So I get in my 06 ss/sc today and turned on my ac. The ax button will light up but the recirculation button doesn't work and upon further investigation neither does my defrost. Can anyone help me figure out what the problem could be? I've searched and searched all over the forums and can't find an answer among the many people asking this question. Thanks in advance!

 

If you have access to another hvac controller try that first.

 

Figured it out , it seems that the face of the HVAC was slightly loose and pulled out some , I pressed it in and it worked just fine, thanks for your help!