A: Removal

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Remove the front bumper face. < Refer to FRONT BUMPER FACE , REMOVAL, Front Bumper. >
Remove the screws (A) from the backside of the bumper face.
Detach the tabs (B) and remove the front grille assembly.

Fig 1: Locating Bumper Face Screws And Front Grille Assembly Tabs
Courtesy of SUBARU OF AMERICA, INC.