2014 Chevrolet SS Owner Manual - Page 232

8-6 Climate Controls Operation Tips . Air Vents Maintenance Passenger Compartment Air Filter The vehicle has a passenger compartment air filter that filters the outside air entering the vehicle. The filter removes contaminants, such as pollen and dust. See your dealer for more information about filter replacement. Clear away any ice, snow, or leaves from the air inlets at the base of the windshield that may block the flow of air into the vehicle. Use of non-GM approved hood deflectors may adversely affect performance of the system. Keep the path under the front seats clear of objects to help circulate the air inside the vehicle more effectively. . . The air outlets have adjustable vanes that move up or down and left or right to change the direction of the airflow. Use the thumbwheels located near the air outlets on the instrument panel to shut off the airflow.