When driving after dark, the automatic dimming rearview mirror reduces the glare from headlights behind you, based in inputs from the mirror sensor. This feature is always active.
The auto dimming function cancels when the shift position is in R.
Honda Civic Service Manual. Front Door Glass Run Channel Removal and Installation (4-door)
826130 LEFT
827130 RIGHT
Removal
1.
Front Door Power Window Switch Panel (4-door)
1.
Remove the power window switch panel (A).
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