I ran into this problem when I first got my 07. I took it into service and they couldn't duplicate it.
Funny part was they called me the next day, said it was fine and to come pick it up. When I got there they explained they could not find a draw and that there was nothing wrong. They tested the battery and load tested it and all checked out. The service manager runs off to get it and... dead battery
They replaced the battery and I haven't had a problem since.
If you can... try a new battery.
Hope that helps.