Pontiac 2008 G5 Owner's Manual page 94

R
(ON/RUN): This is the position the switch returns to
after you start your engine and release the switch.
The switch stays in the ON/RUN position when
the engine is running. But even when the ignition is not
running, you can use ON/RUN to operate your
electrical accessories and to display some warning and
indicator lights.
The battery could be drained if you leave the key in the
ACC/ACCESSORY or ON/RUN position with the
engine off. You may not be able to start your vehicle if
the battery is allowed to drain for an extended period
of time.
/
(START): This position starts the engine. When the
engine starts, release the key. The ignition switch
will return to ON/RUN for normal driving.
A warning tone will sound if you open the driver's door
while in LOCK/OFF or ACC/ACCESSORY, when
the key has not been removed from the ignition.
2-22
Key In the Ignition
Never leave your vehicle with the keys inside, as it is an
easy target for joy riders or thieves. If you leave the
key in the ignition and park your vehicle, a chime
will sound, when you open the driver's door. Always
remember to remove your key from the ignition and take
it with you. This will lock your ignition and transmission.
Also, always remember to lock the doors.
The battery could be drained if you leave the key in the
ignition while your vehicle is parked. You may not be
able to start your vehicle after it has been parked for an
extended period of time.