Rear tailgate window latch won't open

We need to remove the trim panel and find out what is happening inside. However, I suspect the rod that controls the latch has come loose.

This is not uncommon on these vehicles. Here is a guide that will help with removing the panel. It is not for this rear hatch, but the process is basically the same.

https://www.2carpros.com/articles/door-panel-removal

Please see the info attached and let us know what you find. Thanks