Just wanted to offer advice to my fellow toyota owners with the sealed u series trans. If you think the trans is jerky and shifts erratically or does other aggrevating things.....have your fluid level checked !!! Just for the heck of it while my car was cold (and transmission fluid would be at its lowest level) i started the car and took out the plug and to my surprise a few ounces of fluid drained out (which shouldnt have happened on a properly filled car)...and it was amazing how it smoothed out the shifts and made the trans easier to live with. I dont know why they are so picky about level....but have it checked if your having issues.