2020 Nissan Altima Windshield Wiper Size

Alright, let's talk windshield wipers for your 2020 Nissan Altima. It might seem like a minor detail, but having the correct wiper size is crucial for safe driving, especially in inclement weather. A poorly sized wiper can leave streaks, miss sections of the windshield, or even damage the wiper arms and glass. So, getting this right is important.

Understanding Wiper Blade Terminology

Before diving into the specifics for your Altima, let's clarify some common terms you'll encounter:

Wiper Blade: This is the rubber part that actually contacts the windshield and removes water, snow, or debris.
Wiper Arm: The metal arm that extends from the wiper motor and holds the wiper blade.
Wiper Linkage: The mechanism that connects the wiper motor to the wiper arms, translating rotary motion into the back-and-forth sweep.
J-Hook: A common type of wiper arm attachment where the blade has a hook that latches onto the arm. The 2020 Altima utilizes a J-Hook attachment.
Beam Blade: A modern wiper blade design where the rubber blade is integrated into a spring steel beam that distributes pressure evenly across the windshield. These are often preferred over traditional framed blades.
Framed Blade: A traditional wiper blade with a metal frame that holds the rubber blade in place.
Hybrid Blade: A combination of beam and framed blade technologies, offering some of the benefits of both.

The Correct 2020 Nissan Altima Windshield Wiper Sizes

For your 2020 Nissan Altima, you'll need two different wiper blade sizes:

Driver Side: 28 inches Passenger Side: 17 inches

It's absolutely critical to use these specific sizes. Using a wiper blade that's too long on the driver's side can cause it to hit the A-pillar or overlap with the passenger side wiper, causing damage and inefficient cleaning. A blade that's too short will leave a significant portion of the windshield uncleaned.

Why Different Sizes?

The reason for the different sizes is due to the curvature and layout of the Altima's windshield. The driver's side needs a longer blade to effectively clear the larger area directly in front of the driver's field of vision. The passenger side has a smaller area to cover, necessitating a shorter blade.

Finding the Right Wiper Blades: A Practical Guide

Now that you know the correct sizes, how do you go about finding the right wiper blades?

Owner's Manual: The easiest and most reliable method. Your 2020 Altima owner's manual should list the correct wiper blade sizes in the maintenance or specifications section. Always double-check the manual.
Online Retailers: Websites like Amazon, RockAuto, and Advance Auto Parts allow you to enter your vehicle's year, make, and model, and they'll display compatible wiper blades. Pay close attention to the product descriptions and reviews to ensure a proper fit.
Auto Parts Stores: Local auto parts stores like AutoZone, O'Reilly Auto Parts, and Napa Auto Parts can assist you in finding the correct wiper blades. They often have lookup tools that allow you to search by vehicle. Their staff can also help verify the fit and even install the blades for you (sometimes for a small fee).
Wiper Blade Size Charts: Many wiper blade manufacturers (like Bosch, Rain-X, and Trico) provide online size charts that you can consult.

Important Note: When purchasing wiper blades, be sure to verify that they have the correct attachment type for your Altima. As mentioned earlier, the 2020 Altima uses a J-Hook attachment. Most aftermarket wiper blades will come with adapters to fit various attachment styles, but it's always best to confirm before buying.

Choosing the Right Type of Wiper Blade

Beyond size, you'll also want to consider the type of wiper blade.

Framed Blades: These are the traditional type, and often the least expensive. They consist of a rubber blade held in place by a metal frame. While they can be effective, they are more prone to ice buildup and uneven pressure distribution, which can lead to streaking.
Beam Blades: These are a modern design that uses a spring steel beam to distribute pressure evenly across the windshield. They are generally more durable, perform better in winter conditions (due to less ice buildup), and provide a cleaner wipe. They tend to be more expensive than framed blades. Beam blades also have better aerodynamics at higher speeds, reducing wind lift.
Hybrid Blades: These combine elements of both framed and beam blades. They have a frame for support, but also incorporate a more aerodynamic design. They often offer a good compromise between performance and price.

For the 2020 Nissan Altima, beam blades are generally considered the best option due to their superior performance and durability. They are more resistant to streaking and ice buildup, providing better visibility in all weather conditions. However, framed blades can be a suitable option if you're on a tight budget.

Replacing Your Windshield Wipers: A Step-by-Step Guide

Replacing your windshield wipers is a relatively simple task that most DIYers can handle. Here's a general guide:

Preparation: Park your car on a level surface and turn off the ignition. Gather your new wiper blades and a soft cloth or towel.
Lift the Wiper Arm: Gently lift the wiper arm away from the windshield. Be careful not to let the arm snap back against the glass, as this could cause damage.
Remove the Old Blade: Locate the release mechanism on the old wiper blade. This is usually a small tab or button that you need to press or squeeze to release the blade from the J-Hook. The exact mechanism can vary slightly depending on the brand and style of wiper blade, so refer to the instructions that came with your new blades if needed. Once the release is activated, slide the old blade down and off the J-Hook.
Install the New Blade: Align the new wiper blade with the J-Hook. Ensure you've installed any adapters (if required and included with the blade). Slide the new blade onto the J-Hook until it clicks or locks into place. Make sure it's securely attached.
Lower the Wiper Arm: Carefully lower the wiper arm back onto the windshield.
Repeat on the Other Side: Repeat steps 2-5 for the other wiper blade.
Test: Once both blades are installed, turn on your ignition and test the wipers with windshield washer fluid to ensure they are working correctly and clearing the windshield effectively.

Pro Tip: Before removing the old wiper blade, place the soft cloth or towel on the windshield where the wiper arm might contact the glass. This will help protect the windshield from scratches if the arm accidentally snaps back.

Troubleshooting Common Wiper Problems

Even with the correct wiper blade size and type, you might encounter some common issues:

Streaking: Streaking can be caused by worn-out wiper blades, a dirty windshield, or a contaminated wiper blade surface. Try cleaning the windshield thoroughly and wiping the wiper blade with a clean cloth. If the streaking persists, replace the wiper blades.
Skipping: Skipping occurs when the wiper blade doesn't make consistent contact with the windshield. This can be caused by a bent wiper arm or a worn-out wiper blade. Inspect the wiper arm for any damage and replace the wiper blades if necessary. Sometimes applying a specialized windshield coating can help reduce skipping.
Chattering: Chattering is a vibrating or noisy sound that occurs when the wiper blade moves across the windshield. This can be caused by a dry windshield, a contaminated wiper blade, or an incorrect wiper arm angle. Clean the windshield and wiper blade. If the chattering persists, consider adjusting the wiper arm angle (this is a more advanced task that may require professional assistance).
Smearing: Smearing happens when the wiper blades leave a film on the windshield. This is typically caused by wax or oil buildup on the glass or the blade itself. Clean both thoroughly.

If you experience persistent wiper problems, it's always a good idea to consult a qualified mechanic. There might be an underlying issue with the wiper motor, linkage, or wiper arms that needs to be addressed.

Maintenance for Longevity

To extend the life of your windshield wipers and maintain optimal performance, follow these tips:

Clean Regularly: Periodically clean your windshield and wiper blades with a mild detergent and water. This will remove dirt, grime, and other contaminants that can reduce their effectiveness.
Use Windshield Washer Fluid: Always use a quality windshield washer fluid. Avoid using plain water, as it can freeze in cold weather and damage the wiper blades and washer system.
Avoid Dry Wiping: Never use your windshield wipers on a dry windshield, as this can quickly wear down the rubber blades.
Inspect Regularly: Regularly inspect your wiper blades for signs of wear and tear, such as cracks, tears, or hardening. Replace them as needed, typically every 6-12 months.
Park Smart: When possible, park your car in the shade to protect the wiper blades from direct sunlight, which can cause them to dry out and crack.

By following these guidelines, you can ensure that your 2020 Nissan Altima's windshield wipers are always in top condition, providing you with clear visibility and safe driving in all weather conditions. Choosing the right size is the foundation; maintaining them properly ensures that investment pays off.