My cold was working fine yesterday, today its blowing out super hot air.

What is your question?

I have a 2012 impala. Ive had it since march of 2018. The cold air was perfectly fine yesterday and all the days beforehand. I got in the car today with my 3 young children and its blowing super hot air instead of cold. The snowflake light is on. Not blinking. The car isnt making any new noises. What could it be then? I'm not sure about leaks. I've seen a couple drops from under the car didnt have no odor or color to it but not enough to leave a puddle. Thought it was normal to see that after driving for a couple hrs in 100 degree weather. Ive always seen other cars leave huge puddles. Really need the air to work having young ones. Please help!

What makes this problem better or worse?

Better to have the windows down and air turned off.

How long has your 2012 Chevrolet Impala had this problem?

Just started today