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Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear Window Defogger): The rear window
defogger will turn off automatically after it has
been activated for 10 minutes. It can be turned off
manually, by pressing the button again or by
turning the ignition to the OFF position. If additional
window clearing is required, the rear window
defogger can be turned on again for additional
window clearing. The length of defogger operation
will increase if the vehicle is being driven.
If your vehicle has heated outside rearview mirrors,
the mirrors will heat to help clear fog or frost
from the surface of the mirror when the rear
window defog button is pressed. See Outside
Power Mirrors on page 127.
Do not drive the vehicle until all the windows
are clear.
Notice: Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, and the repairs
would not be covered by your warranty. Do not
attach a temporary vehicle license, tape, a decal
or anything similar to the defogger grid.
Outlet Adjustment
Use the thumbwheel located below or to the side of
the outlet, to change the direction of the air flow.
Operation Tips
• Clear away any ice, snow or leaves from the
air inlets at the base of the windshield that
may block the flow of air into your vehicle.
• Use of non-GM approved hood deflectors may
adversely affect the performance of the
system.
• Keep the path under the front seats clear of
objects to help circulate the air inside your
vehicle more effectively.
• If the airflow seems low when the fan is at the
highest setting, the passenger compartment
air filter, if equipped, may need to replaced.
For more information, see Passenger
Compartment Air Filter on page 171 and
Scheduled Maintenance on page 410.
• If fogging reoccurs while in vent or bi-level
modes with mild temperature throughout
the vehicle, turn on the air conditioner
to reduce windshield fogging.
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