There are 50 owner-reported engine complaints for the 2015 Kia Soulin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
My check engine light continues periodically turn on and off; diagnostics done by independent service centers shows the code indicating there's something wrong with my catalytic converter. I discovered the make and model of my vehicle has a recall for this issue, but upon contacting Kia directly and speaking with services members & customer care I was told that my vehicle does not fall under the recall even though it is showing the same signs as the vehicles that have. It has not been inspected by anyone other than the hired mechanic and I'm not entirely sure when the problem first began, but has been an ongoing issue for the last few months.
The contact owns a 2015 Kia Soul. The contact stated that upon purchasing the vehicle and driving to the residence, the check engine warning light illuminated. The contact used a code reader and retrieved DTC: P0420 (Catalytic Converter). The contact called the dealer and was informed that the vehicle was included in NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling); and four other recalls. The vehicle remained with the dealer for approximately 4 days before the contact was informed that the VIN was not under recall. The contact was provided with an estimate for the repairs. The manufacturer was notified of the failure but offered no assistance; however, the contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 145,000.
My 2015 Kia Soul (VIN: [XXX] ) experienced sudden catastrophic engine failure: loud pop, knocking, and immediate loss of power. The engine has a hole in piston #2 and a hole in valve #3. This is a known safety defect included in the Hyundai/Kia Theta II engine settlement. My vehicle has KSDS update installed, but Kia and the dealership are denying warranty repair unless a specific code (P1326) or rod-bearing damage is found. The engine failure occurred without warning and placed me in danger. Kia's refusal to cover a known safety defect leaves an unsafe vehicle unrepaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Owned vehicle for 1 year. On [XXX} the vehicle kept Stalling and wouldn't accelerate. Drove to service station. Had 4 coils and spark plugs replaced. Car was still not right- compression test confirmed engine failure. Had car towed to KIA dealer Matt Blatt rt 37 Toms River, NJ. Their diagnostic shows 3rd cylinder failure top engine. Class action lawsuit on engine failure coverage is for bottom engine failure. Regardless the entire engine needs replacement. There's thousands of these cars with both top engine and bottom engine failure- yet they will not assist in replacement. It seems ridiculous to know the engines are bad and only cover the 1 area- when the entire engine needs to be replaced Regardless of engine failure location. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2015 Kia Soul. The contact stated that while driving approximately 70 MPH, the vehicle started losing motive power. The check engine warning light was illuminated, and the vehicle stalled. The vehicle was restarted, but was sputtering and making abnormal sounds. The contact stated that the floorboard became very hot. The vehicle was towed to a local dealer to be diagnosed, and it was determined that the catalytic converter needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling); prior to the most recent failure with the catalytic converter. The contact stated that the catalytic converter was replaced three times. The manufacturer was informed of the failure. The failure mileage was approximately 101,000.
On the way back from Missouri to Oklahoma, while on the turnpike the engine made a clanking sound and lost acceleration power. The car shook some, luckily the car was able to steer of to the right side of the shoulder just before a bridge. Car came to a stop and would not start. It was snowing and a child was in the car. The closest person for help was 3 1/2 hours away. The hazard lights did work but the car was not started back up after the loud clunk and shaking. Was not sure what happened at that moment. Did not want any further damage to occur. Attempted to have the car towed closer to home was made. A decision was made to take it to the closes kia dealership. As we was trying to figure out what might have happened with the engine. We found there where multiple recall on the car. I was unaware of the recalls. 2 of the recalls are on the engine for piston rod damage. A family member whom is a mechanic believed that was what happened. I called Kia they confirmed the recalls were made. They said there was a fix. I never received the recall notices. They also asked me if I knew someone by the name [XXX] something. If the mail was in this person name but sent to my address. I would not have opened it or paid any attention other then sending it back with the mail man. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2015 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power, with smoke coming from the engine compartment. The check engine warning light was illuminated. The contact pulled into a parking lot, where the engine overheated, and there was oil leaking from the vehicle. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine had failed and needed to be replaced. The engine was replaced. The contact stated that later, while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken back to the mechanic, where it was diagnosed and determined that the catalytic converter had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 123,000.
The contact owns a 2015 Kia Soul. The contact stated that while her daughter was driving 20 MPH, the vehicle lost motive power and stalled. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling). The vehicle was towed to the contact's residence. The vehicle was then towed to the local dealer, where it was diagnosed and determined that three cylinders were misfiring. The vehicle was not repaired. The vehicle was towed back to the contact's residence. The manufacturer was not notified of the failure. The failure mileage was approximately 164,410.
The contact owns a 2015 Kia Soul. The contact stated that while the vehicle was idling or accelerating, the vehicle started shaking at the front end near the engine. The vehicle hesitated while accelerating. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 20V750000 (Engine), and the vehicle was towed to the dealer. The software update was performed; however, the failure persisted. The dealer informed the contact of DTC: P70300, which should have been resolved with the recall repair, which allowed the vehicle to pass the inspection as a successful repair; however, the failure persisted. The vehicle had not received any additional repairs. The contact found information on TSB: ENG222, NHTSA ID Number: 11014912 (Engine), which was related to the failure. The manufacturer was informed of the failure, then opened a case and informed the contact that no additional assistance would be provided. The failure mileage was approximately 89,600.
I am submitting this report regarding an ongoing issue with my Kia vehicle related to the recall for code P1326 (Knock Sensor Detection System / Engine Bearing Wear). The first time this issue occurred, Kia documented the problem and kept my vehicle overnight to perform what they referred to as an “engine soak.” I was informed that this procedure might resolve the engine performance and oil consumption problems. I was also advised that if the issue reoccurred within 15 years of vehicle ownership or before reaching 150,000 miles, Kia would replace the engine under the recall warranty. Recently, the same issue has reappeared, but Kia is now refusing to replace the engine, citing “gaps in maintenance” from the early years of my ownership. I explained that, at that time, my father performed all oil changes and maintenance at home to reduce costs, as I was a young driver living with my parents. Kia is requesting proof of oil or tool purchases from over ten years ago, which I no longer possess. Additionally, all vehicle-related documentation was left inside the car when it was stolen and broken into twice—incidents connected to the nationwide Kia theft issue that has been subject to another class-action lawsuit. As a result, I no longer have access to those records. During my initial visit, the Kia service representative, Jake, assured me that if the engine failed again and I maintained the vehicle properly, I would be covered for a full engine replacement. I have made every effort to comply with those terms, yet Kia corporate has denied my claim. I am requesting NHTSA’s assistance in resolving this matter and ensuring that Kia honors its recall obligations and prior representations made to me as a consumer.
Kia soul engines are known for burning through oil very quickly. the recall does not include my car because i have a 2.0L engine. The excessive oil consumption of my engine completely melted the inside of my catalytic converter. my car only has 106,000 miles, so this shouldn't be an issue. I had my check engine light come on, so the mechanic told me to use different gas and turned the light off. My catalytic converter being completely blocked and melted is directly related to the oil consumption of the engine. i had two mechanics comfirm this. I experienced a major loss of power, and inability to accelerate normally, which can be very dangerous. I was trying to accelerate uphill on a road with little shoulder space or many places to turn around, and my car STOPPED and the check engine light started blinking. Very unsafe, if my car won't let me accelerate and i come to an unexpected dead stop, it could cause accidents. I can't believe my car isn't included in the recall, it has the same issues as the 1.6L engine. I now have to put out thousands to get my catalytic converter replaced, and with the engine burning oil, it'll ruin a new catalytic converter faster than normal.
The contact owns a 2015 Kia Soul. The contact stated that while starting the vehicle, there was a rattling sound coming from the engine compartment. The rattling sound also occurred while driving at various speeds. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 20V750000 (Engine). The vehicle was taken to the dealer, who inspected the vehicle and informed the contact that the engine would not be replaced due to the mileage exceeding the mileage limitation of 60,000 and other unstated reasons. The manufacturer was made aware of the issue. The failure mileage was approximately 145,000.
THE VEHICLE IS BURNING THROUGH OIL AND NOW THE GARAGE I HAVE TAKEN THE CAR TO IS SAYING IT WILL NEED A NEW ENGINE SOON. ALSO I HAVE NEVER BEEN NOTIFIED OF THE RECALLS.
Despite receiving official recall notices and taking my vehicle to two separate Kia-authorized dealerships, I have not been provided with the necessary repairs, putting both my safety and livelihood at serious risk. At both dealerships, I was told that the issues, including a clogged catalytic converter and a failing exhaust manifold, fell within the scope of the recall. However, instead of performing the recall work, they simply cleared the codes and returned the vehicle to me. As a result, I was forced to pay out of pocket for repairs that should have been fully covered under the existing recall. Most recently, my vehicle was diagnosed with a failing long block, which is also clearly part of Kia’s recall campaign. Yet again, I was denied the proper repair. The vehicle is currently undriveable.
Engine started running rough, took it to a shop and was told that oil has been going through the exhaust and has clogged up the catalytic converter. Advised the engine must be replaced. Contacted a second shop and was told the same thing. Have been advised this is the same failure as the current recall for 2021 to 2023 but ours is 2015 and isn’t covered. Looking for guidance. Thank you.
Excessive oil consumption noted at around 40,000 miles. No visible smoke coming from tail pipe but burnt oil smell coming from underneath car in region of catalytic converter. Had engine visually inspected and had pressure test done by repair shop; no engine seal compromise present. Took vehicle to dealer to report and was told that warranty did not apply to this issue. Car eventually burning 2-3 quarts of oil every 800 miles. Traded car in at just over 99,000 miles due to oil consumption and concern about failure. Private party mechanic and oil change facilities very familiar with this issue on Kia souls. Noted that class action lawsuit against Kia for this very issue was initiated in California but was abruptly dropped. First vehicle I've ever owned that had to have oil added between changes. Noted that Kia owners manual stated that up to 3 quarts of oil consumption between 7500 mile oil changes is normal. I had oil change service done predominantly every 3000 miles.
The contact owns a 2015 Kia Soul. The contact stated while driving approximately 60 MPH, the transmission unexpectedly downshifted, and the vehicle decelerated while the accelerator pedal was depressed. No warning light was illuminated. In addition, while driving approximately 40 MPH, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The vehicle was taken to a local independent mechanic to be diagnosed. The vehicle was diagnosed with engine failure. The vehicle was taken to a local dealer for a second opinion, and the vehicle was diagnosed and determined that the catalytic converter needed to be replaced. The vehicle remained with the local dealer but was not repaired due to the cost. The manufacturer was made aware of the failure. The failure mileage was approximately 77,000.
The contact owns a 2015 Kia Soul. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed, however the vehicle failed to accelerate as intended. The engine misfired and the transmission shuttered. In addition, the check engine warning light illuminated. The vehicle was driven to the shoulder of the road. The engine seized. The vehicle was towed to the dealer where it was diagnosed with a failed catalytic converter. The contact was informed that the catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 105,000.
The contact owns a 2015 Kia Soul. The contact stated that when his wife started the vehicle, there was an abnormal knocking sound coming from the engine. No warning lights were illuminated. The contact stated that while performing an oil change, there were metal shavings found inside the engine oil that was drained from the engine. The vehicle was taken to a local dealer. However, due to the cost of the diagnostic test, the vehicle was not diagnosed or repaired. The contact stated that the failure persisted. The contact stated that the engine was consuming an excessive amount of engine oil, and when the oil change was performed, there were metal shavings found at the bottom of the oil pan. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was approximately 98,000.
No early warning lights displayed, but traveling on the interstate in this Kia Soul, having only 74,000 original miles on it when sudden knocking began. Had to quickly get to a stopping point and eventually have the vehicle towed. Mechanic reported is the very common Theta II motor issue where a spun bearing has occurring and could have easily locked up the engine, causing safety risks. Only after the start of the knocking did the oil lamp indicator begin to flicker; was not even a stead light. Indications are that though some recalls were made for this model, this vehicle was not included, and many others have reported similar issues on the same model.
Showing 1–20 of 50 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026