Originally Posted by cashs mom
The heat and defroster controls on the 66 are a little wonky. The heater is the lever on the left, the defroster is the lever on the right and the center controls temp. The slide at the top controls the fan speed as I remember.
Yes, they are a bit odd. It's even worse on the 65, since they switched the fan speed switch mid-year. One of our cars goes Low Off High, and the other is Off Low High.