My 2024 Kia Seltos, with approximately 50,000 miles, experienced a sudden shutdown while traveling at highway speed, cannot accelerate. The dashboard warning appeared as no key not detected and the brake pedal became extremely hard, making the vehicle difficult to stop. The vehicle subsequently restarted normally. This is a serious safety concern. I am requesting a thorough investigation into the cause of the shutdown, including the main electrical system, power distribution, engine controls, and brake-assist system. Please document this as a highway-speed shutdown with loss of normal braking assistance and provide a written diagnostic report before releasing the vehicle.
2023 Kia Seltos engine problems
20 complaints (43% of all complaints for this car). 1 crash reported.
- owner complaints
- 20
- of this car's complaints
- 43%
- crashes
- 1
- recalls
- 1
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Kia Seltos engine problems in other years
Specific symptoms reported on the 2023 Kia Seltos engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
Engine and engine cooling: engine: hard parts internal/mechanical
- What is wrong
- Kia America, Inc. (Kia) is recalling certain 2021-2023 Seltos and Soul vehicles. The piston oil rings may have been manufactured incorrectly, which can result in engine damage.
- Risk
- Engine damage can cause a vehicle stall or fire, increasing the risk of a crash or injury.
- Remedy
- Dealers will inspect and replace the engine as necessary, free of charge. Dealers will also install piston-ring noise sensing system (PNSS) software, free of charge. Owner notification letters were mailed April 4, 2025. Owners may contact Kia customer service at 800‑333‑4542. Kia's number for this recall is SC336.
Recall number 25V099000 · Recall details
Related investigations
Kia 25V099 Piston Oil Ring Recall Effectiveness
On August 6, 2025, the Office of Defect Investigation (ODI) opened Audit Query (AQ) 25001 to assess the implementation of Kia America, Inc.’s (Kia) remedy program for Safety Recall 25V099, involving incorrectly manufactured piston oil rings which may damage the engine causing a loss of motive power or fire. This AQ was opened in response to consumer complaints alleging of an ineffective remedy, inconsistent inspection results to determine whether an engine replacement was needed, and the unavailability of recall remedies. On August 11, 2025, an Information Request (IR) was issued to Kia requesting: 1) why the inspection test was revised from requiring a ‘cold’ engine to a ‘warm’ engine; 2) why the recall remedy was suspended from April 30, 2025 to May 7, 2025; 3) how Kia notified customers of the recall remedy suspension and the need to re-test engines that failed the ‘cold’ engine test; 4) the number of post-recall remedy complaints alleging engine or other engine related failures; and 5) the warranty coverage Kia is offering to vehicles that passed either inspection tests. On September 10, 2025, Kia responded to the federal safety agency’s IR: Kia reported the change in temperature from ‘cold’ to ‘warm’ engine testing was done to increase accuracy. The inspection test uses diagnostic tools that detects abnormal engine vibrations to identify damaged engines. From the initial launch of the Technical Service Bulletin (TSB) on April 4, 2025 through April 28, 2025, ‘cold’ engine testing resulted in a higher-than-expected failure rate when compared to the pre-recall warranty claim rate. This discrepancy led Kia to re-evaluate its inspection test and found that performing the inspection on a ‘cold’ engine can result in imprecise test results due to normal cold-start vibrations. Kia revised the inspection to ‘warm’ engine testing to minimize vibration interference. Kia sampled the field and performed a comparative analysis between ‘cold’ and ‘warm’ engine testing, and validated that ‘warm’ engine testing was more accurate in identifying damaged engines. Kia also reported the suspension of the recall remedy was due to a software error in the diagnostic tool, which was introduced in concert with the April 29, 2025 launch of the TSB that revised the inspection from ‘cold’ to ‘warm’ engine testing. The software error resulted in all inspection tests reporting false positives for a damaged engine. On April 30, 2025, Kia suspended the remedy until May 7, 2025, which was when the software error was corrected with the release of the latest TSB and software update. The recall remedy remains available to eligible customers. Kia reported owners were not mailed letters concerning the suspension to the recall remedy. Kia reasoned since it resolved the issue faster than it would have taken to draft and mail letters, Kia did not want to create unnecessary customer confusion involving an issue that would have already been addressed upon receipt of a letter. Kia also determined that mailing letters about re-testing engines was unnecessary since those vehicles were already at the dealer awaiting engine replacement. In most instances, Kia Customer Care agents would respond to customer inquiries related to the recall, including remedy availability, dealer issues, and questions about differing test results. Kia provided ODI a review of engine related consumer complaints received on post recall-remedied vehicles. Kia did not find any common patterns or trends related to those complaints following completion of the recall, as the complaints included issues that were unrelated to the subject defect. To aid in the diagnosis of whether a complaint is related to the recall, the remedy includes the installation of a software program, the Piston-ring Noise Sensing System (PNSS), that monitors the engine for unusual noise patterns (an indicator of potential damage to the piston oil rings), and alerts the customer by flashing the check engine light and setting Diagnostic Trouble Code (DTC) P1327. Kia confirmed that it is not offering any specific warranty coverage for this recall. Instead, Kia has instructed dealers to replace the engine, at no cost to the customer, with no time or mileage limitation, following the installation of the PNSS software and the presence of DTC P1327. On September 4, 2025, Kia issued Subsequent Repair Action (SRA) # SC336YZ, which provided engine diagnosis and replacement instructions for vehicles with a potentially related complaint following completion of the recall. Under this SRA, customers whose vehicles set DTC P1327 will have their engine replaced. If DTC P1327 is not set and it is unclear whether the issue is related to the recall, dealers are instructed to contact Kia's Technical Assistance Center to ensure the issue is appropriately handled. Kia notes that any issues determined to be unrelated to the recall are subject to the 10-year / 100,000-mile Powertrain warranty for original purchasers and a 5-year / 60,000-mile Limited Basic Warranty for subsequent purchasers. In summary, Kia identified the insufficiencies of its initial inspection test that led to a pause to its recall campaign, explained why it did not mail letters to affected customers about the paused campaign or revised inspection test, reviewed existing consumer complaints that did not identify any potential trends related to the recall, and identified its warranty coverage for any vehicles exhibiting qualifying engine symptoms. After review of Kia’s response to the IR, ODI has determined that no further action from Kia is necessary at this time, and ODI will close this AQ investigation accordingly. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
AQ25001
What 2023 Kia Seltos owners say
Most recent owner complaints, unedited.
Car was taken In for service and tech noted was low on oil and looked as if was burning oil and advised of a recall. My VIN for my 2023 didn’t come back as effected but clearly is having same issue as the recall on the others with same year and make.
I had two incidents with the Kia listed above involving the feature where the engine stops when at a light, and then turns back on when foot is removed from brake. The first instance happened in a parking lot while I was maneuvering into a spot. The accelerator sensor sent my car forward at a high rate of speed, and I missed a brick wall by inches. The second incident was much the same, maneuvering into a parking spot in my apartment building. Spaces are very tight and there is a lot of stopping, reversing, going forward. Again, I took my foot off the brake and the accelerator sensor sent my car speeding into the car parked in front of me. I did serious damage to my neighbor's car and go mine. I can turn off this feature, which I now do.
The gages fall all the way down, I’m not able to accelerate, engine light, traction light, tire pressure light, crash detection light, and other lights come on and prevents me from being able to drive. This happened on the interstate and almost caused an accident.
Car burns/ consumes oil constantly having to top off 2-3 quarts every 1,000 miles maybe even less I do my oil change every 3,000 miles Kia auto contract state I need to do oil change every 5,000
The contact owns a 2023 Kia Seltos. The contact stated that while driving at 10 MPH, there was an abnormal fuel odor coming from the vehicle. The vehicle was stopped, and the contact became aware of smoke coming from the engine compartment. A dealer was contacted. The vehicle was towed to the dealer to be diagnosed, and it was determined that the catalytic converter, turbo, and engine needed to be replaced. The vehicle was not repaired. The contact associated the failure with the federal safety agency Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING); however, the VIN was not included in the recall. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 62,000.
In April 2025 my vehicle had a recall (1: SC336 or 25V099), I brought it into a Kia dealership, they said it failed the test, and needed a new engine (i was without a vehicle for weeks, dealership said they did not have any loaners until after 14 days). They then call back weeks later saying the test was faulty, and i could have my car back. They said to keep an eye on it if there are any issues regarding the recall to come back. One morning i started my car, and was driving luckily in a 30mph, my car started to shake, would not speed up/move much, the check engine light came on, almost coming to a complete stop in the middle of a busy road. I was able to move it to the side, turn it off for a bit, once turned back on it was fine. My father who has a background in automotive mechanics checked the oil and noticed there was barely in it- (although just having it been changed) which looks like the oil consumption is fast and going somewhere. I immediately took it to a Kia dealership and they said I would have to go through a whole oil consumption test but it would not be a guarantee fix for engine replacement due to me not going to a dealership, or oil change business. Although my father who changes it, has all the receipts of oil purchase and capability of changing it himself. My oil is changed always in the proper timeline/miles. Which i have a alert on my car to notify me of this. I have noticed the kia does not give an alert when there is "low" oil. I have to drive around with extra oil, and check it almost daily just incase. I am worried that it will stop again but on a busy highway and result in a accident. I am concerned that the recall test was faulty and is resulting in major car issues, for something that is not even that old. As of yesterday i turned my car on and it was shaking and the engine light came on. I have not turned it on since, i will be returning to the dealership today.
Vehicle acts like it’s going to die. No maintenance lights well maintained. Rattle noise and acts like it’s misfiring. Went to turn at traffic light and almost got into a wreck due to no horse power. This has been happening since less than 40,000 miles but car dealership keeps saying “nothing is wrong” because there isn’t a warning light on! It’s getting worse!
We first noticed that the car was sputtering and jerking when accelerating at highway speeds. It wasn't consistent at first but continued to get worse over time and at more regular occurrences. White/grey smoke was spotted from the tailpipe whenever the vehicle was accelerating, either from a stop or when "resuming" on the cruise control. We brought the vehicle in to the dealership as the "service engine" light came on and explained what was happening with the car. They told us that there was an "intake valve" that was plugged and need to be replaced and that the on-board computer needed to be updated. We also had some routine maintenance done as well and they sent us on our way. Quickly after getting the car home we noticed that the original problem persisted and actually got worse. We checked the recalls on our car and noticed that there are other recalls on other VINs for the same Make, Model, Year and engine type as our car and the symptoms of those recalls were exactly the same as our symptoms in our car. We returned the vehicle to the dealership and again the "service engine" light had come on. This time they got the code that says something to the effect of "cylinder scoring" and that we needed to have the engine replaced. The recall for the 2.0L Nu engine for 2023 Kia Seltos' that doesn't currently include the VIN for our vehicle is SC336. We had to replace the engine out of our own pocket and would like to see this VIN included in the recall that affects other vehicles of this similar Make, Model, year and engine type.
The contact owns a 2023 Kia Seltos. The contact stated that while driving at an undisclosed speed, there was gray smoke coming from the exhaust pipe. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the vehicle stalled on the drive back to the residence. The contact stated that on a separate occasion, while driving 70 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the RPM fluctuated, and the engine revved with gray smoke coming from the exhaust pipe. The check engine warning light was illuminated. The contact was able to coast to the side of the road and waited ten minutes before restarting the vehicle; however, the failure reoccurred a short distance afterwards, with the vehicle vibrating abnormally, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The vehicle was pulled into a parking lot and stalled. The vehicle was restarted and driven to the workplace where the vehicle stalled after being parked. After work, the contact drove the vehicle to the residence. The contact stated that while driving 30 MPH, the vehicle jerked and vibrated, and gray smoke was coming from the exhaust pipe, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The RPM fluctuated, and the engine revved. The contact was able to arrive at the residence, and the vehicle stalled. The vehicle was taken to the dealer, where it was diagnosed that the oil level was low and that there was a misfire in the engine. The vehicle remained at the dealer unrepaired. The contact was informed that an unknown part was clogged. The dealer changed the oil. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was unknown.
Questions about the 2023 Kia Seltos engine
Does the 2023 Kia Seltos have engine problems?
Owners have filed 20 complaints about the engine of the 2023 Kia Seltos, 43% of all its complaints, more than any other problem.
At what mileage do 2023 Kia Seltos engine problems start?
Not enough complaints include the mileage to tell.
Was there a recall on the 2023 Kia Seltos engine?
Yes, 1 recall: 25V099000. Check your VIN to see if your car still needs the free repair.
What year does the Kia Seltos have bad engine?
The Kia Seltos model years with the most engine complaints are 2021 (279 complaints), 2022 (49 complaints) and 2023 (20 complaints).
Other 2023 Kia Seltos problems
Electrical 16Visibility 6Driver assistance 5Brakes 4Transmission 4Body 3Airbags 1Seat belts 1Steering 1Wheels 1
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