See also:

Onboard Diagnostic System – OBD II
Your vehicle is equipped with a sophisticated onboard diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and automatic transmission control systems. ...

To Activate
Push the ON/OFF button. The Cruise Indicator Light in the instrument cluster will illuminate. To turn the system off, push the ON/OFF button a second time. The Cruise Indicator Light will turn o ...

Prepare A List
Make a written list of your vehicle’s problems or the specific work you want done. If you’ve had an accident or work done that is not on your maintenance log, let the service advisor know. ...