KIA Soul acceleration problems

VEHICLE SPEED CONTROL

Whistling noise and problem with acceleration over 35mph and drifting uphill. Although VIN number did not appear on the listed recall, the repair work recommended and partially completed by Kia repair dealer points directly to the description of an oil consumption problem that includes the 2016 Kia Soul. Some repairs done at Kia XXX and some done at Scott Kia in [XXX] (where I reside). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11763808 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

This car was purchased in December of 2025 with 26K miles on it. There are stall issues when using the auto start stop feature. I had to power down the car and restart it up to get the car to move. It also will throw the check engine light code and then after you drive it, it goes away which makes it difficult to take to a service shop for diagnosis. Recently the car is now at 28K (9 mo later) and it has an intermittent stutter when driving; I can only describe it as a push/pull motion and its random, during this time the check engine light came on again. On my way to take it to a service station for diagnosis, it went away. Not sure if this has been reported by other 2020 Kia Soul owners.

NHTSA complaint #11763658 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

Incident Overview & Vehicle Record Vehicle: 2016 Kia Soul Purchase Date: June 30, 2024 (Purchased from AutoNation Plano as 2nd owner) Incident Date: June 19, 2025 (Stalled on road at 113,000 miles) Current Location: Group1 Kia South Austin (Towed on July 8, 2025) Diagnosis: Severe internal engine failure (rod bearing defect) Current Status: Warranty extension claim denied by dealership due to missing Knock Sensor Detection System (KSDS) software update. We are 2nd user and this defects is due to manufectuer problem not user. Kia never issued recall regarding this matter.

NHTSA complaint #11759179 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

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 complaint #11740615 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I can not gain speed. The dealership says it’s the catalytic converter and there is an active recall for this on Kia souls. They previously did recall work to my car but now the catalytic converters not showing as a recall

NHTSA complaint #11723044 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

3/6/26 5:50 am unintended acceleration w such force pulling car toward right side n unable to stop, jumped over side walk, then stopped, it happened very fast, very scary accident, I was in shock and shaking so bad. Wknd disrupted, couldn't sleep n reliving bad experience over n over. Bringing it to the dealer 3/9/26. no damage to anybody or third party, unknown under car damage. Didn't file a report to the Police or DMV. no warning of any kind at all. Afraid to drive the car n how to proceed

NHTSA complaint #11722861 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

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

NHTSA complaint #11719585 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

In March 2025, my 2022 Kia Soul developed a check engine light and drivability problems that progressed to rough idle, loss of power, reduced power with limited speed and an unresponsive throttle, and stalling after continued driving. The vehicle was taken to the dealership, and the dealer performed a major timing related repair (camshaft and related timing/CVVT components) under on 03/07/2025. In January 2026, the check engine light returned and the dealer’s printout shows timing correlation related codes again (P0014 shown as pending and P0017 stored as history). Because the prior event involved loss of power and stalling, I stopped driving the vehicle immediately and brought it in as soon as the dealer had an opening to avoid a repeat safety incident. The dealership has stated the condition is due to low oil or excessive oil consumption and has recommended either engine replacement or additional major timing/engine repairs to make the vehicle drivable. I am concerned this is a recurring engine timing or engine control condition that can lead to reduced power and stalling while driving. I am also aware of recalls or manufacturer campaigns reported for similar Kia Soul vehicles involving engine oil consumption or related engine damage concerns, but my VIN does not show as included. Given the repeat timing related codes and prior reduced power and stalling, I am requesting review of whether this condition warrants broader investigation beyond the current VIN scope.

NHTSA complaint #11711598 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

The Instrument Cluster, the Speedometer and "NOW" the Odometer are not working--absolutely dead. "NOW" is in caps because to my surprise I noticed just recently that the Odometer is not working. In April 2021, after several weeks of waiting for the repairs to be finished, a Kia dealer, PEAK KIA in Colorado replaced the Instrument Cluster because of the faulty Speedometer. (This repair was done after several months of back and forth to more than one Kia Dealer about this problem. Unlike now where the Speedometer is dead, not moving at all, at that time it would stop working periodically, perhaps when my car was cold or not. It took several months of dealing with Kia dealerships to acknowledge that it was a problem.) Right after the replacement in 2021, I texted the PEAK KIA mechanics-representative, named Trevor, that it was still a problem, not working every now and then. He replied in a text "What?" and that he would check with his technician. He never got back to me with an answer, and would not return my phone calls.) Since that time, I've been dealing with this infrequent or sometimes-problem. Note, I work from home so I do not drive my car every day, only once or twice a week. However, just recently before and around the holidays, I noticed first that the Speedometer was dead, the needle was not moving at all during the entire time of driving, instead of every now and then. And closer to the holidays, I was shocked, noticing that the Odometer was NOW not moving. This had never been the case before. To date, I only have a Powertrain Warranty(?) left that expires in December 2028. I called Kia, the manufacturer, the other day and reported the above information. They said too bad, they will not cover it because the warranty for that 2021 repair expired 12 months after the repair, something I did not know. My concern is whether the Kia Dealer, Arapahoe Kia--where I usually go , will or should cover it. Plus, I feel this is a serious safety issue.

NHTSA complaint #11709908 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

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 complaint #11709713 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I bought the car 2 yrs ago come April and it's had nothing but issues. I've had one recall did which was the knock sensor however now the check engine is on and it's smelling like rubber my brakes are wearing like an eraser and my engine just feels sluggish. The code is p0420 which from what I understand is a catlic converter and I read online there is a recall for that with kia . I've spent a lot more than what I paid for the car not even 2 yrs ago and every place i take it has a new opinion and none of those have any connections with the code so I need help

NHTSA complaint #11702167 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

While driving my 2013 Kia Soul, it has turned off while I was sitting still several times this month. The RPM gauge has stopped working and than my vehicle would not drive, actually it was driving very slow and not getting enough power to go the normal speed. Also now my cruise control does not come on any longer. I took my vehicle to a Kia dealer, where they claimed that they could fix it, but than after I paid over $2000, they stated that they did not have the parts to fix my vehicle.

NHTSA complaint #11696669 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

The contact owns a 2022 Kia Soul. The contact stated that the month that the vehicle was purchased, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle stalled. The contact was unable to coast to the side of the road. The ABS, traction control, Forward Collision Avoidance, and System Check warning lights were illuminated. The vehicle was towed to the dealer; however, no cause for the failure was found. The failure was progressively worsened. The contact stated that several unknown warning lights illuminate every seven miles of driving. The vehicle was taken back to the dealer; however, no cause for the failure was found. The failure was later diagnosed as a control area network failure. The vehicle was not repaired. The contact stated that the failure persisted. The contact stated that the vehicle was parked at the residence, and afterwards, the system rebooted. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 100. The VIN was not available.

NHTSA complaint #11696462 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

The contact owns a 2018 Kia Soul. The contact stated that while driving at an undisclosed speed, while depressing the accelerator pedal, the front of the vehicle suddenly jumped. The contact was unsure if any warning lights were illuminated during the failure. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was not available.

NHTSA complaint #11694046 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

Brake petal sensor broke keeping the tail light on. Has trouble accelerating and throws the traction light on burnt up battery, both front door locks have broke with no reason. Wipers broke does not give water.

NHTSA complaint #11693140 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL:CRUISE CONTROL

The contact owns a 2023 Kia Soul. The contact stated that the battery discharge and Auto START/STOP warning lights were illuminated. The vehicle was included in NHTSA Campaign Number: 23V531000 (Power Train), for which the dealer replaced the electric oil pump controller as the remedy. After the repair, the cruise control was unintendedly activated. The Lane Keep Assist feature was intermittently activated independently. While refueling, the fuel gauge was half full and took approximately 30-40 minutes before quickly displaying a full tank. The dealer was contacted and confirmed that the recall repair was completed; however, the vehicle was not taken back to the dealer to be diagnosed or repaired. The manufacturer was informed of the failure and referred the contact back to the dealer. The failure mileage was approximately 33,000.

NHTSA complaint #11689643 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

2016 KIA SOUL- While driving, vehicle lost power, check eng light came on and vehicle would not accelerate, engine started making noise- pulled over and shut car off. Had vehicle towed to independent shop and was diagnosed with bad catalytic (manifold) convertor- they changed oil and filter and also found metal in oil, which I never experienced till this incident- upon research i found that there was a recall on that convertor, i called dealer, had towed there- diagnosed as convertor, was told covered one day, then called next and told it was not. Evidently, looking at reviews and complaints, there are many people driving 2016 kia souls that were not covered under this catalytic recall. Seems that Kia never fixed the original issue. Warning DON'T BUY A KIA- I have contacted Kia customer care, case [XXX] and they have said car did not have recall and are not giving any assistance. To edit, this is [XXX] vehicle INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11688407 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

Kia 2016 died in mid traffic, would not switch out of 1st gear as an automatic, on a major road in Texas, no warning lights etc. Could be Transmission or Catalytic convertor.

NHTSA complaint #11681539 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

1- ENGINE It’s been about 3 months that when I depress the gas pedal the car skips or hiccups and I get a check engine light on I have to accelerate slowly this also happening while I am driving it’s worse if I try to pass a car

NHTSA complaint #11676406 — an unverified report by a vehicle owner.