Question about 1999 Jeep Grand Cherokee

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1999 Grand Charokee limited

What causes the head lights to come on a couple of hours after dark whether the security system is on or not? Is this caused by a short some where in the security system?

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  • Anonymous Oct 16, 2008

    I have the same problem with my 99 gr.cherokee. Lights will turn on randomly when the truck is off.This happens any time of day or night. I also have an bad odor , kind of mold mildew smell from heater vents.

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Well the mildew smell is probably because you have mildew in your heater vents, or something worse...like a dead animal.

There is probably a pretty simple short. If these came with the automatic option for the headlights (where a photosensor automatically activates them when the light drops to a certain level) it might be in that circuitry.

Posted on Oct 21, 2008

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