Did mine today on the first try. I was amazed.

1. Pushed and held the switch in while turning back and forth about ten time to clean the contacts.

2. Turn the key to on and waited about two seconds for the computer to boot.

3. Pushed the switch twice quickly. Service mileage popped up.

4. Turned the key off.

5. Held in the switch while turning the key back on and 7000 miles to go.

I think the key is to have clean contacts and hit it twice quickly, but not in the first second.