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Comments
1) I am an owner who feels the problem, but does not think it is that big a deal.
2) I have driven several 2002/3 ES300s and I can create the same problem in all of them. My driving style at any given time impacts the degree of the problem more than any other factor. I don't personally believe that individual vehicles vary that much.
3) Because of 2), I have concluded that, no offense, a "jerky" driving style produces a jerky response in the vehicle. Drivers who never have the problem probably always accelerate smoothly. (Not that I think this gives Lexus and excuse to avoid the problem).
4) I believe the percentage of posters on this board with strong complaints does not correlate with the actual percentage of owners who experience the problem. I believe that we have a few squeaky wheels (myself included) on this board that make it seem as if all owners know about and are dealing with this symptom. But I don't think that all the sales reps, dealers, mechanics, etc. are liars when they tell you they have not heard any complaints.
5) I don't see how getting a new Lexus ES300 is in any way kicking anyone's butt. I see a lot of energy being expended more to get even with Lexus than to resolve the situation for oneself. I can't myself conceive of going to all the energy to pursue a lemon law just to get a vehicle with the same problem I had in the old one, and being happy with the outcome.
However, I wouldn't consider that a normal driving style - more like someone having a bad day or road rage. I guess when I bought my ES I was looking for and now enjoy a smooth ride. I like driving to work in the "cocoon" (nick name for the ES) so I'm not stressed out when I get there.
I remember discussing different Lexus vehicles with the sales rep. He showed me the IS300 and the GS300 - both of which are more "sporty" and responsive than the ES300. I chose the ES because I enjoy the incredible interior and the quiet, smooth ride. IMO a good value and GREAT CAR.
p.s. I don't work for Lexus
http://story.news.yahoo.com/news?tmpl=story&cid=509&ncid=- - 1189&e=2&u=/ap/20030709/ap_on_bi_ge/auto_dependability
I did research before purchase my 03 ES... only (very) few people complained about the hesistate of the tranmission of their 02 ES... However, thanks to today internet... their complaints have been wide spreaded...
With 60+ thousands ES sold last year and every year.. I feel sorry for their unlucky.. I hope Lexus will find out a solution for them...
I love the ES for safety, luxury feature, quiet and comfort ride...
PS: if employee can drive car for free, I will wish Lexus hire me... and probably I should send my resume to Porsche too.. :-)
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03 Alabaster Metallic
Premium w/ heated seat
Wood package + HID + VSC
Try (to save) to get a Boxter S to replace the Daytona in the next 3 years
I have a 98 Aurora and love it. Also, a friend was considering an ES300 as they are very nice. But after testing the Aurora 4.0 and getting a great deal (I think low 30's), he bought it right there. Give it a look.
Anyway, I was just cruising the board. Please, no domestic bashing. I'm just answering a question.
Having read post#89, I called Lexus Customer Satisfaction Dept. today,August 8. I was told that a fix was released monday,August 4.and that it should be in the dealers database by now. I called my dealer, reported this, and shortly after, I received a call to arrange a service appointment. My car goes in next tuesday to be fixed. I will let you all know how it turns out.
1- The original ECM is re-programmed NOT changed.
2- The new software is downloaded from the Lexus Corporation to the dealers computer.
3- Dealer transfers this new software to a scan tool and than plugs it into the socket which than uploads to the existing ECM. This upload takes about 1 hour. The scan tool tells the mechanic whether the update was successful or not.
My first findings:
I was told that the fuzzy logic will adapt to my driving habits after using it for awhile. Right from the start I noticed that acceleration, downshifts and upshifts were crisper. It seemed to know what gear to go into without the hesitation. I tried this at slow speeds(0-40mph) as well as road speeds(40-80mph).
I never had the shudder that some owners complained of, so I can't tell whether that has been corrected, but from all indications it looks like it would be.
Shifts were as smooth as before this upgrade.
So far I'm very pleased with this transmission fix and I'll report back if I find anything to the contrary.
Good job Lexus.
The problem, that still exists and appears will never be fixed, is an utter lack of power when the gas pedal is pressed firmly at around 40mph and dangerously the RPMs shoot up as high as 5,000 RPM almost to red line. The gear then sticks and only when you take the foot off the gas pedal do the RPMs come down and the gear then "pops" into place.
Scary stuff when you are trying to pass a big rig while merging onto the highway going 40-60mph. There's not much time to react going this fast and only time will tell when someone will get seriously hurt from this severe problem.
The "fix" with this TSB, if you will, fixes only the cosmetic and more noticeable poor driving characteristics of the transmission so many of us unfortunate 2002-2003 ES300 owners have experienced over the last year and half. The shift points have changed, allowing for the vehicle to more appropriately adjust to our driving styles. The hesitation, shuddering, and fumbling for gears is not as pronounced as before. However, as I have said above, this is no fix for the more serious problem with our transmissions. Which is the considerable loss of power in acceleration with the RPMs going to dangerous levels while driving above 40mph.
Signed-
Very Irritated and Disappointed Lexus Customer
Since my upgrade I tried doing exactly what you tried and I no longer get the hesitating that you are having. Naturally the RPM's increase since the car is downshifting to a lower gear. Driving around 40mph I tried flooring the accelerator and the transmission downshifted and the car accelerated very smoothly without the problems that you are incurring. I DON'T have a loss of power ever since the re-programming of the ECM!
I called Lexus Customer Service and I found out that the latest transmission upgrade for the '02-'03 ES is not reversible!!
Try to drive another car that has the upgrade and see if you like it before you have it done. My dealer never told me this and I was supposed to sign a release to have it upgraded. Lexus doesn't consider the poor shifting characteristics a defect, even thought there have been numerous complaints on this subject.
And of the $62,000 SC430, Road and Track said, "Automatic shifts are seamlessly smooth, but there's a bit more delay in the kickdown than we'd like."
Ironically, Toyota's 4-speed automatics have always been praised as among the best in the business (along with GM's).
I have owned GM products for the past 15 years and have nothing but praise for their transmissions.
I had computer #89666-33442 installed on my 2002 ES300. The car continues to perform great (almost perfect). I am no longer reluctant to move into the passing lane. For my purposes, the hesitation problem was solved.
In Canada, the ULEV-II regulations don't apply. Maybe that has something to do with the U.S. problems.
(1) The car moves at about 3 - 7 mph without applying gas for about 2 - 4 seconds (when you either follow other cars in traffic jam or make a slow turn).
(2) You want to accelerate quickly (The car that you follow speeds up or you finish making a turn and want to speed up).
According to him, the fix makes things better for city, stop-and-go driving, but worse for highway driving. He also said that once you get the fix, you can't go back.
He did not know whether the problem is in the ES330.
He said that the problem is a side effect of having everything electronically controlled and it seems to be the way of the future. I suspect that eventually, they will fix things, but in the near future, all vehicles will have problems like this when they go to the newer designs in transmissions.
I find it hard to accept that this is an acceptable condition.
It sounds more like an unwillingness to have to revert back and forth between the software versions for customers, rather than a technical inability to do so.
Anyone else know of a chip that can only be written to twice before being permanent? Only ones I know of are either non-flashable (write-once), or able to be flashed multiple times.
If it indeed is technically impossible to flash back to the previous software version, that would mean you'd be prevented from having potential future software versions loaded on.
If you are correct that the Canadian version corrects the problem, then the trade-off I mentioned before must be an emmissions issue. In order to have good gas mileage, more power, at low price, and be within some states' emissions requirements, we get a transmission that hesitates. Oh, well.
As a software developer myself,(I write the Mission Computer and warfare management computer software for a military aircraft), I know that you may or may not be correct about the technical ability to reload various versions of software. It could be that the "patch" firmware is not a complete reload. If patches are sloppily written by programmers, the new code could cause incompatibilities that would not be overwritten by the earlier version. Unlikely these days, but very, very possible.
Since I have found a way to overcome the transmissions computer logic, should I leave well enough alone? Or should I get the new transmission upgrade that is irreversable? I would greatly appreciate the opinions and experiences of other owners before calling Lexus with my questions. The official letter must have been written by lawyers as a CYA, because they offer an irreversible upgrade that should not significantly change the performance of the car?!?! So it is our problem if we don't accept the upgrade, but it is also our problem if we take the upgrade and it makes the situation worse.
Thanks to all for your opinions and sharing your experiences with the upgrade.
This is a real Catch 22, "Damned if you do, damned if you don't" situation. So, I really appreciate the actual results of Lexus Owners with the upgrade before taking the plunge myself.
Good luck and may the force be with you!
Sorry if this sounds ignorant to car buffs!!!
I'll say this for Texas. He knows how to hound the big guys to get results. Maybe you can get Lexus to give you an ES330, provided the problem is fixed in the new model.
An "enhancement" means that something works well and you can make it run better.
A "fix" means something does not work well and you need to fix it. What does "enhancement" mean for my '02 ES 300??
Aside from a very slight "bump" at about 20-30 MPH, I am not having any problems.
Perahps I am being too sensitive about this slight bump. My concern is that if something is not working properly and consistently wears away at the gears, will I face a serious trans. problem later on?? Since Lexus is not really saying that anything is wrong, it's hard to decide if I should do the enhancement that you can't reverse, or just let things be.
Any suggestions, guys(and gals too)?
Should I just leave things alone, since I am happy with trans now, or should I do the enhancement?? Thanks, Weiss4
texas83 - Getting your story into a major newspaper would probably get Lexus going. It certainly worked for the Toyota "engine sludge" folks.
I spoke with my dealer, and the story seems to be that since not all owners experience the problem, Lexus can't say whether it is a problem, and therefore they don't advertise the new firmware as a "fix". If it were, Lexus would be putting it in all cars, not just in those cars where owners feel the problem.
Atoews.... I wrote Motor Trend, Car and Driver, Road and Track and Automobile. I don't know if that will get anywhere, but they were worth a try. I included many of the disgruntled anecdotes from this board, plus my own commentary. I think the newspaper is a good idea. I'm kinda short of time right now, and it actually takes a lot of time to write these letters.
You could spend the time on just 1 well-written typed letter, and then be able to send it to multiple sources with minimal additional effort.
As you have more miles with the upgrade, I would certainly appreciate your update. I am leaning towards getting it, but I don't want to make things worse or to solve one problem by creating another one.
General concensus amongst those who got the update is that it's been improved, but some of the EXISTING issue(s) are still present.
Thanks for your report on the transmission. Because of reports on this board, I'll have the fix at my next servicing.
It is very frustrating because the dealers don't know squat about the NAV systems. Most of them are Einsteins on the transmission problem compared to what they know about the NAVs.
My friends and I love ours (I live in a area populated by a lot of computer savvy folks) and it is our opinion that the reason that more NAVs aren't being sold is that the dealers don't know how to work them!!
When I purchased my ES300 in 2002, I was incredulous at all the effort people were putting into getting the ML without the NAV.
Almost without exception, friends with BMWs and nice new cars, who did not order a NAV system, wish they had once they see how mine works.
Anyway, thanks for letting me vent.
I read the 2002 transmission issue and letter mentioned on this board. I am wondering did Lexus send that letter out for 2003 ES300 as well? Does 2003's have the same transmission problem?