About 3 weeks ago our Model 3 wipers came on one am without any moisture on the windshield. To avoid damage to the windshield while trying to understand the cause, I turned the wipers fully off. Now, in light moisture, in mode 1, they run after wiping the windshield dry -- a real pain in the a__ in light rain. la, below. After requesting Service, a service rep said that it was a known error introduced with a recent update! We are awaiting a correcting update.