The Doorsills are held in place with 6 clips. To remove the doorsills, you will need to start at one end and release each clip. I started at the front end of the door sills and worked my way back.
Use an Interior Trim Removal Tool to un-dock each clip. If you have one with a V shape on the end, you will be better off as you can get on each side of the clip.
Slowly work your way to the other end and the door sill will be removed.
The back of the doorsill looks like:
With the doorsill removed, you can install the new doorsill. Installation is simple, simply line up the clips with their respective holes and push down until the clips dock.
