car seat covers

I have a 2017 Toyota Corolla S bought used at 32k miles at the Toyota dealership. I just hit 80k miles and I noticed the drivers seat seam is ripping.. I heard there is some type of warranty possibly but not sure if I’m eligible because of the mileage on the car? Does anyone know how to get info...

I have a 2015 Corolla LE. Can anyone recommend good quality front and back seat covers that are waterproof (I have a toddler), that aren't crazy expensive and you can use all three seat belts in the back? I have purchased several and none fit right.