2016 CADILLAC CT6 coolant

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Introduction 3
{ DangerDanger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{ WarningWarning indicates a hazard that
could result in injury or death.
CautionCaution indicates a hazard that
could result in property or vehicle
damage. A circle with a slash through it is a
safety symbol which means “ Do
Not, ” “ Do not do this, ” or “ Do not let
this happen. ”
Symbols The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M : Shown when the owner
manual has additional instructions
or information.
* : Shown when the service
manual has additional instructions
or information.
0 : Shown when there is more
information on another page —
“ see page. ”
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index. 9 : Airbag Readiness Light
# : Air Conditioning
G : Air Conditioning Refrigerant Oil
! : Antilock Brake System (ABS)
g : Audio Steering Wheel Controls
or OnStar ®
(if equipped)
$ : Brake System Warning Light
I : Certified Technician
" : Charging System
I : Cruise Control
` : Do Not Puncture
^ : Do Not Service
B : Engine Coolant Temperature
O : Exterior Lamps
_ : Flame/Fire Prohibited
H : Flammable
. : Fuel Gauge
+ : Fuses
3 : Headlamp High/Low-Beam
Changer
( : Heated Steering Wheel
j : LATCH System Child Restraints

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 37Canceling a Remote Start
To cancel a remote start, do one of
the following:
.
Press and hold
/ until the
parking lamps turn off.
.
Turn on the hazard warning
flashers.
.
Turn the vehicle on and then off.
Conditions in Which Remote Start
Will Not Work
The remote start will not operate if
any of the following occur:
.
The ignition is in any mode other
than OFF.
.
The transmitter is in the vehicle.
.
The hood is not closed.
.
The hazard warning flashers
are on.
.
There is an emission control
system malfunction.
.
The engine coolant temperature
is too high.
.
The oil pressure is low. .
Two remote vehicle starts have
already been used.
.
The vehicle is not in P (Park).
Door Locks
{ WarningUnlocked doors can be
dangerous.
.
Passengers, especially
children, can easily open
the doors and fall out of a
moving vehicle. The chance
of being thrown out of the
vehicle in a crash is
increased if the doors are
not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
.
Young children who get into
unlocked vehicles may be
unable to get out. A child
can be overcome by
(Continued) Warning (Continued) extreme heat and can suffer
permanent injuries or even
death from heat stroke.
Always lock the vehicle
whenever leaving it.
.
Outsiders can easily enter
through an unlocked door
when slowing or stopping
the vehicle. Lock the doors
to help prevent this from
happening.
Inside the Vehicle
Press the power door lock switch to
lock or unlock all doors.
Push down on the door lock knob to
lock that door. Pull once on the door
handle to unlock and again to open
the door.
Outside the Vehicle
Use the Remote Keyless Entry
(RKE) transmitter or the key lock
cylinder on the driver front door. The
key lock cylinder is covered with
a cap.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 109
Instruments and
Controls Controls Steering Wheel Adjustment . . . 110
Steering Wheel Controls . . . . . . 111
Heated Steering Wheel . . . . . . . 111
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Windshield Wiper/Washer . . . . . 111
Compass . . . . . . . . . . . . . . . . . . . . . 113
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 113
Power Outlets . . . . . . . . . . . . . . . . 114
Wireless Charging . . . . . . . . . . . . 115
Warning Lights, Gauges, and
Indicators Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 117
Instrument Cluster (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . 118
Instrument Cluster
(Uplevel) . . . . . . . . . . . . . . . . . . . . 121
Speedometer . . . . . . . . . . . . . . . . . 123
Odometer . . . . . . . . . . . . . . . . . . . . . 124
Trip Odometer . . . . . . . . . . . . . . . . 124
Tachometer . . . . . . . . . . . . . . . . . . . 124
Fuel Gauge . . . . . . . . . . . . . . . . . . . 124
Boost Gauge (Performance
Configuration Only) . . . . . . . . . 125 Engine Oil Pressure Gauge
(Base Level Cluster Only) . . . 126
Engine Oil Temperature Gauge
(Performance
Configuration Only) . . . . . . . . . 127
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 128
Voltmeter Gauge (Base Level
Cluster Only) . . . . . . . . . . . . . . . . 129
Safety Belt Reminders . . . . . . . . 129
Airbag Readiness Light . . . . . . . 130
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 130
Charging System Light . . . . . . . 131
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 132
Brake System Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . 133
Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . 134
Service Electric Parking Brake
Light . . . . . . . . . . . . . . . . . . . . . . . . 134
Antilock Brake System (ABS)
Warning Light . . . . . . . . . . . . . . . 135
Lane Keep Assist (LKA)
Light . . . . . . . . . . . . . . . . . . . . . . . . 135
Vehicle Ahead Indicator . . . . . . 136
Pedestrian Ahead Indicator . . . 136
Traction Off Light . . . . . . . . . . . . . 136
StabiliTrak ®
OFF Light . . . . . . . . 136 Traction Control System (TCS)/
StabiliTrak ®
Light . . . . . . . . . . . 137
Engine Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 137
Tire Pressure Light . . . . . . . . . . . 137
Engine Oil Pressure Light . . . . 138
Low Fuel Warning Light . . . . . . 138
Auto Stop Mode (Uplevel
Cluster) . . . . . . . . . . . . . . . . . . . . . 139
Security Light . . . . . . . . . . . . . . . . . 139
High-Beam On Light . . . . . . . . . . 139
Lamps On Reminder . . . . . . . . . 139
Cruise Control Light . . . . . . . . . . 140
Door Ajar Light . . . . . . . . . . . . . . . 140
Information Displays Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 140
Head-Up Display (HUD) . . . . . . 143
Vehicle Messages Vehicle Messages . . . . . . . . . . . . 146
Battery Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 147
Brake System Messages . . . . . 147
Compass Messages . . . . . . . . . . 148
Cruise Control Messages . . . . . 148
Door Ajar Messages . . . . . . . . . . 148
Engine Cooling System
Messages . . . . . . . . . . . . . . . . . . . 149
Engine Oil Messages . . . . . . . . . 149

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
128 Instruments and Controls
Engine Coolant
Temperature Gauge
Base Level Metric Standard
Theme Shown Base Level English Standard
Theme Shown
Uplevel Metric Balanced
Configuration Shown Uplevel English Balanced
Configuration Shown
This gauge measures the
temperature of the vehicle's engine
coolant.
While driving under normal
operating conditions, if the needle
moves into the red area, the engine
is too hot. Pull off the road, stop the
vehicle, and turn off the engine as
soon as possible.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 137
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
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 system
is actively working. See Traction Control/Electronic
Stability Control 0 217 .
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. CautionThe engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating 0 280 .
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 0 280 .
Tire Pressure Light

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
Driving and Operating 191
Driving and
Operating Driving Information Distracted Driving . . . . . . . . . . . . 192
Defensive Driving . . . . . . . . . . . . . 193
Drunk Driving . . . . . . . . . . . . . . . . . 193
Control of a Vehicle . . . . . . . . . . . 193
Braking . . . . . . . . . . . . . . . . . . . . . . . 193
Steering . . . . . . . . . . . . . . . . . . . . . . 194
Off-Road Recovery . . . . . . . . . . . 194
Loss of Control . . . . . . . . . . . . . . . 195
Driving on Wet Roads . . . . . . . . 195
Hill and Mountain Roads . . . . . 196
Winter Driving . . . . . . . . . . . . . . . . 197
If the Vehicle Is Stuck . . . . . . . . 198
Vehicle Load Limits . . . . . . . . . . . 198
Starting and Operating New Vehicle Break-In . . . . . . . . . 202
Ignition Positions . . . . . . . . . . . . . 202
Starting the Engine . . . . . . . . . . . 204
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 206
Engine Coolant Heater . . . . . . . 206
Shifting Into Park . . . . . . . . . . . . . 207
Shifting out of Park . . . . . . . . . . . 208
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 209 Engine Exhaust Engine Exhaust . . . . . . . . . . . . . . 209
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . 210
Automatic Transmission Automatic Transmission . . . . . . 210
Manual Mode . . . . . . . . . . . . . . . . . 212
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . . 213
Brakes Antilock Brake
System (ABS) . . . . . . . . . . . . . . . 214
Electric Parking Brake . . . . . . . . 214
Brake Assist . . . . . . . . . . . . . . . . . . 216
Hill Start Assist (HSA) . . . . . . . . 216
Automatic Vehicle
Hold (AVH) . . . . . . . . . . . . . . . . . . 217
Ride Control Systems Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 217
Driver Mode Control . . . . . . . . . . 219
Cruise Control Cruise Control . . . . . . . . . . . . . . . . 220
Adaptive Cruise Control . . . . . . 223
Driver Assistance Systems
Driver Assistance Systems . . . 230 Assistance Systems for
Parking or Backing . . . . . . . . . . 231
Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . 237
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . 237
Front Automatic Braking (FAB)
System . . . . . . . . . . . . . . . . . . . . . . 240
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . 241
Night Vision System . . . . . . . . . . 243
Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 246
Lane Change Alert (LCA) . . . . . 246
Lane Departure
Warning (LDW) . . . . . . . . . . . . . 248
Lane Keep Assist (LKA) . . . . . . 248
Surround Vision Recorder . . . . 250
Fuel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 251
California Fuel
Requirements . . . . . . . . . . . . . . . 253
Fuels in Foreign Countries . . . 253
Fuel Additives . . . . . . . . . . . . . . . . 253
Filling the Tank . . . . . . . . . . . . . . . 253
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 255

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
206 Driving and Operating defog settings. See Automatic
Climate Control System (Quad
Zone) 0 178
or Automatic Climate Control
System (Dual Zone) 0 185 .
.
The Auto Stop time is greater
than two minutes.
The automatic engine stop/start
function can be disabled by
touching
h on the touchscreen.
The indicator next to the switch will
come on when the system is active. Retained Accessory
Power (RAP) These vehicle accessories can be
used for up to 10 minutes after the
engine is turned off:
.
Audio System
.
Power Windows
.
Sunroof (if equipped)
Power to the audio system will work
up to 10 minutes or until the driver
door is opened. Power to the
windows or sunroof will work up to
10 minutes or until any door is
opened.
Engine Coolant Heater Vehicles with the engine coolant
heater can use this option in cold
weather conditions at or below − 18 °
C (0 °F) for easier starting and better
fuel economy during engine
warm-up. Plug in the coolant heater
at least four hours before starting
your vehicle. An internal thermostat
in the plug-end of the cord may exist which will prevent engine coolant
heater operation at temperatures
above − 18 °C (0 °F).
To Use the Engine Coolant
Heater 1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The cord is
clipped to the diagonal brace
on the passenger side of the
engine compartment.
Check the heater cord for
damage. If it is damaged, do
not use it. See your dealer for
a replacement. Inspect the
cord for damage yearly.
3. Plug it into a normal, grounded
110-volt AC outlet.