Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required.
See Recommended Fluids and Lubricants.
Chevrolet Cobalt Service & Repair Manual. Air Inlet Grille
Removal
1.
Remove hood rear seal from air inlet
grille panel to remove it, Fig. 1.
2.
Remove wiper arms.
3.
Remove push pin fasteners in air inlet
grille panel, Fig. 2.
4.
...