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I have a 91 Coupe DeVille and the headlights will not turn off. I disconnect and reconnect the battery and they come right back on. I have checked the fuses and they seem to be fine. Any ideas?
 

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'02 ETC CE, '04 CTS-V, '04 XLR, '13 XTS Platinum
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Could be a stuck relay (coil de-energizes when the battery voltage is removed) or a defective twilight sentinel sensor circuit (thinks it's dark all the time) which resets when the battery voltage is removed.
 

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Discussion Starter #3
More story just got more complicated. To turn the headlights off so the batter wouldn't die, I was disconnecting the battery each time I parked the car. When I popped the hood this last time, the cable broke and now my hood will not open. I tried finding the hood release from under the car, but can't find it. Now I can't connect the battery to get the car home.
 
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