GMC 2007 Envoy - Manual (Page 182)

Fog Lamps
Use the fog lamps for better vision in foggy or
misty conditions. The ignition must be in RUN for
the fog lamps to work.
The fog lamp button is
located on the
instrument panel to the
right of the exterior
lamps knob.
Press the button to turn the fog lamps on. Press
the button again to turn them off. A light glows
near the button while the fog lamps are on.
Fog lamps turn off whenever the high-beam
headlamps are on.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
Instrument Panel Brightness
Press the knob located
next to the exterior
lamps knob to extend it.
Turn the knob to adjust the instrument panel
lights. Turn the knob all the way up to turn on the
interior lamps. Press the knob back into its
stored position when you are not using it.
Dome Lamps
The dome lamps will come on when you open a
door unless the dome lamp override is pressed in.
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