WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
Using a small flat-bladed tool, Remove the rear washer nozzle (2) from the liftgate.
Remove the rear washer nozzle (1) from the rear washer hose (2).