Kia Optima: Automatic-dimming Function - Description and Operation - Electro chromic Inside Rear View Mirror - Body Electrical System - Kia Optima TF 2011-2026 Service ManualKia Optima: Automatic-dimming Function

To protect your vision during nighttime driving, your mirror will automatically dim upon detecting glare from the vehicles traveling behind you. The auto-dimming function can be controlled by the Dimming ON/OFF Button :

1. Pressing and holding the Feature Control button for more than 3 but less than 6 seconds turns the auto-dimming function OFF which is indicated by the green Status Indicator LED turning off.
2. Pressing and holding the Feature Control button again for more than 3 but less than 6 seconds turns the auto-dimming function ON which is indicated by the green Status Indicator LED turning on.
The mirror defaults to the "ON" position each time the vehicle is started.

Description
The ECM (Electro Chromatic inside rear view Mirror) is for dimming the reflecting light from a vehicle behind at night, Preventing glare from the light. The forward facing sensor detects brightnes ...

Repair procedures
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See also:

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Checking the amount of air conditioner refrigerant and compressor lubricant
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