2015 Kia Sorento Engine
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
•The engine of my 2015 Kia Sorento experienced a catastrophic failure, leading to a loss of power and abnormal sounds while driving. It is available for inspection upon request. •The sudden failure of the engine posed a significant safety risk to both me and others on the road. Without any warning lamps or messages, this malfunction could have led to a complete loss of control over the vehicle, endangering lives, particularly if I had been driving at high speeds on the highway. •Yes, the issue has been confirmed by the Courtesy Kia service center in Messa, where the vehicle was inspected and diagnosed with a crashed engine requiring replacement. •While the vehicle has not been inspected by the manufacturer, it has undergone evaluation by the authorized dealer service center, Courtesy Kia in Messa. They told me that they have contacted manufacturer and that they declined any support because I am second owner and therefore their engine warranty only covers 60000 miles. •No warning lamps, messages, or other symptoms were present prior to the engine failure. Despite diligently maintaining the vehicle and conducting regular services, there were no indications of any issues until the sudden loss of power and abnormal sounds occurred while driving. Even upon towing my car home and parking the vehicle at garage, no warning lights were illuminated, further highlighting the unexpected nature of the malfunction.
Was driving on the freeway and vehicle shut off doing 70 miles per hour. Had to pull over in the dark on the side of the freeway and car would not start. Has never had any problems with this before. I drive it to work and back everyday and no issues. It was very scary to sit on the side of the freeway for over two hours and 50 miles from home in the dark. I had to car the car towed to our home cost me almost 200.00. Mechanic looked at it and believes it is an engine failure. There are metal shavings in the oil. I can not drive my car it is in my driveway and will not stay on. Never had anything like this happen before. It is a 2015 with 106,000 miles.
March of 2022 the engine stalled out and found out due to coolant leaking from head gasget area. Put new engine in and July 2024 the new engine started stalling and knocking. No warning lights. In middle of busy traffic and died. Rod bearings failed and metal shavings appeared in engine. Need another engine but can't afford it. Dealership said its manufacturer problem. I know other kia engines were covered under the problem with rod bearing but ours wasn't. This should be included
While driving home from picking my children up, engine started making a knocking noise. No warning lights or indicators were illuminated. Engine stalled while pulling down my driveway. Took it in for a Diagnosis. Metal flakes have been found in the oil. 3.3L Lambda two engine reliability is already being questioned.
On Sunday 2-4-2024, at ~2-3am, my daughter & her boyfriend were driving her 2015 Kia Sorento on I69 near Fishers IN (67 miles from their home) when the engine rod bearings failed. Driving at interstate speeds, they immediately pulled over to the shoulder. If traffic had been bad, this could have caused a deadly accident. This created an emergency roadside service issue. Fortunately, my daughter's boyfriend was with her to help her through this anxious & traumatic event. It took a couple hours (in freezing cold weather) for them to figure out what to do. They called us (her parents) at 5am for assistance. They eventually got a tow truck to tow the car back to our hometown's Kia dealer for service. On the next business day, the Kia Dealer diagnosed the problem as a blown rod bearing; the engine was locked up. Cost to repair will be ~$5900 plus a $589 towing charge. Quotes are included with this complaint. After some research, I discovered that faulty rod bearings is a HUGE problem on mid-2010's Sorento 2.4L engines. The internet is full of customer complaints on this. In addition, there is even a Theta II Class Action Lawsuit on this. The problem is THAT pervasive. I have contacted Kia Customer Service (Irvine, CA) and the Kia Theta II Customer Service group. They explained that because they obliged by conditions of the Theta II lawsuit, which, for them was two mailings to DMV registered owners in summer 2018 & summer 2019 requesting owners to install an ECU software upgrade (followed by a 3rd mailing by the lawsuit handling firm: Epiq), that their liability on this matter is covered. The previous owner did not open or see these letters. So this upgrade was not done on this car. To me, Kia/Hyundai acted in BAD FAITH not to continue with mailings (once every 6 months) to all DMV registered owners UNTIL all registered cars had dwindled to very low numbers (<10% of initial sales). Therefore, I think they are STILL liable for this safety & traumatic issue.
While driving my 2015 Kia Sedona, was at a stop sign and began making a left turn. Half way thru the intersecion the vehicle just stopped running. I managed to get half off the 2-lane road, blocking half off the road with traffic coming both ways. I was there approximately 45 before the tow truck came to tow the car to the mechanic's shop where he confirmed the problem was a common problem with the 2015 Kia Sedona. There was absolutely no warning that the vehicle was going to become incapacitated, no warning lights or messages prior to the failure.
I was driving and it started to make a knocking noise thays when i saw the engine light come on then my car turned off. I took it to autozone and 2 sensors are bad. I went to pep boys and they said that it needs a engine replacement and it falls under the tsd dates. I called my Kia dealership and they said that they don't see any recalls on my vehicle.
What component or system failed or malfunctioned? The engine began leaking hot air bubbles into the cooling system, causing hot coolant to leak into the harness and parts of the car. Is it available for inspection upon request? No, the manufacturer has responded that it does not cover the warranty because it is in another country, although the brand is present there. How was your safety or the safety of others put at risk? When heating the system there is a risk of burst hoses or catastrophic damage to the systems when driving and therefore risk of explosion or fire. Has the problem been reproduced or confirmed by an independent dealer or service center? Yes, through an independent service center in the country where the vehicle is currently located. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Mechanical technicians state that it is a factory defect. Were there warning lights, messages or other symptoms of the problem before the failure and when did they first appear? No warnings, just hot coolant splashing onto the engine. Kia Sorento is a family vehicle, which we could not enjoy due to engine failures. Considering the timely maintenance, the brand must respond for the risk we ran by driving a vehicle with a catastrophic engine failure.
My car died when I stopped. No warning lights, no warning whatsoever. I had to push my car out of traffic. I was able to start it again after a couple minutes but immediately a knocking sound started. I was encouraged to get an oil analysis by my mechanic friend in which it states my oil is fine and describes the metal found in the oil and where it likely came from.
2015 kia sorento 3.3 GDI engine out of know where the car stalled on a hwy engine now knocks loudly was told it has to be completley replaced no warning or anything kia is saying its going to be 11k to fix
In 2020, we started noticing the smell of engine coolant and the continuous running of the engine fan after shutting the engine off. The temperature gage never indicated any issue. We took the vehicle to the dealer to address the issue. Upon inspecting the vehicle, it was determined that there was a failure of one of the engine block bolts, which cause the coolant to seep in to the engine block. The dealer stated the engine needed to be rebuilt, because the bock was not salvageable. We then contacted Kia to question the failure and were told that the repair was not covered, because of the milage on the vehicle. In 2024 we received a recall notice, which stated they were now taking responsibility for the repairs and all we needed to do was submit documents showing the repairs were made. We did so, two months ago, however after submitting the documents Kia has not given us a reimbursement or provided updates on the status of our claim.
With regular maintenance, at 138,000 miles my engine has a crack in the block and an inner oil leak that hadn't been previously detected during oil changes, which may have been a result of the check engine light that read camshaft issues just before it happened. All the other recalls and problems these kia engines have had I'm sure I'm not the only one with this issue.
The engine cut off while driving. The mechanic said the motor seized and needs $8k in repairs. Kia said I missed a software update that is needed in order to be eligible for an extended warranty and they denied the repairs. I never received notice that a software update was needed.
I previously reported an engine complained submitted on 9/14/2023, ID 11544548. My engine started knocking while I was driving on a major highway without any warning lights or indications. a claim to Kia was made as I was told by the Kia dealership I would need engine replacement however Kia offered no explanation as to why the engine failed nor any explanation or seemed to care one bit that I was on a major highway and this occurred without any warnings whatsoever. I understand there is current recall for some v4 engines of the sorento model I had and I firmly believe the 3.3L v6 engines should be investigated.
There is oil leaking into my coolant. I had it flushed, hoping it was just a fluke. Then noticed there was more oil getting into my coolant. I had the vehicle inspected again and they stated it was probably a blown head gasket, or a cracked head.
Ongoing issue with coolant mixing in the oil causing overheating in the engine. I believe this a safety risk as driving the vehicle for longer than 30 minutes causes the engine temperature to rise dramatically and risks complete engine failure, potentially when driving at speed. Vehicle has not been examined by a dealer. We've just become aware this is apparently due to Kia's known soft block issue.
The car started shaking, it slowed down and stopped and all the lights on the dashboard came on and there was a loud sound and I turned the car off. I called towing, got my car back and took it back to the dealership. At the dealership they checked the car and called the warranty company who sent an inspector... The Ethos group told me that there were some errors in the report and that they still couldn't give me information, after two weeks the dealership called me and told me the warranty denied the claim. The denial claim said it was the coolant hoses that caused the engine problem and overheating, but I bought the car from the dealership when it had 85,063 miles on it and it hadn't even passed the year when the engine blown off and the car had 100,381 miles and has regular maintenance at the dealer. Before any lights came on on the dashboard it started shaking and slowing down and all the lights were on... how can they said the car overheated but no light of warning?
We were driving our car and it all of a sudden just stopped working. We luckily were able to pull over before it stopped completely, no noise, jerk motion or anything the engine just stopped. We had it towed to a mechanic who said our engine blew. It only had 140,000 miles on it but the repair/replacement we were quoted would have cost us more than the vehicle was even worth so we ended up having the car junked.
1. The engine seized and lost total power at 74,795 miles due to faulty rod bearings manufactured by KIA and due to metal shavings left within the engine compartments. Yes, I have the vehicle in my possession. It is stored at my apartment garage and it is available for inspection. 2. I was driving my vehicle on the highway prior to sudden engine seizure and loss of power. The check engine light appeared for the first time on [XXX]. I immediately took my vehicle to my mechanic (same day on [XXX]) where it seized and lost complete power on the road. It had to be pushed into the mechanic's garage by hand. Total loss of power of my vehicle could have resulted in a catastrophic accident and injuries to myself and others. I could have lost control of the vehicle and I could have been rear-ended or side-swiped at a high speed on the highway or the street. Additionally, my vehicle was recalled due to a faulty HECU/ABS Module, which could have resulted in engine fire and it was recalled due to increased theft risk because my vehicle was manufactured without an engine immobilizer. KIA did not notify me of any recalls nor did they notify me of their self-proclaimed and self-manufactured KSDS and "Product Improvement Campaign - P11802". KIA Corp (Irvine, CA) only provided a SAMPLE letter on 11.13.23. 3. Yes, the defect was confirmed by my mechanic, KIA Corp, and by the Grand KIA dealership in Thornton, Colorado. 4. Yes, the vehicle was inspected by the Grand KIA dealership in Thornton, Colorado. Grand KIA confirmed that there was no rotation of the crankshaft and no power or codes detected upon scanning the engine. Grand KIA confirmed that the engine failure was due to their faulty rod bearings, but denied engine replacement because I did not upgrade my engine with their KSDS/"Product Improvement Campaign", although they upgraded my car with the KSDS upon diagnosis to cover up. Grand KIA stated that engine seizure is not a safety issue. 5. Yes, check engine light. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Coolant leak, due to stripped head bolts.
You forced kia into an extended warranty for an engine defect. They warranty 2016/17 models under WTY035 but it also happens to 2015 models. I'm hoping this can be extended.
HEAD GASKET BLOWING
Weak head bolt threads that are easily stripped and causes excessive leaks
Engine has seized. Mechanic at local automotive shop stated that the engine seizure is due to engine burning oil internally. Told me to call KIA because they were aware of this problem due to safety recall. I reported problem to KIA dealership but was told there was no safety recalls relating to my vehicle. Check engine light has been coming on sporadically since 2018 along with my vehicle randomly stalling while idling in traffic. KIA was made aware of these problems and did a diagnostic, stating that the light wasn't on during inspection. And there was no reason for stalling. Also reported smell of chemical and fumes several times but nothing was found. When my vehicle reached 100k miles I was told by KIA dealer that it is normal for the check engine light to stay on due to wear and tear/high mileage. Engine seized while driving.
My engine is using excessive amounts of oil. I am having to fill the engine with oil in between my 3000-mile oil changes. No oil is leaking in my driveway. I just started an oil consumption test with a dealer and after driving it 1000 miles I brought it back to them as they asked, and the engine oil level had dropped by almost 4 qt. But after making some calls with KIA regional they said they my car wouldn't have the engine replaced due to it not being in the recall. KIA knows there is a problem with their engines and will not fix the problem.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2015 Kia Sorento has 267 Engine complaints on file. 1 crashes have been reported. Review the timeline above for detailed owner experiences.