In hopes of making the internet just a little bit more efficient, here is a direct link to the Mavic manual.
I bought a Mavic cyclocomputer for my bike. It keep track of my mph, miles ridden, & cadence. It stopped working suddenly, so I reset it. It took one hour to find the manual online. Mavic is notorious for having bad online resources and customer support. This will work if your bike computer looks sorta like these pics.