Went to dealer and they said it was a bad H-valve. A.K.A HVAC valve. left with ice cold air front and rear.
If anyone is having problems with warm air in dash and still has cold in 2nd and 3rd row this could also be your problem!!!

 

Reverse that an i'm in the same boat, cold in front an cool in back, but doesnt really matter to me no one rides in the back besides my tool's

 

Thanks! Where is this valve, and how does one replace it?

 

bump