How often should I replace wiper blades?

Every 6–12 months, or whenever they streak, skip, or leave smears. Sun and ice are hard on rubber.

Why do my new wipers still streak?

Clean the glass thoroughly first — wax, road film, and grime cause streaking even with new blades. Wiping the rubber edge with alcohol can help too.

Home › DIY Guides › How to Replace Windshield Wiper Blades

Maintenance · Beginner · 5–10 minutes · Updated June 1, 2026

If your wipers streak, skip, or chatter, new blades fix it instantly and cheaply. The hardest part is just getting the right size.

Most cars use two different lengths for the driver and passenger sides — check both before you buy.

Find your blade sizes
Use the in-store size guide, your owner's manual, or measure each blade. Note that the two sides are often different lengths.
Lift the wiper arm
Pull the wiper arm away from the windshield until it locks upright. Lay a towel on the glass in case the arm snaps back.
Release the old blade
Find the small tab or clip where the blade meets the arm, press it, and slide the old blade off the hook.
Attach the new blade
Slide the new blade onto the arm until you hear it click into place. Give it a gentle tug to confirm it's locked.
Lower the arm gently
Ease the wiper arm back down onto the glass so it doesn't slam. Repeat for the other side.
Test with washer fluid
Spray washer fluid and run the wipers to confirm a clean, streak-free wipe.

Get a real, certified mechanic on a live video call to walk you through your specific car, step by step — no shop visit needed.

How often should I replace wiper blades?: Every 6–12 months, or whenever they streak, skip, or leave smears. Sun and ice are hard on rubber.
Why do my new wipers still streak?: Clean the glass thoroughly first — wax, road film, and grime cause streaking even with new blades. Wiping the rubber edge with alcohol can help too.