How do you reset service light of Volvo v70 1998?

To reset the service light on a 1998 Volvo V70, insert the key into the ignition and turn it to the "II" position without starting the engine. Press and hold the trip odometer reset button on the dashboard, then turn the key to the "0" position and back to "II" while continuing to hold the button. Release the button after a few seconds; the service light should turn off.