2008 Subaru Tribeca Owner's Manual - Page 212

6-4 Interior equipment Sun visors & Sun visor extension plate To block out glare, swing down the visors. To use the sun visor at a side window, swing it down and move it sideways. With the sun visor positioned over the side window, you can use the sun visor extension plate to prevent glare through the gap between the sun visor and center pillar. To use the extension plate, pull it toward the rear of the vehicle. When you have finished using it, stow it by pushing it toward the front of the vehicle. CAUTION Do not pull out the extension plate with the sun visor positioned over the windshield. The extension plate would obstruct your view of the rearview mirror. & Vanity mirror with light CAUTION Keep the vanity mirror cover closed while the car is being driven to avoid dazzle.