2003 Chevrolet Venture Owner's Manual - Page 211

Outlet Adjustment Rear Climate Control System (Without Entertainment System) Your vehicle may have a rear climate-control system that allows the driver to adjust the fan speed or a rear-seat passenger to set a separate temperature and adjust the fan speed, for the rear-seating area. This system works with the main climate-control system in your vehicle. This knob 7is located below the main climate-control Use the knob located in the center of the outlet, to change the direction of the air flow. Operation Tips Clear away any ice, snow or leaves from the air inlets on the hood 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. 0 system on the instrument panel switchbank. Use this knob to adjust the fan speed for the rear-seat passengers, from the front-seating area. Keep the path under the front seats clear of objects to help circulate the air inside your vehicle more effectively. 3-28