Lucerne V6-3.8L VIN 2 (2006)
3. Install the cap on to the cooler line prior to cooler line installation.
Do not manually depress the retaining clip when installing the plastic cap.
Snap the plastic cap onto the TOC fitting.
4. Ensure that the plastic cap is fully seated against the fitting.
5. Ensure that no gap is present between the cap and the fitting.
6. Remove the drain pan from under the vehicle.
7. Lower the vehicle.
8. Inspect the fluid level and add fluid if necessary.