• possibly a bad BCM (body control module).
  • Have your alternator checked as well as all electrical connections associated with the alternator. The battery light going on means the car is drawing all electrical power from the battery. When the engine is running all electrical power should be coming from the alternator and if it is all coming from the battery it will eventually drain and then nothing (including the engine) will work.
  • not sure, maybe you should take your car to a mechanic
  • if it is your dome light, make sure that you door is fully closing. If there is something making the door closing incomplete, every time you jostle the car, the door might jiggle and read as open so the lights might come on. I did that and eventually just turned the dome lights off so that they never went on even when the door was open.

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