I don't want to take the car to the dealer for something stupid so any help would be appreciated. We have a 2008 Acadia and the 115V rear power outlet does not work. I read through the owner's manual and I did not see that there was any switch that needed to be flipped or whether the screen had to be down, DVD screen on, rear radio controls activated etc. I also checked the fuse panel and there were no problems there. Am I missing something or does it just plain not work? Any help would be greatly appreciated. I don't want to go in and have them tell me it doesn't work because it is not turned on. I am pretty mechanically adept and for the life of me can't figure this one out.