Buick 2002 Century - Manual (Page 111)

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The ignition must be off for delayed entry lighting to
work. Just after all the doors have been closed, the
delayed entry lighting feature will continue to work until
one of the following occurs:
D The ignition is in RUN, or
D the doors are locked, or
D an illumination period of 25 seconds has elapsed.
If during the illumination period a door is opened, the
timed illumination period will be canceled and the
interior lamps will remain on.
Delayed Exit Lighting
This feature illuminates the interior for a period of time
after the ignition key is removed from the ignition.
The ignition must be off for delayed exit lighting to
work. When the ignition key is removed, interior
illumination will activate and remain on until one of the
following occurs:
D The ignition is in RUN, or
D the power door locks are activated, or
D an illumination period of 25 seconds has elapsed.
If during the illumination period a door is opened, the
timed illumination period will be canceled and the
interior lamps will remain on.
Rearview Mirror Reading Lamps
The reading lamps are located on the underside of the
rearview mirror.
Use the button next to each lamp to turn them on
and off.
Dome Lamp (If Equipped)
The dome lamp will come on when you open a door.
Battery Rundown Protection
Your vehicle has a feature to help prevent you
from draining the battery in case you accidentally leave
the interior courtesy lamps, reading/map lamps, visor
vanity lamps, trunk lamp, underhood lamp or glove box
lamps on. If you leave any of these lamps on, they will
automatically turn off after 20 minutes, if the ignition is
in OFF. The lamps won’t come back on again until you
do one of the following:
D Turn the ignition on,
D turn the exterior lamps control off, then on, or
D open a door.
If your vehicle has less than 15 miles (25 km) on
the odometer, the battery saver will turn off the lamps
after only three minutes.