1993 GMC Safari Owner's Manual - Page 129

Comfort Controls ' Flow-Through Ven~tilatjonSystem . Your vehicle's flow-through ventilation system supplies outside air to the inside of your vehicle when it is moving.Withthesidewindowsclosed,airwillflow into the front air inlet grilles at the base of the windshield, through the vehicle and out the rear air exhaust valves. Outside air will also enter the vehicle when the heater or the air conditioning fan is running. Ventilation Tips e Keepthehoodandfrontairinletfree of ice,snow,oranyother obstruction(suchasleaves).Theheateranddefrosterwillworkfar better,reducingthechance of foggingtheinside ofyourwindows. Whenyouenteravehicle in cold weather, turn the blower fan to HIGH for a few moments before driv.ing off. This helps clear the intake ducts ofsnow andmoisture,andreducesthechance of foggingtheinside of 1 your 8 - e --b. e - e Keep the air path under the front seats clear to circulate throughout your vehicle. I of objects. This helps air 3-3