Passenger side windshield/A Pillar

[DelSil]

My 2011 Explorer A pillar trim on the outside passenger side of the windshield is starting to come off near the top (see A2 in pic below). I tried to push it back in but I am assuming there may be a clip is missing or broken. Does anyone know if these are held on by clips and how to take them off? I asked a Ford dealer near me if my ESP would cover it but it does not because it falls under trim so it would cost me over $200 to have it fixed. I would like to do this myself if anyone has any advice, links, videos or pics. Thanks
https://sitebuilder.homestead.com/~site/builder/filePreview/A_pillar.JPG

 

[LukerDooker]

There is a dedicated thread for this, do a search on here and you will read aaaall about it.
There are also part numbers discussed and what clips are used.
G'luck.