Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Kia Optima owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2014 Kia Optima. The contact stated while driving at an undisclosed speed, the contact noticed smoke that exited from under the front hood of the vehicle. The contact stated the smoke was intense. In addition, the contact was informed by a nearby driver that fire was coming from underneath the front of the vehicle. The contact drove the vehicle into a nearby parking lot and exited the vehicle. In addition, the contact's disabled son was also an occupant in the vehicle making the situation very frightening. The fire department arrived and extinguished the fire. A fire report was filed. The vehicle was towed to a local tow yard and mentioned the fire was electrical. The vehicle was condemned as a total loss by the insurance company. The contact was informed that due to the vehicle fire, the local establishment sprinkler system was activated and caused damage. …
I owe a lady made a complete stop in front of me and I hit her. I wasn't traveling close behind her. Her car was not damaged at all, but my Kia was totaled from the front. They had to cut the car off because it was smoking like it was gonna catch a fire. I've been had this sign on my car the steering wheel with an! It says that the car is hot before the car accident I had driven to [redacted] back to my house in the car motor was just shaking up under even though the car was off about 1015 minutes a hour late I had to wreck.
Odometer Fraud. The contact purchased a 2014 Kia Optima. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 71,527. However, upon taking the vehicle to the dealer due to excessive oil consumption, the dealer informed the contact that the actual mileage was over 200,000 as per the Carfax report. The seller was contacted but did not provide assistance.
The car is available upon inspection, the car caught on fire after being driven for about 45 mins. Smoke started to come from under the car hood, fire starting dropping from underneath the vehicle and then fire started coming from under the hood of the car. The car started smoking while being inside vehicle and the fire could've spread. The fire was put out by the fire department, the vehicle has not been inspected as of yet. No warning signs.
The contact owns a 2014 Kia Optima. The contact stated while his son was driving 45 MPH, the vehicle lost motive power and stalled. The contact's son was able to pull over safely. The contact attempted to jump start the vehicle however, the vehicle would not start. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired. The manufacturer was not contacted or notified of the failure. The failure mileage was 97,484.
On 7/13/26 around 0715 my son was driving our 2014 Kia optima when it caught fire and burned from the engine to the back of the car. Fire dept and law enforcement had to respond and the vehicle along with thousands of dollars of property was destroyed by the fire. This vehicle is a total loss and I'm trusting an investigation as to I believe their fire started due to the engjbe and electrical faults of Kia motors.
Today, 7/11/23, I was traveling on the interstate with no issue. Upon exiting the interstate up a slight hill, there was one car in front of me, I let off the gas and began to roll backwards I hit the brake and didn't think anything of it at first. The car in front of me pulled forward and I took my foot off of the brake and began to roll backwards again, I hit the gas and nothing happened, during this I also heard what sounded like a clunk noise. At this point I put my flashers on and looked at the dashboard, I saw three lights that have never appeared before. (Oil light, battery light, and check engine light) I placed the car in park and sat for a moment. The car was still on but not running, I pressed my start button and the car turned over the lights went off and I drove about 3 miles down the road to a lot. …
Summer 2017 The engine failed while driving with my family. The engine seized and a fire was engulfed. I was in the interstate and we feared for our life. Out of town visiting family we were stranded in another state for a month waiting for repairs. Kia took the vehicle and replaced the engine with another faulty engine that has seized several times while commuting. I have been living in fear and anxiety since this incident. I never know if I start my engine if I will loose my life. Summer 2023 3 teenagers watched a viral tic tok challenge and learned how faulty the cylinder that Kia installed was. The teens then trespassed into my home, broke the windows and stole my vehicle. I have lived in fear since this has happened. I have lost jobs, income, and peace due to The purchase of this vehicle. Kia has never assisted or kept the promises they made to restore the vehicle. …
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! …
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. …
NHTSA investigations
Non-crash Vehicle Fires
During this Preliminary Evaluation (PE), the Office of Defects Investigation (ODI) assessed the scope, frequency and potential safety-related consequences of non-crash vehicle fires caused by both engine failures and failures of other vehicle systems/components in model year (MY) 2011-2014 Kia Optima, MY 2011-2014 Kia Sorento and MY 2010-2015 Kia Soul vehicles equipped with Theta II, Gamma, Nu and Lambda II engines…
Non-crash Vehicle Fires
In a letter dated June 11, 2018, the Center for Auto Safety (CAS) petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into non-collision related fires on model year (MY) 2011-2014 Kia Optima and Sorento, and Hyundai Sonata and Santa Fe vehicles. In a letter dated July 24, 2018, CAS requested that MY 2010-2015 Kia Soul vehicles be added to the petition.
Electrical complaints in other Optima years
Frequently asked questions
How common are electrical problems on the 2014 Kia Optima?
NHTSA has 60 complaints about the electrical system of the 2014 Kia Optima, 10% of the model year's 590 complaints. The component named most often is instrument panel › speedometer/odometer (1 mentions).
Is there a recall for 2014 Kia Optima electrical problems?
No. NHTSA lists no electrical system recall for the 2014 Kia Optima, though it has 7 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 Kia Optima electrical problems start?
Half of the complaints with a recorded mileage happened before about 72,000 miles, and 10% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 9 fires and 7 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.