I got this car frome a car lot that i got other cars from but when i got this one it is a reall nice runing car all but for the lite on the dash that comes on and stays on and causes the transmission to shift hard enought it feels like clunk is the only way i can put it and when i took it to the chevy dealer they couldnt pull up a code to say what it was this dam thing says track off and when it comes on it gos clunk then it trys to shift then they want 800.00 to fix it so i cant find out what it is or how to fix it with out paying a arm and a leg so if any one else has had the same problem pleas let me know