I paid Hendricks Chevrolet in Hoover Alabama to fix the car. They told me it was the TCM that caused the stabilitrack light to come on. We paid 2400 to replace the TCM and a month later the stabilitrack light came on again. I took it back to the dealership and they said it was the negative battery cable. I paid 500 for that and a month later it came back on again - and now they are saying it's the wiring harness which cost 3000 to repair. I told them not to fix it, I don't have money to pay mechanics to guess.