2004 Pontiac Vibe Owner's Manual - Page 128

The rear window defogger will turn off automatically approximately 15 minutes after the button is pressed. The defogger can also be turned off by pressing the button again or by turning off the engine. 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. Notice: Don't use a razor blade or something else sharp on the inside of the rear window. If you do, you could cut or damage the defogger and the repairs would not be covered by your warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid. • 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. Outlet Adjustment Use the air outlets located in the center and outboard sides of the instrument panel, to change the direction of the air flowing through the vents. • If the airflow seems low when the fan is at the highest setting, the passenger compartment air filter may need to be replaced. For more information, see "Passenger Compartment Air Filter" following and Short Trip/City Scheduled Maintenance on page 6-7. 3-22