Kia Soul shudder problems

Filed Nov 4, 2026 · Engine, Transmission · TX

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. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 23, 2026 · Transmission · 92,573 miles · TX

The contact owns a 2018 Kia Soul. The contact stated that while driving at 45 MPH, the vehicle stalled and jerked while accelerating and experienced severe jerking while decelerating. The failure had occurred on several occasions. On June 18, 2024, the vehicle failed to accelerate or shift properly. On January 15, 2025, the vehicle shuddered violently and nearly stalled. On April 14, 2026, the vehicle was jerking, and the transmission shifted gears improperly. The vehicle was taken to a dealer, and observed that the vehicle was consuming oil excessively. The dealer replaced the spark plugs and performed an induction cleaning and transmission valve service. The dealer was unable to duplicate the failure after a 36-mile test drive, after the service. From May 27 to May 29, 2026, the vehicle failed to start and was towed to the dealer again, where a new short-block engine assembly was installed. On June 2, 2026, a technician discovered that there was no oil in the engine, resulting in a critical crankshaft failure code. Despite the short block replacement and oil correction, the powertrain failures persisted, and the vehicle failed to exceed 50 MPH. The vehicle violently stalled and jerked while accelerating and decelerating, creating a safety hazard. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 92,573.

Filed Apr 18, 2026 · Engine · NV · fire

I had the oil changed on my car at a local tire and lube shop. Two weeks later I drove to Vegas (7 hrs one way). While in Vegas I started to hear a super faint clicking noise coming from under my hood, but no lights came on inside, so I assumed maybe it was nothing serious and would have it checked when I returned home 3 days later. On the way home (2 hrs from home) the clicking got louder. I attempted to pass some cars and, as I accelerated, the clicking got much louder and then I heard a loud clank and the car shuttered. I proceeded to pull over and got out of the car and saw small flames and smoke coming from under my car. A couple had pulled over with me and had a fire extinguisher which they used to put the fire out. Upon towing the car home I found a piece of metal hanging from a melted piece of plastic. I inspected it and discovered that it was a piece of a piston from my engine. There was also a puddle of oil and a streak of gasoline on the trailer that had come from my car. I experienced catastrophic engine failure. When the engine broke it punched a hole in my oil pan which caused a fire and burned a hole in my fuel line. I am unsure of what caused the engine to fail, but in seeing the recalls for the exact same thing happening to previously recalled Kia Souls I figured i'd check it out to see if I may be included in that. No lights came on alerting me to any problems. There were no signs of leaking oil. Just clicking that got louder and then a loud noise and shudder and fire.

Filed Nov 18, 2025 · Transmission · 51,986 miles · DC

The contact owns a 2017 Kia Soul. The contact stated that while starting the vehicle, there was a judder coming from the transmission. Additionally, while decelerating to come to a stop, the vehicle shook abnormally before accelerating while continuing to drive. The failure was intermittent. There were no warning lights illuminated. The vehicle was taken to the dealer, who recommended that the transmission be replaced after completing several judder tests. The vehicle was not repaired, and the failure persisted. The vehicle was taken to a second dealer, Beyer Kia (1125 W Broad St, Falls Church, VA 22046); to be diagnosed, and the failure was duplicated; however, the vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 51,986.

Filed Nov 18, 2025 · DC

The car lurches/judders upon startup and at low speeds. It has been serviced eight times for this issue by two authorized Kia dealers with no resolve.

Filed Nov 3, 2025 · Engine · NJ

On 8/12/25, my 2018 Kia Soul (approx. 126,000 miles) suddenly began shuddering at low RPM with a flashing check engine light, near-stalling, and smoke from the exhaust. A warning message appeared for an engine control issue. Prior to failure, the engine intermittently knocked and displayed an oil pressure warning light. The engine burned oil at an excessive rate between routine oil changes. At the Kia dealership, diagnostic codes P0300 and P0303 were found. The dealer reported a burnt valve and seized starter, estimating $2,960 for valve repair or $6,437 for engine replacement, and stated these were not covered under Kia’s extended warranty or E2 Class Action Settlement because no P1326 code appeared. However, the symptoms match the rod bearing wear defect already covered under the E2 settlement. The dealer refused to perform the bearing clearance test (Kia’s required diagnostic for this defect) without payment, even though the settlement and extended warranty specify Kia must cover all inspection, diagnostic, and repair costs for potential rod bearing failures within the 15-year/150,000-mile coverage period. The engine failure created a serious safety risk when the vehicle lost power and nearly stalled in traffic. The burnt valve and seized starter are likely secondary effects of bearing-related long block failure. Kia’s refusal to inspect the vehicle without charge contradicts the settlement’s intent and prevents proper diagnosis of a known defect. I request that the federal safety agency investigate Kia’s handling of inspection and warranty coverage for vehicles showing these symptoms but lacking code P1326.

Filed Sep 8, 2025 · Engine · 30,000 miles · MI

The contact owns a 2021 Kia Soul. The contact stated that while accelerating from a complete stop, the vehicle shuddered, and there was an abnormal rumbling and clunking sound coming from the engine. The contact had received notification of the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling), and the vehicle was taken to the dealer, where the piston-ring noise sensing system (PNSS) software was installed; however, the failure recurred and progressively worsened. The contact stated that while driving at various speeds, the vehicle stalled. The contact was able to pull over to the side of the road and restart the vehicle. The check engine warning light was illuminated. The contact stated that the failure persisted, and the vehicle could not be restarted. Additionally, the vehicle experienced excessive oil consumption. The vehicle was towed to the dealer, where the starter was replaced; however, the vehicle was not repaired. The dealer diagnosed that the engine had failed and needed to be replaced. The contact related the failure to the recall, but the dealer informed the contact that the repair could not be covered under the recall. The manufacturer was notified of the failure several times, but no assistance was provided. The vehicle was not repaired. The failure mileage was approximately 30,000.

Filed May 27, 2025 · Engine · 60,000 miles · CT

The contact owns a 2021 Kia Soul. The contact received notification of the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling). The contact stated that on three occasions while driving at various speeds, the vehicle started shuddering mildly and then stalled. The vehicle was able to be restarted after each failure. The vehicle was taken to a dealer where it was diagnosed and determined that the engine software needed to be updated. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

Filed Mar 28, 2025 · Engine · 20,000 miles · IL

The contact owns a 2021 Kia Soul. The contact stated that while driving at various speeds and accelerating, the vehicle occasionally shuddered or stalled, forcing the contact to pull over onto the side of the road to restart the vehicle. The check engine warning light was illuminated. The vehicle was taken to a local Auto Zone, where a diagnostic scan retrieved information for a cylinder #1 misfire. The vehicle was taken to a local dealer, where the vehicle was diagnosed, and the contact was informed that further diagnostic testing was required to determine the cause of failure. The vehicle was not repaired. The contact referenced the federal safety agency Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING) as a possible cause for the failure. The manufacturer was notified of the failure. The approximate failure mileage was 20,000.

Filed Mar 17, 2025 · Engine · 80,000 miles · IL

The contact owns a 2022 Kia Soul. The contact stated while stopped at a traffic signal, the brake pedal was depressed, and the vehicle shuddered and then stalled. The contact stated that while attempting to restart the vehicle, the check engine and battery warning lights were illuminated. The contact was unable to restart the vehicle and the vehicle was towed to a dealer. The dealer diagnosed the vehicle and determined that the engine had failed and needed to be replaced. The dealer advised the contact that the failure might be related to the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling); however, the dealer would not replace the engine. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 80,000.