1997 Buick Century Owner's Manual - Page 123

Electrochromic Daymight Rearview Mirror (If Equipped) The mirror's two outer buttons operate the lights on the bottom sides of the mirror. 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 featureoff, press the button in the center of the mirror again. -Your Buick may have an electrochromic dayhight 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. To keep the photocells operating well, occasionally clean them with a cotton swab and glass cleaner. Manual Remote Control Outside Mirrors Adjust the driver's side outsidemirror with the control lever located on the driver's side door armrest. Adjust the passenger's side outsidemirror with the control lever located on the passenger's side door armrest. 2-47