2014 Kia Optima: sudden loss of power

Filed Aug 25, 2026 · Engine · CA

XXX engine seized while driving on freeway — lost power, no crank, dash lights work, coasted to shoulder — safety hazard. Towed to Nayo's Auto [XXX] then to Kearny Mesa Kia [XXX]. Dealer confirmed 6 open recalls including recall 17V224 SC147 engine bearing failure / premature wear from machining defect. Kia corporate denied engine replacement under 15 year 150k extended warranty because product improvement PI1803 knock sensor update was not done. I never received PI1803 notification. I moved throughout [XXX] cities [[XXX] area] until moving to [XXX]. Kia mailed to old [XXX] addresses, forwarding expired, I never received at current address. All service since purchase was [XXX] not Kia dealer, so update never caught during service. I did not refuse update, I never knew about it. Vehicle is inside 15 year 150k miles and years, known manufacturing defect, not maintenance neglect. [XXX] maintenance on Carfax, DIY oil changes with receipts. Requested goodwill exception due to missed notification from moves — corporate denied via email, case on file. Request the federal safety agency review — safety defect, known recall, denied warranty due to missed notification from moves. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 20, 2026 · Engine · TN

My vehicle was having engine problems in 2024. It was towed to the dealership because it was a recall on it. The new engine is malfunctioning as well causing me to lose power while driving. I have only put 2,000 miles on the car since the engine was replaced.

Filed Dec 28, 2025 · Engine, Transmission · MA

The engine failed after a prior engine replacement performed by the manufacturer. The failure caused the vehicle to become non-operational and created a risk of sudden loss of power and engine stalling while driving. The vehicle required towing and could not be safely driven. This is a repeat engine failure involving the same vehicle.

Filed Aug 16, 2025 · Engine · CA

While driving my 2014 Kia optima on the freeway the vehicle lost power completely and the car stopped almost causing me to be rear ended. I have reached out to Kia in Dublin since the vehicle should be covered under SC147 the vehicle has been at KIA since May and Kia is refusing to do repairs.

Filed Jul 4, 2025 · Engine · MD · fire

On 3 July 2025, while driving the car suddenly lost power and started smoking under the hood. I pulled over, exited the vehicle, and an engine fire started a minute later. The fire department put out the fire. The safety of myself and my child were at risk. We were driving at 40 miles per hour when the car lost power and caught fire. There were no warning lights. The car was towed to an independent repair shop to be evaluated, but results have not yet been gathered. There are known issues and recalls associated with 2014 Kia optima and with its engine losing power and catching fire, but my VIN was not included in the recalls when it should have been. This could have resulted in injury or the loss of life. At a minimum it has caused a loss of financial stability for my family due to Kia failing to produce and maintain safe vehicles.

Filed May 8, 2025 · Brakes, Engine · 133,000 miles · KS

The contact owns a 2014 Kia Optima. The contact received notification of the federal safety agency Campaign Number: 21V331000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that there was a burning odor coming from the engine compartment. The contact stated that while driving 5 - 10 MPH, the vehicle suddenly stalled and lost all power. The contact was unable to restart the vehicle. The ABS, check engine, and battery warning lights were illuminated. The vehicle was towed to the dealer. The manufacturer was made aware of the issue. The failure mileage was 133,000. Parts distribution disconnect.

Filed Oct 27, 2024 · Electrical, Engine · GA

Complaint Summary: I am the current owner of a 2014 Kia Optima, which is affected by recall 23V652 related to the Hydraulic Electronic Control Unit (HECU). The vehicle was imported to the UAE, and the recall was not addressed by the previous owner. As a result, I am now facing significant safety issues. Since taking ownership, I have encountered multiple engine problems, including sudden power loss, severe vibrations, and abnormal behavior from the throttle. These symptoms align with the issues outlined in the recall notice, indicating that the vehicle may pose a safety risk to me and other road users. Despite my efforts to diagnose the problems, I have already incurred costs exceeding 13 AED on various repairs and diagnostic services, all while being unaware of the existing recall. It was only recently that I discovered the recall information online, which has heightened my concern regarding the safety of my vehicle and the potential for further complications. Given these circumstances, I am requesting assistance from the federal safety agency in resolving this recall issue and guidance on how to proceed with the necessary repairs while the vehicle is registered under my name in the UAE. It is crucial for me to ensure the safety of my vehicle for my own protection and for the safety of others on the road. I appreciate your attention to this urgent matter and look forward to any support you can provide. Please let me know if further information or documentation is needed Thanks alot

Filed Nov 8, 2023 · Electrical, Engine · PA

I was with my family on PA I-476. While traveling home in our 2014 Kia Optima the vehicle’s dash lights such as oil lamp, battery, etc popped on. As soon as I noticed the lights the vehicle had completely lost all drivability. Lights operable and possibly radio and accessories but I had to react so quickly as it was so unexpected. The vehicle completely lost its function and I was unable to operate it but in the capacity of steering and hardly able to break. Lost all power components. We are so thankful I was able to make a split second decision to dodge traffic while vehicle was decelerating, 18 wheelers going by 70+ mph (speed limit) and pulled off to one of the few shoulders. This scenario was so dangerous that if I didn’t believe in a higher being before, I do now! Most the lanes are sandwiched by concrete barriers and there happened to be a coned off area I was able to decisively pull over to. There was no warning this was happening. The vehicle was operating normally. The engine compartment was smoking and all I could think was to get my family away from traffic. The look on my wife and daughters face and the words my daughter asked me was life changing. The vehicle is at Kia dealership since Saturday night. It’s Wednesday and they cannot provide diagnostic yet but are charging me for a starter already? They began to inspect vehicle Monday.

Filed Nov 9, 2022 · Engine · OH

While driving on the highway, the check engine light came on and started flashing. The vehicle simultaneously seems to lose power. We pulled over immediately and looked flashing engine light up in the owner's manual and saw it meant emergency and not to drive the car any further. Today, we are paying to tow the vehicle. After searching google, this seems to be a common issue in similar years of Optima's, yet it seems Kia is not addressing this. See blog at: https://cargurus.com/Cars/Discussion-t57983_ds1051588

Filed Nov 9, 2021 · Transmission · TX

Lost power train while driving on the freeway. I put the computer on the car and I got code PO605.

Filed Aug 6, 2021 · NE

The engine seized up at 83,000 miles with all regular maintenance done. There is no specific cause of what caused that, as dismantling the engine would cost me more $. I have already spent $200 on the dealership and independents mechanic. I was merging on to the interstate and I lost all power, it was a narrow one lane, no shoulder section of the road, as it was also an interchange for a state hwy and the interstate. I had to limp over to the shoulder as traffic behind me began blaring horns. The shoulder I did find was a narrow gore, and I was very uncomfortable while getting a tow and ride setup. I was terrified I was going to be sideswiped at any moment. I was told by my trusted mechanic it was the Hybrid battery. The Dealership said the engine seized up, which also damaged the battery. In either case, my car does not travel forward under its own power. I had no warning until the event happened, I just lost power.

Filed Jul 20, 2021 · Engine · 165,000 miles · CA

The contact's mother-in-law owns a 2014 Kia Optima. The contact stated while his mother-in-law was driving 65 mph, she heard an abnormal loud clinking sound coming from the engine and the vehicle suddenly lost power and stalled. Several unknown warning lights along with the check engine warning light were illuminated. The contact stated as he opened the hood of the vehicle to determine the cause of the failure, he noticed the engine pistons had fractured and there was a hole in the engine. The vehicle was towed to the contact's residence, then to the dealer who diagnosed that the engine needed to be replaced. The manufacturer was made aware of the failure but advised the contact that the vehicle could not be repaired under the federal safety agency Campaign Number: 17V224000 (Engine and Engine Cooling) as it was out of warranty. The contact was awaiting a call back from the manufacturer. The vehicle was not repaired. The approximate failure mileage was 165,000.