How is the service reminder indicator reset on a Volvo S40 2002?

To reset the service reminder indicator on a 2002 Volvo S40, first, turn the ignition key to the "II" position without starting the engine. Then, press and hold the trip meter reset button on the instrument cluster. While holding the button, turn the ignition key to the "0" position and back to "II." Continue holding the button until the service reminder indicator resets and the display shows the new interval. Release the button, and the indicator should be reset.