1996 Buick Regal Owner's Manual - Page 251

Brake Wear Your Buick has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go orbe heard all the time your vehicle is moving (except when you are pushing on the brake pedal firmly). Some driving conditions or climates cause a brake may squeal when the brakes arefirst applied or lightly applied. This doesnot mean something is wrong with your brakes. Free movement of brake calipers and properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake calipers wear, and evenly torque for movement, brake pads for wheel nuts in the proper sequence to GM specifications. Brake linings should always be replaced as complete axle sets. A CAUTION: The brake wear warning so I means that d sooner or later your brakes won't work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced. I 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 I NOTICE: Continuing to drive with worn-out brake pads could result in costly brake repair. Every time you apply the brakes, with or without the vehicle moving, your brakes adjust for wear.