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Unread 11-03-2010, 03:23 PM   #1
diegom6
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Rear view mirror operation?

Gave a quick look at the rear mirror and noticed it has a little buttom to power the automatic darkness when the headlight of a car behind hit it. Does it have a led or soemthign that let you know when is on or off? Couldn't find it, nor couldn't know if it was ON or OFF actually.

Thanks

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Unread 11-03-2010, 06:42 PM   #2
darkrt
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It has a green led that shows on the button when its on. It only shows when the ignition is on.
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Unread 11-04-2010, 08:41 AM   #3
diegom6
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and you can see it better (obviously) in nights. Just checked it, thanks.
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Unread 12-11-2010, 07:12 PM   #4
jeepsterguy
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I have the same mirror, its supposed to change when there is a car behind me, right?
I switched it off and on and I see no difference. Am I missing something?
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Unread 12-11-2010, 08:19 PM   #5
mjw930
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Quote:
Originally Posted by jeepsterguy View Post
I have the same mirror, its supposed to change when there is a car behind me, right?
I switched it off and on and I see no difference. Am I missing something?
It's only active when is senses the headlights from behind. Typically, unless the car is within 10 car lengths behind you it's not bright enough to trigger the sensor and darken the mirrors.
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Unread 12-11-2010, 08:41 PM   #6
jeepsterguy
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Quote:
Originally Posted by mjw930 View Post
It's only active when is senses the headlights from behind. Typically, unless the car is within 10 car lengths behind you it's not bright enough to trigger the sensor and darken the mirrors.
10-0 car lengths, I see no difference on or off. The rear window is tinted and it cuts some of the light off, other than that, I can't tell.
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Unread 12-11-2010, 08:44 PM   #7
mjw930
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Quote:
Originally Posted by jeepsterguy View Post
10-0 car lengths, I see no difference on or off. The rear window is tinted and it cuts some of the light off, other than that, I can't tell.
Then you don't have it switched on or it's not working.
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Unread 12-11-2010, 08:47 PM   #8
jeepsterguy
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Quote:
Originally Posted by mjw930 View Post
Then you don't have it switched on or it's not working.
The green light goes on and off when I cycle the switch but nothing happens.
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Unread 12-11-2010, 08:53 PM   #9
2011Hemi
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Quote:
Originally Posted by mjw930 View Post
It's only active when is senses the headlights from behind. Typically, unless the car is within 10 car lengths behind you it's not bright enough to trigger the sensor and darken the mirrors.
In addition to the above, it only functions when YOUR headlights are on.
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Unread 12-11-2010, 08:56 PM   #10
jeepsterguy
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Originally Posted by 2011Hemi View Post
In addition to the above, it only functions when YOUR headlights are on.
Headlights are on.
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Unread 12-11-2010, 09:03 PM   #11
2011Hemi
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I would say yours has a malfunction in it somewhere. I know mine gets very dark pretty quick when someone in behind me. It seems to take longer to go back to normal (clear) mode than it does to darken.

Try using a flashlight and point it at the sensor on the inside mirror.
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Unread 12-11-2010, 09:15 PM   #12
jeepsterguy
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Quote:
Originally Posted by 2011Hemi View Post
I would say yours has a malfunction in it somewhere. I know mine gets very dark pretty quick when someone in behind me. It seems to take longer to go back to normal (clear) mode than it does to darken.

Try using a flashlight and point it at the sensor on the inside mirror.
If it takes longer to go back to normal, turning the switch on and off is not the way to test it.
I will try the flashlight and also start with the switch off and when I see a car behind me, I'll turn it on again.
Thanks.
One thing I noticed is that both the rear and side mirrors don't produce a lot of reflection even when the car behind me has the high beams on.
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Unread 12-13-2010, 07:43 PM   #13
jeepsterguy
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Quote:
Originally Posted by 2011Hemi View Post
Try using a flashlight and point it at the sensor on the inside mirror.
I used the flashlight, it does darken, not as much as I expected. Thanks now I know that it works.
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Unread 12-14-2010, 08:43 AM   #14
JTS97Z28
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The jeep has auto dimming side mirrors as well I would assume correct? Atleast most other cars that have an auto dimming inside mirror that same switch also controls the outside auto dimming function as well. Just wanted to double check that those dim as well as I'm pretty sure I remember my 05 limited and 08 SRT8 had power, heated, dimming outside mirrors.

James
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Unread 12-14-2010, 09:14 AM   #15
zman
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I don't believe the side mirrors are auto dimming. I have this same mirror on my 2003 Rubicon. As far as not working, if your rear window is limo tint I could see why the auto dimming feature does not work. Also I have been told (never did confirm) it senses daylight/night and not controlled by the headlight switch. When dark outside it will dim when it senses headlights from behind.
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