
a detected vehicle and slow your
vehicle to a stop behind that vehicle.
If the stopped vehicle ahead has
driven away and ACC has not
resumed, the vehicle ahead indicator
will flash as a reminder to check
traffic ahead before proceeding. In
addition, the left and right sides of the
Safety Alert Seat will pulse three
times, or three beeps will sound. See
“Alert Type ”and “Adaptive Cruise Go
Notifier” in“Collision/Detection
Systems” underVehicle Personalization
0 140. When the vehicle ahead drives away,
ACC resumes automatically if the stop
was brief. 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 0200.
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 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 219
vehicles 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 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.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. For
towing capability, see
Trailer Towing
0 266. ACC will not detect a vehicle in
the lane while driving on steep hills.
The driver will often need to take over
acceleration and braking on steep
hills, especially when towing a trailer.
If the brakes are applied, the ACC
disengages.
Disengaging ACC
There are three ways to
disengage ACC:
. Step lightly on the brake pedal.
. Press
*. .
Press
J.
Erasing Speed Memory
The ACC set speed is erased from
memory if
Jis pressed or if the
ignition is turned off.
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,
ice, dirt, or mud. These areas need to
be cleaned for ACC to operate
properly.
If ACC will not operate, regular cruise
control may be available. See
“Switching Between ACC and Regular
Cruise Control ”previously in this
section. Always consider driving
conditions before using either cruise
control system.
For cleaning instructions, see
“Washing the Vehicle ”under Exterior
Care 0349.
System operation may also be limited
under snow, heavy rain, or road spray
conditions.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
226 DRIVING AND OPERATING
Pay close attention to the road ahead to avoid these three increasing alerts: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. See “Collision/Detection Systems”underVehicle
Personalization 0140.
. 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 CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
232 DRIVING AND OPERATING
Super Cruise Message Summary (cont'd)
Unavailable Driving Too FastThe vehicle is traveling faster than 137 km/h (85 mph).
The maximum Super Cruise speed in curves will vary based
on how sharp the curve is. The vehicle will automatically
decrease speed if needed.
Unavailable Driving in Exit Lane The Super Cruise system has detected that the vehicle is in
an exit lane.
Unavailable GPS Signal Lost .
There is poor reception in isolated areas.
. Reception is being blocked by buildings or other large
structures.
Unavailable You Have Taken Vehicle Control .
The brake pedal is being pressed.
. The Adaptive Cruise Control has been canceled or
turned off.
Unavailable Sensor Blocked Clear snow, ice, dirt, or other contaminants from the front
and rear areas of the vehicle.
Unavailable Sharp Curve Some curves are too sharp to be navigated by the Super
Cruise system. Super Cruise will be available after the curve
is traveled.
Super Cruise Unavailable Super Cruise is unavailable for reasons not described in
other messages.
Super Cruise Locked Out See Owner’s Manual The driver did not take control of the vehicle when
prompted by the Super Cruise system. The Super Cruise
system will be disabled until the ignition is turned off and
back on.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
250 DRIVING AND OPERATING
Cleaning the System
If FPB does not seem to operate
properly, cleaning the outside of the
windshield in front of the rearview
mirror may correct the issue.
Night Vision System
If equipped, this system can help the
driver see and alert the driver to
pedestrians or large animals ahead of
the vehicle beyond the area lit by the
headlamps. A thermal heat image of
the view ahead is displayed when it is
dark enough outside. If a pedestrian
or large animal is detected more than
25 m (82 ft) away, an amber
pedestrian or animal icon displays and
a box appears around the pedestrian
or animal. When the system detects
that the vehicle is approaching a
pedestrian ahead much too quickly,
the box changes to red.
With the Front Pedestrian Braking
system turned on, Night Vision
provides a red Head-Up Display (HUD)
alert when the system detects that the
vehicle is approaching a pedestrian
ahead much too quickly. In addition,
an alert beeps or the Safety Alert Seat
pulses, if equipped. SeeFront
Pedestrian Braking (FPB) System 0247.
{Warning
The system does not detect all
objects or the vehicle distance from
objects. The system may not
provide a warning with enough time
to help avoid a crash.
1. Low-Beam Headlamps
2. High-Beam Headlamps
3. Night Vision System
By selecting a view on the instrument
cluster, the Night Vision image
can be displayed. See Instrument
Cluster (Base Level) 0110 or
Instrument Cluster (Uplevel) 0113. The
Night Vision system can operate
only if:
. The ignition is on.
. The vehicle is in P (Park) or a
forward gear.
. It is dark enough outside.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
VEHICLE CARE 291
Antilock Brake System (ABS) and the
Brake Assist system to aid the driver
during various braking situations. See
Antilock Brake System (ABS)0199.
Brake Pad Life System
When to Change Brake Pads
If equipped, this system estimates the
remaining life of the front and rear
brake pads. Brake pad life is displayed
in the Driver Information Center
(DIC), along with a percentage for
each axle. The system must be reset
every time the brake pads are
changed.
When the system has determined that
the brake pads need to be replaced, a
message will display, which may
include mileage remaining.
Brake pads should always be replaced
as complete axle sets.
How to Reset the Brake Pad Life
System
The system will automatically detect
when significantly worn brake pads
are replaced. When the ignition is
turned on after new pads and wear sensors are installed, a message will
display. Follow the prompts to reset
the system.
The brake pad life system can also be
manually reset:
1. Display Brake Pad Life on the DIC. See Driver Information Center
(DIC) 0132.
2. Press and hold SEL. Select front or rear pads as appropriate.
3. Select YES on the confirmation message. Repeat for pads on the
other axle if they were also
replaced.
How to Disable the Brake Pad
Life System
The brake pad life system can be
turned off. This may be necessary if
aftermarket brake pads without wear
sensors are installed. When the
system is turned off, the front and
rear brake pad life percentages will
not display. However, the built-in wear
indicators that make a high-pitched
warning sound when the brake pads are worn can still determine when the
pads should be replaced. See
Brakes
0 290.
To turn off the brake pad life system: 1. Display Brake Pad Life on the DIC. See Driver Information Center
(DIC) 0132.
2. Select DISABLE.
To turn the brake pad life system back
on, follow the above steps but select
ENABLE in Step 2.
Brake Fluid
The brake master cylinder reservoir is
filled with GM approved DOT 3 brake
fluid as indicated on the reservoir cap.
See Engine Compartment Overview
0 274 for the location of the reservoir.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
300 VEHICLE CARE
FusesUsage
1 –
2 – Fuses
Usage
3 –
4 – Fuses
Usage
5 Transfer case control/Transmission
control module
ignition
6 –
7 Starter motor
8 Starter pinion
9 Horn
10 –
11 –
12 –
13 High-beam headlamps left/right
18 Right cornering LED
21 Air conditioning clutch
22 Transmission auxiliary oil pump
cooling
23 –
24 Cabin heater pump