2007 GMC Acadia Owner's Manual - Page 420

Windshield Washer Fluid What to Use When adding windshield washer fluid, be sure to read the manufacturer's instructions before use. If operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. Adding Washer Fluid When the windshield washer fluid reservoir is low, a WASHER FLUID LOW ADD FLUID message will be displayed on the Driver Information Center (DIC). See DIC Warnings and Messages on page 244 for more information. Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 396 for reservoir location. Notice: • When using concentrated washer fluid, follow the manufacturer's instructions for adding water. • Do not 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 does not clean as well as washer fluid. • Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full. • Do not use engine coolant (antifreeze) in your windshield washer. It can damage the vehicle's windshield washer system and paint. 420