NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
89 reportsClear category filterMileage unknown · Sep 4, 2026
Electrical SystemEnginePower Train
The vehicle has experienced intermittent stalling and near-stalling while driving. The problem began after a prior Kia engine replacement related to DTC P1327/P132700. After the engine replacement, the vehicle developed additional drivability and warning-light concerns, including P0420 and communication/CAN faults. An authorized…
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The vehicle has experienced intermittent stalling and near-stalling while driving. The problem began after a prior Kia engine replacement related to DTC P1327/P132700. After the engine replacement, the vehicle developed additional drivability and warning-light concerns, including P0420 and communication/CAN faults. An authorized Kia dealer later documented that the vehicle had stalled a few times, identified P0420, reported a clogged catalytic converter, and found 11 additional lost-communication/CAN-related codes. The dealer stated that approximately eight additional diagnostic labor hours would be required to investigate the remaining faults. The vehicle was returned with the intermittent stalling condition unresolved. The stalling presents a safety risk because the vehicle can lose motive power unexpectedly while being driven. The vehicle remains available for inspection. The dealer confirmed the stalling complaint and performed diagnostic testing, but the complete cause has not been determined. Kia previously performed an engine replacement related to the earlier P1327 condition, and the current stalling occurred afterward.
NHTSA ODI #11762208
34,000 miles · Jul 21, 2026
Engine And Engine CoolingPower Train
The contact owns a 2020 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled without warning while releasing the accelerator pedal. The vehicle restarted after each failure. The first dealer diagnosed the vehicle and retrieved DTC: P04100 (Camshaft Position Sensor A Circuit); however, the …
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The contact owns a 2020 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled without warning while releasing the accelerator pedal. The vehicle restarted after each failure. The first dealer diagnosed the vehicle and retrieved DTC: P04100 (Camshaft Position Sensor A Circuit); however, the repair failed to fix the vehicle. The vehicle was taken to Hendrick Kia of Concord (7550 Hendrick Auto Plaza NW, Concord, NC 28027); and the technicians informed the contact that the vehicle was not properly repaired. The vehicle was returned to the first dealer, and the dealer failed to duplicate the failure. The dealer dismissed the contact’s concern that the vehicle was consuming an excessive amount of engine oil. The contact was informed that adding one quart of oil per 1,000 miles was within normal operation of the vehicle. Upon investigation, the contact related the failure to Kia recall SC199. The manufacturer was notified of the failure and provided a case number and referred the contact to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 34,000.
NHTSA ODI #11751776
Mileage unknown · Jun 30, 2026
Power Train
While driving on the interstate at approximately 70 MPH, the vehicle suffered a sudden and complete loss of forward motive power. The engine revved, but the vehicle completely ceased forward acceleration and could not maintain highway speeds. This created an immediate safety hazard, forcing me to navigate across active lanes of …
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While driving on the interstate at approximately 70 MPH, the vehicle suffered a sudden and complete loss of forward motive power. The engine revved, but the vehicle completely ceased forward acceleration and could not maintain highway speeds. This created an immediate safety hazard, forcing me to navigate across active lanes of highway traffic without power to reach the shoulder, narrowly avoiding a rear-end collision. Once stopped, the vehicle completely refused to engage any forward gears (Drive). However, the transmission will still engage and move backward in Reverse. This is the second time this vehicle has experienced a total transmission failure in 6 years, despite having previously had the transmission replaced at an authorized dealership under Kia Service Campaign SC199. The replacement Intelligent Variable Transmission (IVT) component has suffered an identical, catastrophic mechanical failure to the first unit. The manufacturer’s previous campaign remedy failed to permanently resolve this severe highway safety defect.
NHTSA ODI #11747549
Mileage unknown · Apr 20, 2026
Electrical SystemEnginePower Train
Engine shut off while making a turn. Took car to mechanic and he stated that the car did not display any error messages. The car also over heated while driving in freeway.
NHTSA ODI #11732298
90,924 miles · Mar 6, 2026
Electrical SystemPower Train
The contact owns a 2020 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The automatic start warning light illuminated, and the engine seized. Additionally, the error message indicated that the automatic start feature was disabled; however, the contact stated that the automatic start …
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The contact owns a 2020 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The automatic start warning light illuminated, and the engine seized. Additionally, the error message indicated that the automatic start feature was disabled; however, the contact stated that the automatic start feature was enabled. The contact stated that while attempting to start the vehicle, the vehicle failed to start. After several attempts, the vehicle started. The contact disabled the automatic start feature. The contact stated that while the vehicle was decelerating, the failure reoccurred. The vehicle was taken to the dealer; however, a diagnostic test was not performed. The contact stated that the diagnostic test was incomplete. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,924.
NHTSA ODI #11722581
Mileage unknown · Dec 28, 2025
EngineFuel/propulsion SystemPower Train
The problems with the KIa Sol began with the "check engine" light continuously coming on in January of 2025. Took it to the dealership twice and numerous repairs were made and the vehicle continues to malfunction. It sputters and has created a dangerous condition to drive. For example, my 21 year old son was on the freeway and t…
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The problems with the KIa Sol began with the "check engine" light continuously coming on in January of 2025. Took it to the dealership twice and numerous repairs were made and the vehicle continues to malfunction. It sputters and has created a dangerous condition to drive. For example, my 21 year old son was on the freeway and the car started sputtering. Thank God that the truck behind him moved lanes when he saw the car was struggling or it could have ended tragically. That was incredibly scary. I took it to the dealership again. They kept for two weeks trying to find the root of the problem, I spent $4,000 to "fix" it. When I drove it around town it did the same again, which put my brother and I in danger. The dealership finally said that the car needs a catalytic converter, which I was quoted as costing approximately $5000 dollars. I have spent a lot of money to try to fix this car and have been in two dangerous situations because the problem was not located. I have been trying in good faith to work with the dealership and KIA corporate to put a new catalytic converter by requesting a good will gesture.
NHTSA ODI #11707385
Mileage unknown · Nov 28, 2025
Power Train
Vehicle transaxle will start or feel like is slips and wont go pass 40mph on the highway and has become a safety concern. This started about a week ago and continues. No lights on dash and dealer claims they cant duplicated concern. On the way to the dealer it was doing it and when we pickup the vehicle started doin again less t…
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Vehicle transaxle will start or feel like is slips and wont go pass 40mph on the highway and has become a safety concern. This started about a week ago and continues. No lights on dash and dealer claims they cant duplicated concern. On the way to the dealer it was doing it and when we pickup the vehicle started doin again less than a mile from dealer. They charge for diag and the car is under warranty. I went back to drop off vehicle and they are refusing to take the vehicle in. I have contacted Kia prior to the visit and will contact them next Monday.
NHTSA ODI #11701939
Mileage unknown · Nov 20, 2025
EnginePower Train
The engine began to sound like it was missing or sputtering. This occurred for a short period of time, and then the sound stopped. The next day the sound started again, shortly after engine seized while driving which created a very dangerous situation. After about 10 minutes the vehicle restarted, was making a sputtering noise,…
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The engine began to sound like it was missing or sputtering. This occurred for a short period of time, and then the sound stopped. The next day the sound started again, shortly after engine seized while driving which created a very dangerous situation. After about 10 minutes the vehicle restarted, was making a sputtering noise, and was driven a short distance into a parking lot. Still, no warning lights appeared on the dashboard, vehicle was towed to a KIA dealership. At the dealership, 4 days later, We were told that the vehicle was completely out of oil. The check engine light, nor the oil icon, came on at any time. There was no evidence of an oil leak of any kind. There has been no damage to the vehicle. The vehicle has received regular oil changes either at a dealership or at a business that supplies oil change services. The engine seizing, really with no warning, created a dangerous situation.
NHTSA ODI #11700672
80,000 miles · Oct 16, 2025
EnginePower Train
The contact owns a 2020 Kia Soul. The contact stated that the vehicle had shut off on several occasions while driving in traffic or while stopped at a stoplight. The contact stated that while the air conditioning was activated, the engine made an abnormally loud thumping sound before the vehicle shut off. The contact was able to…
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The contact owns a 2020 Kia Soul. The contact stated that the vehicle had shut off on several occasions while driving in traffic or while stopped at a stoplight. The contact stated that while the air conditioning was activated, the engine made an abnormally loud thumping sound before the vehicle shut off. The contact was able to restart the vehicle after shifting to park; however, the vehicle hesitated after restarting. The contact activated the hazard lights while the vehicle was off in traffic. The contact stated that there were no visible leaks, and no warning lights were illuminated during the failure. The message "Shift to Park and Restart Engine" was displayed and flashing. Upon investigation, the contact discovered that the failure might be related to NHTSA Campaign Number: 21V259000 (Engine). The contact sought assistance from an independent mechanic, who was unable to assist. The local dealer was called, but the contact received no answer. The vehicle was not diagnosed or repaired. The manufacturer was not contacted regarding the failure. The failure mileage was approximately 80,000.
NHTSA ODI #11693758
Mileage unknown · Jun 4, 2025
Power Train
Engine Knock and random engine shutoff, dealership filled apparent recalls: Changed piston rings, ECM Update, Update on ECM Logic, and unrelated update to anti-theft ignition protector. Recommends a entire engine replacement due to "internal failure" but failed to provide proof of damage or reasonable explanation of failure. …
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Engine Knock and random engine shutoff, dealership filled apparent recalls: Changed piston rings, ECM Update, Update on ECM Logic, and unrelated update to anti-theft ignition protector. Recommends a entire engine replacement due to "internal failure" but failed to provide proof of damage or reasonable explanation of failure. Presumably told would not be covered due to exceeding warranty by 2,975 miles, regardless of prior damage. Recall notice sent VIA mail days after visiting the dealership, visited May 23rd, 2025. KIA Failed to send notice within warranty mileage for damage recalls may have caused.
NHTSA ODI #11664878
NHTSA investigations
1DP22003 · Loss Of Motive Power
Opened Sep 12, 2022 · Closed Dec 12, 2023
Status: closed (inferred from source dates) · Engine
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.