Replacing the front wiper blades on a 2020 Subaru Legacy is a quick DIY job that can be done in about 5–10 minutes. You’ll need the right blade sizes, a clean cloth, and a stable workspace to ensure a smooth, streak-free wipe.
What you’ll need
Before you start, gather the replacement blades and a few basic supplies. The Legacy typically uses 26-inch blades on the driver’s side and around 17 inches on the passenger side; confirm by checking the current blades or the owner's manual. If your model has a rear wiper, you may also need an 11-inch rear blade.
- Replacement wiper blades in the correct sizes (driver side around 26", passenger side around 17"; rear blade around 11" if applicable)
- Clean microfiber cloth
- Windshield cleaner or isopropyl alcohol (optional, for cleaning the blade and mounting area)
- Small flat-head screwdriver (optional, only if your blades use a screw-in or snap-in connector)
Sizes can vary by trim or aftermarket products, so verify with the packaging or Subaru’s parts diagram for your exact vehicle.
Step-by-step replacement
Follow these steps to install the new blades securely and minimize streaking.
- Turn the ignition off and set the wipers to park. Gently lift the blade away from the windshield until it stays upright.
- Locate the blade’s attachment on the wiper arm. Most blades on the Legacy use a release tab or a hook-style connector. Press the release tab or slide the blade to unlock it from the arm.
- Slide the old blade straight downward or away from the arm to detach it. For a hook-style arm, pull the blade down and off the hook.
- Compare the new blade with the old one to confirm the correct length and connector type. Remove any protective covers from the new blade.
- Attach the new blade to the wiper arm by aligning it with the connector and sliding it into place until you hear or feel a click indicating a secure fit.
- Gently lower the wiper arm back onto the windshield. Test the wipers with a small amount of water or windshield cleaner to ensure full contact and even wiping.
Be careful not to snap the wiper arm back against the glass, as the spring-loaded mechanism can cause damage if it’s jolted. If you’re unsure about the connector type, many auto parts stores can show you the correct blade and assist with installation.
Rear wiper (if applicable)
If your Legacy has a rear wiper, the replacement process is similar but uses a different blade size and connector. Prepare the correct rear blade and follow the same general steps.
Before replacing the rear blade, verify the blade length and connector type for your specific trim. A mismatched blade can cause poor contact or damage to the wiper arm.
- Rear blade length (commonly around 11 inches, but verify for your model)
- Rear blade connector type (snap-on or pin-type as specified for your vehicle)
Rear wiper replacement tends to be straightforward, but if you encounter resistance or uncertainty about the connector, consult the owner’s manual or seek assistance at a dealership or auto parts store.
Why replacing wipers matters
Clear visibility is essential for safe driving, especially in rain or snow. Worn blades can smear water and reduce your view of the road. Replacing blades regularly, typically every 6–12 months depending on climate and usage, helps maintain optimal performance.
Summary
Replacing the front wiper blades on a 2020 Subaru Legacy is a straightforward, time-efficient task that you can perform at home. By confirming the correct blade sizes, lifting the blade, releasing the connector, installing the new blade, and testing the result, you’ll restore clear vision without needing a service appointment. Always verify blade sizes on the current blades or in the owner’s manual, and consult a dealer or parts retailer if you’re unsure about the connector type.