1998 Oldsmobile Aurora Owner's Manual - Page 157
1998 Oldsmobile Aurora Manual
Page 157 highlights
Heating In coldweather, if the automatic mode is selected (AUTO-PUSH knob indicator light is on), the system will automatically direct the airflow out the lower of floor outletsand the temperature door will be positioned at the full hot position. can choose the extreme You comfort setting of 90°F (32°C) but the system will not warm up any faster by selecting theextreme comfort setting. Ventilation System Your vehicle's flow-through ventilation system always allows outsideair to flow through your vehicle when it is moving, even when the system is off. In cold weather, the system will delay turning on the fan to avoidblowing cold air. The lengthof the delay depends on the engine coolant temperature the and outside temperature. The fan speed will increase asthe temperature of the engine coolant increases. Rotating the AUTO FAN knob will override thisdelay by turning off the automatic fan control mode and changing the The direction of the air can be controlled by adjusting or fan speed. closing the outlets in the instrument panel. Rotate the control between the front outlets upward to open the outlets and downward to close the outlets. Adjust the direction of airflow from side to sidewith the controls in each outlet.