2014 Kia Soul Engine Problems

I own a 2014 Kia Soul 2.0L GDI that consumes approximately one quart of engine oil every 1,500 miles. The engine oil became dangerously low between oil changes without any warning indicator. The vehicle has also experienced reduced engine performance, declining fuel economy, and previously displayed a P0420 catalytic converter efficiency fault code. Replacing the PCV valve did not improve the condition. An overnight piston soak temporarily reduced the oil consumption, but the problem returned, suggesting carbon-related engine deposits. Kia has acknowledged that catalytic converter damage can create a safety hazard in certain 2012–2016 Kia Soul models equipped with the 1.6L GDI engine, and the NHTSA has issued a recall thereof (see "SC176 – 2012-2016 MY KIA SOUL ENGINE CONTROL UNIT (ECU) LOGIC UPGRADE SAFETY RECALL CAMPAIGN"). My vehicle is equipped with the 2.0L GDI engine and exhibits similar catalyst- and oil-consumption-related symptoms, but Kia declined assistance because my VIN is not included in the campaign. I am submitting this complaint because excessive oil consumption can allow engine oil to become dangerously low without warning, increasing the risk of engine damage or loss of power while driving. I request that NHTSA evaluate whether similar conditions are occurring in 2014 Kia Soul 2.0L vehicles.

NHTSA ID

11753054

Incident

May 1, 2026

I am filing an official safety complaint regarding an ongoing failure by Kia America and its dealership network to safely execute six simultaneous safety recalls and service campaigns on my 2014 Kia Soul (VIN: [XXX]).My vehicle was driven to the dealership in fully functional, running condition. The dealership performed consecutive software flashes (SC229 and PI2002A) alongside major physical dismantling of the steering rack and drivetrain assemblies (SC155, SC155A, and SC144), and engine management modifications (SC176). Upon pickup on XXX, my car began stalling directly on the lot. The dealership verbally dismissed this severe mechanical issue as a bad set of spark plugs.I personally purchased and installed brand-new spark plugs to isolate the issue. On XXX, within 10 miles of driving with the new plugs, the vehicle suffered a catastrophic power loss while driving on a public road, creating an immediate highway hazard. The vehicle will now start but stalls instantly when put into Drive, indicating a massive system conflict or physical grounding/wiring damage caused during the execution of these simultaneous recalls. Brand-new spark plugs did not resolve the issue, proving the dealer's verbal diagnosis was an attempt to dodge accountability. Kia Corporate has explicitly refused to authorize or fund a tow for an inoperable vehicle ruined directly by their own recall remedies. I request an immediate federal investigation into the execution and failure of these combined campaigns on my vehicle. As of XXX, the vehicle remains entirely disabled at my residence. Kia Corporate was contacted and explicitly refused to provide or cover a flatbed tow back to an authorized repair facility, stating only that they would 'see what they could do' if the consumer absorbs the transport costs for their defective recall execution. Thank you- [XXX] & [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11752227

Incident

Jul 11, 2026

The contact owned a 2014 Kia Soul. The contact stated that while stopped at a traffic light, the contact became aware of a burning rubber odor and observed grey and brown smoke coming from underneath the front end of the vehicle. The contact stated that a fire had started underneath the front of the vehicle. The local Fire Department arrived on scene and extinguished the fire. A fire report was not filed. A Police report was filed. The vehicle was deemed a total loss. While exiting the vehicle, the vehicle continued rolling and the rear driver’s side tire ran over both feet. The contact had two severely bruised feet; however, medical assistance was not sought. The vehicle was not towed or taken to a dealer or an independent mechanic to be inspected. The dealer was not notified of the failure. The manufacturer was not notified of the failure. The failure mileage was 107,000.

NHTSA ID

11751048

Incident

Jul 10, 2026

Mileage

107,000 mi

Oil warning dash light illuminated red. Engine oil dipstick showed empty. Oil had been changed within 4 months. Added approximately 3.5 quarts of oil.

NHTSA ID

11743971

Incident

Jun 11, 2026

COMPONENT FAILURE: The engine, power train, and speed control systems failed due to the known Nu 2.0L GDI connecting rod bearing defect. SAFETY RISK: My [XXX] daughter was driving in heavy rush-hour traffic when the vehicle suddenly lost motive power and entered a 20 MPH "limp mode." This sudden deceleration created an immediate and severe risk of a rear-end collision, endangering my daughter and surrounding motorists. DEALER CONFIRMATION: The failure was officially confirmed by Flow Kia of Charlottesville (RO #XXX). On Dec 3, 2025, the dealer confirmed active DTC P1326 (KSDS) and documented failed cylinder compression (as low as 150 PSI; min spec is 178 PSI). The dealer issued a written diagnosis stating: "engine replacement is required." MANUFACTURER CONDUCT: Despite their own dealer's written diagnosis and the active P1326 safety code, Kia Corporate issued a bad-faith warranty denial. The dealer also unlawfully charged me $165 for the mandatory KSDS warranty diagnostics. SUMMARY: This is a textbook safety failure under NHTSA Investigation EA 21-003. Kia's refusal to replace the engine under the court-supervised Engine Litigation II settlement represents a systemic failure by the manufacturer to remedy a known safety hazard. 51-page evidence packet attached. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11740615

Incident

Dec 2, 2025

Car had recall and new engine was put in April 2024. I’ve had the new engine for 25 months. It started doing the exact same thing as before when engine went out. No power, limp mode, engine violently shaking, rods knocking. Engine light came on. I parked it immediately and called dealership. They said it’s a refurbished engine not new so it does not have the full warranty. This new engine wasn’t new I just found that out this morning. Upon further research in Kia forums, these replacements blew up too. Like we all got the same engines that blew up. Can anything be done about this? This would be the 3rd engine in this Kia. It only had 30k miles on the new motor. Engines last longer than that. I’m now stuck as a travel nurse with finding another vehicle. This is just wrong. I missed work trying to find a car. Has there been any complaints about the replacement motors seizing up and blowing? Online searches show it happening to a lot of people with these Kia souls. Idk what your company does but everyone said to let you know. Idk how that helps but here it is. Can anything be done? My mechanic came by to look at it and said the motor is blown. It has an appointment at dealership for official diagnosis of blown motor.

NHTSA ID

11738559

Incident

May 10, 2026

There is a rod knocking in the engine now. Car has always been properly maintained. There are no oil leaks or anything. The car now will not shift, loses power while going up hill, and is burning oil like crazy. Had the car looked at and was told the engine now needs to be replaced.

NHTSA ID

11736659

Incident

May 4, 2026

My car burns oil very fast. I am putting in more than 5 quarts of oil in between oil changes. I have replaced the flex pipe, the catalytic converter two times, and both the upstream and downstream oxygen sensors. The catalytic converter now needs to be replaced again after only 7 months after being installed. The car keeps getting P0420 codes. I found out this last converter was bad while on the highway going 70 mph up a hill. The speed suddenly decreased all the way down to 50 mph which put me in great danger of getting hit from behind at high speeds. It would not go any faster..

NHTSA ID

11736089

Incident

Apr 26, 2026

I was driving down a major highway (I65, northbound, indiana) and my vehicle suddenly slowed down and wouldn't accelerate in the middle of traffic. The check engine light came on and was flashing, as well as many other lights on the dash. Thankfully I was able to pull over. I had to wait on the interstate for a tow truck with cars and semis flying past me. It was absolutely dangerous and Kia states they won't cover it because it wasn't dangerous. This is a known issue with this vehicle, and I did get the updated knock sensor when that recall came out. My engine completely stalled on a highway.

NHTSA ID

11731008

Incident

Dec 30, 2024

The contact owns a 2014 Kia Soul. The contact received notification of NHTSA Campaign Number: 22V096000 (AIR BAGS). The vehicle was taken for the oil change, and the contact was informed that the engine was consuming an excessive amount of engine oil. The oil level was extremely low. The contact was informed that the manifold was cleaned; however, the cause of the excessive oil consumption was not yet determined. The vehicle was not repaired. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 19V120000 (ENGINE, ENGINE AND ENGINE COOLING). However, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,000.

NHTSA ID

11728657

Incident

Mar 27, 2026

Mileage

101,000 mi

The contact owns a 2014 Kia Soul. The contact received notification of NHTSA Campaign Number: 20V750000 (Engine). The contact stated that while the vehicle was parked, the contact observed a leak underneath the engine compartment. The vehicle was taken to a dealer, where it was determined that the master seal was leaking and needed to be replaced. The vehicle was not repaired. The repairs were denied due to the failure not being covered under the recall. The vehicle was then taken to an independent mechanic, where it was diagnosed and it was determined that the master seal needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was approximately 90,140.

NHTSA ID

11727196

Incident

Mar 14, 2026

Mileage

90,140 mi

Excessive Oil Consumption/Burning Catalytic Converter Clogging Check Engine Light/Misfires My engine has all of these issues. It has been determined as known KIA issues not driver/owner related. My car has 94,000 miles but none of what's going on is any cause other than KIA issues/problems. I work a full time job and have missed work due to car not being able to be driven at random times.

NHTSA ID

11726351

Incident

Mar 23, 2026

The contact owns a 2014 Kia Soul. The contact stated that while driving approximately 55 MPH on the Interstate, the vehicle started shaking and there was a knocking sound coming from the engine with smoke and a burning oil odor. The engine, ABS, and traction control warning lights simultaneously illuminated. The vehicle was pulled over to the side of the road to cool down. The vehicle was able to be restarted. The vehicle was taken to an independent mechanic, where it was diagnosed with a fractured engine pin, which caused the knocking sound. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 20V750000 (Engine); however, the VIN was not included. The approximate failure mileage was 138,929.

NHTSA ID

11723863

Incident

Feb 10, 2026

Mileage

138,929 mi

My car was not accelerating all the time I was pressing the pedal. a mechanic said it was the engine.

NHTSA ID

11719585

Incident

Jan 30, 2026

The contact owns a 2014 Kia Soul. The contact stated that while driving 30 MPH uphill with her daughter and her small dog inside the vehicle, the brake pedal was depressed, but the vehicle stalled and shut off unexpectedly. The contact stated that several minutes later, the vehicle started working as intended; however, a fuel smell remained inside the vehicle. The check engine warning light was illuminated. Neither an independent mechanic nor the dealer was contacted. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed. There was a fuel odor while attempting to start the vehicle. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 19V120000 (ENGINE, ENGINE AND ENGINE COOLING); however, the VIN was not associated with the recall. The manufacturer was notified of the failure and informed the contact that the VIN was not associated with the recall. The failure mileage was 228,041.

NHTSA ID

11714247

Incident

Jan 27, 2026

Mileage

228,041 mi

The contact owns a 2014 Kia Soul. The contact stated that while driving at an undisclosed speed, the check engine light illuminated. The contact pulled to the side of the road. When the vehicle was turned off, oil leaked from the vehicle. The contact drove slowly to a business parking lot. The vehicle was towed to the residence and was then towed to the dealer. The vehicle was diagnosed, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired, and the dealer refused to complete the recall repairs. The contact was informed that the manufacturer refused to do the recall repairs and stated that the warranty had expired. The vehicle remained at the dealer unrepaired. The contact was informed that the vehicle needed to be removed from the premises. The manufacturer was made aware of the failure and filed a claim. Afterwards, the contact was informed that NHTSA Campaign Numbers: 22V096000 (AIR BAGS), 17V608000 (STEERING), 19V120000 (ENGINE, ENGINE AND ENGINE COOLING), and 15V123000 (VEHICLE SPEED CONTROL) were associated with the VIN. The failure mileage was approximately 140,000.

NHTSA ID

11713895

Incident

Apr 6, 2025

Mileage

140,000 mi

The contact owns a 2014 Kia Soul. The contact stated that while accelerating, the accelerator pedal was depressed to the floorboard, and the vehicle was sluggish and slow to accelerate before responding as needed. There was an abnormal, rotten odor coming from the vehicle. The ABS, engine, and traction control warning lights were illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling). The local dealer was contacted and suggested a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 157,000.

NHTSA ID

11710655

Incident

Nov 13, 2025

Mileage

157,000 mi

Summary of Safety Defect: While my 16 year old daughter was driving our 2014 Kia Soul in December 2025, the car suddenly lost power in traffic and would not go over 20 mph; the check engine light came on and the vehicle entered limp mode. The sudden drop in power created a high anxiety, hazardous situation for my daughter, who had only had her license for a week, during rush hour traffic. The vehicle was unsafe to operate and had to be towed. Details of the Incident: Diagnostic trouble code P1326 (Knock Sensor Detection System) was confirmed by the Kia dealership. P1326 is part of Kia’s known engine defect population and is tied to safety related engine failures. The dealership documented oil consumption, oil fouled spark plugs, and compression readings below Kia’s minimum specification on all cylinders. The dealership concluded in writing that engine replacement is required. Despite this, Kia denied warranty coverage based solely on a bearing clearance test, without completing the full diagnostic process required under the KSDS settlement. The vehicle remains unsafe and inoperable. Why This Is a Safety Issue: The sudden loss of power and inability to accelerate above ~20 mph created a dangerous situation for my daughter and surrounding traffic. This is a known defect pattern in Kia vehicles covered under the KSDS program. The failure occurred without warning and could have resulted in a collision. Requested Action: I am reporting this because Kia has not responded to my two complaints nor properly addressed a safety related engine defect that is already part of a national settlement. The incomplete diagnostic process and denial of coverage leave the vehicle unsafe and unusable. I request that NHTSA review this incident as part of the ongoing safety concerns involving Kia GDI engines and P1326 related failures.

NHTSA ID

11709713

Incident

Dec 1, 2025

Subject: Reimbursement Request for Engine Defect Repairs - VIN [XXX] Dear Kia Consumer Assistance Center, I am requesting full reimbursement for repairs necessitated by the known engine defect in my 2014 Kia Soul with the 2.0L VEHICLE INFORMATION: •Year/Model: 2014 Kia Soul Plus •Current Mileage: 145,861 •Owner: [XXX] EXPENSES INCURRED DUE TO ENGINE DEFECT: 1.Oil Change - $152.34 (November 21, 2025) Jiffy Lube work order #410 documents excessive oil consumption with notation "1/2 QUART LOW ON OIL. CHECK YOUR OIL OFTEN" despite oil change only 46 days prior. 2.Oil Change - Valvoline (Oct 6, 2025) Full Synthetic Oil Change $0.00 Because they gave me a oil change for free because my oil light came on the next day. Valvoline 5W30 Full Synthetic Oil API SP 4.20 QT Valvoline Oil Filter 3.Oil Change – Valvoline - $106.00 (Oct 5, 2025) Full Synthetic Oil Change Valvoline 5W20 Full Synthetic Oil 4.DIAGNOSTIC SERVICE Firestone - $110.99 (ENGINE ANALYSIS Sept 6, 2025) * POSSIBLE BOTTOM END DAMAGE TO THE ENGINE FROM OVERHEATING** NEEDS TO GO TO ENGINE SHOP** DIAGNOSTIC SERVICE (ENGINE ANALYSIS) **HEARS SQUEAKING WHEN ACCELARTING. CUSTOMER WAS DRIVING UP THE GRAPE VINE AND CAR HAD SHUT OFF. CAR ALSO TAKES A WHILE TO GET UP TO SPEED.** 5. Catalytic Converter Replacement - $1,100 (Sept 6, 2025) oThe catalytic converter failed due to excessive exhaust temperatures caused by the engine defect. Per Kia TSB and recall documentation, high exhaust gas temperatures damage the catalytic converter, resulting in abnormal engine combustion and damage to engine pistons. 6. Autozone - $26.99 (Aug 28, 2025) oCataclean Fuel & Exhaust oSystem Cleaner 7. Valvoline - $140.00 (May 11, 2025) Complete Fuel System $19.99 8.Spark Plug Replacement & Tune-Up - $391.81 (March 29, 2025) Engine diagnostic codes (P0302, P0300 I request full reimbursement for these expenses totaling $2,011.13. Kia of Downtown Los Angeles will do the oil consumption test 11/24/2025. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.

NHTSA ID

11700997

Incident

Nov 21, 2025

Engine failing, pistons, and major oil consumption

NHTSA ID

11699520

Incident

Oct 20, 2025

The contact owns a 2014 Kia Soul. The contact received a recall letter related to NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling). The contact stated that while driving 40-45 MPH, the vehicle lost power and stalled. The vehicle was restarted. The engine warning light was illuminated. The vehicle was taken to an independent mechanic, who retrieved DTC: P0420; which was related to the catalytic converter. The vehicle was taken to the local dealer, where the software update was completed, but the failure recurred. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 177,238.

NHTSA ID

11694788

Incident

Oct 1, 2025

Mileage

177,238 mi

The engine has absorbed an insane amount of oil the last several weeks, and this week it burned 1/2 quart of oil in four days- it was fully filled to 1 quart monday and by Friday of the same week was halfway gone. Otherwise it has worked well. Other Kia souls in the area are selling for much more money even if they have the same or more miles on them, but because mine needs an engine rebuild due to piston ring issues, it is worth much less than it should be. And there are no available recalls even though this is a known issue for Kia souls.

NHTSA ID

11694328

Incident

Sep 15, 2025

In June 2024, my 2014 Kia Soul (VIN: [XXX] ) experienced a sudden engine failure without warning. I was driving on a busy road when the engine began sputtering and quickly stalled. The vehicle became inoperable and had to be towed. I had it inspected at a Kia dealership, who diagnosed the issue as complete engine failure but have not provided me with a full diagnostic report despite multiple requests. This type of failure is consistent with the known defects in the Theta II engine that have triggered recalls and extended warranties in similar Kia models. Although Kia has denied coverage for my vehicle, I believe this is a related safety issue. The vehicle stalled unexpectedly, creating a hazardous condition on the road. I was traveling with my toddler in the back seat and felt our safety was at risk. I am submitting this complaint because I believe this failure is not an isolated incident and should be investigated. Kia has refused to acknowledge a defect, but the symptoms match those in previous recalls for other Soul and Forte models with similar engines. I have also attached documentation showing service history and repair costs, and I am happy to make the vehicle available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11693573

Incident

Aug 30, 2025

The contact owns a 2014 Kia Soul. The contact, who was an independent dealer, purchased the vehicle for resale. The contact researched and identified an unrepaired recall under NHTSA Campaign Number: 19V120000 (Engine, Engine and Engine Cooling) associated with the VIN. The vehicle was taken to the dealer; however, the dealer declined to repair the vehicle. The contact was informed that, because of missing or incorrect VIN information, the repair was declined. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The contact had not experienced a failure.

NHTSA ID

11693567

Incident

Oct 8, 2025

Mileage

123,478 mi

The contact owns a 2014 Kia Soul. The contact received notifications of NHTSA Campaign Numbers: 22V096000 (AIR BAGS), 15V123000 (VEHICLE SPEED CONTROL), 17V608000 (STEERING), and 19V120000 (ENGINE, ENGINE AND ENGINE COOLING). The contact stated that while driving 60 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. In addition, the vehicle jerked and vibrated abnormally. No warning lights were illuminated. The vehicle idled down to 5 MPH. The contact continued to drive; however, the contact had to pull over several times. The contact drove to the mother's residence. The vehicle was towed to the local mechanic, who diagnosed that the catalytic converter was clogged or had melted and damaged the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The dealer was informed of the failure and the contact was informed that the vehicle was missing several updates, and the dealer refused to perform the recall repairs. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but denied assistance with the recall repairs. The failure mileage was approximately 67,000.

NHTSA ID

11683509

Incident

Aug 26, 2025

Mileage

67,000 mi