2007 Chevrolet Cobalt Owner's Manual - Page 315

{CAUTION: The brake wear warning sound means that soon the brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced. Notice: Continuing to drive with worn-out brake pads could result in costly brake repair. Some driving conditions or climates may cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to GM torque specifications. If your vehicle has rear drum brakes, they do not have wear indicators, but if you ever hear a rear brake rubbing noise, have the rear brake linings inspected immediately. Also, the rear brake drums should be removed and inspected each time the tires are removed for rotation or changing. When you have the front brake pads replaced, have the rear brakes inspected, too. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment Every time you make a moderate brake stop, the disc brakes adjust for wear. If you rarely make a moderate or heavier stop, then the brakes might not adjust correctly. If you drive in that way, then - very carefully - make a few moderate brake stops about every 1,000 miles (1 600 km), so the brakes will adjust properly. If your vehicle has rear drum brakes and the brake pedal goes down farther than normal, the rear drum brakes may need adjustment. Adjust them by backing up and firmly applying the brakes a few times. 315