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.