Have Toyota Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.
Most likely when the knob or control panel was molded at the plastics company there was some splay or flashing that was not corrected and this is why it is binding. I suggest you utilize your warranty and have the climate control panel replaced rather than trying to fix it yourself possibly causing more damage.
Prior to completing the mandatory rating at the top of your screen. Let me know if I have not yet provided you with ~5 STAR EXCELLENT~service. Reply and let me know in more detail what you need to be pleased with my help.
Hello again Chris here,