Chevrolet 2011 Volt Owner's Manual page 160

To temporarily override a Delayed
Charge Mode from inside the
vehicle:
1. Press the charge port door
release button on the driver
door to view the Charge Mode
Status pop-up in the center
stack display.
2. Press Charge Immediately Upon
Plug In.
The new Temporary Charge
Mode Status screen will
automatically display the
revised charge complete time.
To cancel the temporary override
from the Temporary Charge Mode
Status screen or pop-up, press
Cancel Temporary Charge Mode
on the bottom of the touch screen.
The vehicle will reinstate the
programmed delayed charge
mode settings.
When the Programmable Charging
system is disabled, the Default
Charge Mode Status screen and
the pop-up will display - -:- -
for the Charge Complete Time.