I have a 2002 RX 300, Just four months ago my transmission went out at 116,000 miles, now, at 125,000 miles, (after having it rebuilt) I am having problems AGAIN. Recently when I first start out, after letting it warm up for at least 5 minutes, my vehicle wont shift for the first mile or so of driving. Just today I was driving to work and it would NOT accelerate past 50 MPH. I surely hope that my rebuilt transmission wouldn't go out after only driving on it for 4 months! I've had nothing but problems with the tranny in this vehicle. Other than that, I absolutely love it.