Winshield wiper doesn't clean lower half of drivers window

[Kyrral]

I changed the blade but the lower half is streaky. Causes and fixes. Is this something covered under warranty for my 2021 Performance?

 

[LoudMusic]

Are all the pivot points free to move as it sweeps across the window or are any of them binding?

It might be worth doing a good manual scrubbing of the window and wiper to make sure there's no unwanted goop present.

 

[PianoAl]

In wiper service mode, manually move the wiper across the windshield and see if you can notice the blade not pressing evenly on the glass. Then remove it and flex and bend it to fix the problem. Return blade to store if that doesn't fix it.

The wipers are covered by a 100,000 mile warranty. Sorry, couldn't resist.