I have a single button model and I had to get creative to get mine to reset.
put the machine lights to low before I turn key
then turn to on but don’t start
Hold down the s button while on mph/rpm screen
do the hi low hi low hi low but stay on low
release s button and shut key off all wile still on low
wait for total shutdown
I couldn’t use the total milage/ OD or it would change my mph/rpm screen. I hope this is helpful