Fog Lamps; Auxiliary Roof Mounted Lamp - GMC 2005 Yukon Owner's Manual

Fog Lamps

If your vehicle has fog lamps, use them for better vision
in foggy or misty conditions.
Your parking lamps and/or low-beam headlamps must
be on for your fog lamps to work.
Press the button to turn the fog lamps on. Press the
button again to turn them off. An indicator light will glow
in the button when the fog lamps are on.
Remember, fog lamps alone will not give off as much
light as your headlamps. Never use your fog lamps
in the dark without turning on your headlamps.
The fog lamps will go off whenever your high-beam
headlamps come on. When the high beams go off, the
fog lamps will come on again.
The fog lamp button is
located on the left side of
the instrument panel.
The fog lamps will be cancelled after the ignition is
turned off. If you still want to use the fog lamps after
you restart the vehicle, you will need to press the
fog lamp button again.

Auxiliary Roof Mounted Lamp

If your vehicle has this feature, this button includes
wiring provisions for a dealer or a qualified service
center to install an auxiliary roof lamp.
When the wiring is connected to an auxiliary roof
mounted lamp, pressing the button will activate the
lamp and illuminate an indicator light near the button.
Pressing the button again will turn off the roof
mounted lamp.
This button is located
on the center of the
instrument panel near
the climate controls.
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