2002 Chevrolet Impala Owner's Manual - Page 127
2002 Chevrolet Impala Manual
Page 127 highlights
Electrochromic Automatic Dimming Rearview Mirror (If Equipped) Your vehicle may have an electrochromic day/night rearview mirror. Push the button in the center of the mirror to turn this feature on. The mirror will darken gradually to reduce glare from headlamps behind you. This may take a few moments. The mirror will lighten whenever you shift to REVERSE (R). There are two map lamps located on the bottom of the mirror. Each lamp is turned on and off by pressing the button next to the lamp. One photocell on the front of the mirror senses when it is becoming dark outside. Another photocell, facing rearward, senses headlamps behind you. To turn the electrochromic feature off, press the button in the center of the mirror again. To keep the photocells operating well, occasionally clean them with a cotton swab and glass cleaner. 2-61
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