Stuck Climatronic Menu Button

Hi all. My Climatronic menu button sticks and it is driving me crazy. It takes a lot of effort to press it and then it does not return to the position immediately but stays pressed for a couple of minutes. I want to open it up to check if there is debris and clean it out but not sure how to, don’t want to break it. Does anybody know how do I remove this button? Should I just pry it with something or should the whole panel come off?