My daughters baby daddy killed my battery, so I made him change it out. I've been pissed at him ever since because my interior light, power windows and power door lock aren't functioning. I've read some other suggestions on other forums (brought to my attention by BD) that this is a "common" issue with G37s. Has anyone else had this issue? What did you have to do to fix it? Should I just take it to a shop?

 

Have you checked all the fuses to make sure it's not something simple?

 

I always check the simple things first.