2011 Kia Optima: engine failure

Filed Jul 23, 2026 · Engine · FL

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 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 the federal safety agency 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.

Filed Jun 4, 2026 · Electrical · LA · fire

The contact owns a 2011 Kia Optima. The contact stated that while the vehicle was parked in a parking lot, he noticed the vehicle started smoking heavily from under the hood, and shortly thereafter, the vehicle fully ignited into flames. The vehicle was occupied during the fire. The contact stated that he noticed smoke emerging from the driver-side section of the hood. Furthermore, the contact noted that the power door locks failed to unlock automatically, requiring him to manually unlock the door to exit the vehicle safely. The color of the smoke started off light and quickly turned black. The contact stated he noticed a burning electrical odor during the fire. The fire started at underneath the hood, and stayed in the engine bay. No property damage. The location of the fire was the engine compartment. The fire was extinguished by the local fire dept by water. A Fire Department report was not filed. No police report was filed. The vehicle was totaled. No injuries occurred. The vehicle was towed to a independent auto shop. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage on the odometer was 219,000, but the vehicle had a previous engine replacement.

Filed Apr 8, 2026 · Engine · GA

I am submitting a complaint regarding my 2011 Kia Optima (VIN: [XXX] ), which is currently experiencing significant engine issues and is undrivable. This issue is currently being reviewed under Kia Case #XXX. 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 (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)

Filed Oct 29, 2025 · Engine · TN

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.

Filed Mar 21, 2025 · Engine · 68,500 miles · PA

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 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.

Filed Jan 26, 2025 · Engine · CA

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.

Filed Sep 10, 2024 · Engine · WI

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 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.

Filed Jan 11, 2024 · Transmission · CA

While driving on the road, I came to a stop at an intersection. While waiting for the green light the engine stopped running. I tried starting the car by pressing the brake and the push start button and the car only clicked and did not start. I pushed the car off the road. After several attempts to start the car it wouldn't start and it started smoking it looked like it was coming from the starter location. It appears that the engine seized and it won't turn over.

Filed Oct 20, 2022 · Brakes, Electrical · OR

I was driving out of town and when I went to accelerate and the engine had seized, the brakes had locked up and I lost power steering which almost resulted in an accident. On the dash was showing the engine, oil, and esc light, which were not on the dash before and there was nothing wrong or weird going on with the car prior to the first incident to even indicate that something was wrong. Had to get the car towed home then realized there had been a recall on the engine. Contacted the kia manufacturer and they had towed it to a kia dealership where they replaced the engine. Waited 2 Months to get my car back, the dealership let me leave with the ABS and Eps light on the dash, and couldn't give me a reason why the lights were still on. I had it for 3 days, it drove okay and now it no longer drives nor does it start. I was stranded because the car wouldnt start again giving the same issues as before the recall repair was done, with only accessories turning on. On the dash it only shows Engine, Oil, Eps and battery light. Found the Serpentine belt already coming apart and misplaced, found strips of the belt laying in the bottom of the hood. Also had found out the entire engine block ROCKS BACK AND FORTH while car is in motion. If I had driven the car any longer the belt would have completely snapped and would most likely result in an injury or worse. With the Engine movement that is also going to cause other damages to the car and more safety hazards. I have not even known about the engine recall on this car until after everything happened and when the car was purchased no one had notified me in anyway about the recall. Now they refuse to cover towing costs back to the dealership because the "5 year warranty had expired" When this in no way is my fault. Second incident was Oct. 17th 2022.

Filed Jul 3, 2022 · Engine · AL

My 2011 Kia Optimas engine light started flashing and the car lost all power and had no RPMS over 1000-2000. I took it to the dealership where I was told it had a code P1326 and they replaced a knock sensor. The same day that I picked my car up from them I was going down the interstate and it shut completely off and wouldn’t crank. I had it towed back to the dealership where they said I would most likely need a new engine. A few days later they call and say the engine won’t be covered under the recall because of some hose they claim was leaking for the cooling system. They said it now had a blown head gasket which I’m not sure how because it never ran hot. This is absolutely ridiculous for customers to deal with so many delays and problems just to get the repairs on their vehicle that Kia has agreed to make. If my vehicle needed a knock sensor then obviously the damage to the motor is because of faulty manufacturing of parts and I shouldn’t have to pay for a new motor!

Filed Apr 6, 2022 · Steering · 120,000 miles · IL

The contact owns a 2011 Kia Optima. The contact stated that while driving at high speeds, the steering wheel seized. After the steering wheel was released, an abnormal sound was heard coming from the steering wheel. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The vehicle had previously had the steering column and steering rack replaced at the dealer; however, the failure recurred. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 120,000. The VIN was unavailable.

Filed Dec 20, 2021 · Engine · TX

I as driving on the highway and all of a sudden the car would not accelerate. The engine light, oil light, air bag lights etc. all turned on. The speed quickly dropped but I was able to to move into the safety lane. The card finally stalled and would would not start. I tried turning it back on, but the engine would not crank. The lights, radio, AC would still turn on, but the engine would not start. I have maintained it's scheduled maintenance and I was under miles until it's next oil change considering I had just changed it a month ago. I took it to get checked and was advised there was no oil and the engine was seized. I never received a warning the oil pressure was low. My car is over the 10 years and/or 100,000 k warranty as it was purchased 8/2011.