1. Turn the ignition switch to the "ON" position, but do not start the engine.
2. Press and hold the "SERVICE ENGINE SOON" button for approximately 10 seconds.
3. The service engine light should then turn off.
4. Turn the ignition switch to the "OFF" position.
If the service engine light does not turn off after following these steps, you may need to have the vehicle's computer scanned for trouble codes. This can be done by a qualified mechanic or auto parts store.