It is in your handbook.
Turn key to position 2 and immediately press the adjustment button twice within the space of 1 second, within 10 seconds turn the key to 0 position, press and hold adjustment button, turn the key to position 2,keep the button pressed the last service indicator remains in the display,an acoustic signal will sound after 10 seconds, release the button.done. (straight from the book)
ChicksFan, July 2010
