CTS-V V8-6.0L VIN U (2006)
5. Adjust the sunroof window. Refer to Sunroof Window Height and Opening Fit Adjustment.
6. Connect the sunroof panel side opening closeout covers (2) to the sunroof window clips.
7. Snap the sunroof panel side opening closeout covers into the sunroof window retention clips.
8. Close the sunshade.
9. Cycle the sunroof window to ensure proper operation and fit.