2000 Chevrolet Lumina Owner's Manual - Page 133
2000 Chevrolet Lumina Manual
Page 133 highlights
Rear Window Defogger The rear window defogger uses a warming grid to remove fog from the rear window. Press the area labeled PUSH to turn the defogger on. NOTICE: Don't use a razor blade or something else sharp on the inside of the rear window. If you do, you could cut or damage the warming grid, and the repairs wouldn't be covered by your warranty. Ventilation System The rear window defogger will turn itself off after about 10 minutes. If you turn it on again, the defogger will only run for about five minutes before turning off. You can also turn it off by turning off the ignition or pressing the button again. Do not attach anything like a temporary vehicle license or decal across the defogger grid. Adjust the direction of airflow by moving the vents. Your vehicle's flow-through ventilation system supplies outside air into the vehicle when it is moving. Outside air will also enter the vehicle when the air conditioning fan is running. 3-5
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