IVT transmission update?

2020 Views 36 Replies 7 Participants Last post by imaddicted2u, 22 d ago

mayo

Discussion Starter · 2 mo ago (Edited)

Down at the dealership for an inspection and seatbelt recall and the service dept has informed me there is a transmission software update for the ivt.
Has anyone had this done and did you notice a change in the mannerism of the ivt after? Guess we will see if I’m the Guinea pig on this one.✌🏼
PS…I NEED THESE WHEELS IN MY LIFE!

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mayo

Discussion Starter · #2 · 2 mo ago

Drove it home (took about 2hrs with inspection) and I’m liking what I’m feeling here guys. A lot of the lag on takeoff has been removed and throttle input is about perfect in 0-40 driving.
No hurky jerky downshifts from too much input. Gonna take him out for a spin later this evening and put it to the true test…
Grades.

Reactions: 1

mayo

Discussion Starter · #3 · 2 mo ago (Edited)

Well not much has changed so I have no idea what they did. Lag on start seems better, and throttle mapping feels different but it’s very close to where it was.
Can’t find a damn thing on the TSB online.
23-01-019H listed on invoice.
Also noticed they drove it 9 miles after update so they were obviously checking something. Think I’m going back the next chance I get for an explanation.

imaddicted2u

· #4 · 2 mo ago

mayo said:
Well not much has changed so I have no idea what they did. Lag on start seems better, and throttle mapping feels different but it’s very close to where it was.
Can’t find a damn thing on the TSB online.
23-01-019H listed on invoice.
Also noticed they drove it 9 miles after update so they were obviously checking something. Think I’m going back the next chance I get for an explanation.

This demonstrates the importance of visiting the dealer to check for TSB updates periodically. When the dealer enters your vehicle VIN into the Hyundai system, open TSBs pop up. Unlike recalls, no notice is sent for TSBs.

@mayo
Part of the after TCU firmware update procedure is pressure control learning and likely a test drive. I haven't found 23-01-019H either. Too new I guess.
Here is a similar bulletin for Elantra. It details the procedures followed...

22-01-030H Hyundai Technical Service Bulletin

22-01-030H Hyundai Technical Service Bulletin

www.tsbsearch.com

www.tsbsearch.com

Reactions: 1

Chicago Jake

· #5 · 2 mo ago

TSB?

mayo

Discussion Starter · #6 · 2 mo ago

Chicago Jake said:
TSB?

Technical Service Bulletin

imaddicted2u

· #7 · 2 mo ago

Here is a "1.6MPI – IVT Driving Performance Improvement" TSB for 20-21 Accent.

https://static.nhtsa.gov/odi/tsbs/2021/MC-10196456-0001.pdf

Chicago Jake

· #8 · 2 mo ago

mayo said:
Technical Service Bulletin

Thanks!

mayo

Discussion Starter · #9 · 2 mo ago

So here you go, hot off the pdf press.
According to the code on my invoice (10D198R0) was applied and updated.
If it was the latest version I’m sure the ivt performance improvement was part of it, resulting in the change in lag from takeoff.
That’s about all I can feel in the pants with this update, but a very welcome change for sure.

Reactions: 1

imaddicted2u

· #10 · 2 mo ago

mayo said:
So here you go, hot off the pdf press.
According to the code on my invoice (10D198R0) was applied and updated.
If it was the latest version I’m sure the ivt performance improvement was part of it, resulting in the change in lag from takeoff.
That’s about all I can feel in the pants with this update, but a very welcome change for sure.

Thanks for this info.
Everyone with an automatic transmission Venue (IVT) should make sure this update gets applied. If your car is serviced by a dealer it is supposed to happen automatically.
If you do your own service or get work done elsewhere, you'll need to visit a dealership.
While you may not feel a difference these firmware updates are built to enhance performance and tune internal control to minimize potential for transmission failure.
In today's electronically complex automobiles software updates have become one of the most important maintenance items.

Reactions: 1

lindeman13

· #11 · 2 mo ago

I see that this TSB applies to 20-22 model years. I took ownership of my '23 Limited a week ago. The build date is 1/26/33 (only a couple of months old) and I only have several hundred miles on it. I'm thinking that the 2023 models (or beyond a certain build date) may have already incorporated these changes? I really like the car but am concerned that this "newish" transmission is a "work in progress" with some teething/reliability issues still to be worked out. My other car has a Jatco CVT and I've had no issues with it at 13 years old and 109k miles. I've changed the fluid a couple of times and drive the car sensibly. The CVT ("ivt") in the Venue is a MUCH better drive. It's a far smoother and more responsive transmission (even though the engine behind it has less power).

imaddicted2u

· #12 · 2 mo ago

lindeman13 said:
I see that this TSB applies to 20-22 model years. I took ownership of my '23 Limited a week ago. The build date is 1/26/33 (only a couple of months old) and I only have several hundred miles on it. I'm thinking that the 2023 models (or beyond a certain build date) may have already incorporated these changes? I really like the car but am concerned that this "newish" transmission is a "work in progress" with some teething/reliability issues still to be worked out. My other car has a Jatco CVT and I've had no issues with it at 13 years old and 109k miles. I've changed the fluid a couple of times and drive the car sensibly. The CVT ("ivt") in the Venue is a MUCH better drive. It's a far smoother and more responsive transmission (even though the engine behind it has less power).

All TSBs available, if any, when you bought your 2023 should have been applied at the factory or by the dealer. The Hyundai IVT is very much much like the Jatco (75% Nissan owned) except it replaces the segmented steel push belt used in most CVTs with a chain belt and some intelligent programming logic.The chain belt design is supposed to give increased durability. So far my 2021 has been flawless in every department.

www.venuedrivers.com

Smartstream IVT

Smartstream IVT In internal combustion engine vehicles (ICEVs), the transmission serves an important role of situationally adjusting the engine RPM to allow controlled application of power. Appropriate shifting of gears can let the engine to continuously function at the desired range of...

www.venuedrivers.com

www.venuedrivers.com

lindeman13

· #13 · 2 mo ago

I knew it used a chain vs. belt and am heartened by your good experience with reliability. I am actually a fan of CVT transmissions and really like how the Hyundai unit behaves vs. the Jatco. I am an "older" driver and tend to drive "conservatively" (or slowly if you want to believe my rare passengers). On another note, I was surprised to see that the armrests on my Limited are padded...front and rear (was prepared for hard plastic as noted and complained about in many of the test drives). They are not luxury car padded but are padded nonetheless.

imaddicted2u

· #14 · 2 mo ago

Even though Hyundai targeted Millennials with the Venue. It seems there are are a lot of us "older" drivers here. lol
Hard plastic armrests here.

driving.ca

First Drive: 2020 Hyundai Venue

The cuddly, all-new Venue is the rather affordable gateway into Hyundai's ever-growing CUV lineup

driving.ca

venue1947

· #15 · 2 mo ago

imaddicted2u said:
Thanks for this info.
Everyone with an automatic transmission Venue (IVT) should make sure this update gets applied. If your car is serviced by a dealer it is supposed to happen automatically.
If you do your own service or get work done elsewhere, you'll need to visit a dealership.
While you may not feel a difference these firmware updates are built to enhance performance and tune internal control to minimize potential for transmission failure.
In today's electronically complex automobiles software updates have become one of the most important maintenance items.

so if this is needed why isn't it a recall or why don't the owners of vehicles that should have this done are not notified??

imaddicted2u

· #16 · 2 mo ago

venue1947 said:
so if this is needed why isn't it a recall or why don't the owners of vehicles that should have this done are not notified??

You'd have to ask Hyundai that question. A Satety Recall has a different purpose than a Technical Service Bulletin (TSB). They should have a site or add it to the recall site where you can enter your VIN and it would display any recalls or TSBs for your car and show which are still open. Heck, they could even inform over your Bluelink, maybe they do, I don't have it.
This is a firmware update, similar to Windows or Apple or Android updates. Today you have to visit the dealer but someday these updates will happen automatically, over the air. Hyundai is currently updating a couple of in car Entertainment systems using OTA.

venue1947

· #17 · 2 mo ago

imaddicted2u said:
You'd have to ask Hyundai that question. A Satety Recall has a different purpose than a Technical Service Bulletin (TSB). They should have a site or add it to the recall site where you can enter your VIN and it would display any recalls or TSBs for your car and show which are still open. Heck, they could even inform over your Bluelink, maybe they do, I don't have it.
This is a firmware update, similar to Windows or Apple or Android updates. Today you have to visit the dealer but someday these updates will happen automatically, over the air. Hyundai is currently updating a couple of in car Entertainment systems using OTA.

I'd think the corporation would want to rectify problems especially like the IVT/CVT's that has been known in the industry to have bad reputations with many auto makers that use them, that is if this type of fix is needed to fix or prevent problems and can be done cheaply on a key board...maybe the fix isn't needed for all...I've always believed that a good break in of any vehicle is essential and it's not just for the engine, but things like transmissions, brakes, tires and almost anything that moves...I've always probably maybe gone to the extremes on break ins, like changing the oil and filter before it's needed...I've done even more on some vehicles like my Camaro which besides the oil and filter, I changed the rear differential oil and checked for any metal bits once I removed the oil, and the oil I put back in was the factory oil that cost close to 80 bucks, and I've done a lot of preventive maintenance on my vehicles, and so far have had good luck, but with all the changes over the last several years, most of us are hoping luck will be on our side. 🤷‍♂️🤞

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imaddicted2u

· #18 · 2 mo ago

But that's the whole reason TSB's exist. To rectify potential problems.
Every auto manufacturer has TSBs. No manufacturer I've dealt with ever notified me of TSBs. I do think it would be preferable to get a notification, but they don't appear to do that.
@mayo was in the service department for the seatbelt recall and was then informed of TSB 23-01-019H issued in March of 2023. @mayo would not have found out about it until it appeared on one of the TSB search sites (it's not there yet).
According to the TSB text...right or wrong, this is how they handle open TSBs inside Hyundai.

Rectangle Font Parallel Number Screenshot

TSBs (Technical Service Bulletins) for All Years, Makes and Models is one site where TSBs can be looked up for the major manufacturers but I'm not sure how up to date it is as TSB 23-01-019H is not listed yet. At the bottom of the page, put in your Camaro and see how many TSBs were issued.
Not ideal but If I was changing my own oil, I would ask the service department periodically if there are any open TSBs associated with my VIN.

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mayo

Discussion Starter · #19 · 2 mo ago (Edited)

IVT/CVT transmissions are very software dependent. It’s the difference maker at the end of the day. Hyundai will constantly update it based on feedback and data as we go along.
Glad we got our first one and as I said, it is a step in the right direction based on my experience so far. They still have work to do with grade logic imo. It’s still boggling down on most grades under 40 mph. It forces you to mash the petal halfway up the grade and most of the time it over corrects and sends the engine straight to 3k+ rpm’s. I would hold up shift about another 25%, when a grade is present.
It really does this perfectly while in sport mode. If they could just merge sport/normal. Like the first 5 ratios in sport and then let normal take over making it essentially an overdrive.✌🏼

imaddicted2u

· #20 · 2 mo ago

mayo said:
IVT/CVT transmissions are very software dependent. It’s the difference maker at the end of the day. Hyundai will constantly update it based on feedback and data as we go along.
Glad we got our first one and as I said, it is a step in the right direction based on my experience so far. They still have work to do with grade logic imo. It’s still boggling down on most grades. I would hold up shift about another 25%, when a grade is present.
It really does this perfectly while in sport mode. If they could just merge sport/normal, it would be perfect imo.

I think every driver feels things differently and this is just one drivers opinion. When I climb the steepest hill in town, I just hold the accelerator and let the IVT gradually find the suitable gear ratio as the grade increases and the road speed is held reasonably well. It was one of the first things I noticed going from a multi speed automatic to the IVT. Instinctively I wanted to feel a downshift like the traditional automatic and mash the throttle to force a shift but the IVT is constantly varying the gear ratio. Works for me but everyone drives their cars differently.
Kudos @mayo for posting the TSB in the first place. I'm booked for an oil change next week along with the pretensioner recall and will make sure the do the TSB also.

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