john peters Posted May 22, 2010 Share Posted May 22, 2010 I am having issues with my rx330 transmission. I have searched it on the net for a few days and have found the same answers, problem, problem. When I come to a stop sign, or am in heavy traffic it hesitates when I try to accelerate. Once I am rolling along it is fine, but when I stop again it hesitates. My husband thinks I am crazy, but he drives differently, he floors the accelerator and I want a smooth take off. If anyone can help me with a fix I would appreciate it as I am ready to trade to something else. Thanks JP Quote Link to comment Share on other sites More sharing options...
code58 Posted May 23, 2010 Share Posted May 23, 2010 I am having issues with my rx330 transmission. I have searched it on the net for a few days and have found the same answers, problem, problem. When I come to a stop sign, or am in heavy traffic it hesitates when I try to accelerate. Once I am rolling along it is fine, but when I stop again it hesitates. My husband thinks I am crazy, but he drives differently, he floors the accelerator and I want a smooth take off. If anyone can help me with a fix I would appreciate it as I am ready to trade to something else. Thanks JP How many miles on the car and have you ever had the trans serviced? Quote Link to comment Share on other sites More sharing options...
v-rodder Posted June 13, 2010 Share Posted June 13, 2010 u need to recalibrate the ecm it is a free service from lexus it eliminates the hesitation Quote Link to comment Share on other sites More sharing options...
goldfinger847 Posted August 8, 2010 Share Posted August 8, 2010 I am having issues with my rx330 transmission. I have searched it on the net for a few days and have found the same answers, problem, problem. When I come to a stop sign, or am in heavy traffic it hesitates when I try to accelerate. Once I am rolling along it is fine, but when I stop again it hesitates. My husband thinks I am crazy, but he drives differently, he floors the accelerator and I want a smooth take off. If anyone can help me with a fix I would appreciate it as I am ready to trade to something else. Thanks JP Hello JP: we had a simliar transmission problem on our 2004 RX330 with only about 50,000 miles on it at the time. Not only would ours hesitate on acceleration but would shift hard (thump) when moving to the next higher gear under a smoother part throttle. The hard shift did not occur under harder (closer to full throttle) acceleration. On the first two trips to the dealer, he recalibrated the ECM twice (at no cost) as mentioned in one of the other replies. He said the problem was a result of Lexus moving to a complete drive-by-wire throttle system in the RX330 and asked that we drive it a month or more each time because the newly programmed ECM takes a while to learn the habits of the individual driver(s)and store them in its memory. That did not fix the issue, did not even phase it as a matter of fact, and the third time we took it in for the same problem, we told him to keep it as long as needed because it was unacceptable as it was and if it could not be fixed we would be getting rid of the vehicle. He kept it a over a week and replaced the transaxle under warranty (7 years, 70,000 miles drivetrain). Problem solved. Maybe this reply comes too late if you have already replaced the vehicle. Quote Link to comment Share on other sites More sharing options...
MB 330 Posted August 17, 2010 Share Posted August 17, 2010 I also had the same transmission hesitation with my 2006 RX 330. I bought the car used from the Lexus dealer. Total miles were 60K Now the car has 86K, The transmission has ALWAYS had a hesitation until I learned about the software update. As others have reported this is a FREE Lexus repair. Night and day difference before and after. Git-er done ! Quote Link to comment Share on other sites More sharing options...
bd37703 Posted August 19, 2010 Share Posted August 19, 2010 yup had the same problem - calibrate the ecm fixed it Quote Link to comment Share on other sites More sharing options...
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