1987 Buick Riviera Night Headlights On Speedometer Light Panel Very Bright

1987 BUICK RIVIERA
110,000 MILES
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THEHEND6
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at night when headlights are on the speedometer light panel is very bright & wont dim, and the instrument lights dont come on. What could be the problem?
Nov 30, 2012 at 6:53 PM
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JDL
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Did you try rotating the headlamp switch knob? Usually you can dim interior lamps that way. If it won't work maybe something wrong with headlamp switch?
Nov 30, 2012 at 7:02 PM
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THEHEND6
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don't have a knob. I have replaced the whole switch & it still wont dim, i guess there is some kind of sensor in the dash maybe that is not reading that it is night time.
Nov 30, 2012 at 8:36 PM
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JDL
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For twilight sentinal, there is a photo-cell under the speaker or defrost grille. I can't be positive that the problem is the photo-cell?
Nov 30, 2012 at 10:18 PM
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THEHEND6
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do you know how one would check if its the problem? how do i get to it? checking my manual & not finding it?
Nov 30, 2012 at 10:57 PM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
I'm not up to speed on your model year. I can just tell you according to our database. If you have twilight sentenal? For the photo-cell, our data base just says center of dash.
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Dec 1, 2012 at 12:01 AM
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