Electrochromatic mirrors not working correctly, guess what it was?

[vettepilot]

Thought I would share this, wasn't sure where to put it but figured plenty of exposure in this area.
I noticed that for the past several weeks my mirrors were not dimming down all the time. At first I thought it might be the cold weather, but in the middle of all the cold, we did have some warm days, and they still acted the same. I was getting ready to make an appointment to have them checked.
Two days ago I washed the car, and cleaned the inside of the windows. The backlight was especially filmed because it's so difficult to get in and clean. That evening I noticed that the mirrors were dimming with the slightest light from cars way behind me. Evidently the fog/film on the backlight must have diffused the incoming light so much the light sensors couldn't "see enough" to tell the mirrors to dim. Problem solved.
vettepilot

[Pleasure Pig]

Unfortunately, the dealer would have had your Vette for about 2 weeks and would have completely rewired it by then........and still wouldn't have found the problem.

[vettepilot]

Yeah, and all it needed was some TLC and some windex.
vettepilot

[Ralph Kramden]

Great info!

Thanks for sharing.

[danl72]

Thanks for the info. I guess I better check my mirrors. I don't have this problem, and i want to make sure that I don't.