Question about 1990 Buick Riviera

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Light sensor hello i have buick Riviera 1990 i dont know where is the front light sensor is located coz the light didnt turn on by any switch it turns on automatic at night can any one help me please urgent thanks

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The light sensor is in the dash board top about 2/3rds of the way over toward the passenger side. You will see 3 or 4 small slits, and that is where it picks up the light, or absense of light. Is the twilight control switch, located under the main light switch, in the position to turn the lights on automatically? It is a slide type switch, and must be slid over to the right for the automatic control to work.

Posted on Oct 29, 2008

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