Oldsmobile 2003 Alero Owner's Manual page 121

Interior Lamps
Instrument Panel Brightness
This feature controls the brightness of the instrument
panel lights.
The thumbwheel for this
feature is located on the
instrument panel to the left
of the steering wheel.
Move the thumbwheel up to brighten the lights and
down to dim them.
Entry/Exit Lighting
When you lift the driver's door handle or open any door,
the lamps inside your vehicle will go on. These lamps
will fade out after about 10 seconds after all of the doors
have been closed or when the ignition is turned to
ON. These lamps will also go on when you press the
trunk release, unlock symbol button or the horn symbol
on the remote keyless entry system transmitter
(if equipped).
The lamps inside your vehicle will stay on for about
10 seconds after your key is removed from the ignition
to provide an illuminated exit.
Dome Lamp
The switch on this lamp has three positions. The ON
position will turn on the light. The DOOR position
will turn on the light whenever a door is opened or when
the instrument panel brightness thumbwheel is moved
up. The OFF position will shut off the lamp completely,
even when a door is opened.
Trunk Lamp
The trunk lamp comes on when you open your trunk.
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