Principles of Operation

Rear View Mirrors - Interior

Principles of Operation

Interior Auto-Dimming Rear View Mirror

The auto-dimming feature is disabled when the vehicle is in REVERSE. Power is supplied to the interior auto-dimming mirror when the ignition is in the RUN or ACC position.

The interior auto-dimming rear view mirror has 2 photoelectric sensors that detect forward and rearward light conditions, and based on those inputs, adjusts the reflectance level of the interior auto-dimming rear view mirror and LH exterior auto-dimming mirror (if equipped) to eliminate unwanted glare.

When the forward sensor detects daytime conditions, the rearward sensor is inactive, and the mirror glass stays in a high reflectance mode. When the forward sensor detects nighttime conditions, the rearward sensor is active and detects glare from the headlights of vehicles approaching from the rear, or other glare producing light sources.

If the forward or rearward sensors are blocked, the interior auto-dimming rear view mirror and LH exterior auto-dimming mirror (if equipped) might not work correctly.