Where I can find the keypad code on a 2010 ford f-250 super duty lariat?

I bought the truck. But the dealer didn't have that code.

The owner's manual should show you how to reset that code.

The owners manual didn't come with the truck:/

Try this. The module and sticker is behind the passenger kick panel
http://www.justanswer.com/ford/3sz1r-just-bought-2008-250-crew-cab-keyless-entry.html

When you pull this module out there's a sticker on the back with the factory 5 digit code. Once you have that code, you can then, per the owners manual program a second code you know off the top of your head. Also, per the owners manual, you use the factory code, then press a sequence of buttons and it will clear out all previous codes entered by a previous owner.