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Driving and operating199
Touch one of the following options to
select the Electric rate preference :
● Off: Delayed charging based on
departure.
● Off-peak only : Charge during off-
peak rates.
● Cost optimised off-peak & mid-
peak : Charge during mid-peak
and off-peak rates.
● Cost optimised all rates : Charge
during peak, mid-peak, and off-
peak rates.
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 high voltage
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 uponplug-in.
Electric rate schedule
From the Charging mode screen with
Departure charge mode selected,
touch Edit in the Electric rate
preference .
Select one of the following for the
Charge completion option:
● Earliest possible
● Latest possible
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.
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200Driving and operating
Touch Edit electric rate schedule from
the Electric rate Schedule screen and
select the desired schedule.
● Yearly
● Summer / Winter
Summer / Winter schedule start date
entering
With Summer / Winter as the
preferred rate schedule, touch Edit on
the Summer tab next to the dates.
1. Touch + or − to change the month
and day for the start of Summer.
2. Select the Winter tab.3.Touch + or − to change the month
and day for the start of Winter.
4. Touch q to exit the screen.Electric rate schedule editing
Electric rate information from the
utility company for the charging
location is required.
1. Touch Edit electric rate schedule
from the Electric rate Schedule
screen and select the desired
schedule.
2. Touch Edit in the lower right
corner of the screen to edit the
electric rate schedule.
Both weekday and weekend
schedules must be set. The rate
schedule only applies for a
24-hour period, starting at 12 AM
and ending at 12 AM. There can
be five rate changes for each day; not all must be used.
3. Touch Set next to the row to be
edited.
4. Select Peak, Mid-peak , or Off-
peak . Use + or - to enter the time,
and o or n to change AM or
PM.
The finish times must be
consecutive. If a finish time does not follow a start time, an error
message displays.
5. Touch OK.
Page 203 of 267

Driving and operating201Priority charging
The priority charging feature will work
when the Departure charge mode is
selected. This feature is designed to
ensure that the high voltage battery
pack has a minimal amount of energy
prior to delaying a charge. Upon
completion of priority charging the
vehicle will return to normal
programmable charging operation.
The feature can be enabled or
disabled by selecting On or Off from
the Charge mode screen when the
Departure charge mode is selected.
When enabled, priority charging will
only prevent programmable charging
while the high voltage battery is
recharged from a depleted state to a
level allowing 40% of the driving
range.
Temporary charge mode override
and cancel
To temporarily override a delayed
charge event, unplug the charge cord
from the charge port and then plug it
back in within five seconds. A single
audible chirp will sound and charging will begin immediately.To cancel a temporary override,
unplug the charge cord, wait for
ten seconds, and then plug the
charge cord back in. A double audible
chirp will sound and charging will be
delayed.
Temporary override of a delayed
charge mode
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 programmable charging screens,
there are other ways to temporarily
override a delayed charge mode.
Programmed charging override
3 203.
The Temporary override provides the
ability to set temporary charge items
for the next charge cycle.
Touch the Temporary override tab on
the Charging screen.
Select:
● Immediate : Charge immediately
at plug in.
● Temporary Departure : Set the
temporary departure time.
● Off: Cancel temporary charge
mode.
To override or cancel an active
charging cycle, touch Stop on the
Charging screen.
Location based charging With Location-based charging
enabled, the Charge mode and
Charge limit preference are saved
and set back to the customer’s
Page 204 of 267

202Driving and operatingpreference every time the vehicle is
returned to the saved Home location.
When the vehicle is not at the saved
Home location, then the vehicle will
default to the lower limit of Charge
limit preference and the Charge
mode will be set to Immediate.
When Location-based charging is
On and the vehicle is away from the
saved Home location, then the
selection for the charge mode will be
disabled and the selection will be
greyed out.
After 90 days, a notification will
display and the Charge limit
preference will need to be reset for
the next 90 days. Important
information about portable electric
vehicle charging 3 204.
When the GPS location is not
available, dashes will be displayed
and location based charging will be
disabled until the GPS is restored.
To use location based charging, a
Home location must first be stored.To store a Home location:
1. From the Energy home screen,
touch Energy settings .
2. Touch Location-based charging .
3. Touch Set home location v .
4. Touch OK.
5. Touch On to enable Location-
based charging .
To change the stored Home location:
1. Touch Update Home Location v
on the Location-based charging
screen.
2. Touch Update, then OK to set the
new home location.
● Touch Cancel to make no
changes.
● Touch Remove to clear the
location and turn location
based charging off.Charging interrupted or
overridden pop-up
The Charging override / interruption
occurred pop-up will appear if any of
the following conditions occur:
● The charging settings have been
modified via OnStar through the
website or the mobile app. For
example, the departure time
tables, the rate tables, or the
charge mode were updated using
the customer website (available
in select regions).
● There was an unintended loss of AC power during the plug-in
charge event. For example, there was a power outage or the
charge cord was unplugged from the wall.
Page 205 of 267

Driving and operating203Programmable charging disabled
When the programmable charging
system is disabled, the Unable to
charge screen will be displayed.
Programmed charging override
To temporarily override a delayed charge event, unplug the charge cord from the charge port and then plug it
back in within five seconds. A single
horn chirp will sound and charging will begin immediately.
To cancel a temporary override,
unplug the charge cord, wait for
ten seconds, and then plug the
charge cord back in. A double horn
chirp will sound and charging will be delayed.
Programmable charging 3 196.
Charging status
The vehicle has a charging status
indicator at the centre of the
instrument panel near the
windscreen. When the vehicle is
plugged in and the vehicle power is
off, the charging status indicator
indicates the following:
● Short flashing green – One horn chirp: Vehicle is plugged in. High
voltage battery is not fully
charged. High voltage battery is
charging. Flash rate increases
from one to four flashes as the
high voltage battery charges.
● Short flashing green – Two audible beeps: Vehicle is
charging but will delay by
programmable charging at least
once before the charge is
complete. Flash rate increases
from one to four flashes as the high voltage battery charges.
● Short flashing green – Four audible beeps: Insufficient time to
fully charge by departure time due to the selected rate
preference. To increase the high
voltage battery state of charge at
the departure time perform a
delayed charging override.
Programmable charging 3 196.
● Long flashing green – Two horn chirps: Charging is delayed by
programmable charging.
Charging will begin later.
Page 206 of 267

204Driving and operating● Solid green – No horn chirps:Charging is complete.
● Solid yellow – No horn chirp: Vehicle is plugged in. It is normal
for the charging status indicator
to turn yellow for a few seconds
after plugging in a compatible
charge cord. The solid yellow
may remain illuminated
depending on the vehicle.
This may also indicate that the
charging system has detected a
fault and will not charge the high
voltage battery.
● No light signal (upon plug‐in) – No horn chirps: Charge cord
connection should be checked.
● No light signal (after indication of
green or yellow charging status
indicator) – No horn chirps:
Charge cord connection should
be checked. If connection is
correct, this may be due to a
power failure and charging will
begin later. This may also occur
if the vehicle has detected a high
voltage charging system fault.● No light signal – Three horn chirps: Charge port door is open.
● No light signal – Horn chirps repeatedly: The power supply
was interrupted before the
charging process could be
completed. Repeated chirps will stop if power is restored within
90 seconds.
Vehicle personalisation 3 91.
The system may be thermally
conditioning the high voltage battery
during any of the states mentioned
above, requiring electric energy to be
transferred to the vehicle.
If the vehicle is plugged in and vehicle
power is on, the charging status
indicator will flash or illuminate solid
green, depending on the charge level. This also happens during Engine
Assisted Heating if the vehicle is
plugged in.
If the vehicle is plugged in and the
charging status indicator is off, a
charging fault has been detected.Charge cord9 Danger
There is a risk of electric shock
that may cause personal injury or
death.
Do not use the charge cord if any part of the charge cord is
damaged.
Do not open or remove the charge cord cover.
Service by qualified personnel
only. Connect the charge cord to a
properly grounded outlet with
cords that are not damaged.
A portable charge cord used to
charge the vehicle high voltage
battery is stored under the rear floor
storage cover in the load
compartment 3 193.
Page 207 of 267

Driving and operating205Important information about
portable electric vehicle charging
● Charging an electric vehicle can stress a building's electrical
system more than a typical
household appliance.
● Before you plug in to any electrical outlet, have a qualified
electrician inspect and verify the
electrical system (electrical
outlet, wiring, junctions and
protection devices) for heavy-
duty service at a 10 A continuous load.
● Electrical outlets may wear out with normal usage or be
damaged over time, making them
unsuitable for electric vehicle
charging.
● Check the electrical outlet / plug while charging and discontinue
use if the electrical outlet / plug is hot, then have the electrical
outlet serviced by a qualified
electrician.● When outdoors, plug into an electrical outlet that is weather-
proof while in use.
● Mount the charging cord to reduce strain on the electrical
outlet / plug.9 Warning
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 socket that is worn or damaged, or onethat will not hold the plug firmly
in place.
● Do not use an electrical socket that is not properly grounded.
● Do not use an electrical socket that is on a circuit with other
electrical loads.
9 Warning
Read all the safety warnings and
instructions before using this
product. Failure to follow the
warnings and the instructions may result in electric shock, fire, and /
or serious injury.
Never leave children unattended
near the vehicle while the vehicle is charging and never allow
children to play with the charge
cord.
If the plug provided does not fit the electrical outlet, do not modify the
plug. Arrange for a qualified
electrician to inspect the electrical
outlet.
Do not put fingers into the electric
vehicle connector.
9 Warning
To reduce the risk of fire,
installations shall comply with the
requirements of National Electric
Code IEC 60364 – Electrical
Page 208 of 267

206Driving and operatinginstallations in buildings,
depending on the region in which
the unit is being installed. The
installer shall comply with any
additional local requirements
mandated by the country and / or
municipality.
Do not use this product if the
flexible power cord or the electric
vehicle cable is frayed, has broken insulation, or shows any other
signs of damage.
Do not use this product if the
enclosure or the vehicle plug is
broken, cracked, open, or shows
any other indication of damage.
The plug must be plugged into an
appropriate electrical outlet that is
properly installed in accordance
with all local codes and
ordinances. Do not modify the
plug provided with the product. If
the plug does not fit the electrical
outlet, have a proper electrical
outlet installed by a qualified
electrician. If ground is missing,the charge cord indicators will
indicate an electrical system fault
and the vehicle may not charge.
1. Vehicle plug
2. Protective cover
3. Status indicators
4. Wall plug
Charge cord status indicators After plugging in the charge cord, it
will perform a quick self test.
Verify the charge cord status.
● c illuminates green and d is off,
the charge cord is ready to
charge the vehicle.
● c flashing green and d is off:
Electrical outlet / plug fault: The
charge cord has detected that the electrical outlet / plug
overheated. Use another
electrical outlet or have the
electrical outlet serviced by a
qualified electrician. Reset the
charge cord by unplugging the
charge cord from the electrical
outlet and re-plugging it.
● c is off and d flashes red:
Vehicle fault: The charge cord
ground-fault circuit interrupter
has tripped. Ensure that there is no physical damage to the
charge cord and that the vehicle
plug is seated completely and making a good connection. Reset the charge cord by unplugging