1999 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 128

yellowblue Battery Run-Down Protection This feature shuts off the dome, reading, glove box, cargo and underhood lamps if they are left on for more than 40 minutes when the ignition is off. This will keep your battery from running down. Electrochromic Inside Rearview Mirror with Compass (If Equipped) Your vehicle may have an electrochromic inside rearview mirror. When on, an electrochromic mirror automatically dims to the proper level to minimize glare from lights behind you after dark. Mirrors Inside Day/Night Rearview Mirror Pull the tab under the mirror toward you to reduce glare from headlamps behind you after dark. Push the tab away from you for normal daytime operation. The mirror also includes an eight-point compass display in the upper right corner of the mirror face. When on, the compass automatically calibrates as the vehicle is driven. 2-56