Resetting the maintenance light on a Toyota Corolla is typically a straightforward process. Usually, you'll need to turn the ignition to ON without starting the engine and then navigate to the "Trip A" on your odometer. Turn the ignition OFF, then hold down the trip reset button while turning the ignition back ON. Keep holding the button until the light resets. It should only take a few seconds. Have you tried this method already, or is there a specific model year you're working with? Let me know if you need further steps!