2002 Pontiac Grand Am Owner's Manual - Page 135

(Floor): In this mode most of the airflow comes through the floor outlets. The rest of the air comes through the windshield and side window vents. Set the center knob to the desired temperature for comfort. (Defog): This mode divides the airflow between the floor outlets and the windshield defroster vent. The air conditioning compressor will run automatically in this mode when it is needed to help dry the air in the vehicle. (Front Defroster): This mode directs most of the airflow through the windshield defroster vent. Some of the air goes to the floor outlets. The air conditioning compressor will run automatically in this mode when it is needed to help dry the air in the vehicle. Mode Button A/C (Air Conditioning): Press A/C to operate the air conditioning. The indicator light above the button will glow when the button is pressed to indicate that the air conditioning system has been turned on. The fan knob must be set to a speed for the air conditioning to operate. Air Conditioning 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. For normal cooling on hot days, use the vent mode with the temperature knob in the blue area and the A/C indicator light glowing. The system will bring in outside air and cool it. On very hot days, begin by opening the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down, which should help fuel economy. On cool, but sunny days, the sun may warm your upper body, but your lower body may not be warm enough. You can use bi-level mode with the temperature knob in the middle and the A/C indicator light glowing. The system will bring in outside air and direct slightly warmer air to your lower body. 3-3