GMC HUMMER EV 2023 Owner's Manual page 259

258 Driving and Operating
Charge Port Light Color
Solid Blue
Pulsing Blue
Blinking Green (the longer
the blink, the higher the
state of charge)
Solid Green
Blinking Red
None (upon plug-in)
None (after blue and green
lights up)
Headlight Charge Status
Indicator
Single light bar flashing
Solid light bars represent the
available state of charge. The
remaining light bars build in
a swipe pattern towards the
center of the vehicle.
All light bars are solid
Off
None
None
Sound
Two audible chirps
One audible chirps
None
None
None
None
Action/Reason
Initial connection is successful.
Charging is delayed by charging screen or by a
total utility interruption. Charging will begin
later. See Utility Interruption of Charging 0 261.
Utility Override ( Demand Response ).
Vehicle is actively charging.
Charging is complete.
Error
Check the charge cord connection. There may be
no power supplied to the vehicle.
Check the charge cord connection.
Check the charge cord connection. If the
connection is good, this may indicate a power
failure or a total utility interruption, and charging
will begin later. It may also occur if a high
voltage charging system fault is detected. See
Utility Interruption of Charging 0 261 or
Service Vehicle Soon Light (Propulsion System
Failure) 0 102.