2018 CADILLAC CT6 O star

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)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
150 INSTRUMENTS AND CONTROLS
Caution (Continued)
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.
Auto Stop Mode (Uplevel
Cluster)
This light comes on when the engine
is in an Auto Stop.
SeeStarting the Engine (PLUG-IN Only)
0 218 orStarting the Engine (Gasoline
Only) 0221.
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 53.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INSTRUMENTS AND CONTROLS 153
.Mount the charging cord to reduce
strain on the electrical outlet/plug.
{Danger
Improper use of portable electric
vehicle charge cords may cause a
fire, electrical shock, or burns, and
may result in damage to property,
serious injury, or death.
. Do not use extension cords,
multi-outlet power strips,
splitters, grounding adaptors,
surge protectors, or similar
devices.
. Do not use an electrical outlet
that is worn or damaged,
or will not hold the plug
firmly in place.
. Do not use an electrical outlet
that is not properly grounded.
. Do not use an electrical outlet
that is on a circuit with other
electrical loads.
See the charge cord user guide.
Programmable Charge Modes
This vehicle has three programmable
charge modes. To view the current
charge mode status in the
infotainment display, touch
[in
the infotainment display and then
touch CHARGING at the bottom of
the display.
The Charge Start and Charge
Complete time estimates are also
displayed on the screen. These
estimates are most accurate when the
vehicle is plugged in and in moderate
temperature conditions. Also, to get
an accurate time estimate, the vehicle
uses an internal clock for
programmable charging, not the clock
in the infotainment display.
Charge Mode Status
Immediately : The vehicle starts
charging as soon as it is connected to
an electrical outlet. See Plug-In
Charging (PLUG-IN Only) 0274.
Delay Charge Based on Departure
Time : The vehicle estimates the
charging start time considering the
programmed departure time for the
current day of the week. Charging
begins at the start time and is
complete by the departure time only if
sufficient time is allowed after the
charge cord is plugged in.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
154 INSTRUMENTS AND CONTROLS
Delay (Electric Rate and Departure
Time) :The vehicle estimates the
charging start time based on the
utility rate schedule, utility rate
preference, and the programmed
departure time for the current day of
the week. The vehicle will charge
during the least expensive rate periods
to achieve a full battery charge by the
departure time. Electrical rate
information from the utility company
for the charging location is required
for this mode.
Also, if the selected electric rate
settings result in a very long charge
completion time, the vehicle will start
charging immediately upon plug-in.
For example, if the electric rate table
is set up with all “Peak”rates and the
rate preference is to charge during “Off-Peak”
rates only, then the vehicle
will start charging immediately upon
plug-in.
Charge Limit Selection
The Charge Limit Preference setting
allows the customer to select their
vehicle’s charge level so it matches the
capability of their charging location.
If the vehicle consistently stops
charging after plugging in, or if a
circuit breaker continues to trip,
reducing to a lower Charge Limit
Preference may resolve the issue.
The Charge Limit Preference should be
configured to match the electrical
current rating for the electrical outlet
that the charge cord is connected to.
The Charge Limit Preference
settings are: .
Maximum: Limits AC current to
12 amps
. Reduced: Limits AC current to
8 amps
Exact current levels may vary from
the values shown in this manual.
Check the vehicle for the current
available levels.
The Charge Limit Preference setting
can be changed at any time while the
infotainment display is operable.
For some vehicles, the Charge Limit
Preference must be updated prior to
the vehicle being charged and the
Charge Limit Preference will reset to a
default value when the vehicle is
shifted from P (Park).
{Warning
Using a charge level that exceeds
the electrical circuit or electrical
outlet capacity may start a fire or
damage the electrical circuit. Use
the lowest charge level until a
qualified electrician inspects the
electrical circuit capacity. Use the (Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
156 INSTRUMENTS AND CONTROLS
is a planned departure prior to the
scheduled departure time. Use the
Latest setting to optimize energy
usage.
Charge Rate Preference Selection
From the Charge Rate Information
screen, touch Charge Rate Preference.
Touch one of the following options to
select the Charge Rate Preference:
.Charge during Peak, Mid-Peak, and
Off-Peak Rates: The vehicle can
charge during any rate period to
satisfy the next planned departure
time. However, it will select when
to charge to minimize the total
cost of the charge.
. Charge during Mid-Peak and
Off-Peak Rates: The vehicle will
charge during Off-Peak and/or Mid-Peak rate periods only and
will select when to charge to
minimize the total cost of the
charge.
. Charge during Off-Peak Rates: The
vehicle will only charge during
Off-Peak rate periods.
Charging begins at the start time and
is complete by the departure time
only if sufficient time is allowed after
the charge cord is plugged in. For
example, if the vehicle is plugged in
for only one hour prior to the
departure time, and the battery is
completely discharged, the vehicle will
not be fully charged by the departure
time regardless of the rate selection.
Also, if the selected electric rate
settings result in a very long charge
completion time, the vehicle will start
charging immediately upon plug-in.
For example, if the electric rate table
is set up with all Peak rates and the
rate preference is to charge during
Off-Peak rates only, then the vehicle
will start charging immediately upon
plug-in. Electric Rate Plan Selection
Electric rates, or cost per unit, may
vary based on time, weekday/weekend,
and season. During the day when the
demand for electricity is high, the
rates are usually higher and called
Peak rates. At night when the demand
for electricity is low, the rates are
usually lower and called Off-Peak
rates. In some areas, a Mid-Peak rate
is offered.
Contact the utility company to obtain
the rate schedule for your area. The
summer and winter start dates must
be established to use a summer/winter
schedule.
From the Charge Rate Information
screen, touch Electric Rate Schedule.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
INSTRUMENTS AND CONTROLS 157
To edit the Summer/Winter Schedule:1. Select Summer/Winter for the Rate Schedule Type.
2. Touch Edit Electric Rate Schedule.
To edit the Yearly Schedule:
1. Select Yearly for the Rate Schedule Type.
2. Touch Edit Electric Rate Schedule.
Summer/Winter Schedule Start Date
Entering
From the Edit Electric Rate Schedule
screen, touch Edit Summer/Winter
Start Dates.
1. Touch Summer.
2. Touch + or −to set the month
and day for the start of summer.
3. Touch Winter.
4. Touch + or −to set the month
and day for the start of winter.
5. Touch Edit Summer Schedule or Edit Winter Schedule to edit the
daily electric rate schedule.
Electric Rate Schedule Editing
From the Edit Electric Rate Schedule
screen, select Weekday Schedule or
Weekend Schedule. 1. Touch Weekday or Weekend.2. Select the row to be changed. .Weekdays are Monday
through Friday and use the
same rate schedule.
. Weekends are Saturday and
Sunday and use the same
rate schedule.
Both weekday and weekend schedules
must be set. The rate schedule only
applies for a 24-hour period, starting
at 12:00 AM and ending at 12:00 AM.
There can be five rate changes for
each day; not all must be used.
The finish times must be consecutive.
If a finish time does not follow a start
time, the error message displays “An
invalid entry was found in the data
entered. Please re-enter data.”

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
158 INSTRUMENTS AND CONTROLS
Electric Rate Finish Time Editing
It is recommended to have the vehicle
unplugged while editing electric rate
finish time. From the Edit (Summer,
Winter, or Yearly) Electric Rate
Schedule screen, touch Edit next to
the row to change.
1. Touch + or−to adjust the time.
2. Touch Off-Peak, Mid-Peak, or Peak to select the electric rate.
3. Touch
0 jto store changes.
Only the finish time can be edited.
The start time is automatically
populated in the rate table.
Electric Rate Schedule Viewing
From the Select Electric Rate Plan
screen, touch View (Summer, Winter,
or Yearly) Schedule.
Temporary Charge Mode
Override and Cancel
Programmed Delayed Charge Modes
can be temporarily overridden to an
Immediate Charge Mode for one
charge cycle. Also, the next planned
departure time can be temporarily
overridden for one charge cycle. In
addition to the in-vehicle overrides via
the infotainment display, there are
other ways to temporarily override a
Delayed Charge Mode. See Plug-In
Charging (PLUG-IN Only) 0274.
Temporary Override of a Delayed
Charge Mode
To temporarily override a Delayed
Charge Mode to Immediate Charge
Mode from inside the vehicle: 1. Touch Temporary Override Options on the main charging
screen.
2. Touch Charge Immediately UponPlug In to temporarily override
to an Immediate Charge Mode.
The Temporary Charge Mode Status
screen will automatically display the
revised charge complete time.
To cancel the temporary override,
touch Cancel Temporary Override
Setting on the Temporary Override
Options screen. Or, from the main

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
164 INSTRUMENTS AND CONTROLS
Economy can be reset by pressing and
holding SEL while this display is
active.
Coolant Temperature (PLUG-IN) :
Displays the coolant temperature in
either degrees Celsius (°C) or degrees
Fahrenheit (°F).
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.
EV Operation Gauge (PLUG-IN) :
This display shows the driver how
close the vehicle is to exiting
electric mode.
Total Power Gauge (PLUG-IN) : This
display shows the vehicle’s power
consumption from both the battery
and the engine. When the vehicle is
consuming power from the battery
and/or engine the bars are filled
yellow. When regenerating, green
filling is displayed. For invalid data, no
filled bars are shown. 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.
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
yorzto 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.
Follow Distance : If equipped, the
current follow time to the vehicle
ahead is displayed as a time value on
this page.
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.