How to reset regular maintenance required 2007 volvoxc90?

To reset the regular maintenance required light on a 2007 Volvo XC90, turn the ignition to the "ON" position without starting the engine. Press and hold the trip odometer reset button (located on the instrument cluster) until the display shows "Resetting" or "Service Reset." Release the button, and the maintenance light should turn off. Finally, turn off the ignition and start the vehicle to ensure the reset was successful.