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#TechTalk: Electronic Chromic Mirror

Posted January 19, 2022

When you’re driving after dark, there are times that you must deal with the glare of headlights reflected from your rearview mirror from vehicles behind you. Thankfully, adjusting the mirror is as simple as flicking a switch to change it to nighttime driving mode. However, that also dims everything else and can make it hard to see anything that’s reflected from the mirror. ECM or Electronic Chromic Mirror might just be the answer to that dilemma.

What is ECM?

Electronic Chromic Mirror, also known as Electrochromatic Mirror, works similarly to eyeglass lenses that automatically darkens when exposed to sunlight. Some call it Auto Dimming Rearview Mirror, and that sums up what this technology does. When light shines onto the mirror’s surface, it automatically dims, reducing glare and discomfort. However, they also dim in proportion to the intensity of the light shining onto them. So, the mirror will dim more for brighter headlights, or when those headlights are closer to your car. Moreover, it also offers several advantages over standard manual rearview mirror options: a clearer view at night than what’s possible with conventional rearview mirror technology, no need to manually adjust the mirror for nighttime driving, and ECM technology ensures the right amount of dimming at all times.

How does it function?

The Electronic Chromic Mirror automatically controls the glare from the headlights of the car behind you in nighttime or low light driving conditions. When the engine is running, the glare is automatically controlled by the sensor mounted in the rearview mirror. The sensor detects the light level around the vehicle, and automatically adjusts to control the headlight glare from vehicles behind you.

ECM is a remarkable safety and convenience feature, also bearing in mind the safety of other road users. Just sit back, relax, and enjoy every ride as you continue to achieve #betterjourneys ahead.