I have the rarely seen digital climate control on a 91 LS wagon and half of the bulbs work. Because this unit works perfectly, I'd rather not make it mad because I decided to remove it just to replace some bulbs. But... can this be done easily (or relatively easily)? The digital LED display that shows what the temperature is set at works fine, I just want to change the little bulbs.

I'm sure you can replace the bulbs, but not sure how difficult it is going to be. Removing the manual climate control unit you need to remove the plastic trim around the dash. Probably the same for the automatic one.