If you own a vehicle with mirrors that dim automatically when nearby traffic is detected, you may have wondered exactly how they work. We here at MINI of Burlington have all the facts on this cutting-edge automotive technology, and we invite you to our showroom in Shelburne, VT to test drive a new vehicle that delivers this important safety feature.

The chemical reactions that darken the mirror take place behind the thin sheet of glass covering the mirror’s surface. A unique compound that reacts in the presence of an electrical charge fills the space behind the glass. This material automatically gets darker when the headlights from another vehicle cause a nearby sensor to direct a charge into it.

Auto-dimming mirrors are highly useful because they make night driving safer by preventing the temporary blindness that may occur when a person behind the wheel at night is suddenly exposed to bright light.

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