Q: What Do Electrochromatic Mirrors Do?

asked by on

What do electrochromatic mirrors do?

Electrochromatic mirrors are what can be termed as "automatic" day/night mirrors. These types of rear view mirrors have two sensors that detect light. One light sensor is on the back of the mirror (toward the windshield) that measures the amount of ambient light. During the daytime when ambient light is greatest, the automatic response of the electrochromic mirror is disabled.

The other light sensor is on the front of the mirror (facing the driver). This sensor detects light from the headlamps of vehicles to your rear. At nighttime when the amount of ambient light is least, this mirror dims automatically to reduce the blinding glare from the headlamps of the vehicles behind you.

Many vehicles come from the factory with electrochromatic rear view mirrors. Some side view mirrors are electrochromatic as well. These mirrors are also available from the aftermarket, making them an easily accessible upgrade to most any vehicle. If you need any assistance, a certified mechanic can help you repair or replace your mirrors if necessary.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What Do Electrochromatic Mirrors Do?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: How do you use the automatic dimming rearview mirror?

If your car is equipped with an automatic dimming rearview mirror, you have a handy solution for beating glare from behind you. Here’s how the mirror works: Turn the key to ON. Turn the mirror on. Once activated,...

Q: My compass in the mirror is not working again.

Hello, thanks for writing in. If the compass in the rear view mirror has ceased to function then the mirror will likely have to be replaced. You may be able to take apart the rear view mirror and attempt to...

Q: What Dangers Are Caused by Hanging Things From the Rearview Mirror?

The first danger that should be considered is the fact that items on the rearview mirror are a distraction. Depending on the object they can partly obscure your view. Visibility is a main concern as well as depending on the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...