2019 CADILLAC CT6 engine

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INSTRUMENTS AND CONTROLS 143
Electric Parking Brake
Light
MetricEnglish
This light comes on when the parking
brake is applied. If the light continues
flashing after the parking brake is
released, or while driving, there is a
problem with the Electric Parking
Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light
On some vehicles the service electric
parking brake light should come on
briefly when the vehicle is started.
If it does not come on, have it fixed so
it will be ready to warn if there is a
problem. For vehicles with the
reconfigurable cluster, this light may
not come on when the vehicle is
started.
If this light stays on, the vehicle
should be taken to a dealer as soon as
possible. See Electric Parking Brake
0 218. A message may also display in
the Driver Information Center (DIC).
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the system.
If the ABS light stays on, or comes on
again while driving, the vehicle needs
service. A chime may also sound when
the light comes on steady.
If the ABS light is the only light on,
the vehicle has regular brakes, but the
antilock brakes are not functioning.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
144 INSTRUMENTS AND CONTROLS
If both the ABS and the brake system
warning light are on, the vehicle's
antilock brakes are not functioning
and there is a problem with the
regular brakes. See your dealer for
service.
SeeBrake System Warning Light (3.0L
Twin Turbo and 3.6L V6 Engines) 0141
or
Brake System Warning Light (2.0L L4
Turbo and 4.2L Twin Turbo V8 Engines)
0 142.
Gear Shifting Light
If equipped, this light will display
when Performance Algorithm Liftfoot
(PAL) or Performance Algorithm Shift
(PAS) is activated. See Driver Mode
Control 0222.
Automatic Vehicle Hold
(AVH) Light
This light comes on when AVH is
turned on. See Automatic Vehicle Hold
(AVH) 0220.
Lane Keep Assist (LKA)
Light
For some vehicles, this light comes on
briefly while starting the vehicle. If it
does not come on, have the vehicle
serviced. For vehicles with the uplevel cluster,
this light may not come on when
starting the vehicle.
This light is green if LKA is available
to assist.
LKA may assist by gently turning the
steering wheel if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction. The LKA light will turn
amber.
This light is amber and flashes as a
Lane Departure Warning (LDW) alert,
to indicate that the lane marking has
been crossed.
See
Lane Keep Assist (LKA) 0273.
Vehicle Ahead Indicator

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INSTRUMENTS AND CONTROLS 145
If equipped, this indicator will display
green when a vehicle is detected
ahead and amber when you are
following a vehicle ahead much too
closely.
SeeForward Collision Alert (FCA)
System 0262.
Pedestrian Ahead Indicator
If equipped, this indicator will display
amber when a nearby pedestrian is
detected directly in front of the
vehicle.
See Front Pedestrian Braking (FPB)
System 0266.
Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light then
turns off. For vehicles with a
reconfigurable cluster, this light is in
the display area and it may not come
on when the ignition is turned on.
The traction off light comes on when
the Traction Control System (TCS) has
been turned off by pressing and
releasing the TCS/StabiliTrak/ESC
button.
This light and the StabiliTrak/ESC OFF
light come on when StabiliTrak/
Electronic Stability Control (ESC) is
turned off.
If the TCS is off, wheel spin is not
limited. Adjust driving accordingly. See
Traction Control/Electronic Stability
Control 0220.
StabiliTrak OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.
This light comes on when the
StabiliTrak/Electronic Stability Control
(ESC) system is turned off.
If StabiliTrak/ESC is off, the Traction
Control System (TCS) is also off.
If StabiliTrak/ESC and TCS are off, the
system does not assist in controlling
the vehicle. Turn on the TCS and the
StabiliTrak/ESC systems, and the
warning light turns off.
See Traction Control/Electronic Stability
Control 0220.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
146 INSTRUMENTS AND CONTROLS
Traction Control System
(TCS)/StabiliTrak Light
This light comes on briefly when the
engine is started.
If the light does not come on, have
the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light is on and not flashing, the
TCS and potentially the StabiliTrak/
ESC system have been disabled.
A Driver Information Center (DIC)
message may display. Check the DIC
messages to determine which
feature(s) is no longer functioning and
whether the vehicle requires service.
If the light is on and flashing, the TCS
and/or the StabiliTrak/ESC system is
actively working.See
Traction Control/Electronic Stability
Control 0220.
Engine Coolant
Temperature Warning Light
On some vehicles this light comes on
briefly while starting the vehicle. If it
does not, have the vehicle serviced by
the dealer. If the system is working
normally the indicator light goes off.
For vehicles with the reconfigurable
cluster, this light may not come on
when starting the vehicle.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving with
this light on can damage the engine
(Continued)
Caution (Continued)
and it may not be covered by the
vehicle warranty. SeeEngine
Overheating 0312.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens pull over and turn off
the engine as soon as possible. See
Engine Overheating 0312.
Driver Mode Control Light
This light comes on when Sport Mode
is selected.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INSTRUMENTS AND CONTROLS 147
This light comes on when Snow/Ice
Mode is selected.
This light comes on when Track Mode
is selected.
SeeDriver Mode Control 0222.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information about
tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of the
tires are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display.
Stop as soon as possible, and inflate
the tires to the pressure value shown
on the Tire and Loading Information
label. See Tire Pressure 0346.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light will
come on at every ignition cycle. See
Tire Pressure Monitor Operation 0349.Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check the
oil level as soon as possible. Add oil
if required, but if the oil level is
within the operating range and the
oil pressure is still low, have the
vehicle serviced. Always follow the
maintenance schedule for changing
engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced by
your dealer.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
148 INSTRUMENTS AND CONTROLS
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle could
be low on oil and might have some
other system problem. See your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working. For vehicles with a
reconfigurable cluster, this light is in
the display area and may not come on
when the ignition is turned on.
It also comes on when the fuel tank is
low on fuel. The light turns off when
fuel is added. If it does not, have the
vehicle serviced.
Security Light
On some vehicles the immobilizer
light should come on briefly as the
engine is started. If it does not come
on, have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light turns off.
For vehicles with the reconfigurable
cluster, this light may not come on
when the engine is started.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 51.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use. See
Headlamp High/Low-Beam Changer
0168.
IntelliBeam Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled. See Exterior Lamp Controls
0 166.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
152 INSTRUMENTS AND CONTROLS
Oil Life :Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message
will appear on the display. The oil
should be changed as soon as
possible. See Engine Oil0299. In
addition to the engine oil life system
monitoring the oil life, additional
maintenance is recommended. See
Maintenance Schedule 0383.
The Oil Life display must be reset
after each oil change. It will not reset
itself. Do not reset the Oil Life display
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until the
next oil change. To reset the engine
oil life system, press and hold SEL for
several seconds while the Oil Life
display is active. See Engine Oil Life
System 0302.
Engine Air Filter Life : Shows an
estimate of the engine air filter’s
remaining useful life and the state of
the system. Engine Air Filter Life 95% means 95% of the current air filter life
remains. Messages will display based
on the engine air filter life and the
state of the system. When the
REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the time of the
next oil change. When the REPLACE
ENGINE AIR FILTER NOW message
displays, the engine air filter should
be replaced as soon as possible.
The Engine Air Filter Life display
must be reset after the engine air
filter replacement. To reset, see
Engine
Air Filter Life System 0304.
Brake Pad Life : This displays an
estimate of the remaining life of the
front and rear brake pads. Messages
will display based on brake pad wear
and the state of the system. Reset the
Brake Pad Life display after replacing
the brake pads. See Brake Pad Life
System 0315.
Tire Pressure : Shows the
approximate pressures of all four tires.
Tire pressure is displayed in either
kilopascal (kPa) or in pounds per
square inch (psi). If the pressure is
low, the value for that tire is shown in amber. See
Tire Pressure Monitor
System 0348 and
Tire Pressure Monitor Operation 0349.
Vehicle Odometer (Base Cluster) :
Shows the odometer.
Blank Page : Allows for no
information to be displayed in the
cluster info display areas.
Head-Up Display (HUD)
{Warning
If the HUD image is too bright or
too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the operation
of the vehicle is projected onto the
windshield. The information is
projected through the HUD lens on
top of the instrument panel. The

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INSTRUMENTS AND CONTROLS 153
information appears as an image
focused out toward the front of the
vehicle.
Caution
If you try to use the HUD image as
a parking aid, you may misjudge
the distance and damage your
vehicle. Do not use the HUD image
as a parking aid.
The HUD information can be
displayed in various languages in
some vehicles. The speedometer
reading and other numerical values
can be displayed in either English or
metric units.
The language selection is changed
through the radio, and the units of
measurement is changed through the
instrument cluster. See “Settings”in
the infotainment manual and
"Options" under Instrument Cluster
(Uplevel) 0130 or
Instrument Cluster (Base Level) 0127.
HUD Display on the Windshield
The HUD may display some of the
following information:
. Speed
. Audio
. Phone
. Navigation
. Performance
. Safety Indicators
. Vehicle Messages
Some vehicle messages or alerts
displayed in the HUD may be cleared
by using the steering wheel controls.
See Vehicle Messages 0156.
The HUD control is to the left of the
steering wheel.
To adjust the HUD image:
1. Adjust the driver seat.
2. Start the engine.
3. Use the following settings to adjust the HUD.
$:Press or lift to center the HUD
image. The HUD image can only be
adjusted up and down, not side
to side.
!: Press to select the display view.
Each press will change the
display view.
D: Lift and hold to brighten the
display. Press and hold to dim the
display. Continue to hold to turn the
display off.