Fog Lamps; Auxiliary Roof-Mounted Lamp - GMC 2009 Yukon XL Owner's Manual

Fog Lamps

For vehicles with fog lamps, the control is located next
to the exterior lamps control on the instrument panel,
to the left of the steering column.
The ignition must be in the ON/RUN position for the
fog lamps to come on.
#
(Fog Lamps): Press to turn the fog lamps on or off.
A light will come on in the instrument panel cluster.
When the fog lamps are turned on, the parking lamps
automatically turn on.
When the headlamps are changed to high-beam, the
fog lamps also go off. When the high-beam headlamps
are turned off, the fog lamps will come on again.
Some localities have laws that require the headlamps to
be on along with the fog lamps.

Auxiliary Roof-Mounted Lamp

If the vehicle has this feature, this button includes wiring
provisions for a dealer or a qualified service center to
install an auxiliary roof lamp.
3-18
When the wiring is connected to an auxiliary roof
mounted lamp, pressing the bottom of the button will
activate the lamp and illuminate an indicator light at the
bottom of this button. Pressing the top of the button
will turn off the roof mounted lamp and indicator.
The emergency roof lamp circuit is fused at 30 amps,
so the total current draw of the attached lamps
should be less than this value. The attachment points
for the roof lamp circuits are two blunt cut wires located
above the overhead console, a dark green switched
power wire and a black ground wire.
For further information on roof mount emergency lamp
installation, please visit the GM Upfitter website at
www.gmupfitters.com or contact your dealer.
If the vehicle has this button, the vehicle may have the
snow plow prep package. For further information
see Adding a Snow Plow or Similar Equipment on
page 4-40.
This button is located on
the overhead console.