KIA Complaints

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.

Driver side passenger back sliding door will not open or close properly. Door will jam and make a loud noise or will not open when trying to open. Took it the dealership 4 times they replaced the motor but the issue continues.

Office of Defects Investigation National Highway Traffic Safety Administration (NHTSA) 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Complaint – Premature Engine Failure Risk Due to Excessive Oil Consumption and Confirmed Cylinder Scoring – 2020 Kia Sorento Dear Sir or Madam, I am submitting a formal safety complaint regarding a 2020 Kia Sorento that is experiencing severe and abnormal engine oil consumption along with confirmed cylinder wall scoring. These conditions indicate progressive internal engine damage and present a significant risk of premature engine failure. The vehicle has been regularly maintained in accordance with manufacturer service recommendations. Despite proper maintenance, the engine began consuming excessive amounts of oil between normal service intervals. During inspection by the servicing dealership, visible cylinder wall scoring was identified within the engine. Cylinder scoring is a clear indication of internal engine wear and deterioration and can lead to rapid progression toward engine failure. Despite the confirmed presence of internal engine damage, the manufacturer has refused to authorize an engine replacement under the extended warranty program unless the engine experiences complete mechanical failure. The dealership has indicated that the vehicle must continue to be operated and monitored until catastrophic breakdown occurs before replacement will be approved. Requiring the continued operation of a vehicle with confirmed cylinder wall damage and abnormal oil consumption raises serious safety concerns. Progressive internal engine damage can lead to sudden engine seizure, stalling, or loss of power while driving, which creates a potential hazard for the driver, passengers, and surrounding traffic. Given the confirmed cylinder scoring and ongoing excessive oil consumption, I respectfully request that the National Highway Traffic Safety Administration investigate.

Safety defect P1326 code is a known indicator of rod bearing wear. When it triggered, the vehicle immediately went into Limp Mode, creating a significant safety hazard. The behavior aligns with the documented defect affecting NU GDI Engines and is not consistent with normal Engine wear. I have confirmed the KSDS software update was performed. I have taken the vehicle to Clay Cooley Kia of Plano and my service advisor has confirmed that the engine is defected per the NU GDI Engine Settlement and related federal safety actions.

Date/time of incident 03-16-2026 18:09-18:17 * Faulting component: Infotainment screen (screen to the right of gauge cluster) * Incident: While backing out of a parking spot and utilizing the cameras to watch my surroundings, the infotainment screen became unresponsive and began flashing between visual noise similar to 'snow' on old broadcast television, primary colored jagged/blocky artifacts, and a black screen. The screen would occasionally revert back to normal imagery but with severely lagging touch response and stuttering screen transitions. This persisted until I pulled over, parked the car, & restarted the vehicle. After restarting the vehicle the infotainment screen flashed: Solid Black -> Solid White -> Solid Red -> Solid Green -> Briefly solid black -> Briefly Solid Green -> Then the infotainment functionality returned to normal operation after a brief stutter. --I have a video of the last portion of this incident that I can share upon request * All camera related safety functionality became unresponsive/unusable during this incident * I've requested an appointment with the local Kia dealership * As this incident just occurred, I have not yet reached out to other parties * No warning lamps or diagnostic warning appeared during or after the incident

* Per paperwork from the car dealer, the ICCU failed along with a 3way valve assembly and a fuse blew. * While driving, the car went into a limp mode greatly limiting its maximum speed. * I was afraid to continue driving it and had the car towed to the KIA dealership. * It took exactly a month for it to be repaired. * The dealership kept the failed parts. * No warning lamps until the failure occurred. * When the failure happened a warning message stated "Check electric vehicle system!" and a battery symbol turned red. *Since it was taking what seemed like a long time for repair, I contacted Kia-Customer-Care and they assigned case number 25902713.

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.

I have been having issues with excessive oil consumption . No warning signs or notifications . Also had an issue with my car stopping in the middle of the road which could have been related to the above problem per my mechanic.

The contact owns a 2023 Kia Telluride. The contact stated that while driving at an undisclosed speed, the driver's rear door belt molding trim detached. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. The contact was informed that the parts were on back order. The contact received notification of NHTSA Campaign Number: 25V494000 (Structure). The manufacturer was made aware of the failure but provided no assistance. The failure mileage was unknown.

the paint, it is flaking and rusting underneath. yes it is avail for inspection the paint flakes off in sheets while driving down the road it has been seen by the local dealership i first started noticing it when i was washing the vehicle.