For 1990-2009 cars only
Use the thumbwheel to open or close the outlets.
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 the vehicle. |
| • | Use of non-GM approved hood deflectors may adversely affect the performance of the system. |
| • | Keep the area around the base of the instrument panel console and air path under the seats clear of objects to help circulate the air inside of the vehicle more effectively. |
