1. Make sure that the problem causing the check engine light to come on has been fixed. If not, resetting the light will only cause it to come back on again.
2. Turn the ignition key to the "ON" position, but do not start the engine.
3. Locate the diagnostic connector under the dashboard, usually near the steering column. It's a small, usually black, plastic connector with a cover.
4. Remove the cover from the diagnostic connector.
5. Connect a code reader or scanner to the diagnostic connector.
6. Follow the instructions on the code reader or scanner to reset the check engine light.
7. Disconnect the code reader or scanner from the diagnostic connector.
8. Start the engine and check to make sure that the check engine light has been reset.
If the check engine light does not reset, or if it comes back on again soon, there may be a more serious problem with your vehicle that requires professional diagnosis and repair. In this case, it is recommended that you take your car to a qualified mechanic for further inspection.
