1996 Pontiac Grand Am Owner's Manual - Page 127

Hc-4ing 'lix---lg the right control knob to HEATER and the center controlknob clockwise sends some heated air through the heater ducts toward your and some feet through the defroster vents. Veri, 3ys1 Use when outsidetemperatures are mild, and little heating or cooling is needed. Turn the right knob to VENT. Airflow is directedthrough the instrument panel outlets. Set the center knob to the temperature desired. or VENT and HEATER are economical positions because Your Pontiac's flow-through ventilation system supplies the air conditioner compressor doesn't run in these two outside air into the vehicle when it is moving. Outside settings. This reducesengine load, resulting in improved air will also enter the vehicle when the heater or the air fuel economy. If either setting fails to keep you conditioning fan is running. comfortable, orcauses your windows to fog up, turn right control the knob to oneconditioning of the Adjust air direction the of positions, to DEFROST. airflow by moving the louvered vents. If you have the optional engine coolant heater (engine block heater) and use it during cold weather, 0 O F , (- 18 C) or lower, your heating system will more quickly provide heat because the engine coolant is already warmed. See "Engine Coolant Heater" the Index. O 3-5