Chevrolet 2007 Avalanche, Owner'S Manual, Page: 217 / 628

Fog Lamps
If your vehicle has fog lamps you can 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.
The fog lamp button is located on the left side of
your instrument panel.
-
(Fog Lamps): Press the button to turn the fog
lamps on. An indicator light will glow near the
button when the fog lamps are on. Press
the button again to turn them off.
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 the
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 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.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
Exterior Cargo Lamps
You can use the cargo lamp if you need more light
in the cargo area of your vehicle or in the top-box
storage units. Some vehicles will only have a cargo
lamp in the passenger side top box.
The cargo lamps come on by turning on the
interior dome lamps.
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