2015 Kia Optima Problems

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle stalled. During the failure, several unknown warning lights flashed on the instrument panel and there was smoke coming from under the hood of the vehicle. The contact exited the vehicle, and there were flames coming from underneath the hood. The Fire Department was called to the scene and extinguished the flames. During the failure, the vehicle was destroyed. A Police report was filed, and the vehicle was towed to a tow lot. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The contact stated that the original engine was previously replaced by the local dealer due to a previous recall. No further information was available. The failure mileage was 140,000.

My girlfriend was driving on interstate 95 to pick me up from the metro. The engine suddenly cut off in a manner that appears to have melted the wiring harness of the vehicle, risking fire. She was able to safely get to the side of the road and call a tow. After taking it to a local repair shop, they diagnosed the issue as related to the KSDS recall. We had it towed to the dealership that has also confirmed it is related to the recall. The engine is completely seized following this incident and it's worth noting that Kia is completely denying the engine repair claim as the KSDS update was not installed prior.

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the rear taillight socket wiring harness failed to function as intended. The contact was informed that the brake lights were inoperable. The contact stated that the failure had occurred every 6–7 months. The contact stated that the repair was completed by the contact. The dealer was not made aware of the failure but provided no assistance. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,000.

I would say that the time this incident happened I was driving and me and me nephew were in car at time taking to shop to see why it was making a sound like air and all of sudden the car started swerving and slowing down and then it made a pop sound and smoke started coming from the car and I was thankful that I didn’t get hit but affraid and also hit my head in car due to the sudden jerk car mad and then it popped sound a d smoke came from good. The next day I have to pay to get back on the other side and also tow it home which it been parked since but I see a recall on my vin and want to find out how to get it to the nearest Kia to fix the recall

I would say that the time this incident happened I was driving and me and me nephew were in car at time taking to shop to see why it was making a sound like air and all of sudden the car started swerving and slowing down and then it made a pop sound and smoke started coming from the car and I was thankful that I didn’t get hit but affraid and also hit my head in car due to the sudden jerk car mad and then it popped sound a d smoke came from good. The next day I have to pay to get back on the other side and also tow it home which it been parked since but I see a recall on my vin and want to find out how to get it to the nearest Kia to fix the recall

The contact owns a 2015 Kia Optima. The contact received notification of NHTSA 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 while starting the vehicle, the check engine warning light illuminated. The vehicle was take to O'Reilly's to be diagnosed. The DTC: P1326; was retrieved. The contact attempted to start the vehicle, but the vehicle failed to start. The contact researched online and found NHTSA Campaign Number: 20V543000 (Service Brakes, Hydraulic). The dealer was contacted, and it was confirmed that the vehicle was included in NHTSA Campaign Number: 20V543000 (Service Brakes, Hydraulic); however, the dealer refused to repair the vehicle because the vehicle was not currently registered and additional repairs were needed before a recall repair could be performed. The vehicle was being towed to the dealer. The vehicle was not yet repaired. The manufacturer was made aware of the issue. The failure mileage was approximately 137,000.

My 2015 white Kia Optima is having terrible paint peeling problems. It is peeling and chipping on the hood, along the sides of the windshield, above the wind shield, on my back bumper, above my back tires, and just about every place in between. PLEASE HELP!

Factory paint defect/delamination known to Kia causing excessive paint bubbling, peeling, flaking, large chunks of paint falling off, a widespread issue documented inherent to appear on the roof, front pillars both sides next to windshield, trunk, door panels and hood rapidly expanding. Notorious on model Optima 2013 - 2017 with Snow White Paint (SWP). This issue comes with an extreme safety hazard I am officially reporting to you; Windshield at Risk of Detachment - Paint defect has expanded inside the glass layers of the windshield up and down both sides causing the adhesive to bubble/weaken, potentially could detach causing serious injuries to myself, passengers and all other drivers. Citrus Kia Ontario, CA inspected my vehicle May and June 2025, confirmed damages are a result of a factory paint defect known to Kia and their body shop has repaired many of these Optimas with SWP. I was directed to file a report with Kia Customer Care, they will issue a claim number needed to schedule an appointment for repair. Kia denied my claim. Contact Dealer reporting paint defect; 11/7/2017 repair made for peeling paint Confirmation X03S999EM3, 6/11/24 officially reported paint cracking bubbling Claim # 16453820, May & June 2025 Citrus inspected my vehicle explained the damages to my vehicle a factory paint defect known to Kia, their body shop has already repaired many model 2015 Optima SWP, confirmed my vehicle is eligible for repair. I was directed to file a report with Customer Care, a claim number would be issued for so I could schedule a repair date. I filed a report. Kia reopened Claim 16453820 & denied the claim. I have written a formal letter to Kia Corporate requesting repair, no response.Kia's factory paint defect is a documented global widespread inherent issue affecting thousa+nds of Kia consumers, refusing to accept responsibility, refusing to honor TSB Extended warranty. This is a disgrace.Our vehicles look horrible & are safety hazards.

Driving down the road and my steering wheel light comes on sporadically and then I lose control of the steering wheel like it locks up and is almost impossible to turn or rotate and then other dashboard lights come on and I lose headlights. When that happens traction control light on dashboard, the ABS light, battery light and steering wheel light that has an exclamation mark to right of it comes on. The car keeps driving and doesn’t die but all the abs and driving wheel lock up so you cannot be in control of the vehicle.

Yesterday, [XXX], My 2015 kia optima engines reved up wothout me pushing the gas & within seconds later a loud noise and metal fell from under the hood. After pulling over, popping the hood on the passenger side and under the engine a fire had started. My daughter was seated in the back passenger side her door had locked, thankfully the passenger door was left opened bc within minutes the entire car was filled with smoke and engulfed in flames. Prior to this the steering wheel would jerk even while at a red light. This car just did have 100,000 miles & no knowledge this prior. Thank god i was able to get my daughter out of this vehicle & this didnt end in a tragedy due to negligence if this was a prior known fact. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

They were speeding with their phone in a phone stand watching a show while on the freeway

Nothing

The contact owns a 2015 Kia Optima. The contact stated that while attempting to start the vehicle or while driving at undisclosed speeds, there was an abnormal fuel odor inside the vehicle after the vehicle was serviced by the dealer. The contact stated that the vehicle received an undisclosed engine repair. The vehicle was not taken to an independent mechanic or the dealer to be diagnosed. The manufacturer was not notified of the failure. The failure mileage was 123,323.

12-01-2025 driving to work in the morning approx 7:00A.M. and turned on the heater and had a very strong smell like fuel so immediately turned it off. Cracked my windows to air it out and then was super cold again and had turned on the heater to try again. Immediately had to turn it off and rolled windows down to air it out because the smell was intense and had started to feel nauseas. Later in the day, about to head to lunch and had started the vehicle and smelt a lot like gas and turned it off and had someone come out to double check the smell. Co worker had strong smell from the hood area and looked underneath the car and can see a little drop puddle. Opened the hood and lifted the cover to engine where you can see the leakage coming from the center hose and spill puddle. Service tech came to take a look and advised its the fuel feed to the high pressure pump. This is a safety concern because fuel is extremely flammable and can put myself in dangerous situation of firing igniting in the car or hurt others around. No check engine light and prior the vehicle incident car has been consuming oil putting in about 1- quart a week or so with commute miles about 270 weekly.

P1326 code flashing engine light knock sensor went out 3 times in 6 months and just replaced it again and this time engine light didn't go off I was reading that there was a recall on this but apparently mine doesn't state it. Car cannot pass emissions if engine light is on and the 15th of June is approaching. The car doesn't make any sounds or nothing.

On December 27, 2025, at approximately 150,556 miles, my 2015 Kia Optima Hybrid experienced sudden engine knocking, power loss, and failure while driving at 65 mph on a highway. The vehicle dropped into limp mode and I had to pull off the highway. The car required towing to the dealership as it would not drive safely. Diagnostics revealed a knock sensor error (P1326 code) and failing connecting rod bearings via Bearing Clearance Test, consistent with the known Theta II engine defect (manufacturing debris causing oil starvation and premature bearing wear). This follows earlier symptoms: Intermittent 'Check Hybrid System' warnings in early December 2025 at 148,665 miles (dealership unable to reproduce, but historical codes noted). The Knock Sensor Detection System (KSDS) software update was performed in February 2022 during prior CHS warnings. Despite onset of issues under the 150,000-mile extended warranty limit per the Kia E2 Settlement, Kia denied coverage due to the minor mileage overage and directed me in a loop between Consumer Assistance and the Settlement Administrator. The defect poses a serious safety risk: potential for sudden engine seizure, stalling while driving, or engine compartment fire (as seen in related Theta II recalls and thousands of NHTSA complaints). No crash, injury, or fire occurred in my case, but the failure left the vehicle undrivable and unsafe on the road. I have service records and diagnostic reports to support this.

Airbag light on dash is on.

The contact owned a 2015 Kia Optima. The contact stated that while at a complete stop at the red traffic light, another vehicle, driving off a highway ramp at an undisclosed speed, crashed into the rear-end of the vehicle. An unknown red warning light was flashing. The air bags did not deploy. The seat belts failed to restrain the contact as needed, causing the contact to hit her forehead against the steering wheel, which propelled the contact's head back to the headrest, and then the contact hit her forehead against the steering wheel for a second time. The contact was able to exit the vehicle but felt dizzy and off balance. A police officer filed a report and informed the contact that the vehicle was safe to drive. The contact was able to drive the vehicle to the nearby hospital, where the contact received medical assistance. The vehicle was later driven to the residence, where it remained parked. The contact sustained a concussion, bruises on the forehead, neck, and lower back back pain, a worsening of the contact's generative bone disease condition. The contact might undergo a back surgery. The vehicle was towed to an independent mechanic two months later. Both the mechanic and the insurance company confirmed that the vehicle was totaled. The manufacturer was notified of the failure and informed the contact that the vehicle operated as designed during the incident. The contact was referred to the owner's manual. The failure mileage was approximately 62,000.

I’ve gotten my vehicle fixed four times now thinking it was an electrical issue, not aware of the recall. Did my research this fifth time when my brake lights completely went out and smoke at some point in times come through my air-conditioning. I’ve spent more money trying to fix the vehicle with no idea that there were issues already about it.

Low beam head lights visibility maybe reaches 3-4 feet infront of car at max. Have upgraded bulbs twice to higher lumens but still must run hibeams at night. I drive mountain passes daily and must use hi beams, not safe for oncoming traffic.

This is about paint damage on my Optima is a known factory paint defect.This factory paint defect, specifically paint delamination causes bubbling, peeling then flaking off in large chunks while driving, has been reported on 2015 KIA Optima with white pearl paint. The damages ares are exposed to the metal, subject to rust and corrosion. On 5/30/35 KIA in Ontario, Ca. Body Shop Manager Yvonne Ramirez inspected my vehicle and immediately confirmed the paint damages to the exterior of my vehicle is a known factory paint defect on 2015 Optima with white paint. Yvonne instructed me to contact Corporate KIA, report the case, receive a claim # then contact her to schedule an appointment for the repair. On June 3, 2025 KIA reopened case number [XXX] originally reported on June 11, 2024. No claim # issues, no repairs made. Safety Concern: The paint damage has affected both sides of the adhesive inside the glass securing the windshield. This is a nation wide problem. Owners have documented and continue to keep reporting this problem to KIA, NHTSA, AutoLine and BBB. Several class-action lawsuits have been filed against KIA in USA and Canada. This is also happening to Toyota, Honda & Subaru. It’s basically all the car manufacturers who are using this pearl white paint. The amount of Optima owners dealing with the massive rapidly spreading paint defect to their vehicle is over whelming. December 2023 my 2015 KIA Optima SXT Pearl White beautiful exterior paint began to bubble, peel, flake followed by large chunks of paint falling off even while driving. This started on the roof top right and left of the rear window. February 2024 - the same paint damages started on the right and left sails/pillars next to the front wind shield and is causing damage, bubbling and spreading through out the left and right side of the glass. It is a safety concern. March 2025 - the same paint damage started on the top right truck with huge chunks of paint falling off while driving.HELP INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INF

The contact owns a 2015 Kia Optima. The contact stated that while attempting to activate the defroster, the defroster failed to active to defrost the windshield. The contact stated that on a separate occasion, the heated steering wheel failed to operate as needed. The contact also stated that the front driver’s side and front passenger’s side heated seats were inoperable. There was no warning light illuminated. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 127,000.

The contact owned a 2015 Kia Optima SX Turbo. The contact stated while stopped at a traffic light, smoke was emitting from under the hood and entered the vehicle through the A/C vents. The contact pulled over to the side and immediately exited the vehicle. The contact opened the hood and flames were visible. No warning lights were illuminated, and the temperature gauge was normal. The contact did not sustain any injuries. The contact pulled over in front of Robertson's Tire, the employees used a fire extinguisher to extinguish the fire and called the Fire department. No police report was filed. The vehicle was towed to the contact's residence. The manufacturer was notified of the fire and advised the contact to tow the vehicle to a KIA dealer. The vehicle was then towed to the dealer who inspected the vehicle, but the contact did not remember the cause of the fire. However, the dealer stated KIA was at fault. The manufacturer advised the contact that a field inspector would be sent to inspect the vehicle. The field inspector has inspected the vehicle. However, the contact was awaiting the results. The contact notified her insurance company and was waiting on KIA's decision. The failure mileage was 160,000.

On May 11, 2024, we took our 2015 Kia Optima to Hutchinson Kia Service Center 3931 River Pl, Macon, Ga. due to brakes not working. When you apply brakes the vehicle would not stopped you would have to apply the emergency brakes for a complete stop. On that day, I was told no one was there to check my brakes due it was a Saturday and would need to schedule another appointment when they could do a brake diagnostic. The next appointment was June 4,2024, on that day we had the vehicle towed due to brakes. Today is September 2, 2024 and our vehicle is still there. On July 12, 2024, we were contacted staying vehicle was repaired and the problem wa a pin hole in the right brake line. We picked up the vehicle proceeded home at the first traffic stop same problem happen with the brakes.We returned immediately back to Kia Service center, explaining the same problem still exists. After vehicle being there for 2 more weeks, Nick with Kia Hutchinson Kia called stated there was a problem with ABS system and vehicle would be ready on August 21,2024. Well the still have my vehicle and no updates. When you call they put on hold and never comeback. If you go over the Service Manager is always out and no one can give you and update

Coming to a stop and breaks go to floor u will freak out this happens in 2 different times

TRYING TO AVOID ANOTHER VEHICLE APPROACHING ME IN A HEAD ON COLLISION, MY ENGINE BEGAN TO STALL, BRAKES LOCKED UP WHICH CAUSED SUSPENSION ISSUES OF THE VEHICLE. DUE TO THIS, THE VEHICLE WAS COMPLETELY TOTALED AND GLOBAL LENDING SERVICES IS CONSISTENTLY REPORTING IT AS A REPOSSESSION. BOTH VEHICLES WERE IN MOTION AND IT WAS ON A LA HWY.

TL* THE CONTACT LEASED A 2015 KIA OPTIMA EQUIPPED WITH HANKOOK OPTIMO H724 TIRES, SIZE: 225/45R/18 (NA). WHILE THE VEHICLE WAS PARKED, THE CONTACT BECAME AWARE OF A BUBBLE IN THE SIDEWALL OF THE FRONT PASSENGER AND REAR DRIVER SIDE TIRES. THE VEHICLE WAS TAKEN TO FIVE STAR TIRES ON MERIDIAN ROAD IN YOUNGSTOWN, OHIO TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THERE WAS NOTHING ABNORMAL WITH THE TIRES AND THAT THERE WAS NO SIGN OF ROAD DAMAGE. THE TIRES WERE NOT REPLACED. THE MANUFACTURER WAS NOTIFIED AND OFFERED NO ASSISTANCE. THE VEHICLE FAILURE MILEAGE WAS 22,000 AND THE TIRE FAILURE MILEAGE WAS 22,310.

TL* THE CONTACT OWNS A 2015 KIA OPTIMA EQUIPPED WITH HANKOOK TIRES, TIRE LINE: OPTIMO H431, AND TIRE SIZE: 225/45/R18V. THE CONTACT STATED THAT THE FRONT DRIVER'S SIDE TIRE EXHIBITED BUBBLES ON THE SIDE WALL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FRONT DRIVER'S TIRE WAS NOT REPLACED. THE TIRE WAS ORIGINAL EQUIPMENT. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS OF THE TIRE AND THE VEHICLE WAS 11,000. THE VIN WAS NOT AVAILABLE.

The contact owned a 2015 Kia Optima. The contact stated that while at a complete stop at the red traffic light, another vehicle, driving off a highway ramp at an undisclosed speed, crashed into the rear-end of the vehicle. An unknown red warning light was flashing. The air bags did not deploy. The seat belts failed to restrain the contact as needed, causing the contact to hit her forehead against the steering wheel, which propelled the contact's head back to the headrest, and then the contact hit her forehead against the steering wheel for a second time. The contact was able to exit the vehicle but felt dizzy and off balance. A police officer filed a report and informed the contact that the vehicle was safe to drive. The contact was able to drive the vehicle to the nearby hospital, where the contact received medical assistance. The vehicle was later driven to the residence, where it remained parked. The contact sustained a concussion, bruises on the forehead, neck, and lower back back pain, a worsening of the contact's generative bone disease condition. The contact might undergo a back surgery. The vehicle was towed to an independent mechanic two months later. Both the mechanic and the insurance company confirmed that the vehicle was totaled. The manufacturer was notified of the failure and informed the contact that the vehicle operated as designed during the incident. The contact was referred to the owner's manual. The failure mileage was approximately 62,000.

The issue concerns the rear center seatbelt used to secure infants and small children. The seat's "racketing" restraint did not disengage when the belt was unbuckled. My child became trapped and I had to cut the seat belt with scissors to get him out.

The contact owns a 2015 Kia Optima. The contact stated that while attempting to activate the defroster, the defroster failed to active to defrost the windshield. The contact stated that on a separate occasion, the heated steering wheel failed to operate as needed. The contact also stated that the front driver’s side and front passenger’s side heated seats were inoperable. There was no warning light illuminated. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 127,000.

The contact owns a 2015 Kia Optima. The contact stated while driving at an undisclosed speed, the vehicle lost motive power and stalled. There were no warning lights illuminated. The vehicle was towed to the residence and then to a local dealer where it was diagnosed with a wheel bearing failure. The vehicle was not repaired. The manufacturer was made aware of the failure; however, no assistance was provided. The failure mileage was approximately 120,000.

I NOTICED A BURNING SMELL AND THOUGHT THAT MY ENGINE WAS BURNING. I LOOKED DOWN TOWARD THE FLOOR AND NOTICED SMOKE COMING FROM UNDER THE DRIVER'S SEAT. ALTHOUGH THE SEAT WARMER IS NOT ON, I ALSO NOTICED THE SEAT SEEMS TO BE HEATING. I NOTICED WHILE SITTING AT A LIGHT AFTER HAVING DRIVEN ABOUT A MILE OR SO.