How Your Vehicles Auto-Dimming Rearview Mirror Works

Almost all late-model vehicles sold at Schulte Subaru have auto-dimming mirrors that help keep you safer when driving in the dark. These mirrors contain a sensor that automatically dims your rearview mirror. Extreme glare is a safety hazard, as it can temporarily blind you while driving. Here is how these devices work.

An auto-dimming mirror fights the Troxler Effect by detecting ambient light beams coming from the vehicle behind you and slowly darkening that portion of the mirror. The mirror will continue to darken to reduce glare from the headlights. Without this mirror, you would have a temporary blind spot in your rearview mirror after the vehicle is no longer behind you.

The sensor in your mirror works with a microprocessor. When it detects glare, it sends a charge through an electrochromic gel residing between the mirror’s two layers of glass. This scientific process keeps you safer during every nighttime journey in Sioux Falls, SD.