Auto Dimming Mirror: Description
NOTE:
References to "new style" refer to Sierra, Silverado, Suburban, Tahoe, Yukon and Yukon XL models equipped with 4.8L, 5.3L and 6.0L engines. References to "old style" refer to Escalade, Pickup, Tahoe and Yukon models equipped with 5.7L, 6.5L and 7.4L engines.
Electrochromatic day/night rearview mirror automatically changes reflectance to reduce glare from headlights. At night, as glare of headlights from behind increases, mirror will gradually become darker to absorb glare. During daylight or when gearshift lever is in Reverse, mirror will be clear and fully reflective. On some models, driver's side outside mirror will also be an electrochromatic day/night mirror that is controlled by inside mirror. On some models, inside rearview mirrors also include a compass.