Well, I bought the rear valence from bluebatmobile and paid a tint shop to install it for me. However, they probably wrapped the vinyl too tightly around the edges near the license plate because it is starting to come off. What can I do to stick it back on?

Here are some pics:

 

Ya when i got mine done by Bluebat's guy, the corners by the plates were peeling. But it looks like they cut yours in 2 pieces? I can see white paint next to the plates, unless thats flash or something.

 

Yeah, that white part is just flash. What did you do to get it to stick back on?

 

He gave me a new one because his installer messed up. I dont know if theres much you can do, it shouldnt do that when installed correctly, but they probably stretched it out like you said.