Home · 2018 Kia Sorento Plug-in Hybrid · Complaints

What 248 owners told NHTSA about the 2018 Kia Sorento Plug-in Hybrid

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (248)Crash / fire / injury (25)Engine (102)Lights (41)Electrical system (29)Steering (26)Fuel system (12)Airbags (10)Body & structure (9)Transmission & drivetrain (9)Speed control (8)Brakes (7)

102 of 248 complaints match · Engine · clear filters · page 3 of 5

Jul 9, 2024Engine

The engine seized as we were driving onto the freeway. Everything just stopped. The car had to be pushed to the side of the road. It failed to restart. When we checked the dipstick, it was completely dry and starting to burn on the bottom. There was no visible signs of an oil leak. There were no lights or other notifications that the car was out of oil. We were lucky the car wasn't hit and someone seriously injured or killed. The car had to be towed to our home. Kia Corporate Office was closed. The Kia dealership said I could have it towed at my expense and have it looked at when they had time the following week. It was just under 100K miles A different Kia dealership offered to give me $5000 towards a trade-in on a new car. That was half the trade-in value, but I couldn't be without a car. When I inquired three weeks later about what the service department found out was wrong with the car, I was told they hadn't even looked at it and would probably just use it for spare parts.

NHTSA ODI 11600564

Jun 30, 2024Engine

Engine is burning oil. Engine only has 116,000 miles on all maintenance has been kept up to date - has never missed an oil change, only ever used full-synthetic. Should not be consuming this amount of oil. Also dash board lights pertaining to engine or oil never come on.

NHTSA ODI 11597784

Jun 19, 2024Engine

Car is burning 3/4 a quart of every 1,000 miles

NHTSA ODI 11595359

May 14, 2024Engine

On May 1, 2024, I noticed my 2018 Kia Sorento making a knocking sound and smoking heavily from the back exhaust. I turned it off, thinking it might be overheating, and planned to check it the next day. On May 2, 2024, while taking my daughter to school, the vehicle was knocking but no indicator lights were displayed, the main display screen suddenly showed an engine control system issue, and the car spoke and said to take the vehicle to the closest service center I immediately headed to the Kia service center. About 2-3 miles into the drive, the car shut down completely on the interstate. I managed to coast to a stop on the access road but was still partially on the road, so I called for a tow. The police later helped me move the car further off the road because I was a hazard for Morning rush hour traffic. After waiting for three hours, the tow truck took me to the Kia dealership, where the mechanic found that the engine had seized. Kia refused to repair the damage, citing that I hadn't done a KSDS recall. The repairs are estimated to cost over $7000 needing long block replacement from hole in block (KSDS requirements not met). I was not aware of any issues with my car, as I had not been informed about a KSDS recall or any suggestions regarding it. I feel this situation put me in danger, first with the potential fire hazard and then being stranded on the highway and nearly struck in multiple occasions. . I currently have no working vehicle, and Kia is not taking responsibility for these engine issues but my make and model has no listed recall. I am not considered a part of the KSDS recall therefore I also get no claims to the millions awarded to others due to this recall.

NHTSA ODI 11588699

Apr 29, 2024Engine

My vehicle is consuming a lot of oil. At my previous oil change I mentioned this to the dealer as I had to put in 5 quarts of oil. The oil canister light came on which I believed was just warning me to my upcoming oil change but my dipstick indicated otherwise when I checked. The light would only come on when I made turns in the road. It did not stay on consistently. As I was driving my engine sounded bad and I was worried something more was wrong which is why I checked the oil. When I brought it in for the oil change, the service advisor said they would check for leaks which was not located. I asked them to set my oil change for 3k miles instead of the 5k miles they have been setting it as I was worried about engine damage. The oil canister light came on recently once again (still only when I take turns on the road) with still 1100 miles left in the current oil change and when I checked there was no oil in the engine reflected on the dipstick. I gradually added oil and had to add 5 quarts of oil once again. I set up an appointment for further investigation but I fear that by the time they run their tests my vehicle will surpass any warranty. I’m currently at 77700 miles. This much oil consumption is not normal and I shouldn’t have to keep a constant stock of oil available to fill up every 2k miles. I understand a little bit of oil but having to add 5 quarts of oil at a given time is way too much.

NHTSA ODI 11585832

Apr 23, 2024Engine & coolingEngineFire

The contact owns a 2018 Kia Sorento. The contact stated that while driving at 55 MPH, the vehicle lost all power while depressing the accelerator pedal without warning. The contact also stated that white smoke began to emit from underneath the hood of the vehicle. Upon inspection of the vehicle, the contact saw flames coming from underneath the vehicle as oil began to leak from the vehicle. The flames eventually dissipated and authorities were not called to the scene. Due to the failure, the vehicle was towed initially to the contact's home and later to the dealer. Once in the dealer's possession, the contact was informed that there was a hole in the engine block which had led to engine failure. The manufacturer was notified of the failure but had yet to offer any assistance. The vehicle remained in the possession of the dealer and had yet to be repaired. The failure mileage was approximately 81,000.

NHTSA ODI 11584707

Apr 9, 2024Speed controlEngine

Vehicle seems to be stalling when you stop and then try to pull out. It takes minutes to accelerate after stopping.

NHTSA ODI 11582032

Apr 6, 2024Engine

The vehicle started knocking. We took it to Kia and they share saying we needed an upgrade part that is on a safety”notice” and not a recall. It’s to prevent engine failure. They refuse to put in the part because they said the engine is already failing. They said we need to pay 6k. The best part is that we took the vehicle in last year (2023) for the hitch and the anti theft upgrade and KIA didn’t tell us about this feel part. Why wouldn’t we get the free upgrade on the engine???? They are not telling consumers and it doesn’t come up when you search by VIN.

NHTSA ODI 11581475

Apr 4, 2024SteeringSpeed controlEngine

Me and my wife were traveling north on [XXX], left lane, 18 wheeler in right lane, cars directly behind us, 70 mph, when there was an abrupt thud, and slight skid, then lost all power from the engine. There were no warning indicators at the time. When the engine failed, we almost hit the tractor next to us. Looking in the mirror to try to determine what to do, as steering was hard to perform, there was a large cloud of black and blue smoke, the car behind us being covered in smoke and most likely oil too. The car behind us aggressively braked and ducked in behind the 18 wheeler just before a rear impact would have occurred. We finally got to safety on the side of the road as the traffic stacked up behind us was able to reduce speed in time. I had my car towed to the KIA dealership in Springfield, MO. One interesting point, the wrecker operator said that unfortunately a big part of his business was hauling KIAs. We almost died. Upon review of social media, I see there are literally thousands of KIAs placing families in danger. Why hasn’t Mr. Budegedge acted on it. After experiencing this, it’s likely there will be deaths. My car had 120,000 miles on the engine. KIA said it was my problem as they met their warranty obligation at 100,000 miles. There are so many incidents, even with 6 cyl engines. Customers need to be warned. At least they can be prepared for the failure when it happens. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11581146

Mar 5, 2024Engine

Engine failure

NHTSA ODI 11575670

Feb 8, 2024Speed controlEngine

The contact owns a 2018 Kia Sorento. The contact stated that while accelerating, there was an abnormal knocking sound coming from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the knock sensor needed to be replaced. The vehicle was repaired, but the failure recurred. The mechanic completed a road test and indicated that the vehicle was working as designed. The vehicle was not diagnosed or repaired. The contact stated that while driving at 65 MPH, the vehicle was shuddering, shaking, and then lost motive power and stalled. The check engine warning light was illuminated. The contact used a code reader and retrieved DTC code: P1326 (Permanent go Relay Stuck On). The vehicle was taken to an independent mechanic, who cleared the codes but informed the contact that the failure would continue and recommended an engine replacement. The contact stated that while driving at 70 MPH, the check engine warning light illuminated. There was a thumping noise detected from the engine. The contact reduced the speed to 40 MPH. The vehicle began to hesitate, sputtered, and failed to accelerate. The contact used a code reader and retrieved DTC code: P0302 (Cylinder Misfire). The manufacturer was contacted, and opened a case. The failure mileage was approximately 95,000.

NHTSA ODI 11570707

Jan 22, 2024Engine

Excessive oil consumption, burning oil

NHTSA ODI 11566894

Jan 10, 2024Engine

The whole engine needs replaced without warning. I have been driving it with oil spraying, a hole in engine and not sound or engine light or anything as a warning. Very unsafe and many others in the same boat.

NHTSA ODI 11564568

Nov 13, 2023Engine

The contact owns a 2018 Kia Sorento. The contact stated while driving 70 MPH, the vehicle started shaking abnormally. The check engine warning light was illuminated. The vehicle was steered to the side of the road and turned off. The vehicle was towed to a dealer where it was diagnosed that the engine needed to be replaced due to a loss in engine compression in one of the cylinders. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 103,000.

NHTSA ODI 11554819

Sep 27, 2023EngineEngine & cooling

After inspection, the service agent, Jeff, came and informed me there was “good news and not so good news”. Good news - He said there was a 999,999-mile warranty on the engine for the oil pressure stick problem. The not so good news is that Kia will not replace the engine until it locks. I was shocked to say the least. I asked him, how in the hell is that safe? Why isn’t the fact that the car started shutting down on me (power steering) enough of an indication that it needs to be replaced? That along with the amounts of oil I’ve had to replace. All the years I’ve had my Kia, I’ve NEVER had to add oil. He said those warnings were not enough. He said the engine light would come on as well as others, the engine would start knocking as well. THEN you get to the side of the road. I told him as I’m going to state here, that is the most asinine thing I have every heard! So essentially, before Kia will replace my engine, I have to possibly kill myself, any passengers and any other drivers on the road first? What if I’m in heavy highway traffic and cannot get over, cannot get to an inside grassy area or shoulder and my car just stops? He said his hands were tied unless these things happened.

NHTSA ODI 11546873

Aug 7, 2023Engine

The car stalls any where when the temp is over 108 degrees, i have to wait about two minutes and it will start, sometimes it cranks then it starts, no codes come on the code reader. It has never happen since i bought the car 5 years ago. The car is not over heating, it stays on the same temp and no antifreeze comes out.

NHTSA ODI 11537023

Jul 26, 2023Engine

The contact owns a 2018 Kia Sorento. The contact stated that oil needing to be added the engine every two weeks. The contact stated that the check engine warning light was illuminated. The contact called the local dealer and made them aware of the failure. The dealer informed the contact that an oil consumption test needed to be performed. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was 81,136.

NHTSA ODI 11534528

Jun 14, 2023Engine

Ive been experiencing engine failure with my vehicle since December of 2022. The car was assessed and repaired and less than a month later my engine has failed yet again while driving. My vehicle year is not listed in the kia settlement class action even though I have a Theta II engine 2.4 L GDI.

NHTSA ODI 11526940

May 10, 2023Engine

While driving my 2018 Kia Sorento on Interstate 95 at approximately 65 mph, the vehicle suddenly started to knock. The noise got louder and before I could safely pull onto the shoulder, the engine totally failed without any warning lights whatsoever. Large amount of blue smoke came from the exhaust and I lost all power to the vehicle. Engine parts and motor oil were scattered all over the highway from the violent nature of the failure. This also caused vehicles behind me to swerve and brake in order to avoid hitting the metal engine debris. My right rear tire ran over such metal and it immediately went flat. I was able to coast the vehicle onto an exit ramp where I raised the hood to check for fire. The engine continued to leak oil while parked on the off ramp shoulder. I called my insurance company to let them know what had happened and a tow truck responded approximately 1 hour later and the vehicle was placed in an auto storage lot.

NHTSA ODI 11521354

Apr 18, 2023Engine

My car is using more oil then it should and I’m getting bad gas mileage. I have no leak you can’t smell anything and it doesn’t run hot! But we have to add a least 2 quarts a week.

NHTSA ODI 11517733

Apr 4, 2023Engine

Vehicle is consuming oil at an extraordinary rate. About 1qt per 750 miles. There are no oil leaks present.

NHTSA ODI 11515484

Apr 2, 2023Engine

On 3/23/2023, the Oil Pressure Warning Light flashed on and off. I was lucky to be near a gas station that could check my oil and determined there was less than 2 quarts left. They added almost 4 quarts of oil and told me to immediately contact my Kia dealership because I could have an oil consumption issue. I researched the issue online and found that there is a class action lawsuit over Hyundai-Kia oil consumption defect. On 3/28/2023, I brought my vehicle to Mastria Kia to have an oil change and have it checked for an oil leak. There was no oil leak. Thus, they told me to return in 1,000 miles (oil consumption test). If it passes the oil consumption test, they told me that they could do a combustion chamber cleaning for over $500, which I was also told does not fix the defect. They also informed me to check my oil level regularly and add oil as needed. The vehicle is not reliable or safe to drive. I was lucky that I was near a gas station, and I saw the warning light that flashed only once. This is a safety issue and this vehicle's reliability is questionable. I hope that NHTSA can help not only myself, but other Kia owners that are experiencing the same engine defect.

NHTSA ODI 11515033

Mar 13, 2023Engine

My car is using 5 quarts per oil every 250-500 miles. Which means my car can blow up with me in it. I took it to the dealer and even though there is a tsb on this and it is a known issue they are telling me kia will not cover it I have to replace it out of my own pocket. When this occurs no oil lights or engine lights come on.

NHTSA ODI 11511650

Feb 27, 2023Engine

Catastrophic engine failure with no signal or warning from the car after being well maintained for 5 years. This occurred while driving 60 mph on a desolate stretch of VT highway while on a trip from our home in NJ. Engine died with no warning and we coasted to a dangerous narrow shoulder of RT 9 and were almost killed by a truck. We also had no cell reception to even call for help. The engine then started to smoke and burn and I was forced to put my two children out on a snowy embankment for 30 minutes risking hypothermia. We bought this 2018 Sorento new and only discovered the vast extent of Kia’s engine defect after this experience on 2/22/23. I am in complete awe and shock that your agency has allowed them to continue putting people in grave danger. I want to understand how Kia is not applying a more exhaustive effort to notify customers and rectify a deadly product defect that they are well aware of. I would like to direct your agency to a very active Facebook page called “Engine Failure - Kia” that contains a plethora of stories just like ours. This company does not care about the safety of families, nor do they have any interest in making this right. In an effort to reduce the expense of their deadly mistake, they choose to victimize their customers again by declining valid claims for an engine replacement if all service documentation is not available. They are fully aware of their responsibility and choose to act like corporate criminals. It is up to agencies like the NHTSA to address this behavior and prevent further injury and death.

NHTSA ODI 11509414

Feb 23, 2023Engine

2018 Kia Sorrento died suddenly on the highway. We heard a loud rattling noise, then a pop followed by the engine stopping with some smoke coming out under the hood.

NHTSA ODI 11508795

← NewerOlder →

Working with the data? Download all 248 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Kia Sorento Plug-in Hybrid verdict →