I have a 2002 Altima SE with 76K miles. For about the last month, I have been awoken between 2-4 AM by the lights and alarm going off on my car for no apparent reason. I asked the dealership what to do, they said take all batteries out of the keyfobs. I did and it still occurred. I was also told the car's battery could be the culprit. I replaced the battery and it still happened. I have resorted to disconnecting the battery at night which is obviously a ridiculous solution. Is there anything else that may be causing this? This is causing problems with neighbors and I have lost hours of sleep over this. Could the alternator be a cause? PLEASE HELP!