So, 2011... the other two lights your talking about are in the roof headliner yes? If so, those lights are LEDs on a small printed circuit board mounted inside the headliner. Only way to replace them or change to a different color is to remove the headliner, remove the PCB and unsolder the LED and solder in a new one.

of course you have to have the correct LED and it's a big job!! I prefer to just get some window tint in the color you want and carefully and neatly cover the clear lens with it
On the 2010 and older, the lights are on the back of the front seats, they are LED as well, but they are much easier to get to and change... still, most peeps just end up going the color tint route
Hope this helps a little!