2002 Chevrolet TrailBlazer Owner's Manual - Page 181
2002 Chevrolet TrailBlazer Manual
Page 181 highlights
If your vehicle has the automatic system and you select FRONT defrost or defog from AUTO, the system will control the fan speed. Adjust the temperature and fan speed to your comfort level. After the windshield is clear, adjust the temperature to your normal setting and select the AUTO button and return to AUTO mode and fan control. For maximum front defrost performance under extreme icing or frosting conditions, increase the temperature setting to 90_F (32_C) and increase the fan speed to high. If your vehicle is equipped with heated mirrors, this button will activate them. After 10 minutes it will turn off by itself, or press the button during the heating cycle to turn it off. If you need additional warming time, press the button again. Do not attach a temporary vehicle license, tape or decals across the defogger grid on the rear window. NOTICE: Do not try to clear frost or other material from the inside of the rear window with a razor blade or anything else that is sharp. This may damage the defogger grid. The repairs wouldn't be covered by your warranty. Rear Window Defogger The lines you see on the rear window warm the glass. Press the button to start warming your window. A light will glow in the button while the defogger is working. 3-9
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