Genuine plastic fake wood trim is falling off the interior of my'10 coupe and it seems to be happening all at the same time , first the driver door then the passenger door, now just above the glove box. What gives, The heat? I haven't used any solvents or cleaning agents . It seems a coincidence that it's happening all at the same time.

No ideas? I took it to the dealer and they ordered new trim pieces but didn't have any explaination for it.