Toyota Avalon persistent VSC light and check engine light issue resolved by replacing VSC steering sensor on Toyota Avalon

Some Toyota Avalon owners report experiencing persistent VSC (Vehicle Stability Control) and check engine light issues, which can be triggered by various engine problems that disable the VSC system. These warning lights often illuminate together, indicating a more serious underlying issue that requires attention. Additionally, the operation of the VSC system relies on the engine's computer, meaning that a check engine light can directly affect VSC functionality. Some owners find that resolving the root cause of the VSC issue can clear both warning lights, including the TRAC OFF light, without needing further diagnosis. Regular maintenance checks, such as inspecting battery terminals for corrosion, are recommended to prevent false codes and related issues. While replacing the VSC steering sensor may help address these problems, a thorough diagnosis is crucial for ensuring optimal performance and safety in the Toyota Avalon.