Rain Sensing wipers

[ard]

Originally Posted by JCL

They reset to off so that you don't scratch the glass if it isn't raining when you come back.

Spot on.

Originally Posted by VNYD DOG

Man I don't know what kind of wipers you use in Canada but here in California I'm pretty sure my rear wiper made of rubber isn't going to scratch my glass if it were activated while glass is dry..

Spot off.

Dirt and grit can collect once the car is parked, the rain stops and sun (and pollen and dirt and whatever) come back out.

A dry wiper with grit on the blade or glass CAN CERTAINLY scratch.


Love OPs that join, post once, gone forever....

But for the OP, I would ask "did the prior owner replace the windshield? (with the wrong kind of glass)"