Originally Posted by satcomtim
Tim, which button are you talking about? There are 3, 2 in front and 1 in the rear.
That should be two map lights and one dome light control. The dome light control looks like the one on the left in this picture:
blank102 - If you had an "off" button for the dome light and/or your off button looked like the one on the right in this photo, or similar, then the trick with the genies probably doesn't apply to your car.
There appears to be multiple different dome light switch configurations within the 2012 model, and that doesn't even take into account the "moonroof/no moonroff" question.