HARSH VEHICLE JERKING WITH BAD AUTOMATIC SHIFTING/ACCELERATION. USED EMERGENCY LIGHTS AND NARROWLY AVOIDED ACCIDENT WITH BADLY PERFORMING VEHICLE. PROBLEM IS DIAGNOSED AS FAILED ECM. *TR MANUFACTURER IS AWARE OF THIS ISSUE (TOYOTA DOCUMENT T-SB-0156-10) BUT DID NOT INFORM OWNERS. ECM FAILURE IN MY CAR CAUSED A VERY DANGEROUS DRIVING SITUATION. THIS COULD HAVE BEEN EASILY AVOIDED BY PRO-ACTIVELY REPLACING THE FACTORY INSTALLED ECM IF I HAD BEEN GIVEN THE T-SB-0156-10 INFORMATION. I WAS DRIVING WITH MY 2 AND 4 YEAR OLD DAUGHTERS AT THE TIME. THIS PART FAILURE IS A RECURRING PROBLEM FOR THIS CAR. PLEASE HAVE TOYOTA NOTIFY OWNERS BEFORE THIS HAPPENS TO THEM. THANKS.