2004 Buick LeSabre Owner's Manual - Page 275

Notice: Brakes Brake Fluid • When using concentrated washer fluid, follow the manufacturer's instructions for adding water. • Don't mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water doesn't clean as well as washer fluid. • Fill your washer fluid tank only three-quarters full when it's very cold. This allows for expansion if freezing occurs, which could damage the tank if it is completely full. • Don't use engine coolant (antifreeze) in your windshield washer. It can damage your washer system and paint. Your master cylinder reservoir is filled with DOT-3 brake fluid. See Engine Compartment Overview on page 5-12 for the location of the reservoir. There are only two reasons why the brake fluid level in the reservoir might go down. The first is that the brake fluid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. 5-37