The brighter the glare the darker the mirror becomes
Drive safely at night — eliminate glare from vehicles behind you
These mirrors are made by Donnelly
Restores your original mirror and incorporates advanced features for safer and easier travel. At night, sophisticated sensors and circuitry detect glare from vehicles approaching from the rear and automatically darken the mirror to eliminate glare. Kit includes mirror, wedge-style mount, wiring harness and instructions. Installs in about 2 hours.