GMC Hybrid 2007 Owner's Manual page 17

If the system stops supplying 120-volt AC power
unexpectedly and the light next to the APO
button starts flashing, the system has detected an
overload or ground fault condition. To reset the
system see "Resetting the Short Circuit, Overload
or Ground Fault Detection (GDF) Circuit" later
in this section.
The APO system will operate in the continuous
mode with the engine running until one of
the following occurs:
•
You press the APO button. The light in the
APO button will turn off and the engine will
turn off.
•
If the fuel level gets low.
A FUEL LEVEL LOW message will appear in
the DIC and the horn will sound intermittently
for five seconds every minute for five minutes.
If the vehicle is left unattended for the full
five minute warning, the engine and APO
system will shut down, unless the APO button is
pressed during the five minute warning period.
See DIC Warnings and Messages on page 24
for more information on the FUEL LEVEL LOW
message.
•
An overload or ground fault condition is
detected and not reset in five minutes.
•
Vehicle security is violated.
•
Engine oil pressure becomes too low.
•
Engine coolant temperature becomes too hot.
•
The ignition key is moved out of LOCK.
This may display an OIL PRESSURE LOW DIC
warning message and chimes which is a
normal condition when the APO button was not
used to shut off the continuous mode.
•
The Hybrid power system becomes too hot.
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