NHTSA Complaint #10066256 — 2004 LEXUS RX330

I PURCHASED A 2004 LEXUS RX330 IN JANUARY OF 2004 AND THERE IS A CONSISTENT LAG OF THE DRIVETRAIN WHEN ACCELERATING FROM A STANDING START AND WHEN ACCELERATING TO PASS. FROM A STANDING START THE VEHICLE HESITATES AND THEN ABRUPTLY LURCHES FORWARD. AT HIGHWAY SPEED THERE IS A DECELERATION WHICH PITCHES ONE FORWARD AND THEN AN ENGAGEMENT WHICH LURCHES THE OCCUPANT BACK WITH A SNAPPING MOTION. THE ECM WAS REPROGRAMED AT 1000 MILE CHECK. WHEN A PRINT OUT OF TSB WAS PRESENTED SERVICE MANAGER REACTED LIKE A SNAKE WAS PLACED ON COUNTER AND THEN ADVISED THAT REPROGAMING ECM WOULD NOT NECESSARILY IMPROVE PROBLEM. HE WAS RIGHT. THIS IS A SAFETY CONCERN AS PULLING OUT TO PASS COULD CAUSE AN ACCIDENT.*AK