2017 CADILLAC CT6 fuel

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
KEYS, DOORS, AND WINDOWS 49
The RCM may not work properly or
display a clear image if:
.There is glare from the sun or
headlamps. This may obstruct
objects from view.
. Dirt, snow, or other debris blocks
the camera lens. Clean the lens
with a soft damp cloth.
. The back of the vehicle has been
damaged and the position and
mounting angle of the camera has
changed.Windows
{Warning
Never leave a child, a helpless adult,
or a pet alone in a vehicle,
especially with the windows closed
in warm or hot weather. They can
be overcome by the extreme heat
and suffer permanent injuries or
even death from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the sound,
open either a front window or the
sunroof, if equipped.
Power Windows
{Warning
Children could be seriously injured
or killed if caught in the path of a
closing window. Never leave keys in
a vehicle with children. When there
are children in the rear seat, use the
window lockout button to prevent
operation of the windows. See
Keys 028.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
SEATS AND RESTRAINTS 79
{Warning
When an airbag inflates, there may
be dust in the air. This dust could
cause breathing problems for
people with a history of asthma or
other breathing trouble. To avoid
this, everyone in the vehicle should
get out as soon as it is safe to do
so. If you have breathing problems
but cannot get out of the vehicle
after an airbag inflates, then get
fresh air by opening a window or a
door. If you experience breathing
problems following an airbag
deployment, you should seek
medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn
on the interior lamps and hazard
warning flashers, and shut off the fuel
system after the airbags inflate. The
feature may also activate, without
airbag inflation, after an event that
exceeds a predetermined threshold.
You can lock the doors, turn off the interior lamps, and turn off the hazard
warning flashers by using the controls
for those features.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle,
such as the fuel system, brake and
steering systems, etc. Even if the
vehicle appears to be drivable after
a moderate crash, there may be
concealed damage that could make
it difficult to safely operate the
vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
. Airbags are designed to inflate
only once. After an airbag inflates,
you will need some new parts for the airbag system. If you do not
get them, the airbag system will
not be there to help protect you in
another crash. A new system will
include airbag modules and
possibly other parts. The service
manual for the vehicle covers the
need to replace other parts.
. The vehicle has a crash sensing
and diagnostic module which
records information after a crash.
See Vehicle Data Recording and
Privacy 0325 and Event Data
Recorders 0325.
. Let only qualified technicians
work on the airbag systems.
Improper service can mean that
an airbag system will not work
properly. See your dealer for
service.
Passenger Sensing System
The vehicle has a passenger sensing
system for the front outboard
passenger position. The passenger
airbag status indicator will light on
the overhead console when the vehicle
is started.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
INSTRUMENTS AND CONTROLS 107
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . 108
Steering Wheel Controls . . . . . . . . . 108
Heated Steering Wheel . . . . . . . . . . 108
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Windshield Wiper/Washer . . . . . . . 109
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Power Outlets . . . . . . . . . . . . . . . . . . . . . 111
Wireless Charging . . . . . . . . . . . . . . . . 113
Cigarette Lighter . . . . . . . . . . . . . . . . . . 114
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 114
Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Instrument Cluster (Uplevel) . . . . 118
Speedometer . . . . . . . . . . . . . . . . . . . . . . 121
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 121
Trip Odometer . . . . . . . . . . . . . . . . . . . . 121
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 121
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 121
Boost Gauge (Performance Configuration Only) . . . . . . . . . . . . 122 Engine Oil Pressure Gauge (Base
Level Cluster) . . . . . . . . . . . . . . . . . . . 123
Engine Oil Temperature Gauge (Performance
Configuration Only) . . . . . . . . . . . . 123
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Voltmeter Gauge (Base Level Cluster) . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Safety Belt Reminders . . . . . . . . . . . . 125
Airbag Readiness Light . . . . . . . . . . 126
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 126
Charging System Light . . . . . . . . . . . 127
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 127
Brake System Warning Light . . . . 129
Electric Parking Brake Light . . . . . 130
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 130
Lane Keep Assist (LKA) Light . . . 131
Vehicle Ahead Indicator . . . . . . . . . 131
Pedestrian Ahead Indicator . . . . . . 131
Traction Off Light . . . . . . . . . . . . . . . . 131
StabiliTrak
®OFF Light . . . . . . . . . . . 132
Traction Control System (TCS)/ StabiliTrak
®Light . . . . . . . . . . . . . . 132
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 132 Tire Pressure Light . . . . . . . . . . . . . . . 133
Engine Oil Pressure Light . . . . . . . . 133
Low Fuel Warning Light . . . . . . . . . 134
Auto Stop Mode (Uplevel
Cluster) . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Security Light . . . . . . . . . . . . . . . . . . . . . 134
High-Beam On Light . . . . . . . . . . . . . 134
Lamps On Reminder . . . . . . . . . . . . . 135
Cruise Control Light . . . . . . . . . . . . . . 135
Door Ajar Light . . . . . . . . . . . . . . . . . . . 135
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . 136
Head-Up Display (HUD) . . . . . . . . . 138
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 141
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . . . . . . 141
Brake System Messages . . . . . . . . . . 142
Cruise Control Messages . . . . . . . . . 142
Door Ajar Messages . . . . . . . . . . . . . . 143
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . . . . . . . 143
Engine Oil Messages . . . . . . . . . . . . . 144
Engine Power Messages . . . . . . . . . . 144
Fuel System Messages . . . . . . . . . . . 145
Key and Lock Messages . . . . . . . . . . 145
Lamp Messages . . . . . . . . . . . . . . . . . . . 145

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
INSTRUMENTS AND CONTROLS 121
Speedometer
The speedometer shows the vehicle's
speed in kilometers per hour (km/h)
or miles per hour (mph).
This vehicle is equipped with an
overspeed warning device. When the
vehicle's speed reaches 120 km/h
(75 mph), a chime will sound.
A message also displays in the Driver
Information Center (DIC). SeeVehicle
Speed Messages 0151.
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and
reset through the Driver Information
Center (DIC). See Driver Information
Center (DIC) 0136.
Tachometer
The tachometer displays the engine
speed in revolutions per minute (rpm).
On the base cluster, if the vehicle has
the Stop/Start system, when the
ignition is in ON/RUN, the tachometer
indicates the vehicle status. When
pointing to AUTO STOP, the engine is
off but the vehicle is on and can
move. The engine could auto start at
any time. When the indicator points
to OFF, the vehicle is off.
When the engine is on, the
tachometer will indicate the engine’s
revolutions per minute (rpm). The
tachometer may vary by several
hundred rpm’s, during Auto Stop
mode, when the engine is shutting off
and restarting.
A slight bump may be felt when the
transmission is determining the most
fuel efficient operating range.Caution
If the engine is operated with the
rpm’s in the warning area at the
high end of the tachometer, the
vehicle could be damaged, and the
damage would not be covered by
the vehicle warranty. Do not operate
the engine with the rpm’s in the
warning area.
Fuel Gauge
Base Level Standard Theme

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
122 INSTRUMENTS AND CONTROLS
Uplevel Balanced Configuration
When the ignition is on, the fuel
gauge indicates about how much fuel
is left in the tank.
There is an arrow near the fuel gauge
pointing to the side of the vehicle the
fuel door is on.
When the indicator nears empty, the
low fuel light comes on. There still is
a little fuel left, but the vehicle should
be refueled soon. Here are four things that some owners
ask about. None of these show a
problem with the fuel gauge:
.
At the service station, the fuel
pump shuts off before the gauge
reads full.
. It takes a little more or less fuel to
fill up than the gauge indicated.
For example, the gauge may have
indicated the tank was half full,
but it actually took a little more or
less than half the tank's capacity
to fill the tank.
. The gauge moves a little while
turning a corner or speeding up.
. The gauge takes a few seconds to
stabilize after the ignition is
turned on, and goes back to empty
when the ignition is turned off.
Boost Gauge (Performance
Configuration Only)
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.

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
128 INSTRUMENTS AND CONTROLS
on to show that it is working when
the ignition is in Service Only Mode.
SeeIgnition Positions 0195.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when it
comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not run
smoothly. This could lead to costly
repairs that might not be covered
by the vehicle warranty.
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not meet
the original tire specifications, can
cause this light to come on. This
could lead to costly repairs not
covered by the vehicle warranty.
This could also affect the vehicle’s
ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0245.
If the light is f lashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service may
be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades.
If towing a trailer, reduce the amount
of cargo being hauled as soon as
possible. If the light continues to flash, find a
safe place to park. Turn the vehicle off
and wait at least 10 seconds before
restarting the engine. If the light is
still flashing, follow the previous
guidelines and see your dealer for
service as soon as possible.
If the light is on steady :
A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
. If fuel has been added to the
vehicle using the capless funnel
adapter, make sure that it has
been removed. See “Filling the
Tank with a Portable Gas Can ”
under Filling the Tank 0240. The
diagnostic system can detect if the
adapter has been left installed in
the vehicle, allowing fuel to
evaporate into the atmosphere.
A few driving trips with the
adapter removed may turn off the
light.
. Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
INSTRUMENTS AND CONTROLS 129
up. If this occurs, change the fuel
brand. It may require at least one
full tank of the proper fuel to turn
the light off. SeeFuel0240.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument
panel to the left of the steering wheel.
Connecting devices that are not used
to perform an Emissions Inspection/
Maintenance test or to service the
vehicle may affect vehicle operation.
See Add-On Electrical Equipment 0243.
See your dealer if assistance is needed. The vehicle may not pass
inspection if:
.
The light is on when the engine is
running.
. The light does not come on when
the ignition is in Service
Only Mode.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if the
12-volt battery has recently been
replaced or run down, or if the
vehicle has been recently serviced.
See your dealer if the vehicle will not
pass or cannot be made ready for
the test.
Brake System Warning
Light
The vehicle brake system consists of
two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For
normal braking performance, both
circuits need to be working.
If the warning light comes on, there is
a problem with the braking system.
Have the brake system inspected
right away.
This light should come on briefly
when the engine is started. If it does
not come on then, have it fixed so it
will be ready to warn you if there is a
problem.
If the light comes on and stays on,
there is a base brake problem.
{Warning
The brake system might not be
working properly if the brake
system warning light is on. Driving
(Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-MidEast-10293390) - 2017 -
CRC - 6/21/16
134 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.
Auto Stop Mode (Uplevel
Cluster)
This light comes on when the engine
is in an Auto Stop.
SeeStarting the Engine 0196.
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 044.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0164.