1993 Pontiac Grand Am Owner's Manual - Page 104

Defogging Windows To defog the windshield,turn all three control knobs to the far right. Air Conditioning System (OPTION) Air Conditioning Your system has threeair conditioner settings. Before using yourair conditioner on very hot days, open the windows long enoughto 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 muchof the air inside your vehicleso 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. 103 I I 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. :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 regulatesthe temperature of the air coming through the system. Mode Control: The right control knob changes thefunctions of your system. 3f