1997 GMC Safari Owner's Manual - Page 153

When you close a vent, it will increase the flow of air coming out of any vents that are open. If you have rear heating or rear air conditioning, you will have adjustable vents in the rear of the vehicle to help directthe airflow. The rear airconditioning vents are located in the headliner at the rear of the vehicle. The rearheating vents are located next to the second and third seat on the driver's side of the vehicle, near the floor. You can move the vents todirect the flow of air, or close the vents altogether. When you close a vent, it will increase the flow of air coming out of any vents that are open. Your vehicle has airvents near the center and on the sides of the instrument panel that allow you to adjust the direction and the amount of airflow inside the vehicle. Push the vent up or down to direct airflow to your preference. Increase or reduce the amount of airflow by opening and closing the louvers. The ventsrotate to direct the airflow from side to side. Ventilation Tips 0 Keep the hood and front airinlet 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. 0 When you enter a vehicle in cold weather, turn the blower fan toHIGH for afew moments before driving off. This helps clear the intake ductsof 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. Thishelps air to circulate throughout your vehicle. 3-7 A - 0