1999 Pontiac Grand Am Owner's Manual - Page 130

yellowblue Comfort Controls With this system, you can control the ventilation and heating in your vehicle. Your vehicle also has the flow-through ventilation system described later in this section. Temperature Knob The center control knob regulates the temperature of the air coming through the system. Mode Knob The right control knob changes the functions of your system. MAX: Use for maximum cooling. This setting recirculates much of the air inside your vehicle. It maximizes your air conditioner's performance and your vehicle's fuel economy. The air conditioning compressor will run automatically in this position when it is needed to help dry the air in the vehicle. VENT: In this position most of the airflow comes through the instrument panel outlets. A small amount of air comes through the floor vents. Set the center control knob to the temperature desired. BI-LEVEL: In this position the airflow comes through the instrument panel outlets and through the floor outlets. Set the center control knob to the temperature desired. Climate Control System with Air Conditioning Fan Knob 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 fan knob is moved to OFF. 3-2