S80 L6-3.2L VIN 98 B6324S (2007)
Press in the button for at least 6 seconds. CAL should appear in the display.
Then drive at a maximum of 8 km/h in a circle (2-3 times) until the compass direction is displayed in the display again.
Press in the button for at least 6 seconds. CAL should appear in the display.
Then drive at a maximum of 8 km/h in a circle (2-3 times) until the compass direction is displayed in the display again.