The driver's storage compartment is located near the left side of the steering column on the bottom of the instrument panel. Pull the cover down to open.
Chevrolet Cobalt Service & Repair Manual. Brake Drum, Reface
Caution: Avoid taking the following
actions when you service wheel brake components: Do not grind brake linings.
Do not sand brake linings. Do not clean wheel brake components with a dry
brush or with compressed air.
Caution: Some models or aftermarket
brake compo ...