I have a minor irritation since the last windshield installation - occasionally when I turn on the ignition/start the car the wipers will make one sweep on the clean dry windshield.
The sensor works well to control the wipers when it drizzles or rains, just don't like the sweep on a dry windshield.
I'm guessing that the gel pad on the sensor isn't clean and seated well, so looking at lifting it cleaning it and reseating, or should I just go with a new sensor.
I've always kept the auto rain sensing turned on, and only turn it off for the car wash, but until I get this sorted I leave it off.