I noticed at a red light that the transmission lunged when I tried to move. Then took forever to shift in to gear. It does not do it all the time just once in a while. If I pull over and shut the car off , it works fine. It also tries to speed up during this low shifting but wont go in to 3rd. I have to keep foot on break then pull over. It does not do it when I'm cruising only when I slow down I feel a thump and then it goes in to the non shifting deal. I shut the engine off and its ok. I just noticed when I'm sitting on and incline I drift backwards and that never did before. I just figured the computer was going wacky. It has not happen since Oct of last year and now happening again.