Check the fluid level in the windshield washer reservoir at least monthly during normal use.

Check the fluid level by removing the cap and looking at the level gauge
On Canadian models: The low washer level indicator comes on when the level is low.
Fill the reservoir with a good-quality windshield washer fluid. This increases the cleaning capability and prevents freezing in cold weather.
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. Antif reeze can damage your vehicle’s paint, while a vinegar/water solution can damage the windshield washer pump. Use only commercially-available windshield washer f luid.
Fuel Line Inspection
Check the fuel system lines and hoses for damage, leaks, and deterioration.
Replace any damaged parts.
Check all clamps, and make sure they are properly positioned and tightened.
...
Reporting Errors
You can help to improve database
accuracy by reporting any errors you
encounter.
• Report errors in freeways and main
“verified” roads shown in black on the
map at http://mapreporter.navteq ...