If I'm reading his post correctly, he says the first notch UP, which would be simply low speed for the wipers. The AUTO wiper function is the first (only) notch DOWN....(from the OFF postion), not UP, as he's said. The AUTO wiper function stops/slows down/speeds up, etc., based on speed and the amount of precip falling on the sensor. However, the first notch UP should just be the wipers working non-stop on slow speed............ even if stopped at a light, etc. They should just keep going! Push wiper lever DOWN all the way is AUTO, up one notch from there is OFF, UP one more is low speed, and up one more is high speed! The rear wiper does one swipe in AUTO mode when the car is shifted into reverse, but the rear wiper shouldn't be functioning at all in any other mode unless it's turned on by pushing forward on the stalk to turn it on. If it's intermittent on low speed, I don't believe that's a normal function! Feel free to correct me if I'm wrong, but I don't think I am. I WILL double-check the next time I drive and turn the wipers on LOW/HIGH to see for sure if the rear wiper swipes one time, but I THINK it only does it in AUTO! :>)