Everytime I make a hard turn, I hear a grinding noise and it "jumps" a little and the traction control light illuminates for a minute. I turn the traction control off and it's fine until the next time I start it up and go. Then the other day, my stabilitrac and engine lights came on and my car was "jumping" in the front end like i was pressing and releasing the brakes real hard, which I wasn't, took it immediately to the Chevy dealership and nothing came up for a code so I drove away and the warning lights were off. I am actually scared every time I get into the car to drive it now thinking something major will happen while driving.