2000 Pontiac Bonneville Owner's Manual - Page 164

When the weather is cool or damp, operating in RECIRC for extended periods of time may cause fogging of the vehicle's windows. To clear the fog, switch back to outside air by turning off RECIRC, select either DEFOG or FRONT defrost mode and increase the fan speed. To avoid refogging of the windows, minimize your use of RECIRC under these conditions and turn the A/C on to help dehumidify the air. A/C Button A/C: Press this button to turn the air conditioning compressor on and off. The system will cool and dehumidify the air inside your vehicle. If your comfort control system is off, you can also turn it back on in PANEL mode by selecting the A/C button. Even though A/C is not selected, in FRONT defrost mode the A/C compressor will run automatically at temperatures over approximately 40_F (4_C) to improve windshield clearing performance. Electronic Climate Control System (Option) Temperature Knob (Driver's Side) The driver's side knob changes the temperature of the air coming through the system on the driver's side. Turn the knob toward the blue area to decrease the set temperature. Turn the knob toward the red area to increase the set temperature. When this knob is adjusted, the word DRIVER will be displayed under the set temperature. When the passenger's set temperature is not active, this knob controls both the driver's and passenger's side, and both DRIVER and PASS will be displayed under the set temperature. 3-4