1997 Mercury Cougar Owner's Manual - Page 91
1997 Mercury Cougar Manual
Page 91 highlights
There are two light sensors (photocells) in this mirror. The sensor that detects rear glare is located inside a widow in the center of the mirror. The second light sensor which determines outside light level is located on the backside of the mirror case. NOTE: Do not block the sensor on the backside of the mirror (i.e., with a parking tag, car deodorizer, etc.) since this may impair proper mirror performance. One important safety feature is that the mirror automatically returns to the normal position whenever the vehicle is placed in R (Reverse) (when the mirror is in the ON position). This feature ensures a bright clear view in the mirror when backing up. Sun Visors Turning on the Mirror Light on the Sun Visors (If equipped) To turn on the visor mirror light, lift the mirror cover. The mirror on the sun visor 89