I'm not sure if this is a normal function on the sonata or not. I have a 2016 Sonata SE withanual climate control. For some reason when I change the fan speed between 1 and 2 it will change mode selector. For example if I have front defrost selected and I switch fan speed down from 2 to 1 or 1 to 2 it will change the mode to something else and off of front defrost. This does not happen when changing from 3 to 4 or 4 to 3, only when in the 1 and 2 speed selections. If this is normal then it is a dumb design....please lete know if anybody has seen this.

I have verified the control module, resistor and blower motors are all working as they should.