Ask a Technician: How do I know if I need new wiper blades?

In severe weather conditions, whether or not your vehicle is safe could depend on how functional the rubber windshield wiper blades are on your vehicle. Read on to learn if it is time for you to purchase a new set of wiper blades from our team at Sheehy Nissan of Glen Burnie.

When do you need new windshield wiper blades?

Worn-out wiper blades usually remind you they're wearing out by the sound that they make. If during operation you hear an annoying "squeak" every time they "swish," it's time for new wiper blades. A rubber windshield wiper that's cracked can't keep your windshield clear during wet weather conditions and this increases your risk of having an accident. Additionally, if the rubber wears off and any part of the metal wiper hits the glass, your windshield could be damaged.

How often should rubber blades be replaced?

Inspection of your vehicle's rubber wiper blades should be a part of every regular maintenance inspection. You don't want to have to pull your vehicle over during a downpour or snowstorm just because you can't see out the windows. A better strategy is to regularly check their condition and either have them replaced during a service appointment at your dealership, or change them yourself. Just be sure to check your vehicle's operating manual for the right replacement size.

Should you replace windshield wiper blades yourself?

If you are car savvy and accustomed to doing small DIY projects on your car, changing the wiper blades isn't a difficult task if you purchase the correct replacement. After reading the directions on the package, clean the glass windshield to remove any debris and to make the surface smooth. Replacement wiper products sometimes recommend applying glass treatment to the windshield. This step improves the effectiveness of the new blades.

What is the evolution of wiper blades?

For decades, car designs have changed radically while the standard design for wiper blades hasn't. The first real evolution to come along beyond a single wiper blade was the two-blade design with wings during the 1980's. Eventually, other designs incorporated even more wiping edges within one rubber strip. However, problems arose on multiple edged wipers because their design allowed too much space for ice and snow to clog the wiper action and they stopped working when drivers needed them most.

What about new contoured windshield blade designs?

Enter the contoured, frameless wiper blade. This innovative design has a benefit standard rubber blades don't have-even pressure over the entire blade surface. When wiper blades wear evenly there's no more premature failure of the blades due to worn edges. This design also prevents ice build-up between the rubber wiper blade and the metal frame. You don't have to worry about them freezing if you find yourself driving in below freezing temperatures. Contoured, frameless windshield wipers are now standard on many new car models.

You don't want to ignore this small, inexpensive item that can make a big difference when you must drive your car during bad weather conditions.