I have a 2003 Santa Fe.  Recently I noticed the backlight on the heater/ac
panel was dark on one side.  Removing the panel, I found it has two small
light bulbs that insert into the back of it.  I thought they might be LED's,
but the working one gets too hot to be a LED, so I think they're just bulbs
with a blue rubber like coating on them, mounted on a plastic base with two
copper contacts.  The lamp and base attaches to the module from the back
with a quarter turn.

There are two bulbs, and when I swapped them, the dark area switched to the
other side, so it does appear to be a bad bulb.  There's no part numbers I
can find on the bulbs, and when I took the bad one into a local parts store,
they didn't have anything close.

I can't find anything on the HMAService web site, either (although that
doesn't mean the information isn't there).

Any suggestions would be appreciated.

Mike O.