Quick Answer
Replace your windshield wipers when they start to streak, skip, chatter, squeak, leave unwiped areas, or show cracked, split or hardened rubber. Many sources suggest a general range of about every 6 to 12 months, but how the blades actually perform matters more than the calendar. If visibility is getting worse in rain, it is a good time to check them.
Signs Your Wipers Need Replacing
Streaking or smearing
Lines or a hazy film left after a swipe often mean the wiping edge is worn, hardened or damaged. Dirt on the blade or glass can cause it too, so clean first (see below).
Skipping or chattering
If the blade jumps or bounces across the glass instead of gliding, the rubber may have taken a permanent bend or hardened. A bent frame, a dirty windshield, or a problem with the wiper arm can also be responsible.
Squeaking
Occasional noise on a nearly dry windshield is common. Persistent squeaking while the glass is properly wet can point to worn or hardened rubber, or residue on the glass.
Cracked, split or torn rubber
Carefully lift each arm and look at the rubber edge. Cracks, tears, missing pieces, or rubber separating from the frame mean cleaning will not help. Replace the blade.
Unwiped areas
Patches that stay wet on every pass suggest the blade is no longer following the curve of the glass. This is especially important if the patch sits in your direct line of sight.
Visibility has gradually gotten worse
Wear is often slow. More glare at night, water lingering in your view, or slow clearing of road spray are all reasons to inspect the blades even if nothing looks dramatically wrong.
How to Inspect Your Wipers at Home
- With the car off, lift each wiper arm away from the glass (support it so it cannot snap back).
- Run a finger gently along the rubber edge. It should feel smooth and flexible, not rough, nicked or stiff.
- Look for cracks, splits, or rubber peeling from the frame.
- Check that the frame or beam is not visibly bent and the blade sits flat against the glass.
- Run the wipers with washer fluid and watch for streaks, skips and missed areas.
- Do not forget the rear wiper if your car has one.
Try Cleaning First
Before buying new blades, wipe the rubber edge with a cloth dampened with washer fluid or a mild cleaner, and clean the windshield. If streaking or noise goes away, the blades may have a bit more life left. If the problem comes back quickly, replacement is usually the better option.
When It Might Not Be the Blades
- Washer fluid: Low fluid or clogged nozzles can make wipers seem to perform poorly.
- Windshield contamination: Road film, tree sap or wax residue can cause smearing and squeaking.
- Wiper arms: Weak arm tension or a bent arm can cause skipping even with new blades. A mechanic can check this.
- Wrong blades or installation: Incorrect size or a poorly seated blade can cause streaking.
Good Times to Check or Replace
Many drivers inspect their wipers at the start of spring and fall, or before the rainy or snowy season. Wipers are also on the road trip car inspection checklist. Hot sun, freezing temperatures, ice and road salt can all be hard on rubber. If your blades are already worn, replacing them before winter is sensible. For general intervals, see our wiper replacement schedule.
Wipers and Vehicle Inspections
In some regions, wiper condition is part of a periodic vehicle inspection. In the UK, for example, MOT testers check that wipers operate and give the driver a clear view, so blades in poor condition can be a problem. Requirements vary, so check the rules where you live.
Help With Installation
Many auto parts retailers and service centers sell wipers and can show you how to fit them, and some offer installation. Policies differ by store and change over time, so confirm before you go. Fitting wipers is often a simple DIY job. Make sure you buy the right size, and consider replacing both front wipers together. If you are unsure about styles, read about windshield wiper types.
FAQ
How long do windshield wipers last?
It varies with climate, use and blade quality. A common rule of thumb is roughly 6 to 12 months, with some lasting longer and some wearing out sooner.
Can worn wiper blades fail an inspection?
They can in places where inspections check wiper condition, if the blades do not clear the screen properly. Check your local requirements.
Do new wipers streak sometimes?
Yes. A dirty windshield, residue from wax or treatments, the wrong size, or a poorly seated blade can cause streaks. Clean the glass and recheck the fit before assuming the blade is faulty.