Don't buy from autonation

Today I learned never to buy a used car from autonation Chevrolet. My car is only 15 days old from their lot and when I find out that something major is wrong with the car, I take it back to them in hopes they would resolve the issue. Sad to say, they told me the warranty I purchased don't cover the parts or labor. This is robbery in its highest form. They wanted me to pay 847 dollars to fix the car. 

The lesson I learned is autonation is no different from the other car lots pushing junk off to people