Chevrolet 2000 Tahoe Owner's Manual page 123

Front Reading Lamps (If Equipped)
Press the button again to turn the lamp off.
Your vehicle may also have reading lamps in other
locations. To turn on or off, press the button located next
to the lamp. The lamps are fixed and cannot be adjusted.
If your vehicle has reading
lamps, press the button
located next to the lamp to
turn them on. The lamps
can be adjusted to point in
the direction you want.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by rotating the
thumbwheel, located next to the parking/headlamps
knob, all the way up. In this position, the dome lamps
will remain on whether a door is opened or closed.
You can use the DOME OVERRIDE button, located
below the parking/headlamp knob, to set the dome
lamps to come on automatically when a door is opened,
or remain off. To turn the lamps off, press the button
into the "in" position. With the button in this position,
the dome lamps will remain off when the doors are
open. To return the lamps to automatic operation, press
the button again and return it to the "out" position.
With the button in this position, the dome lamps will
come on when you open a door.
Battery Run-Down Protection
This feature shuts off the dome, reading, glove box
and underhood lamps if they are left on for more than
20 minutes when the ignition is off. This will keep your
battery from running down.
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