The bulb size is not mentioned in the user manual. Best way is to take it out to take a look. Here's how:
-Pull the middle knob out (Fan speed, I remember) you'll see a screw. Unscrew it then pry out the mid-console face with a flat plastic screwdriver/ or with your fingers. Be careful with the harness behind the control.
If you can disassemble the climate control box, you'll find the bulb.
Thanks for the response. When the center console is removed, does it just snap out from under the radio and above the shifter (automatic)? And what about the two other knobs, does it come out with the console?
I didn't end up taking the console out to find out because one day, the seemingly dead bulb came on. So, it's not dead but there's something else going on in there that I don't know. It lights up only occasionally. To this day, most of the time the light is out. Any other ideas would be appreciated.
That's incorrect. I checked one of the dealers in San Diego, CA and each one of those tiny bulbs are $10.00 each. And trust me I asked twice. I'm pretty sure my 2006 Corolla had two bulbs. I never replaced them and I don't miss them, since they were burned out when I bought the car.
If you're talking about the HVAC lights, my 05 Corolla has two of them (green lights) The bulb is a neowedge type B if I remember correctly (base is 10 mm) I recently bought a few from autoillumination.com but they haven't come in yet, hope that helps