It's raining furious today.. and the wipers have a mind of their own. Definitely a few times when I was at a stop light the wipers lagged to a 9 second interval vs 3 seconds when driving. It also just slowed to 5/6 seconds. Still I'm not sure how much sensor vs speed related it was. I backed out of my driveway and the rear wiper didn't go off.. although every other vehicle I have with a rear wiper does do it once in reverse.. mine might just not have met enough criteria this morning. I use the backup camera anyways