My 2016 Kia Sorento with 2.4L GDI Theta II engine began consuming excessive oil despite regular documented oil changes. At approximately 86,000 miles, the engine failed and requires full long block replacement. The vehicle has been at a Kia dealership for 5 months while I went back and forth with Kia Corporate. I was quoted over $8,000 for replacement. Kia has declined assistance. This appears consistent with known oil consumption and bearing failure issues in the 2.4L Theta II engines. This failure occurred without warning and creates a safety concern due to potential engine stall while driving.

- Terra Alta, WV, USA

Dear Sir or Madam, I am submitting a formal safety complaint to the National Highway Traffic Safety Administration regarding my Kia Sorento. Over the past six months, this vehicle has required replacement of the engine, transmission control module (TCM), and the entire transmission. Although the engine and transmission were replaced at no cost to me, the extent of these major repairs within such a short period raises serious concerns about the vehicle-??s overall safety and reliability. In mid-January, shortly after picking up the vehicle from the dealership following the transmission replacement, the vehicle suddenly stalled while I was driving through an intersection. The engine lost power without warning, leaving me stopped in active traffic. To get the vehicle moving again, I had to shift into park, turn the engine completely off, and then restart it before it would drive again. This unexpected loss of power in the middle of an intersection created a dangerous situation with oncoming traffic approaching. Thankfully, my children were not in the vehicle at the time. After repeated major component failures and this stalling incident, I no longer feel safe driving this vehicle. A vehicle that loses power without warning poses a serious risk to the driver, passengers, and other motorists. I respectfully request a thorough investigation into this matter, including whether there are known defects, recalls, or related complaints involving this model. I am prepared to provide repair records and documentation upon request. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Fayetteville, GA, USA

The engine stalled while driving on the expressway. Myself and my daughter and her friend were in the car. The vehicle started right back up, and I was able to drive the car home (less than 2 miles away). The following day, my wife got an oil change, and went on the expressway, and the engine stalled again causing her to have to navigate the car, with no engine power, to the side of the highway and wait for myself and a tow truck. Both times were very dangerous. We had the vehicle towed to a mechanic, who said the crank shaft & rods and bearings for the engine look like they failed and seized up, causing the engine to complete lock up and stall, requiring a full engine replacement. Kia is refusing replacement saying we are not covered by the previous complaints and concerns, stating our vehicle is not covered specifically, stating that the 3.3L engines were not covered under the previous recall/extended warranty offered on engines in the same yr/make/model as our vehicle. The check engine light came on, and there was a slight knocking sound as the car was idling just before the engine stall, and as the engine stalled, the oil lamp and the battery light came on. This happened both times. The symptoms appeared just before complete engine failure. We get the vehicle serviced at Kia, and had the oil changed by Strickland Brothers the day of. We were concerned that the engine light came on due to potential of the oil needing to be changed. We do not have any electronic files or reports for this issue yet.

- Louisville, KY, USA

Our 2016 Kia Sorento had 96k miles on it, my 2.4 Liter, V4 GDI engine. I was driving it to my house on the streets, when the vehicle it completes died on me in the middle of the streets, it won't turn on, had it tow to my house. Made an appointment to take it to body shop on 2/12/2026, when it died while driving it to the auto shop, won't turn on, had it tow to auto shop. It has been burning oil for quite a while, keep putting engine oil very often. Auto shop confirmed vehicle found no codes, inspect engine oil, engine oil is very dark, manually rotated engine crankshaft, found engine seized. Vehicle has internal engine damage, possible connecting to the rods and bearings damage. Estimated repair is 9k. It is available for inspection.

- La Puente, CA, USA

My car totally stopped on me due to one of the 8 recalls I have undone related to my car. My insurance company verified that the recalls were open related to my car. I verified it to make sure by vin number at NHTSA.gov. up until today 2/13/2026 as I spoked with a representative at NHTSA my 8 recalls went from 8 to 0 recalls all of a sudden. I'm pretty sure the young lady went updated they website to read just that. I still have some proof that the 8 recalls pertain to my car and needs to be repaired.the dealership had me to bring my car in due to the recalls but because it had a motor failure now they're saying it's my fault for going over the approximate mileage of getting an oil change which is not true. The recalls were due way before my time and should have been taken care of before the car was sold to me. I purchased the car in March of 2025 and the car just failed on me in November of 2025. Within that time frame of me purchasing the car, I took good care of the car getting and oil change as well. Providing all oils where needed replacing tires that were needed, keeping gas tank clean. Changing air filters, and just keeping up with the maintenance. The car had no accidents no losses perfectly good car other than the recalls that were pointed out. When I brought the car in they told me everything was fine and that they would take care of those for me. My car has been there for like three weeks now and now they're telling me that the car is showing that the car was driven 11 thousand miles before it had an oil change. I have no idea of who drove the car before I purchased it and that I can only provide them with documents of what I took care of within the time frame I drove it up until the day it just stopped on me while I was driving. I really need my car and they is holding my car doing nothing to it all this time just to tell me that it's up to the manufacturer and sending him my documents for them to decide wether they will approve the repairs or not.

- Corpus Christi, TX, USA

3 times head gasket has been replaced and repaired and every time oil is changed, they say I am losing oil

- Forney, TX, USA

The vehicles is showing all this codes P0340, P0365, P0780, PO010.

- Bolingbrook, IL, USA

Failed oil pressure switch and now my engine is no good

- Oxnard, CA, USA

Our 2016 Kia Sorento had 86k miles on it, loud knocking began and days later catastrophic engine failure. Rods and bearings are busted on my 3.3 Liter, V6 GDI engine. It died while my wife was driving it to the dealership. Estimated repair is 19k, metal shavings in the oil. It is available for inspection. My wife was driving it on the highway when the engine failed. Dealer confirmed the rods and bearings were broken.

- White Bear Lake, MN, USA

Head gasket leaking, yes Causes engine to overheat. Radiator looses coolant and backs up into overflow. Makes heat and ac flow coolant fumes into vehicle. No longer clear air. Not yet. Still researching. Independent Mechanics shop. No There was no warning when the vehicle overheated

- Seabrook, NH, USA

The contact owns a 2016 Kia Sorento. The contact stated that while driving at 50 MPH and depressing the accelerator pedal, the vehicle speed decreased. The contact was able to pull into a parking lot safely. The contact attempted to restart the vehicle, but the vehicle failed to restart as intended. An independent mechanic and a dealer were contacted. The vehicle was towed to the dealer, where it was diagnosed that the engine starter needed to be replaced. The vehicle was then towed to an independent mechanic, where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 83,000.

- Stafford, TX, USA

The vehicle is a 2016 Kia Sorento equipped with a 2.0L Turbo Theta II engine subject to the KSDS (Knock Sensor Detection System) safety recall. The original engine was replaced at approximately 70,000 miles under Kia-??s engine service program. The replacement engine currently has approximately 32,000 miles. The vehicle developed internal engine damage diagnosed by a Kia dealership as a burnt exhaust valve. A burnt exhaust valve indicates abnormal combustion conditions such as lean operation, pre-ignition, detonation, timing deviation, injector malfunction, or lubrication failure. These are conditions the KSDS recall was intended to detect and mitigate. Kia Consumer Affairs denied warranty coverage, stating that the extended warranty applies only to rod bearing failure and that no further escalation would be pursued. Kia Consumer Affairs declined to escalate the matter for District Parts & Service Manager review and directed the owner back to the dealership. During the prior engine replacement, the dipstick was observed to be glued in place, raising concerns regarding oil level accuracy and lubrication integrity on the replacement engine. This complaint is submitted due to concern that a KSDS safety recall-related engine failure involving abnormal combustion was not properly reviewed or escalated, and that recall procedures were not administered in accordance with their intent.

- Saint Francis, MN, USA

Engine suddenly started making a lot of clattering noise. Oil consumption has been extremely high! Mechanic stated engine needs replaced.

- Middletown , OH, USA

For about 23,000 miles our mechanic has mentioned that the engine is burning oil. The exhaust pipe is covered in black soot. I monitor the oil level and it is always low even after oil changes with no oil leak. This has been provided to Kia with no remedy. Recently our Sorento was in a busy highway and the check engine, oil and battery lights came on and the car went into limp mode. We had the vehicle towed to Kia Chula Vista and the engine will be replaced by them. My concern is that the catalytic converter will soon fail and the engine issues need to be addressed for all of these makes/models before someone gets seriously hurt or killed.

- San Diego, CA, USA

The safety hazard began with a pattern of ignored warnings by the authorized dealer network. On Aug 15, 2025, I brought the vehicle to Luther Kia of Bloomington for a Check Engine Light. The dealer simply cleared the code without diagnosis, failing to catch early signs of engine trouble. On Sept 22, 2025, the engine failed again. I drove the vehicle in unsafe "limp mode" to Luther Nissan Kia [XXX] ). They found the engine was "4 quarts low on oil" (severe starvation just 37 days after a dealer oil change). Despite this catastrophic finding, they failed to diagnose the root cause and released the unsafe vehicle to me after selling only a spark plug replacement. On Sept 26, when I attempted to pick up the vehicle, the Check Engine Light was flashing immediately at handover. I refused to take the unsafe vehicle. The dealer then replaced an Oil Control Valve (OCV) and released the vehicle to me again later that day. After this second "repair, " I drove the vehicle for only a few miles before the engine failed again with a Check Engine Light. The dealer has since admitted in writing (BBB complaint #XXX) that the engine was "deprived of lubrication" due to the initial low oil condition. By ignoring early warnings and releasing a vehicle with a dying engine twice, the dealer put me and other motorists at risk of a sudden loss of power at highway speeds. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Richfield, MN, USA

Vehicle: 2016 Kia Sorento, VIN [XXX] Incident Date: November 13, 2025 Incident Location: Durham, NC (3828 Guess Rd) Cause of Loss: Engine Fire, confirmed by Durham Fire Department Report (Incident #253663) as "originated from under the hood." TECHNICAL NARRATIVE & SYMPTOMS (CRITICAL FOR LIABILITY): I am filing this complaint to report a catastrophic vehicle fire that I believe is directly linked to multiple acknowledged manufacturing defects that create a fire risk in Kia vehicles. ABS/Traction Control Light Warning (Direct Fire Risk Symptom): Immediately prior to the loss, the ABS and Traction Control warning lights were constantly illuminated. This is a known precursor symptom for the defective Hydraulic Electronic Control Unit (HECU) or ABS Module short-circuit, which has been cited in numerous Kia fire recalls (e.g., NHTSA 20V019, 20V519). The fire's origin under the hood is consistent with this component failure. Prior Engine Failures (Systemic Defect History): This vehicle has a history of catastrophic manufacturing defects: The engine assembly was replaced in 2023 due to the known Theta II Rod Bearing Failure. The knock sensor was replaced in September 2025 as part of the KSDS Product Improvement Campaign, demonstrating the vehicle was still under active service for critical engine monitoring defects just weeks before the fire. Potential Tow Hitch Wiring Fire Risk: The vehicle was fully engulfed, but the fire may also be linked to the defect cited in NHTSA Recall 22V703 (tow hitch wiring harness short circuit, which also poses a fire risk). I require a full investigation into this defect leading to compensation for the total loss of the vehicle and consequential damages. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Durham, NC, USA

The car was running as normal and then randomly it started kind of rough and seemed like maybe just cold. But I had my mechanic take a look, and he said that when he started it, which was the next day that it made a loud knocking sound upon start. On the 30th I had it towed out to West Hills Kia in Bremerton. And they reported back that the engine needed full repair. I only owned this car one year and before me it was reportedly well maintained. I maintained it well also! Kia is denying all recall, but it-??s a 2016 Kia sorento. It-??s within the one or two years that the recall doesn-??t cover"?" The brake lights also work and always one of them is not working. It is not exclusively one or the other but the bulbs keep burning out. I need to know what to do to get this engine fixed, and it should fall under the bad engines that Kia-??s have!

- Suquamish, WA, USA

Engine failed. Took car to Johnson City Kia dealership as advised by Kia of north America. The dealership said the engine failed due to carbon build up which is a problem with the engines, that it was not covered under warranty. I paid over $6,400 to have the engine replaced. When I was driving the car home the engine light came on and I lost power on the interstate causing me to almost get hit by a semi-truck. I took the car back to Kia of Johnson City Tn. the next day. Kia stated that the high-pressure fuel pump had went bad from the time I left the dealership and got home. I paid over $1,350 to replace a High-Pressure Fuel Pump. On the way home engine light and loss of power. I returned to Kia. They stated that gas had gotten into my oil. They changed the oil and I headed home, same issue engine light and loss of power. I told Kia of Johnson City I wanted a refund, and they could put the old part back on. Kia of Johnson City told me to take the car to another dealership that I was not getting a refund, and they would not fix my car. The engine codes and problems were the same as when I picked the car up from Kia. I have tried twice to have Kia of North America buy the car back due to it not being fixed and I do not feel safe in the car. I have taken the car to a Hyundai dealership in Johnson City Tn. and asked them to check the engine code and loss of power. Another $223.05. They stated the high-pressure fuel pump was defective. Fixing same issue multiple times.

- Elizabethton, TN, USA

Lost motor power while driving. No warning light before engine failure.

- Wichita, KS, USA

Mixing coolant with oil engine failure

- Buffalo, NY, USA