Bought two 2019 Sorento SXLs and both have same problem with stumbling hesitation between 25-55 mph when accelerating or going up inclines. Dealer says it’s a solenoid in new 8 speed tranny and all do it. Very frustrating for intown driving. Called Kia and they just referred me back to dealer. Love the car other than that. 26.5 mpg on 2600 mike trip from VA to FL and back. Mostly I95 at 75-80 mph.
2019 SXL engine/trans stumbling hesitation
Skyking
181 - 200 of 201 Posts
Your 2015 Sedona may have the same V6 as we get in the Sorento but it does not have the 8 speed transmission which is when this problem started occurring. I think everyone with a 2016-2018 V6 Sorento with the 6 speed is happy with the performance and doesn't get any of these hesitation issues. I also suspect that the tuning for the V6 has changed over the years and further suspect it's different for South Africa than the US.
Well, got our 19 V6 back from the dealer after a month. ECM came in a lot quicker than expected. So far so good. Need to put some more miles on it but the hesitation seems to be gone and it hasn't stalled. Exact wording on the invoice states that they scanned it AFTER they experienced it stalling on them. Found code P062B00, code for internal control module failure fuel injector. Weird that it didn't show up after the first dozen times it stalled. Once the dealer had it stall on them, then the engine light came on. I see other similar issues across the board on Kia's I'm wondering if they have some bad quality control on these ECUs. ECU isn't cheap, almost $1k, glad this was covered under warranty.
Hello, I've been following and looking through quite a few posts about the Sorento and the engine/transmission stumbling/hesitation. I have not found any definitive answers on here. Has anyone had a dealer actually do something to remedy this or heard from Kia in regards to this? Does anyone have anything specific I can take to the dealer and tell them to do? If you all are filing complaints with Kia, where do I go to do this?
I recently bought a 2020 EX Sorento with 30 miles on it. Within the first week I noticed the stumbling/hesistation happening quite frequently. It feels like when you drive a manual transmission and shift into a high gear too soon. We took it to the dealer we purchased from (2 hours away). The sales manager claimed he had never heard any complaints about this. Service manager said a transmission reset is what they do and that it had to do with the auto adjusting transmission. They reset the transmission and it seemed to help at first, but then it just went back to the stumbling/hesitation. Asked our local dealer about it and they too said that sometimes do the transmission reset but that overall it's just something this new transmission does.
This is so frustrating to have to be dealing with on a brand new car. This is the first NEW car I've ever bought and feel like I will NEVER do that again. It just makes me sick to my stomach and would gladly return the car if I could! Makes me wish I never got rid of my Toyota.
I recently bought a 2020 EX Sorento with 30 miles on it. Within the first week I noticed the stumbling/hesistation happening quite frequently. It feels like when you drive a manual transmission and shift into a high gear too soon. We took it to the dealer we purchased from (2 hours away). The sales manager claimed he had never heard any complaints about this. Service manager said a transmission reset is what they do and that it had to do with the auto adjusting transmission. They reset the transmission and it seemed to help at first, but then it just went back to the stumbling/hesitation. Asked our local dealer about it and they too said that sometimes do the transmission reset but that overall it's just something this new transmission does.
This is so frustrating to have to be dealing with on a brand new car. This is the first NEW car I've ever bought and feel like I will NEVER do that again. It just makes me sick to my stomach and would gladly return the car if I could! Makes me wish I never got rid of my Toyota.
Welcome to the forum.
I'm so sorry to hear that you are having the problem and that it's severe enough to make you regret your purchase. One member was able to solve his problem pretty much by using ethanol free gas. You may have seen that. Is there another dealer that you could take it to? Or take it back to the first dealer and have them ride with you to experience the problem. Maybe test drive another Sorento from their lot to see if it does the same thing. My problem is just about imperceptible now.
Hope you can work something out.
Let us know.
I'm so sorry to hear that you are having the problem and that it's severe enough to make you regret your purchase. One member was able to solve his problem pretty much by using ethanol free gas. You may have seen that. Is there another dealer that you could take it to? Or take it back to the first dealer and have them ride with you to experience the problem. Maybe test drive another Sorento from their lot to see if it does the same thing. My problem is just about imperceptible now.
Hope you can work something out.
Let us know.
Also from another thread that was closed:
I just wanted to chime in on this, as I've now had the 2020 8-speed for over a week. For reference, I had the 2016 6-speed prior to this. I really think the above quotes clarify the exact issue with the 8-speed transmission. Simply put: in SMART mode, it upshifts too far. That's the stumbling imo. I can clearly feel this when I'm traveling at a regular in-town speed (30-40 mph), and I then floor it. Clearly happens every single time I do that: it puts it in a gear that's too high for it to accelerate properly. But it never happens in any other drive mode, including ECO. I suspect that earlier 2019s were programmed a bit different, to the point where this could have been an issue with other drive modes. But that is pure speculation. Luckily, I drive it in Sport mode, so it's not an issue for me. Overall, I think the 2020 8-speed is much smoother and quicker to shift than the 6-speed was, especially when it's in manual mode.
Having said that, I think we should recognize that this thread has become a bit of a catch-all for anyone having hesitation issues since 2019.. many of which likely have zero to do with the transmission. I would just say if you do have an issue, try and use as much detail as you can when you post about it. And definitely experiment with it in manual mode, as that can help differentiate between an issue with the transmission vs some other component.
I've used all modes, it happens in all of them. Someone suggested ethanol free gas, I don't have any available stations near me (well one, but the pump has been out of order for months). I did put premium in last week and have not noticed a difference. When we took it back in one week after purchase we had the service guy ride along with us, he pretty much didn't acknowledge the issue just reprogrammed the transmission to get us to leave. Our local dealer at least admitted he knew about the issue, but had no solutions.
I would at least try 89 octane, even if it's not ethanol-free. I should have mentioned that in my post, but I always use 89. And definitely try manual mode. Not a great workaround, but it should tell you if the issue is in fact due to the automatic shifting logic or if the issue is caused by something else.
do you have the update name on the service paperwork? i am hoping to mention it to my dealer next time i am in for service...
To be fair, the word 'recall' is often used improperly. There's a HUGE difference between a recall and a TSB.
Trying to recall from memory, but have them look at TRA082.
Trying to recall from memory, but have them look at TRA082.
I'm unfortunately a newcomer to this problem. I have a 2019 Kia Sorento SXL with under 10k miles (original owner.) A few weeks ago the car would turn on, but would stall as soon as I tried to drive it. I took it to the dealer and it had these codes:
Р062В -- PowerTrain control module / ECM has detected an internal performance in fuel injection control system.
P0605 -- The powertrain computer is failing its read only memory. The PCM is not getting the high quality 12v control signal.
P2147 -- Low supply voltage in fuel injector.
They cleared the codes and the car started driving fine inexplicably. I took the car home and it drove fine for about 6 days. Then just randomly it refuses to turn on. I took it to the dealership and again it had a bunch of codes (only one in common):
P020000 Injector Circuit/Open
P062B00 Internal Control Module Fuel Injector Control Performance
P060500 Internal Control Module Read Only Memory (ROM) Error
C164908 CAN Time-Out ECM for ACC/SCC
This time they cleared them and the car won't start. They have no idea how to fix it. This is complicated by the fact that I live in Europe (exported the USA model) and they claim their re-programmer fails to do the transmission update. Does anyone have a good dealership contact who might be willing to recommend a diagnosis and help me order parts?
Kia USA told me I have to pay for all repairs myself and seek reimbursement. I found these ECMs but don't know if this would solve my issue: Genuine Kia Engine Control Module - Kia Parts Now
Thank you!
Р062В -- PowerTrain control module / ECM has detected an internal performance in fuel injection control system.
P0605 -- The powertrain computer is failing its read only memory. The PCM is not getting the high quality 12v control signal.
P2147 -- Low supply voltage in fuel injector.
They cleared the codes and the car started driving fine inexplicably. I took the car home and it drove fine for about 6 days. Then just randomly it refuses to turn on. I took it to the dealership and again it had a bunch of codes (only one in common):
P020000 Injector Circuit/Open
P062B00 Internal Control Module Fuel Injector Control Performance
P060500 Internal Control Module Read Only Memory (ROM) Error
C164908 CAN Time-Out ECM for ACC/SCC
This time they cleared them and the car won't start. They have no idea how to fix it. This is complicated by the fact that I live in Europe (exported the USA model) and they claim their re-programmer fails to do the transmission update. Does anyone have a good dealership contact who might be willing to recommend a diagnosis and help me order parts?
Kia USA told me I have to pay for all repairs myself and seek reimbursement. I found these ECMs but don't know if this would solve my issue: Genuine Kia Engine Control Module - Kia Parts Now
Thank you!
Too bad that video of the 8 speed is not in english. Its hard to follow and read the text. I expect a software update soon on these 8 speeds. I have had a little stumbling at idle both when cold and out of gear as well as hot at lights. Nothing major, I mentioned it to the dealer. No codes but nothing done or changed. I'll see...
Sounds to me like a squirrel chewed through one of your harnesses!
Kidding aside, those problems are all over the map. What they have in common is the ECU. Dealer should either be considering the associated harnessing and grounding for the ECU/ECM, which of course, is all over the engine compartment.
Of special interest is the P060500 error, which may point to a bad ground that is causing all of the errors you have been seeing. CM series Santa Fe models were famous for bad grounding to painted metal surfaces.
That particular bulletin was issued against the Nero, but for the same fault code.
A problem of this nature won't be easy to spot, but it may be a lot less painful than a new ECU.
Kidding aside, those problems are all over the map. What they have in common is the ECU. Dealer should either be considering the associated harnessing and grounding for the ECU/ECM, which of course, is all over the engine compartment.
Of special interest is the P060500 error, which may point to a bad ground that is causing all of the errors you have been seeing. CM series Santa Fe models were famous for bad grounding to painted metal surfaces.
That particular bulletin was issued against the Nero, but for the same fault code.
A problem of this nature won't be easy to spot, but it may be a lot less painful than a new ECU.
No, that was for George7.
Thanks. This disaster continues. My dealer in the USA was nice enough to order me a new ECU. They put it in a similar model car and programmed it for my VIN. They shipped it to me. The local foreign dealer installed it and can't re-program my keys to start the car. I got a PIN code from the US dealer but this foreign dealer still can't figure it out. They want me to ship the ECU back to the USA have the US dealer "wipe it" then ship it non-programmed here. My preference is to ship it back to the USA with my two keys and have the dealer program the ECU and the keys on an exemplar vehicle again, but I'm not sure if there are other parts of the car that are involved in key pairing. I'm at a total loss of what to do now.
Bought my 2019 Sorento SX 3.3V6/8-spd used in Feb this year, 34,500 miles on it. Noticed the hesitation on accel right away. Typical, come off the highway to a stop, then move out and the throttle seemed dead and the car sped up at less than the rate I expected. Kia dealer replaced the throttle body (found it had a bad TPS) on warranty few weeks back. Initially it was better and I figured the system had to "relearn" some inputs. This weekend we did a 600+ mile round trip, some interstate, mostly two lane. Got great gas mileage, 27+ easily and up to 29.9 avg a few times. But a few times again, came off the interstate to a stop on the exit ramp, and then pulled out feeling the hesitation again! Damnit. But yesterday driving home it seemed better again. Assuming the throttle body/TPS is not the issue I wonder if it is a software issue in the transmission controller? I have a simple older OBD reader that I'll try to see if any codes appear. No indicator lights show anything abnormal. Car drive fine otherwise.
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