2022 Kia Soul

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 NHTSA’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 NHTSA.gov.

The contact owns a 2022 Kia Soul. The contact stated that while driving 55 MPH uphill, there was an abnormal knocking sound from the rod bearings inside the engine. The contact stated that the rod bearings had gone through the engine block, and there was black smoke coming from the exhaust pipe. The vehicle became inoperable after the failure. The vehicle was towed to the dealer. The diagnostic test and repair were pending. The manufacturer was made aware of the failure. The failure mileage was approximately 101,000.

NHTSA ID

11751021

Incident

Jun 25, 2026

Mileage

101,000 mi

Backup camera intermittently glitches and cuts to a black screen. Display will also occasionally appear darker than normal. Concern began suddenly with no known cause. It first occurred after vehicle was parked for 10-11 hours.

NHTSA ID

11746542

Incident

May 13, 2026

• a theft attempt caused by the widely reported Kia software vulnerability (documented in my police report) • a display failure that Kia refused to repair • a recall that Kia refused to perform because the display was broken • repeated defects lighting, battery warning indicators never come on when the oil is beinf consumed • and now a complete engine failure on a 2022 vehicle

NHTSA ID

11743951

Incident

May 31, 2026

03/17/26: Kia Soul 2022 was brought into the dealership to have the safety recall (NHTSA: 25V099; Kia: SC336) addressed. There is a description of the service that says, “Piston Oil Ring.” Dealership stated everything was "good to go" upon completion of this service. Per dealership document, causal part says “Ring Set-Piston”, Issue number SC336. Issue Type: Safety Recall; Description: Piston Oil Ring. 04/20/2026: While driving, the engine light turned red/blinking. The car was immediately pulled over to the side of the road. It was towed to the aforementioned Kia dealership via AAA. The engine needed to be replaced. Regarding the engine: Issue number SC336Y1; Issue Type: Service Campaign; Description: DTC P1327 Engine R&R. 05/05/2026: While using the car, it would not move with attempt to accelerate from a 4-way stop. The oil light and battery light were red; the engine light was orange. A message on screen displayed: “Battery discharge warning. Please use the system after starting the vehicle.” When attempting to turn the key, the engine did not make any sound. Approximately 10-12 minutes later, I went through the same steps and the car turned on. Kia dealership was notified. Upon arrival to the dealership, I was told "these things happen," "it is likely the battery," and, "The fuel saving start-stop function that cars like the Soul have can lead to this kind of thing." It was also stated that the "battery was good, but the charge was low." Finally, I was told "the car should be fine to drive, since it made its way to the dealership" without issues. I verbalized the significant safety risk and stated I needed it assessed. The car remains at the dealership, as there is no root cause and this is a major safety hazard that, notably, occurred 6 days after the engine replacement. The dealership maintains that "there is nothing that can be done." This has been escalated to Kia Corporate. No issues with car prior to engine light turning red on 04/20/26.

NHTSA ID

11736890

Incident

May 5, 2026

Weeks before the vehicle completely shut down, my car began stalling and shutting off in traffic without warning while driving. I was usually able to turn the vehicle off and restart it, and it would come back on temporarily. At red lights and stop signs, the vehicle would power down, stall, jerk forward, and then begin moving again when I pressed the accelerator. On 05/01/2026, while stopped at a red light on my way to get gas, I noticed the vehicle vibrating unusually. I made it to the gas station, filled up, and drove away. However, as I entered a heavily traveled highway, the vehicle began shaking uncontrollably and completely shut off in traffic. I was unable to restart the vehicle and had to have it towed, and later towed again to a Kia dealership/service center. The diagnostic codes identified were: * P0014:00 – Exhaust Camshaft Position Timing Over-Advanced/System Performance (Bank 1) * P0017:00 – Crankshaft Position/Camshaft Position Correlation (Bank 1 Sensor B – Exhaust) * P0303:00 – Cylinder 3 Misfire Detected I am extremely concerned because the vehicle is only about four years old, and I purchased it a little over a year ago. I have previously taken the vehicle to Kia for recalls, including recalls related to engine issues. Based on my research and the symptoms of my vehicle, I believe the recall involving the piston oil rings may be related to the camshaft and crankshaft issues now occurring. I am concerned this may represent an additional safety-related defect or recall issue that has not yet been fully recognized by Kia. I am submitting this complaint to bring awareness to this issue and request that a proper investigation be conducted before more drivers experience a dangerous failure in traffic. I would also like to request direct follow-up regarding my specific vehicle and this incident. Due to the seriousness of the failure and the safety risk of the vehicle shutting down in active traffic, I believe my vehicle should be reviewed as part o

NHTSA ID

11736581

Incident

May 1, 2026

The check engine light came on. I took the jar to Kia and also requested for the piston recall to be repaired. I was denied due to an expired warranty. The engine stalled and stopped suddenly while driving in the street. Soon the care was no longer drivable.

NHTSA ID

11736494

Incident

May 4, 2026

My 2022 Kia Soul with a 2.0 Litre Engine is consuming lots of oil, I'm having to ad a quart every day. I have check engine lights for the catalytic converter and engine missfires. The car has always consumed oil between oil changes since I bought it new in 2022, and its gotten progressively worse. I've maintained the car as required by the manufacturer and have topped up the oil when low. I had the dealer perform an oil consumption test in June 0f 2025 at 60,275 miles. After 1000 miles the Dealer determined the car was consuming 8/10ths of a quart of oil after 1000. The dealer informed mt that Kia only considered 1 quart of oil or more after 1000 miles to be a problem. So I continued to change oil and top it off as necessary. The car continued to consume more and more oil, and I contacted Kia Customer Service In June, November, December of 2025 regarding the increasing oil consumption problem. In April I contacted Kia Customer service again stating the oil consumption had gotten much worse. The took my information an said someone woul call me. I called them again 5 days later and told them I had a check engine light regarding an engis miss and Catalytic convert code, and asked the expedite the call back. I've spoken with the expedited service person three times since the 25th of april and informed the that I'm having to add 1 gt of oil daily. The expedited serviec person informed me that Kia would not provide me with a loaner car or rental reimbursement until it was determined by Kia that there is a problem with the engine. She also said I should drop the car off and leave it with the Dealer, and call her back when I've done so. My car has 77731 miles on it, I've never missed and oil change, and I've always kept it topped off. I'm concerned the catalytic converter will plug up and leave me stranded, or worse, result in an engine fire!

NHTSA ID

11734807

Incident

Apr 25, 2026

My car stalled with no precursors. The engine and oil was maintain but the engined stall with out smoke or mixed oil. This error falls directly under the recall for pistion rings that cause engine failure. I brought my vehicle to Archer Kia and after two-three months of waited for the recall repair they stated that they could not repair the failed engine under the recall that causes failed engines.

NHTSA ID

11732207

Incident

Nov 21, 2025

TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION: CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) are not able to receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles that are not equipped with an immobilizer, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.

TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) did receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.

TECHNICAL SERVICE BULLETIN: KEY AND CYLINDER SET REPLACEMENT - This bulletin provides information to replace the driver’s door lock and trunk lid key cylinders on some 2019-2024MY Kia vehicles listed below. On affected vehicles, the stored key code may not correspond to the mechanical key profile, which can result in incorrect key cutting when the original key is lost or damaged.

TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).

TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whole Integrated Body control Unit (IBU) / Body Control Module (BCM) did receive the Ant-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.

CUSTOMER SATISFACTION CAMPAIGN: POSTCARD OWNER RENOTIFICATION (CS2311) - This document is the owner renotification advising that Kia is conducting Customer Satisfaction Campaign. Kia has developed a new zinc-reinforced ignition cylinder protector hardware upgrade and can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Prior notifications stated that this modification had to be performed by July 1, 2025, but the subject vehicles are now eligible until March 31, 2027, to have the ignition cylinder protector installed—if requested—at no cost through an authorized Kia dealership. (Mailing of these notifications to vehicle owners will be completed from December 19, 2025 through December 31, 2025)