A/c button 2006 grandprix.

With my 2006 grand prix i noticed the A/c button and the Rear defroster button seems to be hard to click sometimes having to click it multiple times just to get them on or off. Meanwhile the air circulatory button works fine. Any ideas how to fix this?

Sorry if this is in the wrong section i didn't know where to put this.

probaly should look around for a new HVAC unit to swap in there. The buttons are not spring loaded, just a plastic button thing underneath.
if that rubber gets worn it doesnt pop up as nice. Another idea is take it apart and clean it, that usually works.

Mine getting sticky after I don't use that button for awhile