2021 Kia Soul

We are experiencing problems consistent with the issues identified in recall SC336, which pertains to defective piston rings potentially leading to increased oil consumption and engine damage. Specifically, for an extended period of time we have encountered significant oil consumption, the check engine light turning on repeatedly, engine overheating, and abnormal temperature gauge readings. Additionally, our vehicle has stalled multiple times while driving, lost power, and exhibited jerky acceleration, along with strange noises from the engine. These stalling incidents, in particular, were extremely frightening and created unsafe conditions on the road for our traveling family. We previously contacted members of Kia’s corporate office in early April 2025 (we can forward email), but unfortunately, we initially never received a response from Kia with respect to our email. We brought our vehicle to Wesley Chapel Kia for the recall service on June 9th; however, no repairs were made. Our engine was not replaced. We were told our vehicle passed the vibration test, which we find insufficient. The check engine light returned shortly after the visit to address the recall. We are aware that Kia changed the procedure for the recall inspection after the initial recall was announced. We have read accounts online from other Kia owners whose vehicles originally failed the recall inspection and were due for engine replacement—only to pass under the new testing protocol. This shift in procedure was never explained to us during our recall appointment, and we have serious concerns about the effectiveness of the updated remedy program. The lack of transparency and the unresolved issues with our vehicle leave us deeply dissatisfied and looking for answers. We are seeking assistance in understanding what steps we can take to ensure the safety and reliability of our vehicle and to hold the manufacturer accountable for following through on their recall commitments.

In May 2025, my 2021 kia soul engine suddenly seized while I was driving close to my home. I took it to my local Kia dealership to have it inspected in which they said my engine needed to be replaced but did not identify exactly what caused my engine to fail. I have not had any issues with my car before this happened and kept up with oil changes, etc.I also told the service department about the recent recall on my vehicle regarding faulty piston rings leading to engine failure. Due to not having an extended warranty, I was told the replacement would be around $10,000. I reached out to them Kia Customer care to see if they could provide assistance considering this was something I did no t expect to happen. I decided to have it towed to a mechanic my family knows and he had my engine rebuilt for lower cost. Today (8/21/2025), we picked up the car which started out good initially but still demonstrated the same issue with the engine failing after driving it one time. My VIN is not in the recall list but I am not understanding how my vehicle which was performing perfectly, all of sudden seized on me. Prior to my engine failing, there were no dashboard indicators that anything needed to be inspected. They appeared after the engine seized. Fortunately, when my engine seized, I just turned into my neighborhood but I'm sure if I was a couple seconds or minutes late, my safety would have been at risk considering I live off a busy highway.

My vehicle was originally diagnosed (after recall) with a defective engine and I was to be notified when the replacement engine arrived. On a subsequent visit to the dealer to repair an additional check engine light episode I was informed that the replacement engine was no longer needed and that Kia was installing software to monitor the condition of the piston rings. On [XXX] (third incident) while operating my vehicle in heavy traffic the check engine light went on and the vehicle immediately started to lose power and developed an engine noise which continued as i immediately drove to the Kia dealership and when I arrived there was a burning smell when I got out of the vehicle and I was told it would be two weeks before they would diagnose the incident. The vehicle continues to sit at International Kia of Orland Hills, Il 60462. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Kia Soul. The contact had received notification of NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING). The vehicle was taken to a local dealer and repaired under the recall; however, the failure occurred. The contact stated that soon after the recall repair, the failure occurred while driving at an undisclosed speed and accelerating. The contact stated that the engine sputtered and stalled with the check engine warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact was informed that the recall repair had already been performed on the vehicle. The manufacturer was notified of the failure. The approximate failure mileage was 81,073.

When the car was originally going out, the check engine light came on and the engine was making a funny sound, then after we filled up on gas like 10-15 miles later, the engine shut off and stopped accelerating but all of the electronics were still coming on, the battery and oil pressure light came on as well, we pulled it over and when trying to start, it was cranking but not coming on, but the electronics and everything was still working just fine, radio worked and my phone was charging, eventually when we tried cranking again, the engine started rattling and grinding . Towed it to Kia. KIA said they did every test possible on the car and are about 90% sure that the car needs a new ecu, but that kia doesn't manufacture that part anymore and that if they made it, it could take 2 weeks to 4 months, they're saying that it's not apart of the warranty so it would be expensive. They said that the best bet would be to trade in the car. Then they asked for all receipts for oil changes. Then they said it's the camshaft. "Wanted to reach out to let you know we need to replace the Cam shaft, the camshaft phaser and valve cover gasket before we can do the test for the recall this will cost about $1530". He said this after already saying they tested it. They are refusing to repair the recall. This is the Kia dealership in Gettysburg PA.

The contact owns a 2021 Kia Soul. The contact stated that the vehicle experienced a transmission failure, and the transmission was replaced by the dealer. The contact stated that the dealer also replaced the rack and pinion due to an abnormal clunking sound coming from the steering wheel. Additionally, the contact stated that the vehicle was experiencing abnormal oil consumption. The vehicle was taken to the dealer, where an oil consumption test was performed. The contact returned to the dealer after driving for 1,000 miles on three occasions. The dealer determined that the vehicle was not experiencing excessive oil consumption. The dealer replaced the motor mounts. The contact related the abnormal oil consumption to NHTSA Campaign Number: 21V259000 (Engine), which was previously performed on the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 4,815.

The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, there was an abnormal ticking sound coming from the engine compartment, and the steering wheel was slightly difficult to turn. There was no warning light illuminated. The vehicle was not diagnosed or repaired by the dealer or an independent mechanic. The contact related the failure to NHTSA Campaign Number: 21V259000 (Engine); which was previously performed on the vehicle. The manufacturer was not notified of the failure. The failure mileage was 24,000.

While driving, the vehicle began running rough and stalled shortly after. It would not restart. The vehicle was towed to a dealership, where they diagnosed “excessive cylinder wall scoring” and no engine compression. This matches the symptoms described in Recall SC336, which affects piston oil rings and can lead to engine failure, stalling, or fire. The dealer confirmed the engine won’t turn over and compression is lost, but they refused to perform the required piston ring inspection under the recall. They stated I would need to pay for an engine tear-down first. However, according to the recall remedy, the inspection and engine replacement should be performed free of charge if symptoms are present. The issue occurred without warning, leaving me without transportation and unable to safely pick up my child. I have opened a case with the manufacturer and am awaiting their review.

The contact owns a 2021 Kia Soul. The contact received notification of NHTSA Campaign Number: 21V259000 (Engine). The contact stated that the check engine warning light was flashing. The vehicle was taken to the dealer for the recall repair. The dealer cleared the check engine warning light code and deployed the Piston Ring Noise Sensing System (PNSS) software. The dealer advised the contact to bring the vehicle back if the failure recurred. The dealer marked the recall as completed. The contact stated that the failure recurred, and the vehicle was taken back to the dealer, where DTC: P1327 (Piston Ring Noise Sensing System (PNSS) was retrieved, and the dealer diagnosed the vehicle with piston vibration. The dealer determined that the engine needed to be replaced; however, the dealer informed the contact that the failure was not related to the recall. The vehicle was not repaired, but the dealer cleared the diagnostic trouble code. Additionally, the vehicle was taken to AutoZone, where DTC: P1327 (Piston Ring Noise Sensing System (PNSS) was retrieved, and the contact was informed that there was a vibration in cylinder #3. The contact stated that the failure recurred, and the vehicle was taken back to the dealer, where DTC: P1327 (Piston Ring Noise Sensing System (PNSS) was retrieved; however, the dealer informed the contact that the vehicle passed the SC336 recall inspection test. The contact stated that the dealer performed the test in 20 minutes. The vehicle was not repaired. The contact stated that the engine was previously replaced at 67,000 miles. The dealer and the manufacturer informed the contact that once the district manager became available a determination would be made if the engine should be replaced. The vehicle was not repaired. The failure mileage was approximately 128,495.