pontiac vibe

Hi, my car started beeping at me today when I opened the driver's side door like I left the key in or the lights on. It doesn't do this when the car is turned on and it doesn't beep when I open any of the other doors. Additionally, when I went to lock the car, it wouldn't allow me to do so with...

I have a 06 Pontiac vibe and radiator fan runs fast but when I turn the defrost on it starts going even faster and makes it sound like jet. It has also started causing the power to bog down every once in awhile. Any suggestions on what to do something is going to break if I don't get this fixed soon