How do you reset engine light 2007 Mazda 3 after oil change?

To reset the engine light on a 2007 Mazda 3 after an oil change, you can use the following steps: Turn the ignition to the "ON" position without starting the engine, then press the gas pedal three times within five seconds. This should reset the oil change light. If the engine light remains on, you may need to check for any underlying issues or use an OBD-II scanner to reset the error code.