I STAND CORRECTED!!!

I am so used to getting into the car and flipping the ww switch that when I read this I just jumped in saying "turn on and off."

When in reality, what I do when I get into the car is to turn it "off and then on." It would be so much better to me if I could just leave it in intermittent position and it will turn on the rain sensor whenever the key is on.

But my point was that the "automatic" ww washers will not come on - until you manually turn it on - just leaving them in the intermittent position will not do it.

I get the confirmation wipe but it never did a second wipe. Even on the rainy days ;)

Your rain sensor may get malfunction or get air in.