1999 GMC Jimmy Owner's Manual - Page 130
1999 GMC Jimmy Manual
Page 130 highlights
yellowblue Sun Visors To block out glare, you can swing down the top and bottom visors (if your vehicle has one). You can also swing the bottom visor from side-to-side. Your visors may have an extension that can be pulled out for additional glare protection and a strap for holding small items, such as maps. Illuminated Visor Vanity Mirror (If Equipped) Visor Vanity Mirror Pull the sun visor down and lift the cover to expose the vanity mirror. Pull the sun visor down and lift the mirror cover to turn on the lamps. 2-66