1997 Pontiac Grand Am Owner's Manual - Page 130

Air Conditioning On very hot days, open the windows long enough to let hot, inside air escape. This reduces the time it takes for your vehicleto cool down, which should help fuel economy. For quick cool-down on very hot days, use MAX with the temperature knob all the way in the blue area. If the setting is used for long periods of time, the air in your vehicle may become too dry. For normal cooling on hot days, use N C with the temperature knob in the blue area. The system will bring in outside air and cool it. Heating Turning the right control knob to HEATER and the center control knob clockwise sends some heated air through the heater ducts toward your feet, and some through the defroster vents. VENT and HEATER areeconomical positions because the air conditioner compressor doesn't run in these two settings. This reduces engine load, resulting in improved fuel economy. If either setting fails tokeep you comfortable, or causes your windows to fog up, turn the right control knob to one of the air conditioning positions, or to DEFROST. If you have the optional engine coolant heater On cool but sunny days, sun may warm your upper the (engine block heater) and use it during cold weather, body, but your lower body may not be warm enough. You 0 "F (- 18O C) or lower, your heating system will more can useBI-LEVEL with the temperature knobin the quickly provide heat because the engine coolant is it middle. The system will bring outside air and direct in to your upper body, while sending slightly warmed air to already warmed. See "Engine Coolant Heater" in the Index. your lower body.You may notice this temperature difference more at some times thanothers. at 3-5