Door panel comes off then armrest is detached from it via some hidden screws on the back then it comes out
It's not a bub it's a soldered LED iirc. The switches are all on one long module box thingie, PCB inside, not separate
Depending on your skills and level of enthusiasm, might be better to buy a new set of switches or just leave it alone.
PS actually, wait, there's 2 or 3 sections to that switch module... don't remember if the one you need is separate or not, though. Might be in the big cluster with the window controls