how to change backup light on 2009 buick enclave. it is in tailgate. on 2009 Buick Enclave

Can't see how to get inside tailgate

Asked by for the 2009 Buick Enclave
The trim panel will need to be popped of to access the light fixture. It can be opened similar to removing the door trim panels. Will need to get a trim tool to aide in the removal.
Thank you for that, kind of worried that it may be fragile.
It should be in pretty good shape. Not tha old. Thanks for fixing your information. Happy Motoring.