Hi, my first posting!
My passenger side Pillar trim keeps coming off - I'm talking about the large plastic cover around the pillar on the interior. Inside I see a white clip in the middle and a black location clip at the end, but the more I push it in the more it won't stay put.
What I was really hoping for was a tip or photo or manual (!) helping me to fit it back...

 

My driver's side did the same. I had a bad day at work one day and lost my rag with it when it came off one time too many. I gave it a mighty thump and a barrage of foul verbal abuse and it has never come off since.