2021 KIA SOUL Complaints

The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound coming from the vehicle with the check engine warning light illuminated. The vehicle idled abnormally rough, and the engine was pulsing. The oil level was checked and was noticeably low. The contact added oil to the engine. The vehicle was taken to Precision Auto Care for an oil change. The contact was informed that the oil level was low. The contact informed the technician that the oil had been recently topped off. The contact was informed of the excessive oil consumption. The contact was provided with information on NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced or repaired before the recall repair could be performed. The vehicle was not yet repaired. The manufacturer was made aware of the failure, and a case was filed. In addition, the contact was informed that the vehicle had to be repaired before the recall repair was performed. The failure mileage was approximately 134,431.

My car experienced engine stall, fire risk, and piston ring failure while returning from a family road trip. Myself, my son, [XXX] old, and [XXX] pup was left in a ditch on a very busy road as the car stalled while driving. My VIN is excluded, however car experienced exact symptoms of recall SC2091. Codes P0300 P0304 P0302 P219D P0303 with no pressure in cylinder 2 and 4.This happened in 0ct 2025 and dealership and corporate do not want to exend goodwill to replace the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

DEALER ADMISSION OF NON-COMPLIANCE: I am updating my complaint to document that Kia of Streetsboro is officially refusing to perform the mandatory mechanical inspection required by Recall SC336. Despite the vehicle suffering from "Loss of Motive Power" (stalling in traffic) and "Abnormal Engine Noise," the dealership’s service department stated via text on March 17: "I asked my manager and he said as of right now since your vehicle passed the tablet we cannot do anything else." The dealer further stated: "I suggest calling consumer affairs since you have an open case and letting them know what's going on and seeing if they can help." TECHNICAL VIOLATION: The dealer’s refusal based on a "tablet pass" is a direct violation of TSB SC336, Step 18c, which states that if a vehicle exhibits mechanical symptoms that "contradict a PASS result," the dealer MUST open a Techline Case for further instructions. By their own admission, the dealer is choosing to follow a "manager’s" opinion rather than the Federal Recall Protocol. They are attempting to release a vehicle that is actively stalling at intersections, which they define as an "Early Warning" system success, while ignoring the actual mechanical failure (the stalling). SAFETY RISK: This is a documented Ineffective Remedy. The dealer is punting the safety diagnosis to a "Consumer Affairs" call center rather than performing the borescope and Techline escalation required by the NHTSA. I am reporting this dealer for knowingly attempting to return a stalling, unsafe vehicle to a consumer while claiming the recall is complete.

My 2021 Kia Soul is exhibiting a severe safety defect documented in Recall SC336: frequent, unpredictable stalling in traffic ("Loss of Motive Power") and audible engine knocking. These symptoms create a high risk of a rear-end collision or being stranded in a dangerous traffic situation. The vehicle is currently at Kia of Streetsboro. Despite being provided with evidence of these active mechanical failures, the dealership is attempting to "remedy" the safety recall based solely on a "Pass" result from the Piston Ring Noise Sensing System (PNSS) software diagnostic. As the TSB SC336 notes that the root cause is physical damage to cylinder walls caused by defective piston oil rings, a software diagnostic "Pass" is not a physical repair and does not address the existing mechanical stalling. I have not received any status updates or communication from the dealership service department since Friday. The dealership is refusing to perform a borescope inspection or open a Kia Techline case to investigate the stalling, effectively denying a proper safety remedy. I am reporting this as a failure of the manufacturer and dealership to provide a safe and effective remedy for a known life-safety defect. The car remains unsafe to drive.

I am filing this complaint to report a serious safety failure involving the service braking system and the failure of Forward Collision-Avoidance Assist (FCA) and Automatic Emergency Braking (AEB) on my 2021 Kia Soul. During an imminent collision event, the vehicle failed to brake as expected, and FCA/AEB did not activate, despite conditions that should have triggered emergency braking. This created an extremely dangerous situation and placed me and other motorists at risk of serious injury or death. The vehicle is currently subject to an active recall and has now been inoperable at the dealership for approximately one month under the lemon law process. The failure involved federally regulated safety systems, not supplemental or convenience features. I reported this incident to Kia America Customer Care, but the manufacturer has declined to conduct a manufacturer-level safety investigation unless I personally pay for removal and shipment of the ACU/Event Data Recorder (EDR). Kia America has also declined to provide any transportation assistance while the vehicle remains unsafe and inoperable and has referred the matter back to the dealership and my insurance instead. Kia America has stated in writing that they rely solely on dealerships for diagnosis and repair and that they will not investigate further unless I incur additional costs. This refusal to independently investigate a braking system failure raises serious safety concerns, particularly given the potential risk to other drivers if this defect is not addressed. Due to the prolonged loss of use of the vehicle, I am experiencing significant financial hardship and risk to my employment, as I can no longer afford a rental vehicle. I am submitting this complaint so that NHTSA is aware of a potential defect involving brake system failure and non-functioning collision-avoidance systems on this model.

1. Component or System Malfunction Engine (internal piston/piston ring system) is malfunctioning. The vehicle exhibits clanking noises (“marbles in a can”) and cuts off or stalls unexpectedly while driving. The car is available for inspection by a Kia dealer or independent mechanic. 2. Safety Risk Vehicle loses power while driving, which is extremely dangerous, particularly on highways or in traffic. Stalling while moving poses a risk of collision, loss of steering or braking control, and endangers both driver and others. This makes the vehicle unsafe to drive long distances. 3. Reproduction of Problem Symptoms have been observed consistently during normal driving and acceleration. Not yet confirmed by a dealer, but the stalling is reproducible during operation. 4. Vehicle Inspection The vehicle has not yet been inspected by the manufacturer, dealer, police, or insurance representatives. Immediate inspection is recommended due to engine stall risk. 5. Warning Lamps / Symptoms Clanking engine noise noted prior to stalling. Engine cutting off/stalling occurs while driving. No warning lights illuminated prior to stalling. Symptoms first appeared during recent driving prior to planning transport or repair. 6. Additional Notes The vehicle is a candidate for Kia engine piston/piston ring recall (SC209 / SC336). Owner recommends urgent inspection and repair to prevent potential engine failure and safety risks.

Vehicle consistently stalls at complete stops in traffic. After the engine stalls, it requires a manual restart to resume operation. This creates a severe safety hazard, as the vehicle becomes immobile at intersections and in stop-and-go traffic, increasing the risk of a rear-end collision. The dealership is refusing to perform the necessary diagnostic for the engine stalling issue under the Havis v. Kia Settlement/KSDS recall protocols, claiming maintenance gaps, despite the vehicle having 0 open campaigns and the KSDS software update previously installed. This stalling issue is a known defect currently under NHTSA investigation (Audit Query AQ23-001) for this specific model and engine.

Check engine light on due to catalytic converter, took it to Kia motors in Bakersfield, California due to recall let them know that there was a check engine light on after buying the vehicle and only having it for one month and I thought it was due to the recall, which was on oil, piston rings, the dealership stated I could give all my paperwork that I had in regards to that, and if the engine failed, they would take care of it. After the test for the recall was done the engine failed and then a few days later a new updated recall, came out where the engine had to be running hot for the test to be done and then my recall passed so nothing was ever fixed with my vehicle. I believe that the catalytic converter is bad due to oil running into or around the catalytic converter. I also believe due to the malfunction of the oil, piston rings being bad/malfunction or whatever the recall was on is a determination of why my check engine light is on stating it’s a catalytic converter I believe if I continue driving my vehicle in the condition that it’s in it eventually will catch fire due to the issue.

My 2021 Kia Soul is having the same piston issues leading to engine failure as other previously recalled Kia Soul vehicles but for some reason my VIN is not part of any recall. Now it has been determined there is heavy scoring in my engine and I will need a new engine. My car is only 5 years old and there should be no reason for such major engine damage. My car has stalled on me while driving and other very similar issues as described on previous recalls. How does NHTSA determine when a certain model/year of car needs to be part of a national recall?

The entire car is dead from the engine to the key function completely dead. The car broke down 3 time in the middle of the street which could've caused a serious crash putting my safety and others at risk. The problem has been addressed to two different dealers and Kia corporate without resolution. I did make a police report about the mold infestation inside the car. I did now see any warnings prior to the complete reck. The cars been dead from the past 3 months. Both dealers are refusing and/or delaying any type of resolution in fact they gave me even more pressure. Causing me more anxiety than tranquility. Elevating my emotional health.