Replacing worn windshield wipers can be a smart idea, but surprisingly few people remember to check them.

Out of all the vehicles passing through the 2005 National Car Care Month vehicle check events, close to one-fifth (17 percent) had front windshield wiper failures and 12 percent needed service on their rear wipers and or washer.

The normal life expectancy of wiper blades is six to 12 months, but blades should be replaced sooner if they begin to streak, jump or become dull, torn or brittle. Intense sun and heat, mixed with seasonal pollen and dust, can cause the rubber on the wiper blades to crack and deteriorate. A smeared or streaked windshield during a storm can hamper visibility and create a potentially dangerous situation.

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