1996 GMC Jimmy Owner's Manual - Page 137

Ventilation Tips 0 Rear Window Defogger (Option) Keep the hood and front air inlet free of ice, snow or any other obstruction (such as leaves). The heater and defroster will work far better, reducing the chance of fogging the inside of your windows. When you enter a vehicle in cold weather, turn the blower fan to HI for a few moments before driving off. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows. Keep the air path under the front seats clear of objects. This helps air to circulate throughout your vehicle. 0 0 Defogging and Defrosting On cool, humid days, use BLEND to keep the windshield and side windows clear. Use DEFROST to remove fog or ice from the windshield quickly in extremely humid or cold conditions. Turn the temperature knob clockwise and move the fan control toward HI. If your vehicle has this option, therear window will have lines that warm the glass. For best results, clear the window of as much snow or ice aspossible before using the rear window defogger. To turn on the rear window defogger, find the switch marked REAR DEFOG on your instrument panel below the headlamp switch. Press ON until the light in the switch comes on, then release it. It will only work if the ignition switch is turned to RUN. 3-4