Utility Interruption Of Charging - GMC HUMMER EV 2023 Owner's Manual

Warning (Continued)
charge cord indicators will indicate an
electrical system fault and the vehicle
may not charge.
Charge Cord Status Indicator
After plugging in the charge cord, it will
perform a quick self test.
Verify the charge cord status. The charge
cord uses a combination of red, blue, and
yellow indicators to display the status of the
charge cord.
If the status indicator is not lit, ensure the
electrical outlet has power.
Charge Level Selection
Charge level selection can be made using
the Charging tab in the Energy Application
on the infotainment display. For instructions
to set cord limit settings for a charge
session, see Charging 0 109.
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
lowest charge level if the electrical circuit
or electrical outlet capacity is not known.
Grounding Instructions
The charge circuit must be grounded. If the
charge circuit should malfunction or break
down, grounding provides a path of least
resistance for the electric current to reduce
the risk of electric shock. This product is
equipped with a cord that has an equipment
grounding conductor and a grounding plug.
The plug must be plugged into an
appropriate outlet that is properly installed
and grounded in accordance with all local
codes and ordinances.
Driving and Operating
Warning
Improper connection of the charge cord
ground may cause electrical shock. Check
with a qualified electrician if there is
doubt as to whether the charge circuit is
properly grounded. Do not modify the
plug provided with the product. If it will
not fit the electrical outlet, have a proper
electrical outlet installed by a qualified
electrician.

Utility Interruption of Charging

This vehicle responds to requests through
the utility company to limit or completely
block electrical power grid use. This feature
is inactive during DC charging. A utility
interruption will lengthen the vehicle
charge time.
When electrical grid power is completely
blocked, the vehicle will not charge until the
utility interruption has expired. The vehicle
should be left plugged in so that the vehicle
will automatically resume charging.
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