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Grand Cherokee - 1999 - Headlight Problem

I have a Grand Cherokee, 1999, V6, and am having a problem with the headlights.



When the car is parked in the garage (and keys are not in the ignition–I know some people like to keep them there so they don’t ever lose their keys–but that’s not me) and the headlights come on by themselves. They stay on for 5-10 seconds and then turn off by themselves. It doesn’t happen every day, but when it does and I just happen to be in the garage it sometimes happens once, and then sometimes twice in a row.



Yesterday, I turned them off the auto setting to see if it would happen, and it did once. The lights don’t flicker–they just go on and then go off on their own.



Is this a sensor problem? I am not having any other electrical problems with the car.



I’d like to have some idea what it might be before I take it to the dealership.



Thanks.

The problem might be in the body control module. This module recieves the signal from the automatic headlamp light sensor to turn the headlights on and off.

Tester