2021 Kia Soul problems

“Vehicle completed Safety Recall 25V-099 (SC336) in April 2026 and developed internal engine noise and stalling. McGrath Arlington Kia (Palatine, IL) recorded a technician video confirming lower engine vibration noise, then deleted the video, ran a late PNSS test (PASS), and Kia Corporate confirmed the dealer omitted the technician's lower-engine noise finding from the mandatory Bulletin SC336YZ Section 2 Techline case to push a customer-pay repair”

“The contact owns a 2021 Kia Soul. The contact stated that on several occasions while stopped at a red light, the engine seized. The manufacturer was notified of the failure. The contact stated that the oil warning light was illuminated. The vehicle was taken to a dealer to be repaired under NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, after the dealer diagnosed the vehicle, it was determined that the camshaft needed to be replaced. The dealer refused to perform the recall repair, specifically claiming that the issue was under an engine warranty and not a recall; even though the VIN tool indicated that the VIN was included. The failure mileage was 66,000.”

“My 2021 Kia Soul Turbo with the 7-speed dual clutch transmission (DCT) has an ongoing transmission failure. It has difficulty reversing and accelerating, and the check engine light is on. This creates a safety risk when pulling into traffic or backing up. In September 2026, Westside Kia (Katy, TX) did not identify the root cause and offered only non-warranty repairs, which I paid for and which did not fix the problem. On [XXX], Joe Myers Kia (Houston, TX) diagnosed a failed transmission shift actuator (part #43810-2D205) and quoted $2,777.39. I am the original owner at about 76,500 miles, within Kia's 10-year/100,000-mile powertrain warranty. Kia denied coverage, saying the actuator falls under the expired basic warranty (Kia case #[XXX]). Kia has previously issued Service Action SA396 (DCT replacement on 2019-2020 Soul for harsh shifting and transmission-related check engine lights), TSB TRA083 (7-speed DCT judder), and TSB TRA085 (DCT actuator rod adjustment), indicating known problems with this transmission.”

“Mi carro hay veces que prende la luz de la engine, lo lleve a checar y salió en la computadora que era un problema de Power Train system, que era secondary DTCs P1C28 Y P1C28000, lo busque en Google y salía que era un problema muy recurrente en Kias souls y sorentos. Que podría causar incendios”

“What component or system failed or malfunctioned? The engine (piston rings) and catalytic converter failed. The catalytic converter is available for inspection upon request. How was safety put at risk? The engine ran low on oil without any external leak, causing warning lights and engine rattling. Low oil pressure can lead to sudden engine seizure or fire. The failed catalytic converter can clog, causing loss of power on highways and increasing the risk of a crash. Has the problem been confirmed by a dealer or independent shop? Yes. A Kia dealer found the engine 2 quarts low, with no external leak, and recommended replacing the catalytic converter at a cost of over $6,000. An independent mechanic confirmed code P0420, which indicates catalytic converter failure. Has the vehicle been inspected by the manufacturer? The vehicle was inspected by an authorized Kia dealer, but they did not complete the required inspection for Recall SC336 (defective piston oil rings). They did add the software. Were there warning lamps or other symptoms? Yes. The oil pressure warning light and other dashboard lights came on. The engine made a rattling noise. The vehicle later felt…”

“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…”