So I just bought a used 2007 Avalanche from a dealer. I've been driving it for 3 weeks and the Stabilitrak/ traction control service lights are on now along with the check engine light. I've read several things and have been told different ways to fix it such as replacing the OnStar computer or that I may be able to return the vehicle under the Lemon Law all, which I know nothing about. After reading all of these things, This is so overwhelming and stressful because I haven't even made my first payment. I don't even have a warranty on the vehicle. I surely cant afford to put it in the shop and have them go through all of these issues and be without a vehicle. Suggestions?

 

Idle positioning sensor change that ull b all set