- The problem
- Kia Motor Company (Kia) is recalling certain 2011-2014 Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles. Machining errors during the engine manufacturing process may cause premature bearing wear within the engine.
- The risk
- Bearing wear may result in the engine seizing, increasing the risk of a crash.
- The fix
- Kia will notify owners, and dealers will inspect the engine assembly, and replace the engine if necessary, free of charge. The recall began June 20, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC147.
Engine & cooling
2011 Kia Optima Engine problems
Owners have filed 262 complaints about the 2011 Kia Optima's engine & cooling with NHTSA - 44% of all its complaints, most recently on October 7, 2026. They describe 6 crashes, 22 fires and 5 injuries. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 262
- Recalls
- 1
- Crashes
- 6
- Fires
- 22
- Injuries
- 5
- Deaths
- 1
Engine recalls for the 2011 Kia Optima
Engine complaints
The contact owns a 2011 Kia Optima. The contact stated that while a family member was driving and exiting a parking lot, the vehicle turned off, causing the vehicle to lose power. The contact stated that there was a burning odor inside the cabin of the vehicle with an audible clicking sound coming from the starter motor. The vehicle was towed to a local authorized dealer. The contact referenced NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) and Kia Warranty Bulletin 2017-09.R4 as the possible causes...
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for the failure. The manufacturer was notified of the failure but refused to accept or authorize the recall repair because the vehicle had a salvage title. The authorized dealer also declined to service the vehicle due to the salvage title. The failure mileage was 77,500.
I own a 2011 Kia Optima, VIN [[redacted]]. My vehicle was taken to Rockwall Kia on August 25, 2026, for completion of NHTSA Safety Recall 23V-652 / Kia SC284TF involving the HECU fuse. The dealership replaced the HECU multi-fuse and label kit. Before the recall repair, the vehicle was operating normally. The same day I picked the vehicle up after the recall repair, the vehicle began dying while I was driving. I also noticed a burning smell. I returned the vehicle to Rockwall Kia. Their August 31, 2026 repair...
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order documents my complaint and states that the vehicle would die while driving and that this problem "DID NOT BEGIN UNTIL AFTER RECALL COMPLETED." The repair order instructs the technician to inspect whether the recall was completed properly and diagnose the concern. I am concerned because the HECU recall involves an electrical short/overcurrent condition and Kia's recall documentation specifically identifies burning/melting smell and smoke as warning symptoms. I am requesting that NHTSA document this complaint and review whether the post-recall stalling and burning smell could be related to the HECU recall repair or indicate a continuing safety problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I was having trouble with my left driver tire. 2 mechanics went to test drive the car to see what the problem was. As they were driving, the car died. They got it started but it ran horrible back to the garage. When they pulled in the driveway of the garage, the car started on fire. It was an engine fire but undetermined what exactly was the cause. The vehicle was looked over by the insurance claims adjustor. I am not sure if sluggish driving had anything to do with the fire. The car is totaled.
The vehicle's engine had previously been replaced once under Kia's Theta II engine recall/warranty program approximately five years prior to this incident. On the date of failure, the replacement engine catastrophically failed while the vehicle was in operation, resulting in the engine developing a hole in the engine block and becoming inoperable. Prior to the failure, the vehicle exhibited a "check engine" warning and symptoms consistent with connecting rod bearing failure. Diagnostic trouble codes P1326 and P0303...
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were present upon inspection at an authorized Kia dealership. The failure occurred at approximately 198,000 miles. This is the second engine failure on this vehicle, both consistent with the known Theta II engine defect involving premature bearing wear and connecting rod failure that has been the subject of prior NHTSA recalls and a related class action settlement. The failure created a risk of sudden loss of engine power while driving, which can pose a safety hazard in traffic. The vehicle was inspected by the authorized Kia dealership, which confirmed the hole in the engine block and the diagnostic codes noted above. The engine and related repair estimate are available for inspection upon request. A warranty claim for repair coverage was submitted and denied by the manufacturer, citing insufficient maintenance documentation, despite this being the vehicle's second occurrence of the same underlying defect.
The contact owns a 2011 Kia Optima. The contact stated that the vehicle caught fire while driving at 60 MPH on the expressway. No warning lights illuminated. The contact had some wires replaced prior to the failure. There were no reported injuries, air bag deployment or crash. The driver was able to pull over safely. The fire department was able to extinguish the fire. A police report was filed. The vehicle was towed to a tow lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was called but there was no answer. The failure mileage was approximately 35,000. The VIN was not available.
I am submitting a complaint regarding my 2011 Kia Optima (VIN: [[redacted]] ), which is currently experiencing significant engine issues and is undrivable. This issue is currently being reviewed under Kia Case #[redacted]. This vehicle is part of the Theta II engine group that has been the subject of recalls, service campaigns, and extended warranty coverage due to known engine defects, including rod bearing failure and potential engine seizure. The vehicle has also received the Knock Sensor Detection System...
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(KSDS) update associated with these known issues. My vehicle is currently at the dealership and has been there since March 10, 2026. It is not drivable, and I have been without transportation during this time. The dealership has diagnosed the issue as oil consumption; however, Kia has denied coverage, stating that oil consumption is not related to rod bearing failure. Kia has not confirmed whether a full internal engine inspection was performed to rule out rod bearing damage, nor have they confirmed that a Techline engineering review has been conducted. Given the known history of engine defects in this model, I am concerned that the current condition may be related to internal engine failure that has not been properly evaluated. Oil consumption can be a precursor or symptom of internal engine damage, and I do not believe the issue has been fully or adequately diagnosed. Additionally, my vehicle has an open safety recall related to potential engine compartment fire risk, which further raises concerns about the safety and reliability of this vehicle. I am requesting that this issue be reviewed as a potential safety-related defect, as the vehicle is undrivable and may be at risk for sudden engine failure or fire. I am also concerned that the manufacturer is relying solely on a dealership-level assessment without a thorough engineering evaluation of a known defect condition. Thank you for your review of this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I was driving in the highway doing about 80mph passing a semi truck when all of a sudden my vehicle went from 80 down to 50 mph and I was jerked forward. I thought I was rear ended but when I looked in my rear view mirror no cars were behind me. I looked down and noticed my engine light, battery light and oil light were on and turned down my music and could hear my engine was no longer running. Thankfully there wasn't much traffic and I was able to coast to the side of the highway and turn the car off. If someone...
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would have been behind me I am confident I would have been hit. The problem has since been confirmed by a dealership and info has been sent to Kia. The dealership was unable to provide me with a loaner car as "they had none available" so I contacted Kia corporate and they are telling me my only option is that I have to come out of pocket for a rental and they will reimburse 40$ per day. I don't think especially since I had to pay for 2 nights in a hotel as I was stranded, a few hundred dollars for a tow that I should have to pay anything as the issue with what happened to my car is the fault of Kia at the time of manufacturing. At this time I have been without a vehicle for 1 week. I was told by the dealership today that they sent all of the required info over to Kia to get word on whether the lifetime extended warranty would pay for my car to be repaired. The previous owner before me did have the KSCS update performed as mandated by Kia. My problem is I am already out almost 1000$ and now they are telling me I have to pay for a rental also, they will not help me except for reimbursement which doesn't even cover half the cost of a rental per day. I am not a rich person and I cannot afford that. Everything I've read and been told indicates that a loaner or rental car is to be provided me especially if it is due to a safety concern/recall issue. I've spoken with several kia representatives and I get nowhere. I am upset.
I was driving down the road with my 3 sons in the vehicle and all of a sudden the vehicle and engine seized completely up and turned off. I contacted kia dealership who advised me to bring it to kia of Johnson. I took it there and my vehicle has just been setting there. It's under warranty and backed by a theta2 class action lawsuit. And they still won't touch it and are very rude.
The Engine locked up while driving down the highway at 60mph. Not possible for inspection vehicle currently broke down at shop. I barely had braking power to stop vehicle. Has been confirmed by Kia dealership. Yes vehicle has been inspected by vehicle manufacturer. Check engine light came on 5 seconds before locking up. Happened [[redacted]] at [[redacted]]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2011 Kia Optima. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine. There was no warning light illuminated. The vehicle was taken to an independent mechanic who noticed that the engine oil level was abnormally low, and that there were no visible signs of an oil leakage. The oil level was topped off; however, within 3 weeks the oil level was abnormally low again. The vehicle was taken to a local dealer to be diagnosed and the contact was...
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informed that an excessive oil consumption was not included in the engine replacement warranty extension. The contact was informed that a further diagnostic test was required. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,500.
Engine is knocking with check engine ligh on. Kia has a recall on my car for metal shaving in the engine during manufacturing process. I took it to Kia dealer but they refused and said they wont cover it because it's a Salvage tile, and I thought Salvage tiles are covered if it's a a safety recall but they said it's not covered because Kia wont pay them for the repairs or the new engine.
Hydraulic Electronic Control Unit (HECU) experienced an electrical short circuit and engine hardly running.
2 weeks ago my 2011 Kia Optima's engine died while driving. I am the 2nd owner of the car and bought it in summer of 2022 (not 2020). Before buying the car private sale, I sought my mechanics advice who told me Kia engines had issues going back to 2011. Before buying, my brother called the closest Kia dealership to confirm the owner was telling the truth that he had taken the car in for all safety recalls. Kia told my brother the engine and vehicle belonging to the VIN he provided were good to go and that the...
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engine recalls were done. After my car died, I had it towed to my mechanic and was told the engine was bad. I called Russ Darrow Kia and informed them of the situation. I don't recall who I spoke with, but I asked about the recalls and any red flags that would void any warranties on the engine. I was told there were none and I should have the car towed to have them do an engine inspection. On September 7th, I called Kia because I had not heard anything about my car. I was told an inspection was done but the warranty was voided because a recall for NOX sensor had not been done. I called Kia consumer and spoke with a supervisor who just read a template of the Federal Lawsuit and how due to the voided warranty, Kia would not replace my engine. I explained how I had called prior to buying the car and confirmed the engine was up to date with any recalls and I had not received any recall notices for the NOX sensor nor any others pertaining to the engine. I only ever received a recall notice about the anti theft software. The supervisor was extremely insensitive toward me and told me there were numerous recalls and that whomever I called at Kia would have never told me the car was good to go. I would've taken it in if I knew about the recall, or any other. They are refusing to replace the engine. Kia is charging me $190 for their diagnosis and a quote on a replacement engine. The car was well maintained with prompt oil changes. I feel like I'm being scammed.
Mi carro estaba bien ninguna luz de testigos prendidos de pronto iba por la carretera conduciendo se freno y se apago gracias a Dios no ocurrió ningún accidente. Lo volví a prender sonaba el motor como si tuviera un tic tac y se prendió las luces de testigo de motor.
Recall states to not drive vehicle due to HECU which can result in an engine compartment fire. I have contacted 3 dealerships and corporate. There are 15,000 dealerships/service centers that have technology/technical issues. I have spent 3 days, and 12 hours trying to get assistance. I'm being told corporate is not providing any additional support or payment to individually owned dealerships. Expecting them to cover additional expenses. I am disabled and need to go to treatments/procedures multiple times a week....
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They are backed up 1-2 months for an appointment. Consumers are to pay everything up front and then 90 days later request a reimbursement. They will not provide or pay for a rental or loaner car until the car is being serviced. Therefore they are leaving me with no vehicle for up to 2 months as their letter clearly states that the vehicle is not to be driven and is unsafe. I should not be inconvenienced because Kia made a mistake and is now having to perform a recall, 15,000 stores are not able to perform because of technical issues, they are so far behind in their service appointments which should not have any effect on me and I should not be responsible to pay for any of this and they should absolutely provide me with the vehicle and not leave me with no transportation for 2+months. I am unable to get to my appts. for treatments, my daughter cannot Drive to work. And they have absolutely no solution for me and telling me that there is nothing that can be done other than me paying $45/day out of pocket. they Stated that I personally would be charged to do a full diagnostic test to confirm that there are no safety issues, however corporate stated that it was required in order to get my car back. This has been an absolute nightmare, I am also wanting to know if ada would get involved in something like this as they are not making any type of reasonable accommodation for me. There has to be a law preventing this that they are required to provide a vehicle unt
The contact called on behalf of an insurer who owned a 2011 Kia Optima. The contact stated that while the client was on the highway driving at an undisclosed speed, he was flagged down to be told their vehicle was releasing smoke. The client noticed an open flame coming from the undercarriage and was able to veer the vehicle to the shoulder prior to ejecting himself from the vehicle before it was engulfed in flames. The client sustained minor injuries to their knee and finger while exiting the vehicle. No other...
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injuries or passengers were reported. The fire was extinguished by the Fire Department. A fire report was filed. A police report was not filed. The dealer was not contacted. The vehicle was destroyed. The manufacturer was notified of the failure. The failure mileage was approximately 192,910.
I could not brake and almost caused a car accident. Brakes gave out, no gas, it smelled like it was going to catch on fire.
We had someone hit our vehicle and our ins co totalled the vehicle instead of repairing it due to the check engine light being on because of this recall
The contact owns a 2011 Kia Optima. The contact stated that while driving at an undisclosed speed, she smelled smoke in the interior of the vehicle. The air bag and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the knock sensor. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic), and the VIN was included, but parts were not yet available. The manufacturer was not notified of the failure. The failure mileage was 157,000.
On [[redacted]] while driving my oil light came on. Since I assumed I was low on oil, I proceeded to nearest gas station, approx 10 min.away, and added oil. I let engine remain off for approx.20 min. When I started the car up blue smoke began coming out from front and rear and there was a knocking noise. Since this is an engine that had already been replaced due to a recall, and now symptoms have returned I suspect engine might have failed again. I have always done my oil changes and have not had any issues. I...
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had car towed towed to San Jose and contacted a mobile oil service to have oil drained out and replaced. When he was finished he said there were particles in oil removed and suspected engine had failed and I should not drive. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA Recall
Could be the barons
The contact owns a 2011 Kia Optima. The contact stated that the brakes were making an abnormal noise. There was an abnormal odor of fuel detected. The windshield was fogging up. The engine warning light was illuminated and turned on and off. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 5,500. VIN tool confirms parts not available.
The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the vehicle failed to start up after not being drive for a while. The check engine warning was illuminated. The vehicle was taken to a local dealer to be diagnosed with an unknown result. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 180,000.
Known recall since Sept 2023, but Kia has not provided any dealerships with parts to repair (we have tried multiple dealerships within a 2 hour radius). Only recommendation is to "Park your vehicle outdoors and away from other vehicles or structures until you have the recall performed" which is an unacceptable option for 6 months. Now check engine light is on and still no indication as to when it can be fixed. Kia is not offering a loaner or rental until issue resolved.
Kia Optima engine complaints by year
Optima engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data