Today I was driving in a moderate/heavy rain for the first time since having my R3. I was behind a new Dodge Ram with LED tail lights for about a mile stretch of driving. It was raining hard enough to keep the windshield constantly covered. Six out of the seven times that the Ram brake lights illuminated, my R3 alerted to laser. I'm guessing it was a combination of the rain and the height of the tail lights, because I have never been able to attributed any on my laser alerts to tail lights.