Pontiac 1993 Grand Am Owner's Manual page 104

Defogging Windows
To defog the windshield, turn all three
control knobs to the far right.
I
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Air Conditioning System
(OPTION)
The air conditioner and heater work
best if you keep your windows closed
while using them. Your vehicle also has
the flow-through ventilation system
described later in this section.
3f
: The left control knob sets the
fan speed. To select the force of air you
want,
turn
the knob. The fan is always
running unless the mode control is
moved to
OFF.
Temperature Control: The center
control knob regulates the temperature
of the air coming through the system.
Mode Control: The right control knob
changes the functions of your system.
Air Conditioning
Your system has three air conditioner
settings. Before using your air
conditioner on very hot days, open the
windows long enough to let hot inside
air escape. This reduces the amount of
work your air conditioner's compressor
will have to do, which should help fuel
economy.
MAX: Use for maximum cooling. This
setting recirculates much of the air
inside your vehicle so it maximizes your
air conditioner's performance and your
vehicle's fuel economy.
A/C: Use for normal cooling on hot
days. This setting cools outside air and
directs it through the instrument panel
outlets.
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