Description & Operation

On all except Buick models, power operated rear view mirrors are controlled by a switch on the door armrest for the driver's mirror and a switch on the instrument panel for the passenger side mirror. On Buick models, the driver's door switch controls both mirrors, with a selector switch in the base of the control switch determining which mirror is operated. Movement of the mirror glass is accomplished by reversing polarity to 2 motor and gear reduction units located in each mirror housing.

Cadillac models also have a power mirror heating system which operates in conjunction with the rear window defogger. When the defogger is turned on, the mirror base heats up through a ground lead soldered to it. A thermistor in the wiring circuit interrupts the current flow when the mirror base reaches 158°F and turns off the power to the mirror.