Checking Radiator Cap
WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the radiator cap.
NOTE:
Thoroughly wipe out the radiator filler neck to remove any waxy residue or foreign material.
- Replace the cap if deposits of waxy residue or other foreign material are on the black rubber gasket or the metal retainer.