2018 CADILLAC CT6 pressure

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INTRODUCTION 3
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution 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’s 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. See the features in this
manual for information.
9: Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
$:Brake System Warning Light
":Charging System (12-Volt
Battery)
I: Cruise Control
`:Do Not Puncture
^:Do Not Service
B:Engine Coolant Temperature
O:Exterior Lamps
g: First Responder
_:Flame/Fire Prohibited
.:Fuel Gauge
+: Fuses
3:Headlamp High/Low-Beam
Changer
_: High Voltage
j: LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
O:Power
/:Remote Vehicle Start
>:Seat Belt Reminders
h:Start/Stop
7: Tire Pressure Monitor
d:Traction Control/StabiliTrak
a:Under Pressure
M: Windshield Washer Fluid

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
IN BRIEF 5
In Brief
Instrument Panel
Instrument Panel Overview . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . . 8
Stop/Start System(Gasoline Only) . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . . . . . 11
Memory Features . . . . . . . . . . . . . . . . . . 13
Second Row Seats . . . . . . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . . . . 14
Head Restraint Adjustment . . . . . . . 15
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Passenger Sensing System . . . . . . . . 15
Mirror Adjustment . . . . . . . . . . . . . . . . 16
Steering Wheel Adjustment . . . . . . . 16
Interior Lighting . . . . . . . . . . . . . . . . . . . 17
Exterior Lighting . . . . . . . . . . . . . . . . . . . 17
Windshield Wiper/Washer . . . . . . . . 18
Climate Controls . . . . . . . . . . . . . . . . . . . 19
Transmission . . . . . . . . . . . . . . . . . . . . . . . 20
Vehicle Features
Infotainment System . . . . . . . . . . . . . . 21
Steering Wheel Controls . . . . . . . . . . 21
Cruise Control . . . . . . . . . . . . . . . . . . . . . 21
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Night Vision System . . . . . . . . . . . . . . . 22
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . . . . . 22
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lane Keep Assist (LKA) . . . . . . . . . . . 23
Lane Change Alert (LCA) . . . . . . . . . . 23
Surround Vision . . . . . . . . . . . . . . . . . . . 23
Rear Vision Camera (RVC) . . . . . . . . 23
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parking Assist . . . . . . . . . . . . . . . . . . . . . . 24
Automatic Parking Assist (APA) . . . . . . . . . . . . . . . . . . . . . . 24
Reverse Automatic Braking (RAB) . . . . . . . . . . . . . . . . . . . . 24
Surround Vision Recorder . . . . . . . . . 24
Power Outlets . . . . . . . . . . . . . . . . . . . . . . 24
Universal Remote System . . . . . . . . . 25
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
PLUG-IN Features
High Voltage Safety Information . . . . . . . . . . . . . . . . . . . . . . 26
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Regenerative Braking . . . . . . . . . . . . . . 29
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . 30
Tire Pressure Monitor . . . . . . . . . . . . . 30
Fuel (2.0L L4 Turbo Engine) . . . . . . 30
Fuel (3.0L Twin Turbo V6 Engine) . . . . . . . . . . . . . . . . . . . . . . . . 31
Fuel (3.6L V6 Engine) . . . . . . . . . . . . . 31
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . 31
Engine Oil Life System . . . . . . . . . . . . 31
Driving for Better Fuel Economy (Gasoline Only) . . . . . . . . . . . . . . . . . . . 32
Driving for Better Energy Efficiency (PLUG-IN Only) . . . . . . 32
Roadside Service . . . . . . . . . . . . . . . . . . . 33

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
30 IN BRIEF
Performance and
Maintenance
Traction Control/Electronic
Stability Control
The Traction Control System (TCS)
limits wheel spin. The system is on
when the vehicle is started.
The StabiliTrak system assists with
directional control of the vehicle in
difficult driving conditions. The
system is on when the vehicle is
started.
.To turn off TCS, press and release
Yon the center console.iilluminates in the instrument
cluster and the appropriate DIC
message displays.
. Press and release
Yagain to turn
TCS back on.
. To turn off both TCS and
StabiliTrak, press and hold
Yon
the center console until
gandi
illuminate in the instrument
cluster. The appropriate DIC
message displays. .
Press and release
Yagain to turn
on both systems.
See Traction Control/Electronic Stability
Control 0239.
The vehicle has Driver Mode Control.
See Driver Mode Control (Gasoline Only)
0 241.
Tire Pressure Monitor
This vehicle may have a Tire Pressure
Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in pressure
of one of the vehicle's tires. If the
warning light comes on, stop as soon
as possible and inflate the tires to the
recommended pressure shown on the
Tire and Loading Information label.
See Vehicle Load Limits 0213. The
warning light will remain on until the
tire pressure is corrected. The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the tire
pressures are getting low and the tires
need to be inflated to the proper
pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See
Tire Pressure Monitor System
0 349.
Fuel (2.0L L4 Turbo Engine)
Premium Recommended Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with an octane rating as low
as 87 may be used, but it will reduce
performance and fuel economy. See
Fuel 0286.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
KEYS, DOORS, AND WINDOWS 43
A maximum of two remote starts, or a
remote start with an extension, are
allowed between ignition cycles.
The vehicle's ignition must be turned
from on to off before the remote start
procedure can be used again.
Canceling a Remote Start
To cancel a remote start, do any 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.
. A 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
{Warning
Unlocked doors can be dangerous.
. Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The doors can be
unlocked and opened while
the vehicle is moving. 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 seat belts
(Continued)
Warning (Continued)
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 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 you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
To lock or unlock the door from
outside the vehicle:
. Press
QorKon the Remote
Keyless Entry (RKE) transmitter.
. In the case of a dead battery, use
the key in the driver door. The key
cylinder is covered with a cap.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
118 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . 119
Steering Wheel Controls . . . . . . . . . 119
Heated Steering Wheel . . . . . . . . . . 119
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Windshield Wiper/Washer . . . . . . . 120
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Power Outlets . . . . . . . . . . . . . . . . . . . . . 123
Wireless Charging . . . . . . . . . . . . . . . . 124
Cigarette Lighter . . . . . . . . . . . . . . . . . . 125
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 126
Instrument Cluster (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Instrument Cluster (Uplevel) . . . . 130
Speedometer . . . . . . . . . . . . . . . . . . . . . . 134
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 134
Trip Odometer . . . . . . . . . . . . . . . . . . . . 134
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 134
Battery Gauge (High Voltage) . . . 135
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 135 Power Indicator Gauge
(PLUG-IN Only) . . . . . . . . . . . . . . . . . 136
Boost Gauge (Performance Configuration Only) . . . . . . . . . . . . 136
Engine Oil Pressure Gauge (Base
Level Cluster Only) . . . . . . . . . . . . . 137
Engine Oil Temperature Gauge (Performance
Configuration Only) . . . . . . . . . . . . 138
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Voltmeter Gauge (Base Level Cluster Only) . . . . . . . . . . . . . . . . . . . . 140
Seat Belt Reminders . . . . . . . . . . . . . . 140
Airbag Readiness Light . . . . . . . . . . 141
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 141
Charging System Light . . . . . . . . . . . 142
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 143
Service Vehicle Soon Light (PLUG-IN Only) . . . . . . . . . . . . . . . . . 145
Brake System Warning Light . . . . 145
Electric Parking Brake Light . . . . . 145
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 146
Sport Mode Light . . . . . . . . . . . . . . . . . 146
Winter Driving Mode Light . . . . . . 146 Automatic Vehicle Hold (AVH)
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Lane Keep Assist (LKA) Light . . . 147
Vehicle Ahead Indicator . . . . . . . . . 147
Pedestrian Ahead Indicator . . . . . . 147
Traction Off Light . . . . . . . . . . . . . . . . 148
StabiliTrak OFF Light . . . . . . . . . . . . 148
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 148
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 149
Tire Pressure Light . . . . . . . . . . . . . . . 149
Engine Oil Pressure Light . . . . . . . . 149
Low Fuel Warning Light . . . . . . . . . 150
Auto Stop Mode (Uplevel Cluster) . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Security Light . . . . . . . . . . . . . . . . . . . . . 150
Vehicle Ready Light (PLUG-IN Only) . . . . . . . . . . . . . . . . . 151
High-Beam On Light . . . . . . . . . . . . . 151
Lamps On Reminder . . . . . . . . . . . . . 151
Cruise Control Light . . . . . . . . . . . . . . 151
Door Ajar Light . . . . . . . . . . . . . . . . . . . 152
Information Displays
Power Flows (PLUG-IN Only) . . . . 152
Programmable Charging (PLUG-IN Only) . . . . . . . . . . . . . . . . . 152
Energy Information (PLUG-IN Only) . . . . . . . . . . . . . . . . . 161

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INSTRUMENTS AND CONTROLS 137
English
This gauge indicates boost under
heavier throttle.
It displays the air pressure level in the
intake manifold before it enters the
engine's combustion chamber.
The gauge is automatically centered at
zero every time the engine is started.
Actual boost is displayed from this
zero point. Changes in ambient
pressure, such as driving in mountains
and changing weather, will slightly
change the zero reading.
Engine Oil Pressure Gauge
(Base Level Cluster Only)
Metric Standard Theme
English Standard Theme
The engine oil pressure gauge shows
the engine oil pressure
in kPa (kilopascals) or psi (pounds per
square inch) when the engine is
running.
Oil pressure can vary with engine
speed, outside temperature, and oil
viscosity.
On some models, the oil pump will
vary engine oil pressure according to
engine needs. Oil pressure may change
quickly as the engine speed or load
varies. This is normal.
If the oil pressure warning light or
Driver Information Center (DIC)
message indicates oil pressure outside

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
138 INSTRUMENTS AND CONTROLS
the normal operating range, check the
vehicle's oil as soon as possible. See
Engine Oil0307.
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.
Engine Oil Temperature
Gauge (Performance
Configuration Only)
Metric
English
This gauge shows the engine oil
temperature.
If the gauge pointer moves into the
high end, it means that the engine oil
has overheated. If the vehicle has been
operated under normal driving
conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible.
See Engine Oil 0307.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INSTRUMENTS AND CONTROLS 149
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
and it may not be covered by the
vehicle warranty. SeeEngine
Overheating 0321. 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
0321.
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 0347.
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 0350.
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
(Continued)