engine CADILLAC CT6 2016 Owner's Guide

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
138 Instruments and Controls 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. See Tire Messages 0 156 .
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire
Pressure 0 306 .
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 0 309 . Engine Oil Pressure Light CautionLack 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. 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 139
Auto Stop Mode (Uplevel
Cluster)
This light comes on when the
engine is in an Auto Stop.
See Starting the Engine 0 204 .
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. See Immobilizer
Operation 0 46 .
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0 172 . IntelliBeam ®
Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled.
See Exterior Lamp Controls 0 170 .
Lamps On Reminder
This light comes on when the
exterior lamps are in use. See
Exterior Lamp Controls 0 170 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
142 Instruments and Controls Economy can be reset by pressing
and holding SEL while this display
is active.
Instantaneous Fuel Economy :
Shows the current fuel economy in
either liters per 100 kilometers (L/
100 km) or miles per gallon (mpg).
This number reflects only the
approximate fuel economy that the
vehicle has right now and changes
frequently as driving conditions
change.
Average Speed : Shows the
average speed of the vehicle in
kilometers per hour (km/h) or miles
per hour (mph). This average is
calculated based on the various
vehicle speeds recorded since the
last reset of this value. The average
speed can be reset by pressing and
holding SEL while this display is
active.
Timer : This display can be used as
a timer. To start the timer, press SEL
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
SEL briefly while this display is active and the timer is running. To
reset the timer to zero, press and
hold SEL while this display is active.
Compass (Uplevel Cluster) :
Shows the direction the vehicle is
driving.
Driver Efficiency Gauge : Guide to
driving in an efficient manner by
keeping the ball green and in the
center of the gauge. Hard braking or
acceleration cause the ball to travel
away from the center of the gauge.
Speed Limit : Shows the current
speed limit. The information for this
page comes from a roadway
database.
Speed Warning : Allows the driver
to set a speed that they do not want
to exceed. To set the Speed
Warning, press SEL when Speed
Warning is displayed. Press
y or
z to adjust the value. This feature
can be turned off by pressing and
holding SEL while viewing this
page. If the selected speed limit is
exceeded, a pop-up warning is
displayed and a chime may sound. Cruise Set Speed : Shows the
speed the cruise control or Adaptive
Cruise Control is set to.
Driver Assistance (Uplevel
Cluster) : May show information for
Lane Keep Assist (LKA), Lane
Departure Warning (LDW), Adaptive
Cruise Control (ACC), and Forward
Collision Alert (FCA). The display
shows if there is a vehicle detected
ahead, and the current FCA timing
setting. In addition, when ACC is not
engaged, the current follow time to
the vehicle ahead is displayed as a
time value on this page.
Battery Voltage : Shows the
current battery voltage.
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.
See Engine Oil Messages 0 149 .
The oil should be changed as soon
as possible. See Engine Oil 0 270 .
In addition to the engine oil life

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 143system monitoring the oil life,
additional maintenance is
recommended. See Maintenance
Schedule 0 344 .
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 0 272 .
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 0 308 and Tire
Pressure Monitor Operation 0 309 .
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)
{ WarningIf 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 image is
projected through the HUD lens on
top of the instrument panel. The
information appears as an image
focused out toward the front of the
vehicle. CautionIf 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 Vehicle
Personalization 0 157 and “ Cluster
Options Menu ” under Instrument
Cluster (Uplevel) 0 121 or
Instrument Cluster (Base
Level) 0 118 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
144 Instruments and Controls
HUD Display on the Vehicle
Windshield
The HUD may display some of the
following vehicle information and
vehicle messages or alerts:
.
Speed
.
Tachometer
.
Audio
.
Phone
.
Navigation
.
Collision Alert
.
Cruise Control
.
Lane Keep Assist
.
Low Fuel Some vehicle messages or alerts
displayed in the HUD may be
cleared by using the steering wheel
controls. See Vehicle
Messages 0 146 .
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 down or lift up 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 up and hold to brighten
the display. Press down and hold to
dim the display. Hold down to turn
the display off.
The HUD image will automatically
dim and brighten to compensate for
outside lighting. The HUD
brightness control can also be
adjusted as needed.
The HUD image can temporarily
light up depending on the angle and
position of the sunlight on the HUD
display. This is normal.
Polarized sunglasses could make
the HUD image harder to see.
HUD Views
There are four views in the HUD.
Some vehicle information and
vehicle messages or alerts may be
displayed in any view.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 149TRUNK OPEN This message will display along with
a symbol when the trunk is open.
Close the trunk completely.
Engine Cooling System
Messages A/C OFF DUE TO HIGH
ENGINE TEMP This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. The vehicle can continue to be
driven.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine. COOLANT LEVEL LOW ADD
COOLANT This message will display if the
coolant is low. See Engine
Coolant 0 277 .
ENGINE OVERHEATED —
IDLE ENGINE This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature. HIGH COOLANT
TEMPERATURE This message may display if the
coolant temperature is hot. See
Engine Overheating 0 280 .
Engine Oil Messages CHANGE ENGINE OIL SOON This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the oil life system. See
Engine Oil Life System 0 272 , Driver
Information Center (DIC) 0 140 ,
Engine Oil 0 270 , and Maintenance
Schedule 0 344 .
ENGINE OIL HOT, IDLE
ENGINE This message displays when the
engine oil temperature is too hot.
Stop and allow the vehicle to idle
until it cools down.
ENGINE OIL LOW — ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
150 Instruments and Controls before filling to the recommended
level. If the oil is not low and this
message remains on, take the
vehicle to your dealer for service.
See Engine Oil 0 270 .
OIL PRESSURE LOW — TURN
VEHICLE OFF This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.
Engine Power Messages ENGINE POWER IS REDUCED This message displays when the
vehicle's engine power is reduced.
Reduced engine power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced speed while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, the vehicle
should be taken to your dealer for
service as soon as possible.
Fuel System Messages FUEL LEVEL LOW This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
Key and Lock Messages NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE This message displays when trying
to start the vehicle if an RKE
transmitter is not detected. The
transmitter battery may be weak.
See “ Starting the Vehicle with a Low
Transmitter Battery ” under Remote
Keyless Entry (RKE) System
Operation 0 29 . NO REMOTE DETECTED This message displays when the
transmitter battery may be weak.
See “ Starting the Vehicle with a Low
Transmitter Battery ” under Remote
Keyless Entry (RKE) System
Operation 0 29 .
NO REMOTE DETECTED
PRESS BRAKE TO RESTART This message displays when
attempting to turn off the vehicle
and the RKE transmitter is no longer
detected. Restarting is allowed
without the RKE transmitter for
five minutes. Press the brake pedal
and ENGINE START/STOP to
restart the vehicle.
NUMBER OF KEYS
PROGRAMMED This message displays when
programming new keys to the
vehicle.
REMOTE LEFT IN VEHICLE
This message displays when
leaving the vehicle with the RKE
transmitter still inside.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 155
Security Messages THEFT ATTEMPTED This message displays if the vehicle
detects a tamper condition.
Service Vehicle Messages SERVICE POWER STEERING This message displays and a chime
may sound when there may be a
problem with the power steering
system. If this message displays
and a reduction in steering
performance or loss of power
steering assistance is noticed, see
your dealer.
SERVICE VEHICLE SOON This message is displayed if there is
a problem with the vehicle. Take the
vehicle to your dealer for service. Steering System
Messages ACTION REQUIRED TURN
STEERING WHEEL START
VEHICLE AGAIN This message displays to indicate
that the steering column lock device
was unable to unlock the column,
and the engine did not start. If this
happens, immediately turn the
steering wheel from side to side.
If that does not unlock the steering
column, turn the ignition off, and
then open the driver door. Then turn
the vehicle back on and turn the
steering wheel from side to side for
about 15 seconds. The steering
column must be turned to each side
immediately after pressing ENGINE
START/STOP to help the steering
column lock device unlock the
column. In some situations it may
take significant force. This situation
may be avoided by straightening the
front wheels before turning off the
engine. SERVICE ACTIVE STEERING
SYSTEM This message displays when there
may be a problem with Active Rear
Steer system. The rear wheels may
be locked at current position and the
driver may experience a small
steering wheel correction for the
vehicle going forward. If the problem
persists for the next ignition cycle,
see your dealer for service.
SERVICE STEERING
COLUMN LOCK This message displays when a
problem with the steering column
lock device has been detected. See
your dealer for service.
STEERING COLUMN LOCKED This message displays when the
steering column is locked with the
engine running. It is normal for the
steering column to be locked during
a remote start. The steering column
should unlock after the brake pedal
and ENGINE START/STOP are
pressed.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
156 Instruments and Controls
Starting the Vehicle
Messages PRESS BRAKE TO START This message is displayed when
attempting to start the vehicle
without first pressing the brake
pedal.
SERVICE KEYLESS START
SYSTEM This message is displayed if there is
a problem with the pushbutton start
system. Take the vehicle to your
dealer for service.
Tire Messages SERVICE TIRE MONITOR
SYSTEM This message displays if there is a
problem with the Tire Pressure
Monitor System (TPMS). See Tire
Pressure Monitor Operation 0 309 . TIRE LEARNING ACTIVE This message displays when the
system is learning new tires. See
Tire Pressure Monitor
Operation 0 309 .
TIRE PRESSURE LOW ADD
AIR TO TIRE This message displays when the
pressure in one or more of the tires
is low.
This message also displays LEFT
FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate
the location of the low tire.
The low tire pressure warning light
will also come on. See Tire
Pressure Light 0 137 .
If a tire pressure message appears
on the DIC, stop as soon as
possible. Inflate the tires by adding
air until the tire pressure is equal to
the values shown on the Tire and
Loading Information label. See Tires
0 299 , Vehicle Load Limits 0 198 ,
and Tire Pressure 0 306 . More than one tire pressure
message can appear at a time. The
DIC also shows the tire pressure
values. See Driver Information
Center (DIC) 0 140 .
Transmission Messages SERVICE TRANSMISSION This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT DENIED This message displays when using
Manual Mode and attempting to shift
to a gear not appropriate for the
vehicle speed and engine
revolutions per minute (rpm). See
Manual Mode 0 212 .
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
turning the ignition off if the vehicle
is not in P (Park).

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 157TRANSMISSION HOT — IDLE
ENGINE This message displays and a chime
sounds if the transmission fluid in
the vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle.
Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears when the fluid
temperature reaches a safe level.
Vehicle Reminder
Messages ICE POSSIBLE DRIVE
WITH CARE This message displays when ice
conditions are possible.
Vehicle Speed Messages SPEED LIMIT EXCEEDED
This message is displayed when the
vehicle speed is greater than the set
speed. See "Speed Warning" under
Driver Information Center
(DIC) 0 140 . Washer Fluid Messages WASHER FLUID LOW ADD
FLUID This message may display when the
washer fluid level is low. Fill the
windshield washer reservoir as soon
as possible. See Engine
Compartment Overview 0 265 for
the location of the windshield
washer reservoir. Also, see Washer
Fluid 0 281 .
Window Messages OPEN, THEN CLOSE DRIVER/
PASSENGER WINDOW This message is displayed when the
window needs to be reprogrammed.
If the vehicle's battery has been
recharged or disconnected, you will
need to program each front window
for the express-up feature to work.
See Power Windows 0 52 .Vehicle
Personalization Use the audio system controls to
access the personalization menus
for customizing vehicle features.
The following are all possible
personalization features. Depending
on the vehicle, some may not be
available.
Infotainment System Audio
System Controls
To access the
personalization menu:
1. Touch SETTINGS on the Home
Page of the infotainment
system display.
2. Touch the desired feature to
display a list of available
options.
3. Touch to select the desired
feature setting.
4. Touch
S Back to exit or move
backward in a menu.