2006 LEXUS GS Vehicle Speed Control Problems

HELLO EVERYONE -- I HAVE 06 LEXUS GS300. I HAD A REBUILT TRANSMISSION, NEW VALVE SIX SOLENOIDS. BECAUSE I HAD HARSH ON THE 2 TO 1 DOWNSHIFT. THAT DIDN'T FIXED THE PROBLEM, AND THEY TOLD ME ABOUT THE ECU THE NEW COMPUTER WILL COST ME $1550 ON TOP OF THE $2200 I HAD TO PAY FOR THE TRANSMISSION AND LABOR TOO. THEIR SHOULD BE A RECALL NOTICE. HOW CAN WE ALERT LEXUS OF THIS PROBLEM AND SHIFT THE COST TO THEM FOR THEIR REPAIRS?

WHILE TRAVELING AT A RATE OF 40 MPH I PRESSED THE ACCELERATOR TO GO FASTER WHEN SUDDENLY THE CAR HESITATED AND BEGAN JERKING AND SLOWING ABRUPTLY. THANK HEAVENS NO ONE WAS FOLLOWING ME CLOSELY OR I MAY HAVE BEEN REAR ENDED. AFTER THIS "BRUSH WITH DEATH EXPERIENCE, I HAVE LEARNED THAT LEXUS HAS HAD NUMEROUS COMPLAINTS ABOUT THEIR ENGINES AND TRANSMISSIONS. I AM VERY CONCERNED ABOUT DRIVING THE VEHICLE AFTER MY EXPERIENCE AND AFTER READING ABOUT OTHER LEXUS OWNERS WHO HAVE HAD CLOSE BRUSHES WITH ACCIDENTS AS WELL. SOMETHING MUST BE DONE TO HOLD THIS CAR MAKER ACCOUNTABLE. IT IS CLEAR AT LEXUS THEIR PRIORITY IS PROFITS OVER THE SAFETY OF THEIR OWNERS. *TR