1997 Chevrolet Corvette Owner's Manual - Page 151

Mode Buttons These buttons control the air intake, the air conditioning and the rear window defogger operation. The airconditioning may be forced off at high engine speeds orhigh engine oil or coolant temperatures, Rear Window Defogger FRESH AIR: Press this button and it will bring outside airinto your vehicle. The light on button will the come onwhen operating. Use this setting while trying to defrost ordefog windows to help clear moisture. RECIRCULATE: Press this button to limit the amount of freshair entering your vehicle by recirculating i most of the a r inside your vehicle.The light on the button will come on when operating. This setting is helpful when you are trying to cool thei quickly or to limit odors ar entering your vehicle.RECIRCULATE cannot be used while in the DEFROST DEFOG modes. or @ This button turns the rear defogger and heated outside mirrors on. The light on the button will come on when operating. The system automatically shuts off after approximately 10 minutes. If further defogging is desired, press the button again. The rearwindow defogger operates only when the engine is running. The rearwindow defogger uses a warming grid to remove fog from the rear window. Do not attach anything like a temporary vehicle license or a decal across the defogger grid on the rear window. a NC: This or onunder mostairconditioning light button turns the compressor off conditions. The on theA/C button comes on when the compressor is operating. The air conditioning doesnot operate at F temperatures below approximately 35 O to 40°F (2"C to 4" C). The air conditioning cools and dehumidifies the air coming into the vehicle. The air conditioning cannot be turned in DEFROST off as it helps to remove moisture from the vehicle. It also helps tokeep the windows clear. I NOTICE: Don't use a razor blade or something sharp on the insideof the rear window. you do, you If could cut or damage the warming grid, and repairs wouldn't be covered by your warranty.