Pontiac Vibe 2003 Owner's Manual page 110

The interior light has the following positions:
OFF: This position turns the light off.
ON: This position keeps the light on all the time.
DOOR: This position turns the light on when any of the
side doors, the liftgate or the liftglass is opened. The
light goes off when all the side doors, the liftgate and the
liftglass are closed.
Illuminated Entry System (If Equipped)
When the interior/instrument panel brightness dial is in
the DOOR position, the light will come on when any
side door, the liftgate or the liftglass is opened. After
any side door, the liftgate or the liftglass is closed, the
light will remain on for about 15 seconds and then go
out except under the following conditions:
D
All of the side doors, the liftgate and the liftglass
are closed when the ignition is in the ACC or ON
positions.
D
The ignition is turned to ACC or ON after all the
side doors, the liftgate and the liftglass are closed.
D
All the side doors and liftgate are locked when the
liftglass is closed and the light is still on.
When any side door is unlocked with the key or remote
keyless entry system transmitter, the light comes on for
15 seconds, even if the door is not opened.
To prevent the battery from draining, the lights will
automatically turn off when the key is removed and the
door is left opened with the dial in the DOOR position
for 20 minutes or more.
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