I have a 2006 Dodge Gran Caravan with the same problem. I recalibrated as indicated above, same problem. I then read on another site a different solution. This worked. I disconnected the negative battery cable and let the the car stand for about 40 to 60 minutes . This allowed the capacitors to completely drain of any residual power. At least this is my assumption. I then reconnected the negative cable to the battery, started the car, turned on the heater/AC control, turned the indicator to defrost and like magic it all works now.