I am having an issue with the door locks in my 2008 G35.

When I use the handle button, key fob, or inside switch the front driver will unlock, but the other doors will sometimes unlock or sometimes will not unlock. Has anybody had this issue and what was your solution. The dealer said it could cost up to $600 per door!!

 

have you checked the settings under convenience menu for selective unlock option? given that you are having battery drain issues as you stated in another post it could be that settings are reset once the battery loses charge. worth a try.