First we asked the dealer to replace all the blades, front and rear.
They only did the front.
Then while getting the tires rotated at an independent shop, we asked them to change the rear blade.
They said they did, but it was not on the bill.
When I looked at it later that evening, I noticed they went to pry the cover off, and broke it.
They gave up and left it like that.
I was able to snap it back in, but it's still cracked from them prying it up.
I called back, and asked whey they didn't replace it.
He said they went to, but the part was back ordered.
I told him I think they went to do it, and they broke it!
He said he'd call me back when the part came in, and they would replace it.
Never heard from them again.
I'll have to give it a try myself.