Thread: Auto Dimming Mirror - it's not just for '04s anymore!
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Old Feb 25, 2012 | 04:21 PM
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onehundred80
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From: Ontario
Default Re: Auto Dimming Mirror - it's not just for '04s anymore!
Originally Posted by MikeR
I would think the little window was for a light sensor so it knows when it is dark and activates the auto dimmer......
There is a window on the back for the sensor, back being the opposite side to the mirror, you always look at the front of mirrors, unless you don't like what you see of course.

On my 300 there is a green light on the front.

The first post says to cover the sensor on the back to test if it is working, no mention is made of the front window.
 
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