We have replaced the battery in the vehicle and in the Key FOB. My mother in law has since unlocked and started the vehicle. Today she went to drive it and the vehicle will not start. The alarm light (the one with the car and lock symbol) is flashing along with the battery light. Does anyone know what is happening? i am overseas and am not able to be there as she and her brother in law try to trouble shoot it. Sounds like it is something simple, but I cannot tell. He just wants to disconnect the battery and reconnect it. He already tried jumping it (which may have compounded the problem).