2005 Chevrolet Astro Owner's Manual - Page 137

Notice: Using a razor blade or sharp object to clear the inside rear window may damage the rear window defogger. Repairs would not be covered by your warranty. Do not clear the inside of the rear window with sharp objects. Rear Heating System Your vehicle may have a rear heating system that allows you to adjust the amount of air flowing into the rear of the vehicle, from the front seating area. This feature works with the main climate control system in your vehicle. Outlet Adjustment Move the thumbwheel in the center of the outlets up or down to change the direction of airflow. Operation Tips • 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 your vehicle. • Use of non-GM approved hood deflectors may adversely affect the performance of the system. • Keep the path under the front seats clear of objects to help circulate the air inside of your vehicle more effectively. The thumbwheel for this system is located to the right of the audio system. Turn the thumbwheel up or down to increase or decrease the amount of heated air sent to the rear seating area. 3-21