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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  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: How do I turn on the power mirror defoggers?

If your Accord is equipped with power mirror defoggers, these can be used to quickly defrost your mirrors on winter mornings. To activate them, just do the following: Turn the key to on. Locate the Mirror Defogger button on...

Q: Why Do Side View Mirrors Say That Objects Are Closer Than They Appear?

The right hand side view mirror is a convex mirror. It gives you that "fish eye" view instead of a more natural flat reflection. Convex mirrors offer you a wider field of vision than regular mirrors, but they have one...

Q: How do I turn on the sun visor mirror light?

The sun visor mirror light will automatically turn on when the mirror is accessed.

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.