1997 Pontiac Trans Sport Owner's Manual - Page 214

BI-LEV: This setting directs outside air into your vehicle in two ways. Cooler air is directed toward your upper body through the front instrument panel outlets, while warmed air is directed through the heater ducts at your feet. +# +* Mode Buttons RECIRC: Press this button (the light will glow) to limit the amountof fresh air entering your vehicleby recirculating much of the air inside your vehicle.You may use this setting to limit odors entering your vehicle. Press theOUTSIDE AIR button (the light on the RECIRC button will go off) to let outside air circulate into the vehicle. +# LOWER: This setting brings in mostof the air 0 useful during cold or inclement weather through thefloor ducts. This setting is also used to send air to the rearof the vehicle. Keep the area under the & OUTSIDE AIR: Press this button (the light will b front seats free of objects W . c m d . d~bt&ru~,t+..ifl~w glow) to send outside air into your vehicle. Using this @ the rear of the vehicle...will setting while tryingto defrost or defog the windows (fi3, help clear the vents of moisture. Press the RECIRC +# DEFOG: This setting directs air to the windshield OUTSIDE (the - button limitlight on the entering theAIR button will go and through the floor ducts. This mode is particularly off) to outside air vehicle. because your of Pontiac Trans Sport's larger windshield area. DEFROST This setting directs most of the air to the windshield andside window vents. 3-3