2001 Oldsmobile Aurora Owner's Manual - Page 168

On very hot days, open the windows long enough to let the hot air out. This reduces the time required to cool the interior of the vehicle to a comfortable level. If the system is in the automatic mode (AUTO-PUSH knob indicator light is on), during very hot days the system will automatically go to the RECIRC mode and the temperature door will initially be at the full cold position for maximum cooling. You can choose the extreme comfort setting of 60_F (16_C), but the system will not cool any faster by choosing the extreme comfort setting. In cold weather, the system will delay turning on the fan to avoid blowing cold air. The length of the delay depends on the engine coolant temperature and the outside temperature. The fan speed will increase as the temperature of the engine coolant increases. Turning the AUTO FAN knob will override this delay by turning off the automatic fan control mode and changing the fan speed. Defogging and Defrosting On cool, humid days, use the defog setting to keep the windows clear while also providing heat through the lower outlets. Turn the AUTO-PUSH knob clockwise to DEF to quickly remove fog or ice from the windshield. For maximum front defrost performance under extreme icing or frosting conditions, increase the temperature setting to 90_F (33_C) and increase the fan speed to high. Heating In cold weather, if the automatic mode is selected (AUTO-PUSH knob indicator light is on), the system will automatically direct the airflow out of the lower floor outlets and the temperature door will initially be positioned at the full hot position. You can choose the extreme comfort setting of 90_F (32_C), but the system will not warm up any faster by selecting the extreme comfort setting. 3-7