NHTSA Complaint #10037542 — 2002 LEXUS ES300

I WAS DRIVING AT ABOUT 35 MPH ON HIGHWAY. WHEN THE TRAFFIC SLOWED DOWN, I APPLIED THE BRAKE TO BRING DOWN THE SPEED OF THE CAR TO ABOUT 3-7 MPH. AFTER FOLLOWING THE CAR IN FRONT OF ME FOR ABOUT 5 SECONDS AT ABOUT 3/4 CAR DISTANCE, I SAW THE CAR IN FRONT OF ME SPEEDED UP SLOWLY AND I DECIDED TO FOLLOW UP BY PRESSING THE ACCELERATOR MODERATLY. THE CAR FIRST SHUDDERED, THEN PAUSED FOR ABOUT 1 SECOND, AND FINALLY ACCELERATED AT ALMOST MAXIMUM POWER. THIS WAS A NEAR MISS. BEFORE THIS HAPPENED, I BROUGHT OUR CAR TO LEXUS DEALER TO COMPLAIN ABOUT SHUDDERING/PAUSING WHEN ACCELERATING FROM LOW SPEED AFTER THE CAR WAS UPDATED WITH TSB-TC004-03; THE CHIEF TECHNICIAN DROVE THE CAR AND REPRODUCED THE KIND OF PROBLEMS THAT WE HAD. HOWEVER, HE SAID THAT HE COULD NOT DO ANYTHING ABOUT IT AND WAS GOING TO WRITE A REPORT TO TOYOTA CORP BECAUSE IT WAS A SOFTWARE PROBLEM. ON THE OTHER HAND, THE RECEIPT FROM THE DEALER SAID THAT THEY DID NOT FIND ANY ABNORMAL TRANSMISSION SHIFT DURING TEST DRIVING, BUT WOULD FILE A REPORT. WHAT A CONTRADICATION! THE DANGER OF THIS TRANSMISSION PROBLEM WAS FURTHER MAGNIFIED BY THE FACT THAT 2002 ES300 RUNS VERY SMOOTHLY AT MOST TIMES (>98%). THIS SHUDDER/PAUSE/ACCELERATION OR PAUSE/ACCELERATION THAT ONLY OCCURS SPORADICALLY UNDER VERY SPECIAL CONDITIONS GIVES DRIVERS SURPRISE THAT IS THE LAST THING THEY WANT DURING DRIVING. FOR CURIOSITY, I TESTED DRIVING THE CAR FOR ABOUT 50 MINIUTES BY REPEATLY SLOWING DOWN TO ABOUT 5 - 10 MPH BY APPLYING BRAKE, THEN ALLOWING THE CAR TO ROLL FOR ABOUT 3 SECONDS WITHOUT PRESSING GAS PADDLE, AND THEN ACCELERATING MODERATELY TO ABOUT 20 - 30 MPH. THE PROBOBILITY FOR THE SHUDDER/PAUSE/ACCELERATION IS ABOUT 5%, WHILE THAT FOR PAUSE/ACCELERATION ABOUT 15%. IT SEEMED THAT THIS PROBLEM HAPPENDED MORE OFTEN ON DOWN/UP HILL.. *AK