2006 sts inside rearview mirror does not darken..
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Cadillac STS Forum - 2005 through 2012 Discussion, 2006 sts inside rearview mirror does not darken.. in Past Cadillac Vehicle Discussion; I have had this problem since I bought the car. Does not go dark until the car behind you is ...
  1. #1
    Aurora5000's Avatar
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    2006 sts inside rearview mirror does not darken..

    I have had this problem since I bought the car. Does not go dark until the car behind you is right up on you. I just have to manually move the mirror so I am not blinded by the car behind me. Have read previous posts, seems like this auto dimming idea from cadillac doesn't work or work well. Just looking for a little help.

    Thanks,
    Steve

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    1BadCadSTS's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    Is your car tinted?

    Have you tried cleaning the ambient sensor on the mirror...

  4. #3
    Aurora5000's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    No and No. Where is the sensor to clean?

  5. #4
    Guy.Seminerio is online now Cadillac Owners Connoisseur
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    Re: 2006 sts inside rearview mirror does not darken..

    http://m.ebay.com/itm/271383309957

    Black dot on the top center of the face of the mirror I believe. Just clean the whole surface of the mirror.

    It's a gradual change. If it's pitch black and a car rolls up on you quickly, there's going to be a delay in the mirror dimming.

  6. #5
    PontiacV8's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    Quote Originally Posted by Guy.Seminerio View Post
    http://m.ebay.com/itm/271383309957

    Black dot on the top center of the face of the mirror I believe. Just clean the whole surface of the mirror.
    ...that's a "late design" mirror....the sensor on an "early design" mirror is on the right side of the mirror/right to the buttons...
    here:
    http://www.ebay.com/itm/181241968754


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    Guy.Seminerio is online now Cadillac Owners Connoisseur
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    Re: 2006 sts inside rearview mirror does not darken..

    Good to know. I was wondering why my 07 Sts didn't have it when I first got the v and saw it in there.

  8. #7
    Aurora5000's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    Looked at mirror...Has a small hole w/ sensor on backside of mirror closest to the driver's side.

    ----------

    Also mirror does not have temp. display. Its on DIC and no sensor on the front top of mirror.

  9. #8
    1BadCadSTS's Avatar
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    That's how it knows it night out. You need the on the face of the mirror.

  10. #9
    carter's_sts is offline Cadillac Owners Connoisseur
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    Re: 2006 sts inside rearview mirror does not darken..

    If you don't have Intellebeam there is a power button for the auto dim feature. That's how my non V works.

  11. #10
    PontiacV8's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    Quote Originally Posted by Aurora5000 View Post
    Looked at mirror...Has a small hole w/ sensor on backside of mirror closest to the driver's side.

    ----------

    Also mirror does not have temp. display. Its on DIC and no sensor on the front top of mirror.
    ...there should be two sensors...

    ...the one on the windshield side/"backside" of the mirror is the "ambient sensor"
    ...and the second one on the mirror side is the "headlamp sensor"
    ...on early design mirrors this sensor is located in a small hole next to the buttons...on late design mirrors the sensor is in the mirror glass/front top of the mirror...

    ...the little display shown on the ebay parts is a compass read out (available on STS without navigation system)...it's not a temp display..


    side note/offtopic:
    ...I always liked the compass mirrors, so I changed on my nav-equipped sts the stock export mirror (without compass readout) to a part with compass display...

  12. #11
    carter's_sts is offline Cadillac Owners Connoisseur
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    Re: 2006 sts inside rearview mirror does not darken..

    On the mirror itself I should say.

  13. #12
    PontiacV8's Avatar
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    Re: 2006 sts inside rearview mirror does not darken..

    Quote Originally Posted by carter's_sts View Post
    On the mirror itself I should say.
    ...he got a 2006 STS...so he should have an early design mirror...the sensor should be right to the buttons...

    ...see the ebay parts Guy (and myself) posted above in the earlier posts...

    Gentex Mirrors:
    ...early design...second sensor right to the buttons:
    www.ebay.com/itm/220795910972

    ...late design...second sensor in mirror glass:
    www.ebay.com/itm/221310315169

    ...I don't know what year/when the change exactly was...but GM now lists only the later design for repair/as a spare part...

  14. #13
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    Re: 2006 sts inside rearview mirror does not darken..

    Quote Originally Posted by PontiacV8 View Post
    ...there should be two sensors...

    ...the one on the windshield side/"backside" of the mirror is the "ambient sensor"
    ...and the second one on the mirror side is the "headlamp sensor"
    ...on early design mirrors this sensor is located in a small hole next to the buttons...on late design mirrors the sensor is in the mirror glass/front top of the mirror...

    ...the little display shown on the ebay parts is a compass read out (available on STS without navigation system)...it's not a temp display..


    side note/offtopic:
    ...I always liked the compass mirrors, so I changed on my nav-equipped sts the stock export mirror (without compass readout) to a part with compass display...
    Where did you find an intellibeam equipped mirror with compass?!

  15. #14
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    Re: 2006 sts inside rearview mirror does not darken..

    Quote Originally Posted by 1BadCadSTS View Post
    Where did you find an intellibeam equipped mirror with compass?!
    ...intellibeam and onstar were not available on exports...
    btw...onstar only works (and is available) in north america/canada...(and now china has it's own kind of onstar)...other countries: n/a
    ...for my export:...I had to find a pnp gentex autodim mirror w/compass, but w/o onstar...

  16. #15
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    Re: 2006 sts inside rearview mirror does not darken..

    In my tinted monte I covered the front sensor with electrical tape so the mirror thinks it's always pitch black outside so the slightest amount of rear light makes it dim. Except when put in reverse the car will undim it.

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