I also experienced the jerky transmission while slowing down and coming to a stop. Dealership diagnosed my LC with low transmission fluid. Since they have topped off the transmission fluid, I now feel an inconsistent flutter/shutter around 53 mph. Seems to do it more when the vehicle is cold. Took it in today to Toyota and they said it is completely normal. I never experienced this sensation until they topped off the transmission fluid. Anyone experiencing this flutter/shutter? Once in a while I will feel it when I am going about 40 mph up a hill. Any advice would be greatly appreciated.