Jun 072015

My headlights go on during the daytime but automatically shut off when it gets dark or even if I enter a tunnel. Then my dashboard lights come on but headlights stay off. Is there a sensor that may need to be replaced? And where is its location? Under the hood or in the dash somewhere? Have checked the fuses and they are intact. Please advise

  One Response to “1999 Cadillac Escalade”

  1. The sensor is generally located in the center on top of the dash, looks like a little ball sticking up just behind the windshield. You can park in a dark garage or at night and shine a flash light directly on it to test if it is working.

    There are 4 fuses in the dash and 1 under the hood for the headlights. Also there is a Daytime running lights Relay that should be checked. Beyond that is wiring and a DRL module, head lamp module and a body control module involved.

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