NHTSA Complaint #10321801 — 2006 LEXUS RX HYBRID

I HAVE A 2006, LEXUS, RX 400 H. A LEXUS CERTIFIED USED VEHICLE. THE VEHICLE WAS NEW TO ME LAST SUMMER. IT ACCELERATES SLIGHTLY WHEN I INITIATE BRAKING 2 OR 3 TIMES OUT OF 20 TIMES. I THOUGHT IT WAS "NORMAL" FOR A CAR WITH REGENERATIVE BRAKING. IT STARTLES YOU WHEN IT HAPPENS BUT HARD PRESSURE ON THE BRAKE STOPS THE CAR. YOU HAVE TO PAY ATTTENTION EACH TIME YOU BRAKE. WHAT IS SCARY IS IT ACCELERATES A LOT IN ABOUT 1 OF 100 TIMES WHEN I BRAKE. AT FIRST I THOUGHT I WAS HITTING BOTH THE GAS AND THE ACCELERATOR ... BUT I AM SURE I AM NOT. THE CAR WILL ACCELERATE TWO CAR LENGTHS BEFORE YOU CAN BRAKE IT. I THOUGHT IT WAS DANGEROUS AND BROUGHT IT TO THE DEALER LAST YEAR. WE WENT FOR A TEST DRIVE AND THE PROBLEM DID NOT OCCUR. THE DEALERSHIP RECORDED THE COMPLAINT AND TOLD ME TO KEEP AN EYE ON IT. THE 2 CAR LENGTH ACCELERATION PROBLEM WAS WORSE IN THE HOT MONTHS AND IT DID NOT SEEM TO OCCUR IN THE WINTER MONTHS. THE SLIGHT ACCELERATION PROBLEM HAS NOT CHANGED IN FREQUENCY. WITH ALL THIS TOYOTA BRAKE STUFF, I WONDER WHY I HAVE NOT HEARD OF THIS PROBLEM IN LEXUS HYBRID CARS TOO?