I have just purchased a 2013 cc 2.0 turbo with 17" factory tires. I was having a real difficult time with tire spin and was cursing the tires. I soon realized that the traction control button when showing a yellow car and crooked lines appears on the instrument display, the traction control is on. But I was confused because it said off when lit. Without the traction control off (or on?) the car was very difficult to control on wet road. With it "activated" it was a whole totally different car. I am finding out more about this amazing vehicle every day. I love this car.