1995 GMC Jimmy Owner's Manual - Page 138

Ventilation System Your vehicle's ventilation systemsupplies outside air to the inside your of vehicle when it is moving. With the sidewindows closed, air will flowinto the front air inlet grilles, through the vehicle, and out the rear air exhaust valve. Outside air will also enter the vehicle when theheater or the air conditioning fan is running. Ventilation Tips Keep the hood and front air inlet free of ice, snow, or anyother obstruction (such as leaves). The heater and defroster will workfar better, reducing the chance of fogging the insideof your windows. When you enter a vehicle in coldweather, turn the blower fan to HI for a few moments before driving off. This helps clear the intake ducts of snow andmoisture, and reduces the chance of fogging the inside of your windows. 0 Keep the air path under thefront seats clear of objects. This helps air to circulate throughout your vehicle. 3-4