1994 Cadillac Fleetwood Owner's Manual - Page 134
1994 Cadillac Fleetwood Manual
Page 134 highlights
Automatic Your Cadillacmay have the optional automatic electrochromic rearview mirror. You may have the mirror that has a Three-position switch: OFF, MIN and MAX. If you do, just select a setting that suits yourneeds. When selecting the MAX setting, bright headlights far away will cause the mirror to gradually darken. Usethis setting in rural driving. By selecting the MIN setting, bright headlights have to be rather close for themirror to darken. Use this setting for city driving.