Rear Window Defroster - Ford Mustang Owner's Manual

To heat the inside of your vehicle and defrost
the windshield and side windows at the same
time, turn the SELECT control to MIX, turn the
TEMP control into the red range, as required,
and turn the FAN control to the desired speed
between LO and HI.
On mild days you may want to ventilate your
vehicle with outside air. Turn the SELECT
control to VENT, turn the TEMP control to the
end of the blue range (full left) and turn the
FAN control to the desired speed. Air will be
delivered through the instrument panel registers.
Under normal conditions, the SELECT control
should be left in any position except OFF when
the vehicle is parked. This allows the vehicle to
"breathe" through the outside air inlet duct.

Rear Window Defroster

(If equipped)
The defroster for the rear window clears frost,
fog, or thin ice from both the inside and outside
of the rear window.
The control for the rear window defroster is
located on the left side of the instrument panel
below the headlamp switch.
The control for the rear window defroster
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