I RECENTLY HAD TO REPLACE THE TRANSMISSION ON MY CAR BECAUSE THE CAR WAS SHIFTING ERRATICALLY. AFTER THE TRANSMISSION WAS REPLACED I STILL HAD THE PROBLEM AND WAS TOLD THAT THERE WAS A TECHNICAL BULLETIN FROM TOYOTA TC002-6 WHICH SAID THAT A FAULTY ENGINE CONTROL MODULE (ECM) WILL CAUSE HARSH SHIFTING. TOYOTA DID NOT COMMUNICATE THIS PROBLEM TO ME BACK IN MARCH 2006. IF TOYOTA WOULD HAVE COMMUNICATED THIS DEFECT, I COULD HAVE HAD THE ECM CHECKED AND PROBABLY SAVED MY TRANSMISSION. *TR