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. ...

Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel filler cap is loose, improperly installed, or damaged, a loose gascap indicator will display in the EVIC telltale display area. Refer ...

Trip Conditions
Trip Odometer (ODO) / ECO (Fuel Saver Indicator) — If Equipped This display shows the distance traveled since the last reset. Press and release the right button (on the instrument cluster) to swi ...