GM Service Manual Online
For 1990-2009 cars only

To block out glare, you can swing down the visors. You can also move them from side to side. The visors also have extenders that you can pull out for added coverage.

Visor Vanity Mirrors

Open the cover on the top of the sun visor to expose the vanity mirror.

If your vehicle has the lighted vanity mirrors, the lamps come on when you open the cover.