Today it was cold here and I was on the highway. Here is what I noticed. The Temp outside was 6* cent, and I put the control on 24*C. I heated the inside upto like 15 minutes and then cool air started coming from the front vents, I raised the controls to 26*C and after that it was warm air, which came from the vents throught out the length of my drive.
What looks like is that the there is some sensor setting which has raised the temprature. Looks like at 24*C, the sensor thinks that the car is hot and would raise the cooling but at 26*C settings it behaves as the car is cold and would continue maintaining a comfortable temperature. Also, please note that this was during the night, so bright Sun had no role to play in this.
Thanks