CTS-V V8-6.0L VIN U (2006)
5. Install the rear compartment trim panel.
6. Clip the rear upper drain hoses (2) into position.
7. Secure the rear drain hose to the drain spout.The only suitable lubricant is clean water for the drain hose to drain spout installation.
8. Inspect for proper drainage.
9. Install the headliner (3) with an assistant.