Service Interval Indicator System

Service Interval Indicator System (SIA)

Purpose of the System

The Service Interval Indicator System is designed to alert the driver when the vehicle is due for service. Recent advances in the materials used in engine construction along with low emission engine management systems and the use of high performance synthetic oils have increased distance between services to approximately 15,000 miles.

The Service Interval Indicator System helps to reduce the confusion and inconvenience of computing maintenance intervals based only on mileage. Rather, the intervals are based on the owners specific driving style.

When the SIA determines the time for a service that is necessary, it displays the service (Oil Service or Inspection) in the instrument cluster and remains displayed until the system is reset and a countdown for the next service is started.