2018 CADILLAC CT6 charging battery

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
206 DRIVING AND OPERATING
Lane DepartureWarning (LDW) . . . . . . . . . . . . . . . . . 270
Lane Keep Assist (LKA) . . . . . . . . . . 271
Surround Vision Recorder . . . . . . . 272
Charging
Plug-In Charging (PLUG-IN Only) . . . . . . . . . . . . . . . . . 274
Delayed Charging Override (PLUG-IN Only) . . . . . . . . . . . . . . . . . 275
Charging Status Feedback (PLUG-IN Only) . . . . . . . . . . . . . . . . . 275
Charge Cord (PLUG-IN Only) . . . . 279
Utility Interruption of Charging (PLUG-IN Only) . . . . . . . . . . . . . . . . . 284
Electrical Requirements for Battery Charging
(PLUG-IN Only) . . . . . . . . . . . . . . . . . 285
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
California Fuel Requirements . . . . 287
Fuels in Foreign Countries . . . . . . . 287
Fuel Additives . . . . . . . . . . . . . . . . . . . . 287
Filling the Tank . . . . . . . . . . . . . . . . . . 288
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 290
Trailer Towing
General Towing Information . . . . 290
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 290 Trailer Towing
(PLUG-IN Only) . . . . . . . . . . . . . . . . . 293
Trailer Towing (Gasoline Only) . . . . . . . . . . . . . . . . . 293
Towing Equipment . . . . . . . . . . . . . . . 294
Conversions and Add-Ons
Add-On Electrical Equipment . . . 295
Driving Information
Distracted Driving
Distraction comes in many forms and
can take your focus from the task of
driving. Exercise good judgment and
do not let other activities divert your
attention away from the road. Many
local governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep your
eyes on the road, keep your hands on
the steering wheel, and focus your
attention on driving.
. Do not use a phone in demanding
driving situations. Use a
hands-free method to place or
receive necessary phone calls.
. Watch the road. Do not read, take
notes, or look up information on
phones or other electronic devices.
. Designate a front seat passenger
to handle potential distractions.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
220 DRIVING AND OPERATING
the vehicle is ready to be driven. This
could take up to 15 seconds at
extremely cold temperatures. See
Vehicle Ready Light (PLUG-IN Only)
0151.
PLUG-IN Operation
This vehicle combines gasoline and
electric propulsion. The gasoline
engine will automatically start to
provide power and then shut off to
save fuel.
The engine may remain
running when:
.
Accelerating aggressively or
climbing hills.
. Vehicle speed is greater than
125 km/h (75 mph).
. Charging the high voltage battery.
. The heater is being used.
The engine and transmission work
together to provide propulsion power
at the highest efficiency. This may
result in higher engine speeds.
Stop/Start System
{Warning
Exiting the vehicle without first
shifting into P (Park) may cause the
vehicle to move. You or others may
be injured. Because the vehicle may
have an auto engine stop/start
feature, the vehicle's engine might
seem to be shut off; however, once
the brake pedal is released, the
engine will start up again.
Shift to P (Park) and turn the
ignition off before exiting the
vehicle.
The vehicle has a fuel saving stop/
start system to shut off the engine
and help conserve fuel.
Auto Engine Stop/Start
When the brakes are applied and the
vehicle is at a complete stop, the
engine may turn off. When stopped,
the tachometer may display Auto
Stop, or the Auto Stop light may come
on in the instrument cluster.
See Tachometer 0134 and Auto Stop Mode (Uplevel Cluster)
0150. When the
brake pedal is released or the
accelerator pedal is pressed, the
engine may restart.
Auto Stop may be deactivated if:
. A minimum vehicle speed is not
reached.
. The engine or transmission is not
at the required operating
temperature.
. The outside temperature is not in
the required operating range,
typically between -10 °C (14 °F)
and 50 °C (122 °F).
. The shift lever is in any gear other
than D (Drive).
. The battery has been recently
disconnected.
. The battery charge is low.
. The interior comfort level has not
reached the required level for the
climate control system or defog
settings.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 225
Warning (Continued)
on fairly level ground, always set
the parking brake and move the
shift lever to P (Park). SeeShifting
Into Park 0224. If you are towing a
trailer, see Driving Characteristics
and Towing Tips 0290.
If you have to leave the vehicle with
the engine running, the vehicle must
be in P (Park) and the parking brake
set. After shifting into P (Park), try to
move the shift lever out without first
pushing the button on the shift lever.
If you can, the shift lever was not
fully locked into P (Park).
Torque Lock
Torque lock is when the weight of the
vehicle puts too much force on the
parking pawl in the transmission. This
happens when parking on a hill and
shifting the transmission into P (Park)
is not done properly and then it is
difficult to shift out of P (Park). To
prevent torque lock, set the parking brake and then shift into P (Park). To
find out how, see "Shifting Into Park"
listed previously.
If torque lock does occur, the vehicle
may need to be pushed uphill by
another vehicle to relieve the parking
pawl pressure, so you can shift out of
P (Park).
Shifting out of Park
This vehicle is equipped with an
electronic shift lock release system.
The shift lock release is designed to
prevent movement of the shift lever
out of P (Park), unless the ignition is
on and the brake pedal is applied.
The shift lock release is always
functional except in the case of an
uncharged or low voltage (less than
9 volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See
Jump Starting - North
America 0374.
To shift out of P (Park): 1. Apply the brake pedal. 2. Release the parking brake. See
Electric Parking Brake 0235.
3. Press the shift lever button.
4. Move the shift lever.
If unable to shift out of P (Park): 1. Fully release the shift lever button.
2. While holding down the brake pedal, press the shift lever
button again.
3. Move the shift lever.
If the shift lever will not move from
P (Park), consult your dealer or a
professional towing service.
Parking over Things
That Burn
{Warning
Things that can burn could touch
hot exhaust parts under the vehicle
and ignite. Do not park over papers,
leaves, dry grass, or other things
that can burn.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
274 DRIVING AND OPERATING
Charging
Plug-In Charging
(PLUG-IN Only)
This section explains the charging of
the vehicle's high voltage battery. Do
not allow the vehicle to remain in
extreme temperatures for long periods
without being driven or plugged in.
Plug the vehicle in when temperatures
are below 0 °C (32 °F) and above 32 °C
(90 °F) to maximize the life of the high
voltage battery.
When using the portable charge cord
included with the vehicle, it will take
approximately 12.5 hours to charge
the vehicle with the 12 amp AC
current setting or 20 hours using the
default 8 amp AC current setting.
When using a charging station
capable of 16 amps or more, it will
take approximately 4.5 hours to
charge the vehicle. Charge times will
vary with outside temperature. There
are three ways to program how the
vehicle is charged. SeeProgrammable
Charging (PLUG-IN Only) 0152. The charging system may run fans
and pumps that result in sounds from
the vehicle while it is turned off.
Additional unexpected clicking sounds
may be caused by the electrical
devices used while charging.
While the charge cord is plugged into
the vehicle, the vehicle cannot be
driven.
Charging
Start Charge
1. Make sure the vehicle is parked and turned off.
2. Push the rearward edge of the charge port door in and release
to open the door.
In cold weather conditions, ice
may form around the charge port
door. Remove ice from the area
before attempting to open or
close the charge port door.3. Open the trunk. Lift the loadfloor cover and remove the
charge cord.
4. Plug the charge cord into the electrical outlet. See Electrical
Requirements for Battery Charging
(PLUG-IN Only) 0285. Verify the
charge cord status. See Charge
Cord (PLUG-IN Only) 0279.
Select the appropriate charge
level using the Charge Limit
Preference screen on the
infotainment display. See “Charge
Limit Selection ”under
Programmable Charging (PLUG-IN
Only) 0152.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
276 DRIVING AND OPERATING
The vehicle has a Charging Status
Indicator (CSI) at the center of the
instrument panel near the windshield.
When the vehicle is plugged in and
the vehicle power is off, the CSI
indicates the following:
.Short Flashing Green –Vehicle is
plugged in. Battery is not fully
charged. Flash rate increases from
one to four flashes as battery
charges.
. Long Flashing Green –Vehicle is
plugged in. Battery is not fully
charged. Battery charging is
delayed.
. Solid Green –Vehicle is plugged
in. Battery is fully charged.
. Solid Yellow –Vehicle is plugged
in. It is normal for the CSI to turn
yellow for a few seconds after
plugging in a compatible charge
cord. The solid yellow may be
extended depending on the vehicle
and if there is a total utility
interruption via OnStar. See Utility
Interruption of Charging (PLUG-IN
Only) 0284. This may also indicate
that the charging system has
detected a fault and will not charge the battery. See
“Charge
Cord Status Indicators ”in Charge
Cord (PLUG-IN Only) 0279.
If the vehicle is plugged in and vehicle
power is on, the CSI will flash or will
be solid green, depending on the
charge level. This also happens during
a remote start if the vehicle is
plugged in.
If the vehicle is plugged in and the
CSI is off, a total utility interruption
using OnStar or a charging fault has
been detected. See Utility Interruption
of Charging (PLUG-IN Only) 0284 or
“Charge Cord Status Indicators ”in
Charge Cord (PLUG-IN Only) 0279.
A message displays if the vehicle is
not able to charge.
Following is the vehicle feedback
when the charge cord is plugged in.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 279
Charging StatusIndicator Sound Action/Reason
None Repeated audible beeps To disable this feature, see “Charge Power Loss
Alert ”in Vehicle Personalization 0170.
To stop this alert, do one of the following:
. Unplug the charge cord.
. Press
Kon the RKE transmitter.
. Press and hold
7on the RKE transmitter,
then press again to stop the panic alarm.
. Press the horn pad. Electricity has been interrupted before
charging was complete. Repeated beeps will
stop if power is restored within 90 seconds.
None Three audible beeps Charge port door is open.
Charge Cord
(PLUG-IN Only)
IMPORTANT SAFETY
INSTRUCTIONS
This symbol means Warning: Risk of
electrical shock.
SeeRadio Frequency Statement 0417.
A portable charge cord used to charge
the vehicle high voltage battery is
stored in the left storage compartment
in the rear cargo area.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
DRIVING AND OPERATING 285
When electrical grid power is
completely blocked, the vehicle will
delay charging until the utility
interruption has expired. The vehicle
should be left plugged in so that the
vehicle can automatically begin
charging.
Changing the charge mode to
Immediate or performing a delayed
charging override will not disable a
utility interruption.
A pop-up will appear in the
infotainment display during the key
cycle following any utility
interruption. See“Charging
Interrupted or Overridden Pop-Up ”
under Programmable Charging
(PLUG-IN Only) 0152.
A message will display on the
instrument cluster indicating that a
utility interruption has occurred.
See Instrument Cluster (Base Level)
0 127 orInstrument Cluster (Uplevel)
0 130.Charging Station
Troubleshooting
If the vehicle does not charge after
being plugged in to a residential
240-volt charging station:
1. Verify that the charge mode is set to Immediate.
2. Verify that the charging station’s circuit breaker has not been
tripped.
3. Plug the portable charge cord into the wall outlet, verify that
the indicator light on the charge
cord is solid green, and connect
it to the vehicle. See “Charge
Cord Status Indicators ”in Charge
Cord (PLUG-IN Only) 0279.
4. If the vehicle charges with the portable charge cord, there may
be a problem with the charging
station. Try to charge the vehicle
with a different 240-volt charging
station, such as a public station.
If both attempts charge the
vehicle, contact the charging
station manufacturer.
Electrical Requirements for
Battery Charging
(PLUG-IN Only)
This vehicle is capable of being
charged with most standard vehicle
charging equipment complying with
one or more of the following:
.SAE J1772
. SAE J2847-2
. IEC 61851-1
. IEC 61851-22
. IEC 61851-23
. IEC 61851-24
. IEC 62196-1
. IEC 62196-2
. IEC 62196-3
. ISO 15118
. GB/T 18487.1
. GB/T 20234.1
. GB/T 20234.2

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-11292458) -
2018 - crc - 2/14/17
286 DRIVING AND OPERATING
The following are the minimum
requirements for circuits used to
charge this vehicle:
.120 volts/15 amps
. 240 volts/20 amps
Charging equipment with a rating of
at least 240 volts/20 amps will provide
the fastest charging time and best
charging efficiency to recharge the
high voltage battery. 240 volt/40 amp
circuits provide flexibility for future
vehicle charging needs. Always follow
the charging equipment installation
instructions. Contact your dealer for
more information.
Caution
Do not use portable or stationary
backup generating equipment to
charge the vehicle. This may cause
damage to the vehicle's charging
system. Only charge the vehicle
from utility supplied power.
Fuel
GM recommends the use of TOP
TIER®detergent gasoline to keep the
engine cleaner and reduce engine
deposits. See www.toptiergas.com for a
list of TOP TIER detergent gasoline
marketers and applicable countries.
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
For the 2.0L L4 turbo engine,
premium unleaded gasoline meeting
ASTM specification D4814 with a
posted octane rating of 93 is highly
recommended for best performance and fuel economy. Unleaded gasoline
with an octane rated as low as 87 can
be used. Using unleaded gasoline
rated below 93 octane, however, will
lead to reduced acceleration and fuel
economy. If knocking occurs, use a
gasoline rated at 93 octane as soon as
possible, otherwise, the engine could
be damaged. If heavy knocking is
heard when using gasoline with a
93 octane rating, the engine needs
service.
For the 3.6L V6 engine, use regular
unleaded gasoline meeting ASTM
specification D4814 with a posted
octane rating of 87 or higher. Do not
use gasoline with a posted octane
rating of less than 87, as this may
cause engine knock and will lower fuel
economy.
For the 3.0L twin turbo V6 engine, use
premium unleaded gasoline meeting
ASTM specification D4814 with a
posted octane rating of 93.
If unavailable, unleaded gasoline with
a posted octane rating of 91 may be
used, but with reduced performance
and fuel economy. If the octane is less
than 91, the engine could be damaged
and the repairs would not be covered