Chevrolet 2013 VOLT Owner's Manual page 197

Charging Status
Indicator
None
Sound
Repeated horn chirps
To disable this feature, see Charge Power
Loss Alert in Vehicle Personalisation on
page 5 50.
To terminate this alert, do one of the
following:
Unplug the charge cord.
Press on the RKE.
Press and hold on the RKE, then
press again to stop the panic alarm.
Press the horn pad.
Driving and Operating
Action/Reason
Electricity was interrupted before charging
was complete.
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