There are 17 owner-reported engine complaints for the 2018 Kia Sedonain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The vehicle is a 2018 Kia Sedona with approximately 122,000 miles that experienced a catastrophic engine failure resulting in complete engine seizure. The failure has been identified by an independent mechanic as a rod bearing issue. The engine remains intact and is available for inspection upon request. The vehicle is currently not operational and the battery has been disconnected. This vehicle is a family vehicle that regularly transports our four children. At the time of the incident, our [XXX] child was in the vehicle with us. The failure created a serious safety risk. While traveling on the highway, the vehicle suddenly lost power without warning, creating a hazardous situation in active traffic and increasing the risk of a collision. The presence of a young child in the vehicle further heightened the severity of the safety risk. The issue was preceded by a light tapping noise that began approximately 10 miles prior to the failure. Within about one minute before total failure, a loud squealing noise occurred, followed immediately by complete engine shutdown and loss of power. There were no meaningful warnings that would indicate imminent catastrophic failure in time to safely prevent the incident. The problem has been confirmed by an independent repair facility, which diagnosed the engine as seized due to internal failure consistent with rod bearing damage. A Kia dealership and Kia America have both been contacted and declined responsibility for repair. The vehicle has been regularly maintained, with routine oil changes performed as expected. The most recent oil change was completed approximately 2,000 miles prior to the failure. Insurance has confirmed this incident is not covered, as it is a mechanical failure and not the result of an accident or external damage. The vehicle has not been physically inspected by the manufacturer. Police were not involved. This type of failure is consistent with widely reported engine defects across Kia vehicles i INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
While driving under normal conditions and normal operation, the engine lost power, began using excessive fuel, the inside of the vehicle smelled like fuel and white smoke began pouring out of the exhaust.
Engine failed…driving down the road with five small children and without warning all the lights came on and started smoking, leaking fuel, power doors failed, steering, acceleration and more. We had to have the car towed to a shop. A when looking into what’s happening apparently many others are having to spend thousands to fix this issue and I’m afraid that’s where we are. An investigation needs to be opened as this is clearly an ongoing issue for many families
While driving on the interstate, about an hour into the trip, there was a banging/tinging sound coming from the front of the van. Immediately the van was pulled off the road to assess the situation as there were NO WARNING MESSAGES OR LIGHTS that came on to alert of any problem. Immediately before hearing the noise, the van had a major loss of power going up a slight incline on the interstate. The van threw a rod and had I not noticed the sound and pulled over, this could have been potentially a deadly situation had I kept driving and the engine completely seized up in the middle of the interstate.
ENGINE - blown head gasket, cracked block. Vehicle is at dealership service center in for repairs.vehicle has been inspected by the warranty company. No engine light or warnings or messages came up on the car. Approximately 64000.00 miles smelling antifreeze. Took it in to have it checked for leaks no apparent leaks. Took in at approximately 72000.00 miles now has a blown head gasket and cracked block. The safety of a breakdown is obvious.
While returning from a road trip to the Phoenix Arizona area I was driving my family in the Kia Sedona van. We were driving on highway [XXX] going over [XXX] accelerating up hill. Without warning the car started to have high rpms and the sensor for the check oil along with the check engine light began to flash. Steering felt difficult. Safety was a concern having to try to use a dying vehicle to pull from the left lane across traffic of the busy highway on a mountain pass. I was able to pull to the right shoulder of the highway and park the van. I shut the van off and went to check the oil, the dip stick showed empty. I was trapped on the side of the highway with my wife and 5 small kids. I was uncertain that the tow truck would be able to transport my family off the highway. I was not willing walk my family along the highway so I called the local police dispatch for possible aid. The tow truck was able to get us off the highway to a place we could order a Lyft. The van was towed to a mechanic shop. The van was inspected by a mechanic shop. The shop confirmed that the engine had seized and would have to be completely replaced. We had been on this road trip for the past couple with no issues prior to this event. After being told our engine had seized we started to do some research on the internet and found this is a common issue with Kia and there is a current class action lawsuit. We intend to file a claim, but are uncertain if we qualify based on the dates of the suit. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
We have a 2018 KIA Sedona SXL that started to have a knock the beginning of the year. We noticed it was dry on oil even though we faithfully get our oil serviced. I took it in for an oil change right away and they were also surprised as I have always went there for my oil services. They informed me that my Kia engine is notorious for burning through oil and maybe just try coming in more frequently than what KIA recommends so we figured that was the answer, as the knock sound had gone away immediately after having oil. That was on [XXX]. A little over 3 weeks later on [XXX], my husband and kids were heading home on the interstate and the car completely shut off and died without a single light on the dashboard. No ding warning sound, check engine light, oil light, nothing. After such a scary experience the only common fix that made sense was maybe an alternator issue so we towed it home. The next day we had a licensed mobile mechanic come out to diagnosis the situation. After trying a new battery he did not think it was the alternator. He manually tried to start it by cranking the crankshaft and he sadly informed up that it was seized up around the piston and it would need a completely new engine. A new engine that not only was discontinued but also for a vehicle that only has 107k miles. Unacceptable as there are many many others out there experiencing this with their KIA engine that also have the 3.3L V6 Lambda II GDI. I’m hoping the the safety of consumers and their families that NHTSA looks seriously into this engine manufacturered in Geangmyeong, Korea INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine in my 2018 Kia has failed. This should be covered under warranty as van only has 90k miles on it but because I am the second owner they are telling me it is not covered. Several other 2018 Kia’s have already been recalled for engine failure. My car was burning oil. This is a manufacturing issue and I am very stressed about paying to get it fixed out of pocket.
I took the vehicle to get serviced to check the engine light coming on. The Kia dealership stated that the CVVT Assembly and Oil Control Valve had to be replaced. The entire engine would have to be replaced if there was engine damage. The check engine would turn off for a couple of days and then turn back on. When the light would turn off, there was a lack of power, causing a lag in the throttle control.
Engine failed. Replacement is required. Currently at dealership where auto was purchased. Dropped off 30 JUL '24. Waitng for replacement.
Head gasket blew and caused coolant to leak into the engine. We broke down on the side of the interstate. Our vehicle sat at the dealer for 5 months awaiting a new engine to be put in. No warnings beforehand.
10 mile drive to town. On return home, smoke began pouring from the engine compartment. Within 3-4 minutes flames came from grill area, and within 15 minutes entire car was engulfed in flames.
Vehicle was idling when smoke and fire started presumably from the engine causing a car fire. We are the insurance company that paid for the car and Clearcover Insurance is now the owner.
While driving at highway speed all the dashboard lights came on and the engine instantly quit. I managed to pull the wheel and coast to the side of the road, which was difficult with no power steering. I tried restarting the engine, but it would not stay running. I had to have the car towed to the mechanic who, upon inspection, found the engine seized due to no oil. An engine replacement was required. All routine maintenance performed on this engine and records were provided. The dealership where I purchased the vehicle refused to replace the engine under warranty, 92330 miles, stating the engine showed "sludge" and was not maintained, this despite my providing maintenance records. This catastrophic engine failure was caused by a manufacturing/engineering defect in the GDI engine causing the engine to burn oil excessively. There was no indication of a problem prior to the failure. The failure at highway speed could have easily caused serious injury or death.
Blown engine at 108,000. Known issues with 3.3-liter V6 engine . Kia refises to repair.
108,000 miles failed engine due to know rod issues with this engine
We barely use it and just for Sunday service only which our church is just 2 miles away from our home. We did the oil change last July 2022 and on December 2022, Suddenly the engine stops working (ONLY 120 MILEAGE ADDED). NO WARNING LIGHTS or INDICATION saying ENGINE OLI needs to change. My son heard a clunk noise while he's on the way home. Huntington Beach Hyundai Service center said that the ENGINE BROKE DUE TO OIL ISSUE.
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