I bought my car brand new and about six months after owning it my check engine, hazardous roads and cruise control lights came on. this has continued to happen numerous times since. i have been told it's a sensor, mass airflow sensor. ocv valves and "maintenance" light. the problem has never truly been resolved and no one has been able to tell me what the root of the problem is. there have been times when service workers have just cleared the computer and sent me on my way.