The mystery about transmission hard shift is finally revealed (TSB for HARSH 2~3, 3~4 OR 4~5 UPSHIFT)

[PGA1AB]

Does not seem fair that you are caught in the middle between dealer and manufacturer. That is my fear for anyone experiencing this problem.

 

[glennk]

I am currently in this process with my dealer, after their diagnoses, they agreed that a transmission replacement would be the fix. The manufacturer approved the part order however, the warranty department is refusing to approve the repair to take place. They have had my car for 2 weeks now with no updates other than what I've written here.

Whom is the warranty with? If it is Hyundai/Genesis, call the hotline and file a complaint directly with them. Sometimes bean counters need a kick in the arse to motivate them. If it is a third party warranty company, call the Better Business Bureau and ask for arbitration assistance.

 

[rcmeditz]

Whom is the warranty with? If it is Hyundai/Genesis, call the hotline and file a complaint directly with them. Sometimes bean counters need a kick in the arse to motivate them. If it is a third party warranty company, call the Better Business Bureau and ask for arbitration assistance.

Warranty is through the corporation that owns the dealership. Guess my route would be the BBB then.

 

[glennk]

Warranty is through the corporation that owns the dealership. Guess my route would be the BBB then.

Yeah, third party warranties can be a pain. Manufacturer backed ones are more expensive. One last question, I wonder if the warranty is truly controlled by the dealership corporate entity or if they sell you the warranty and it is managed by a third party. Pay a visit to your old Finance & Insurance guy/gal to better understand the warranty process. If the dealer funds and manages the entire process, I'd find out whom is the General Manager. That person may have sway with the process. After that, I'd draft a letter to the owner/CEO explaining your situation, what you'd like to happen and send it USPS Certified.

 

[rcmeditz]

Yeah, third party warranties can be a pain. Manufacturer backed ones are more expensive. One last question, I wonder if the warranty is truly controlled by the dealership corporate entity or if they sell you the warranty and it is managed by a third party. Pay a visit to your old Finance & Insurance guy/gal to better understand the warranty process. If the dealer funds and manages the entire process, I'd find out whom is the General Manager. That person may have sway with the process. After that, I'd draft a letter to the owner/CEO explaining your situation, what you'd like to happen and send it USPS Certified.

They happened to call today to tell me that the warranty department approved the repairs however, transmissions are currently on back order and they could not provide an estimate as to when they'll be in stock. Additionally, they will not provide a rental/loaner car as I bought used and not new. So I just get to continue to play the waiting game.

 

[glennk]

They happened to call today to tell me that the warranty department approved the repairs however, transmissions are currently on back order and they could not provide an estimate as to when they'll be in stock. Additionally, they will not provide a rental/loaner car as I bought used and not new. So I just get to continue to play the waiting game.

Re-read the warranty to see if there is any mention of a rental car coverage. It may be obscurely hidden in the towing section. I'd bet the transmissions have been allocated for Production, but its the shipping. They want to sail it to you on the slow boat from Korea, rather than in the belly of a 747 (Atlas Air). I'd rather wait than get something from a junk yard.

 

[rcmeditz]

Re-read the warranty to see if there is any mention of a rental car coverage. It may be obscurely hidden in the towing section. I'd bet the transmissions have been allocated for Production, but its the shipping. They want to sail it to you on the slow boat from Korea, rather than in the belly of a 747 (Atlas Air). I'd rather wait than get something from a junk yard.

Just re-read that section and it stated that they would reimburse $35 per day of rental car use, but that it does not cover part delay which is what I’m experiencing.

 

[rcmeditz]

Just re-read that section and it stated that they would reimburse $35 per day of rental car use, but that it does not cover part delay which is what I’m experiencing.

I actually called the dealer and asked for more information about the backorder and they ended up agreeing to give me a loaner until the transmission comes in as their ETA for the transmission has disappeared from their system. According to the tech I spoke with, he said since the transmission for the 5.0 is produced by a german manufacturer, they have no idea when it will arrive unlike things coming from their Korean manufacturers. I now have a 2022 Santa Cruz until my car is fixed.

 

[skipgen]

I actually called the dealer and asked for more information about the backorder and they ended up agreeing to give me a loaner until the transmission comes in as their ETA for the transmission has disappeared from their system. According to the tech I spoke with, he said since the transmission for the 5.0 is produced by a german manufacturer, they have no idea when it will arrive unlike things coming from their Korean manufacturers. I now have a 2022 Santa Cruz until my car is fixed.

Some of the older Genesis models had a ZF six speed, later on they moved to the Hyundai built 8 speed.

 

[rcmeditz]

Some of the older Genesis models had a ZF six speed, later on they moved to the Hyundai built 8 speed.

Yeah, I know mine, the 2017 g80 5.0 Ultimate, has the 8-speed, so not sure why the tech told me it would be coming from Germany.

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[alengineer]

Does replacing these parts really solve this problem?!

Has anyone tried?

I have the same problem + vibration at 30-35

 

[glennk]

I think it is more hit and miss, replacing things until the problem resolves. Hence why the extended service contract is critical. It could be the transmission, the propeller shaft, one of the transmission joints or supporting brackets. Heck, I've seen the differential being replaced as well, even though it is all the way at the back of the car. One of those days you wish'd Hyundai had reverse engineered a LS460.

 

[Husam]

I think it is more hit and miss, replacing things until the problem resolves. Hence why the extended service contract is critical. It could be the transmission, the propeller shaft, one of the transmission joints or supporting brackets. Heck, I've seen the differential being replaced as well, even though it is all the way at the back of the car. One of those days you wish'd Hyundai had reverse engineered a LS460.

I agree it is more of a hit or miss. There could be multiple reasons of a transmission hard shift, to name a few: fluid level or age, valve body, solenoids, pump, torque converter, seals, dampeners etc.

However, Hyundai and Genesis released this TSB as it seems that the vast majority of the victims have been suffering from the hard shifts had their problems fixed with this approach of replacing the solenoids and updating the TCM software. I've done additional research and landed on a Russian forum (where I translated their posts) and the guys were pretty successful in decoding the reason why these solenoids fail. It is heat and temperature. These two solenoids do not have a breather and the new ones do.

I hope you all benefit from this TSB. I will attempt this fix sometime next month.

Good luck.

Husam.

 

[alengineer]

I agree it is more of a hit or miss. There could be multiple reasons of a transmission hard shift, to name a few: fluid level or age, valve body, solenoids, pump, torque converter, seals, dampeners etc.

However, Hyundai and Genesis released this TSB as it seems that the vast majority of the victims have been suffering from the hard shifts had their problems fixed with this approach of replacing the solenoids and updating the TCM software. I've done additional research and landed on a Russian forum (where I translated their posts) and the guys were pretty successful in decoding the reason why these solenoids fail. It is heat and temperature. These two solenoids do not have a breather and the new ones do.

I hope you all benefit from this TSB. I will attempt this fix sometime next month.

Good luck.

Husam.

Good luck, waiting for your feedback

 

[Husam]

Here is an update.

I just had the solenoids replaced in the transmission valve body a couple of days ago with a full transmission fluid change with a complete flush.

I then reset the adaptive values and then performed full adaptation by learning the pressure points of the upshifts and the downshifts.

I will continue to monitor the transmission behavior but so far the shifts are much better, you could say 70%-80% better shifts.

4 to 5 harsh upshift gone away.
2 to 3 harsh upshift 50% better.

I will write an update next week as well.


Husam.

 

[smirn0ff]

Husam,
how you reset the adaptive values?

 

[Husam]

Husam,
how you reset the adaptive values?

You'll need an advanced OBD scanner to connect to the car and perform the special function.

Some scanners:
Launch, Autell, GScan etc.

I have one.

The process is pretty simple:
1. Connect the scanner to the OBD port and let the scanner auto detect the car.
2. Select the TCM
3. Select Special Functions under the TCM menu
4. Select Reset Adaptive Values and follow the process. It is important that this is done while the shifter is on Park and the ignition is On but the engine is Off.


Hope this helps.

Thank you,
Husam

 

[alengineer]

As for me, I changed the air filter, it was dirty and I noticed a noticeable improvement in the transmission, so far there is no harsh change. I hope it stays that way.
As for the vibration at 30-35 miles, I resurfaced the brake rotors, because there was vibration when I applied the brakes. And the problem was solved.

Sorry, my English is not good, I just wanted to share my experience with you

Does replacing these parts really solve this problem?!

Has anyone tried?

I have the same problem + vibration at 30-35

 

[RenGentMan]

Here is an update.

I just had the solenoids replaced in the transmission valve body a couple of days ago with a full transmission fluid change with a complete flush.

I then reset the adaptive values and then performed full adaptation by learning the pressure points of the upshifts and the downshifts.

I will continue to monitor the transmission behavior but so far the shifts are much better, you could say 70%-80% better shifts.

4 to 5 harsh upshift gone away.
2 to 3 harsh upshift 50% better.

I will write an update next week as well.


Husam.

Husam,

As the new owner of a 2018 G80 Sport, I want to personally thank you for your insight. As the former owner of a Gen 1 2015 3.8 that I traded in with 132,000K/80M, I can attest this was not an issue. Mine is exhibiting both hard Upshifts and some harder downshifts, I plan on taking it to the Dealer shortly as I only have Warranty Coverage until January 2023, but will wait for your update.

 

[RenGentMan]

Whom is the warranty with? If it is Hyundai/Genesis, call the hotline and file a complaint directly with them. Sometimes bean counters need a kick in the arse to motivate them. If it is a third party warranty company, call the Better Business Bureau and ask for arbitration assistance.

As the previous owner of a 2015 3.8 with the Hyundai Extended Warranty, I still experienced claim/honouring issues. Bought the car and Warranty extension out of Province, local Dealer repeatedly declined to acknowledge or respect it.

Had issues with intermittent flickering headlights, Seat Heater among others, and Dealer always initially declined to acknowledge or address issue, I assume hoping I would go away. When I pointed out the TSB issue for the lights, the Dealers response was 'Bring it in when the issue happens", which was a patently absurd as it of course only happened at night when the Dealership was closed. When I submitted the TSB, they claimed it was NOT covered under the Hyundai Ext Warranty. Took the matter up with several members of Hyundai Canada's Senior Management, and after several weeks they conceded with the astonishing caveat that they would only honour it this one time! With the Seat Heater issue, Dealer diagnosed it as a failed heater element and that the resolution was to replace the whole seat at my own $3000cdn cost. After again taking it up with Hyundai Canada, it suddenly WAS covered and Dealer claimed to have just replaced the seat cushion, which I found hard to believe as the seat still rocked in bracket AND I had to pay my Saab mechanic a bonus to find one of the keys lost under it.

Had an Oil Change, only to bring car home and have litres of oil leak all over garage floor. They insisted I bring it back, again at my own expense, despite the Warranty supposedly covering Towing. Worse, they claimed it was a faulty Oil Filter, brought car home and parked it outside only to have it leak oil all over newly paved driveway. Had to tow it back (thank god for CAA), only to have them tell me that I need to file an Insurance Claim "for extensive undercarriage damage" that was the cause of the leak to pay for the thousands of dollars it would cost to repair. Then took car to my Saab shop, they diagnosed the cause as a corrupted Oil Plug, suggesting it was the exact same one used in Corolla's that are renown for failing, changed whole pan and fixed the problem. Needless to say I'm extremally disillusioned and disappointed as I found the Dealer and Hyundai Canada both negligent and culpable. I'm about to take them to task now again for the Transmission issue; wish me luck!