1997 Pontiac Bonneville Owner's Manual - Page 146

Manual Operation You may also manually adjust the air delivery mode or fan speed. A/C: Press this button to turn the air conditioning on and off. The system will cool and dehumidify the air inside the vehicle. In the AUTO mode, the display will show that A/C is active, but the air conditioning compressor only operates when the system determines it is needed. '!AHEAT Manually selecting HEAT by cycling through the MODE settings will deliver air to the floor outlets. w. + selecting DEFOG by cycling DEFOG: Manually ' '!! through the MODE settings will deliver ,air to the floor and windshieldoutlets. BI-LEVEL: Manually selecting BI-LEVEL by cycling through the MODE setting will deliver warm air to the floor and cooler air to the middle instrument panel outlets. RECIRC: Press this button to limit the amount of fresh air entering your vehicle. You may use this setting to limit odors entering your vehicle. Press RECIRC to change to a manual MODE and a r will recirculate until i the RECIRC button is pressed again. RECIRC will show on the display and then return to EXT TEMP display. Operating the RECIRC mode in cold temperatures or under high humidity conditions may cause moisture to form on the inside of the windshield. If this condition OFF: Press this button to turn the system off. Fresh air will continue to flow through the vehicle, and the system will try to maintain the previously set temperature. The outside temperature will show in the display when the system is off. occurs, deselect the RECIRC button. DEFROST ,Press this button to clear the windshield. The system will automatically control the fan speed if you select defrost from AUTO. O F O C: Press this button to display the temperature in degrees Fahrenheit or Celsius. 3-5