WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Front Bumper Fascia Opening Cover
Courtesy of GENERAL MOTORS CORP.
Callout
Component Name
1
Front Fascia Lower Grilles (sides and center) Tip:
Use a flat-bladed tool to release the grilles from the fascia.