2003 Honda Civic Owner's Manual - Page 214

Windshield Washers Check the level in the windshield washer reservoir at least monthly during normal usage. In bad weather, when you use the washers often, check the level every time you stop for fuel. The windshield washer reservoir is located behind the driver's side headlight. Check the reservoir's fluid level by removing the cap and looking at the level gauge attached to the cap. On Canadian models LEVEL GAUGE When you refill the reservoir, clean the edges of the windshield wiper blades with windshield washer fluid on a clean cloth. This will help to condition the blade edges. Do not use engine antif reeze or a vinegar/water solution in the windshield washer reservoir. Fill the reservoir with a good-quality windshield washer fluid. This increases the cleaning capability and prevents freezing in cold weather. Antif reeze can damage your car's paint, while a vinegar/water solution can damage the windshield washer pump. Use only commercially-available windshield washer f luid. The low washer level indicator will light when the level is low (see page 66 ). Maintenance 213