Help with 2010 GMC Sierra SLE
 

My last tech2 died about a year ago. I know you GM guys can help.....I have electronic climate control, it will blow cold then switch to outside ir and blow warm and humid for a while. I think it needs a blend door actuator and fresh/recircle door. Anyone tell me the replacement procedure? Also, drivers electric seat is binding, like it is stripped. Is this motor and track one singe unit? Is there a repair? Thanks!

If you can reach the blend door motor and hear it "clicking" - remove, separate case, clean contacts replace...should work fine again.
No help on seat.