Hyundai Tucson 2018 auto almost stalls when driving at low speed?

[TucsonOwner2024]

So the update so far is that my car won't be checked for a long, long time. Having finally been given the warranty document I had a read of it. I wondered what your thoughts were on this please everyone? Would you say, any issue with the DCT (if it is that) would be covered under the one year warranty they give me? The warranty states that all mechanical and electrical parts are included if they failure to perform their normal function on the vehicle. Now correct me if I am wrong, should a 2018 auto Hyundai with 45 thousand miles have issues with a DCT when it has such low mileage? Warranty also states under the excluded section that any parts that reach the end of working because of age or mileage aren't basically covered. Surely there should be no issues on a DCT for an auto with such low mileage? It should be covered right? Many thanks all.

[PhilHornby]

My thoughts ...

As things stand, the Hyundai Warranty (or at least its physical incarnation, here on earth: the dealer) seems to be as much use as a chocolate teapot. I see nothing in the Warranty Terms and Conditions about charging the customer up-front, to see if there might be a warranty claim! You could try and find a more reasonable dealer, but personally, I would focus on your rights under the Consumer Protection legislation - i.e. a claim against the supplying dealer. If you start a 'Small claim' against the dealer (you can do it online), they might be more inclined to help you make a successful warranty claim against Hyundai

First though, you have to ascertain what the fault is - indeed, if it is a fault, or just a 'characteristic'. Driving a similar vehicle, or getting a professional opinion would help. If paying anyone upfront, you'd surely be better off paying someone who is independent. See: https://www.themotorombudsman.org/cons ... le-reports and https://www.iaea-online.org/find-an-engineer.

(You could even spend money with an Independent garage to have that Clutch re-learn procedure done. As a matter of course, they should see any 'proprietary' fault codes (that your generic code reader can't) - and you would at least be "doing something positive"...)

The way I see it panning out, is that the dealer will find no fault codes, drive it round the block and say "it feels ok to us", or "they all do that". You need to demonstrate that something is definitely wrong/different with your vehicle.

(Back in 1989, I wasted a day's holiday returning a Yamaha motorcycle to the dealer, for them to diagnose a fault. When I returned (many buses later), I was told "it felt fine" and Yamaha wouldn't pay for any more investigative work. Disgruntled, I went home and set about fixing it myself - it turned out it was just a dead spark plug, but their 'technician' was seemingly perfectly happy with an engine that only ran on 3 cylinders )

Can you find another similar model to have a test drive in, for a comparison? If the supplying dealership won't help, perhaps you can go further afield. You'd think any decent dealership would be willing to help, with a potential Warranty Claim. (Or you could lie and say you want to sell the car to them; then they might road test your car for you and give a free opinion )

There are lots of reviews floating around, where people hate the DCT characteristics. Since I've never driven one, I can't comment further. Did you have a test drive? ... has something changed since then?

It does seem possible to easily damage a DCT, despite it being automatic and even if using the Smart Cruise Control (in a nutshell: it cannot be allowed to 'creep' around, slipping its clutch - but it won't stop you trying).

[TucsonOwner2024]

Hello everyone. So, strangely, these last few days it hasn't shuddered at all??? Someone said because the weather's a bit colder? Has anyone had this happen intermittently with a DCT? Many thanks.

[Indalo1]

Someone said because the weather's a bit colder? Has anyone had this happen intermittently with a DCT?

I don’t know about colder weather improving things - I would have thought the problem would be worse in cold, damp conditions - however, rather than offer speculative advice from the comfort of my armchair, I would rather steer you in the direction of ‘Youtube’ where there are several helpful videos with regard to Hyundai/KIA DCT.

Most forum readers will have seen the attached example, several years old, but instructive nonetheless. My apologies if you have already seen it. The only thing I would add is that I pressed the Autohold button at the start of every trip I made in 6.5 years driving a DCT-equipped car. The guy providing the advice in the clip doesn’t make mention of that facility. Those who take advantage of the Autohold facility rarely, if ever, find a need to actually touch the EPB switch.

[TucsonOwner2024]

Hi everyone. So, another update for you all. While trying to park the car the following warning came up - AUTO STOP ERROR, SHIFT TO P OR N TO START ENGINE MANUALLY. Also with that, the oil light, the battery light and the handbrake light all lit up red on the dash board. Not good is it? We have an earlier appointment with Hyundai after constant phone calls to try and get an earlier date.

[Indalo1]

While trying to park the car the following warning came up - AUTO STOP ERROR, SHIFT TO P OR N TO START ENGINE MANUALLY. Also with that, the oil light, the battery light and the handbrake light all lit up red on the dash board.

I understand your frustration but could you tell us what happened subsequently? By that I mean, did you switch off, restart and all was ok or did you need to call on the breakdown people?

Where is the car now and is it still presenting the light show/warning message?

[TucsonOwner2024]

Hello everyone, I thought I would post an update on my car so far. In summary, they have to go through steps when a warranty claim is put forward. It's taken so long to get the car checked. They tested the car, completed the clutch software update around a week later, road tested it the whole weekend and they updated me to say it didn't shudder. So far, my wife and I have also driven it and no shudders have been present. In terms of the auto stop start, the battery was just under charged as we do short journeys. I hope the clutch software update has worked. Has anyone heard of it working before? They gave me a document which shows that there are two clutches. One has over 50 percent remaining and the second has over 60 percent. They reassured me that's normal and now this update has been completed I shouldn't have any problems. What's everyone's thoughts on the update? Thanks again.

[PhilHornby]

They reassured me that's normal and now this update has been completed I shouldn't have any problems. What's everyone's thoughts on the update?

So is this truly an "Update" - i.e. a change to the way that software controls the clutches - or is it the "Relearn Procedure" that I'd happened upon

It would make some sense for a "relearn" to be necessary as the clutch components wear - but it was something I hadn't come across before...

[TucsonOwner2024]

So it's called an Anti judder logic improvement. It does sound like a re learn procedure to be honest. It's a shame they couldn't change the clutch because it is worn and they can clearly see it's worn from their own diagnostic tests, plus it was juddering a lot for us. They did say to make contact with them again if it shudders.

[Saltcreek]

From what I recall some car manufacturers are moving away from DCTs because of their characteristics which people are not familiar with. I’ve personally never driven one but I had heard of people experiencing weird symptoms with them that were normal for a DCT.