Sunroof Switch
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
The sunroof switch assembly is located on the headliner above the rearview mirror and is used to command the sunroof to open and close.