How many 2012 owners have complained about the transmission to Hyundai?

[jmatero]

For what it is worth, I test drove an R spec about 10 days ago. My wife and a salesman was with me, so I wasn't doing anything stupid. I came down an on-ramp onto the freeway (traffic moving 60-70 mph). I don't know what gear it was in, but I had brought the car up to or a little past merging speed. A car accelerated a little to "block" an easy merge, so I floored the R spec. It downshifted to "some" gear and took off like a raped ape. Hesitation was minimal and very acceptable in that particular situation.

The problem is mainly at slower speeds. Had you floored it then you would CLEARLY see the problem.

 

[Silver Bullet 00]

I cant get the HMA service agreement page to open up on the Hyundai service website either. I would really like to see the full text of the TSB's available including the contents of the 10 page TSB 12-AT-011 mentioned above. A copy and post would be welcome.

My service advisor told me today that there are no TSB's or open campaigns available for my vehicle. I provided him with the numbers of the six or so TSB's that have been posted for the 2012 Genesis and was told that he was looking things up by my VIN # and that none of them applied to my vehicle. I remain a bit skeptical.

I am becoming increasingly concerned about the "rolling stop" delay that has many of us frustrated when the car is in automatic mode. You may have developed a similar fear of pulling out in traffic after a quick near stop and go. I am never certain when and how much power I will get when I take off.

Just an observation that may apply. I put the tranny in Shiftronic mode and geared up to 6th or 7th and allowed the car to slow to a stop. During this time I watched the gear numbers automatically scroll down as the car slowed. Curiously the tranny automatically skips 2nd gear every time. Just drops from 3rd to 1st first when you slow to 3 mph or so. I wonder if the tranny is doing the same thing in auto mode...just skipping from 3rd to 1st? Perhaps if it would go to 2nd at 3 mph it wouldn't pause to think about what gear its looking for when power is applied.

Any thoughts?

Google Hyundai Service Website. I use www:hmaservice.com or try www:hyundaitechinfo.com. For a UID I use BB2008 and for a PW I use hmauser113023. Hope this helps.

 

[jrbinaz]

Google Hyundai Service Website. I use www:hmaservice.com or try www:hyundaitechinfo.com. For a UID I use BB2008 and for a PW I use hmauser113023. Hope this helps.

It does help. Thx!

 

[OGenesis]

Google Hyundai Service Website. I use www:hmaservice.com or try www:hyundaitechinfo.com. For a UID I use BB2008 and for a PW I use hmauser113023. Hope this helps.

Thanks for the help Silver Bullet!!

 

[jmatero]

This TSB outlines a new troubleshooting procedure when Genesis/Equus owners complain of "Harsh or delayed shifting".

1. The technician confirms the fluid level is correct.
   
2. Next, the technician connects the computer and drives the car through all gears trying to replicate the the shifting complaint.
   
3. The technician displays the captured shift data that shows the shift times between gears. (P-R-N-D, 1-2-3-4-5-6-7-8)
   
4. If the Park - Reverse shift takes more than 2.5 seconds, they are instructed to reset the adaptive learning for the transmission via their computer.
   
5. If the shift time for each of the 1-8 upshifts is less than 0.8 seconds, they are instructed to replace the transmission control module with one from another vehicle and retest.
   
6. If the shift time for each of the 1-8 upshifts is more than 2.5 seconds, they should compare this to another vehicle (similar model, year) and replace the transmission if the shift time is longer than the comparison vehicle.

So, harsh shifting may be the result of a bad Transmission Control Module producing a shift too quickly. A delay in shifting may be caused by either the adaptive learning needing to be reset or a defective transmission.

No new software change however. That's the skinny on it.

 

[037]

so too fast is bad and 2.5 seconds seems quite far fetched, it's not that bad.

The car can hold 3rd gear to at least 5mph from what I notice earlier today.

I still think the speed of the tranny has to do with it's complexity as well as the 10 year warranty (easy come, easy go).

 

[037]

what makes me wonder...why do they need to compare to other vehicles, don't they have certain specs they are trying to hit when making these things new? I refuse to believe they are just guessing when they make these.

 

[Gunkk]

Naw that just leaves them an "out" so they don't end up replacing every transmission in every car.

 

[roblaw]

For what it's worth, I am the one who started this thread. I contacted Hyundai for a second time two weeks ago. They said they now have a "Campaign" out with an ECU update for the 2012 3.8 to deal with the slow downshifting.

Last week I went and had the ECU update installed. The car definitely downshifts more readily. Since I am on the same tank of gas I cannot tell you if it going to hurt the poor suburban mileage I get (well below EPA estimates before the re-flash) but I do feel more comfortable making passes at this time.

The Campaign is called TK2.

I hope that this helps.

 

[OGenesis]

For what it's worth, I am the one who started this thread. I contacted Hyundai for a second time two weeks ago. They said they now have a "Campaign" out with an ECU update for the 2012 3.8 to deal with the slow downshifting.

Last week I went and had the ECU update installed. The car definitely downshifts more readily. Since I am on the same tank of gas I cannot tell you if it going to hurt the poor suburban mileage I get (well below EPA estimates before the re-flash) but I do feel more comfortable making passes at this time.

The Campaign is called TK2.

I hope that this helps.

Ok...so I call my dealership that was fixing a minor factory paint issue. I am supposed to pick up the car today so I called to ask them to take care of the TSB or Campaign for the trans. She puts me on hold and comes back saying all TSB's or campaigns have already been performed. I was a little surprised by the proactive approach my dealership took. Can they be this good? Seem s to easy given all of the bad press about servicing their Genesis.

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[jmatero]

The TK2 campaign was for an electronic throttle problem with the 3.8's. However, it would make perfect sense that delayed downshifting and what appears to be a "confused" transmission could actually be the fault of the drive-by-wire. If that proves to be the case, I hope something appears for the 4.6 and 5.0 cars!

 

[037]

sounds like it's time to take the car in for service.

 

[wjakridgeii]

So looking at the TSB 12-AT-011 there is this tidbit.

Read the 8LR/B solenoid elapsed time at the top right of the screen. If the P-R shift requires
more than 2.5 seconds, refer to TSB 11-AT-008-1, “Reset and Relearn Adaptive Values”:
 If the shift is less than 0.8 seconds, exchange a TCM from another vehicle and retest.
 If the shift time is more than 2.5 seconds, compare to a similar model and year vehicle.
Replace the transmission if the shift time is longer than a comparison vehicle.

REPLACE THE TRANSMISSION!!!! HOLY COW!! That would suck!

 

[037]

I don't think any of our cars are quite that bad (2.5 seconds)

I can't picture someone flooring it and sitting there with a stop watch in hand.

how about the fact that the car refuses to go into lowest gear and settles for one more...that's much more common in full auto.

I've really settled in to just row my own and row far in advance of anything requiring haste. My gas mileage suffers but I giggle more often.

 

[037]

well, got the ECM update and WOT shifts do seem quicker, definitely under 2 seconds now. Maybe even in the low 1 second range.

Going to see how that impacts my gas mileage going forward but it's a welcome update.

 

[Eciov]

Last month I was set to buy a new Genesis sedan, when I ran across this thread, that gave me second thoughts. But I then revisited all my other research, and the Genesis still came out on top. So I bought the new Genesis. And I generally love it. The transmission is a little abrupt. But, then again, I don't know if I would have been (overly?) scrutinizing it so closely if I had not first read this thread! And even so I felt perhaps it was more something to habituate myself to than any real problem. And then I read the following notice on page 5-11 of my Genesis manual, and wondered if this might be a "solution" for some here on this thread. Printed in my Genesis manual is: "*NOTICE The first few shifts on a new vehicle may be somewhat abrupt." So it looks like the abruptness that I'm experiencing won't even last very long! This "notice"obviously won't be a salve for everyone here, but may be for some.

 

[PMCErnie]

For what it's worth, I am the one who started this thread. I contacted Hyundai for a second time two weeks ago. They said they now have a "Campaign" out with an ECU update for the 2012 3.8 to deal with the slow downshifting.

Last week I went and had the ECU update installed. The car definitely downshifts more readily. Since I am on the same tank of gas I cannot tell you if it going to hurt the poor suburban mileage I get (well below EPA estimates before the re-flash) but I do feel more comfortable making passes at this time.

The Campaign is called TK2.

I hope that this helps.

Had this done too and there is definite improvement. I think mpg has suffered slightly, however. An overall positive.

 

[2012Rspec]

I have a 2012 3.8. It seems like almost every professional review of the vehicle, regardless of model (3.8, 4.6, 5.0) mentions the slow downshifting of the new 8 speed auto. It shifts smoothly on the way up but not only does it take a serious kick on the accelerator to get it to downshift at all but it takes a good three beats for the downshift to occur. Often you get far more acceleration than you wanted well after it is it needed. ....

That describes my transmission complaint perfectly. I think this downshift lag is going to cause an accident. I've come close twice. I've only noticed it in panic situations, but that's exactly the time when you want no lag at all.

The first time I noticed it (a deceleration case) was when travelling thru a construction zone. The wave of traffic in front of me came to an abrupt near stop, so I did, too. Just as quickly, it sped back up. While I was pressing the gas to try to speed back up, my car was still downshifting (clunk,clunk, clunk--you could feel it). The wave behind me was closing in fast, while about 200 feet had opened up between my car and the car in front. Fortunately, the car behind me hit his brakes just in time.

The second time I noticed it (an acceleration case), I was pulling across an 11-lane intersection, turning left. Halfway across the intersection, I notice someone barrelling down the road, looking like they were going to run the light and hit me. I hit the gas, and the car did nothing for a well over a full second. Nothing but scary, to me. The guy did run the light, but he veered to avoid me.

I can't think of many things I'd change about this car. I'd tweak the software and put more options on the driver info page (the amount of time accessory power & headlights stay on after the car is off, things such as that), which even low end dodges have. I'd tweak the nav software. The BIG thing? Fix this transmission!!!

 

[nsanow]

I am typing this response from the service department waiting room at my Hyundai dealership on their computer. I have an oil change and also said that the transmission is slow on the downshift. I already had the TCM update and wrote a 2nd email to Hyundai USA. This time the service manager hooked up the computer and rode with me to watch the shift patterns, throttle response, etc in real time during my drive. Pretty amazing and great idea!!

He clearly saw in real time the transmission pointing to first but waiting to give me acceleration. He thought the computer was intentionally holding me back since it saw my throttle was nearly to the floor and if it gave me the power I wanted my wheels would break loose. He is going to reset the adaptive learning on the transmission and call the Hyundai techline to see what he can find out. I let him know that pushing the throttle down is the natural response for anyone not getting the power they are looking for. He agreed.

He also told me how we can reset our adapting learning on the transmission anytime we want to. Here is the process.

Put the car in manual shift mode and run up to 5th gear how you want and then back down to 1st.

Once you stop, put the car in Neutral. Then row through the gears like before ending in neutral. Do this 4 times and it resets the shift logic to learn your driving style.

This is good since when I first owned it I was driving my wife around who likes a smooth slow ride while I prefer as fast and sporty as possible.

 

[037]

my wife made an interesting observation. When you floor the gas, the bottom is not where you think it should be. There is always more to go, at least for me. So after I hit what I think is WOT, there is just a little more room to push it further which forces a full down shift.

I don't know if anyone else has noticed this, but it feels like the car is resisting wide open throttle.