Home · 2015 Kia Optima · Complaints

What 1,000 owners told NHTSA about the 2015 Kia Optima

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (1,000)Crash / fire / injury (103)Engine (617)Electrical system (134)Brakes (89)Body & structure (76)Steering (68)Fuel system (54)Transmission & drivetrain (49)Speed control (35)Engine & cooling (29)Airbags (26)

103 of 1,000 complaints match · crash/fire/injury only · clear filters · page 2 of 5

Feb 5, 2024Electrical systemFire

The contact owns a 2015 Kia Optima. The contact stated that while driving approximately 75 MPH, the vehicle lost power and the check engine light was illuminated. The vehicle was parked at the residence. The vehicle was taken to an independent mechanic where it was diagnosed that a handheld diagnostic machine provided code: P1326 where the knock sensor needed to be replaced. On another occasion, while driving at 20 MPH, the vehicle stalled. The contact attempted to start the vehicle again but observed smoke and flames emanating from the engine compartment and exited the vehicle. The fire department extinguished the fire. A police report was filed. The vehicle was towed to a dealer where it was diagnosed that the knock sensor needed to be replaced. The manufacturer was notified of the failure. The failure mileage was 152,451.

NHTSA ODI 11570004

Feb 2, 2024BrakesFire1 injury

The contact owns a 2015 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 manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while the vehicle was parked, the contact noticed the vehicle was smoking and on fire. The contact stated the vehicle was equipped with tinted windows, and when he opened the driver's front door, the contact noticed smoke and fire in the interior of the vehicle. The contact called the fire department. The fire department extinguished the fire. A fire report was filed. The contact was treated for smoke inhalation. The vehicle was towed to the dealer. The contact was informed by the dealer that there were no recalls for the vehicle. The contact stated that the dealer inspected the vehicle but did not provide the contact with a report. The vehicle was not repaired. The manufacturer was made aware of the failure and a claim was filed. The failure mileage was approximately 60,000.

NHTSA ODI 11569464

Jan 24, 2024Electrical systemAirbagsBody & structureCrash

I OWNED MY 2015 OPTIMA SLX SINCE THEY HAVE IT REPLACED MY ENGINE IN KEARNY MESA DEALERSHIP I PAID OUT OF POCKET FROM REPAIRS LABORS THERE IS A DEFECTS ON DOOR PANELS AIRBAGS ELECTRICL WIRING HARNESS NEVER RECEIVED ANY CLAIM COMPENSATION SETTLEMENT FROM THOSE CLAIM ACCIDENTS THAT IAM NOT AT FAULT FOR IT IS UNLAWFUL UNCONSTITUTIONAL UNFAIR I DESERVE A RESTORATION OF MY PERSONAL VEHICLE I OWNED IT I LIVED IN IT.

NHTSA ODI 11567675

Dec 13, 2023BrakesFire1 injury

The contact owed a 2015 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 manufacturer had exceeded a reasonable time for the recall repair. The contact stated that while the vehicle was parked in the driveway, the contact started the vehicle to warm it up and went back into the house while the vehicle warmed up. The contact stated that when she returned from the house to enter the vehicle, the vehicle had independently turned off. The contact stated she restarted the vehicle, however the contact noticed smoke exiting from under the vehicle hood. The contact stated the vehicle was turned off and a family member attempted to raise the engine hood when he noticed the hood was too hot to touch. The contact stated smoke and fire exited from under the engine hood. The contact called the fire department. The local fire department arrived on the scene and extinguished the fire. A fire report was filed. The contact stated that her younger brother suffered a panic attack. The contact stated that the burned vehicle remained in the residential driveway. The dealer was unaware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 69,000. The VIN was unavailable.

NHTSA ODI 11559917

Nov 16, 2023EngineCrash

While driving on Hwy 19 the vehicle shut down. The motor turned off and I was able to slowly roll to the side of the road. The car did not start again.

NHTSA ODI 11555425

Oct 28, 2023Electrical systemEngineFuel systemFire

Engine lost power and when restart was attempted, it could torn turn over. Tried restarting 3 times with no success. After this, smoke started coming from the hood. I opened the hood and noticed a small flame at the driver side bottom of the engine compartment. Flame intensified and grew and eventually I extinguished with a fire extinguisher. I had just replaced the starter that same week and replaced some wiring at a local car repair facility.

NHTSA ODI 11552409

Oct 19, 2023AirbagsCrash1 injury

The contact owned a 2015 Kia Optima. The contact stated that while driving at approximately 58 MPH, another vehicle crashed into the rear center passenger side of the vehicle. As a result, the vehicle rolled. The air bags failed to deploy. The contact sustained injury to the lower back, head, and neck that required medical attention. A police report was filed. The vehicle was not diagnosed or repaired. The vehicle was towed to a tow lot and deemed a total loss by the insurance company. Neither the dealer nor the manufacturer were notified of the failure. The failure mileage was approximately 90,000.

NHTSA ODI 11550856

Oct 17, 2023BrakesEngineFire

My car started smoking while parked at work for no reason and I had to call the fire department. It stop smoking by the time the fire department came. I had it towed to the Dealer. My brakes are a mess but especially on a wet road you have to pump them to try to stop. I have taken it to the Dealer and of course they find nothing wrong. I told them to test drive it on a wet raining day and try to stop hard. Supposedly they could not but I have almost been it several accidents and had to run through a red light because I could not stop. So, I try to drive this car on a rainy day or drive slowly. This car has been trouble since I got it and the dealer will not listen.

NHTSA ODI 11550399

Sep 7, 2023Transmission & drivetrainEngineFuel systemCrash

I HAVE 2015 KIA OPTIMA GREY OR PLATINUM GRAPHITE EXTERIOR COLOR SINCE AUG 2019 I HAD AN TBONE ACCIDENT LAST DEC 26 2021 WHICH IAM NOT AT FAULT FOR NEVER RECEIVED ANY TYPE OF COMFORT CARE CLAIM IT WAS DURING COVID PANDEMIC I WAS IN THE PROCESS OF GRIEVIANCE BEING HATE LEFT IN DESPAIR ALSO JOB LOSS WITH NO INCOME UNSTABLE LIVING SITUATION WHICH I WAS LIVING ON MY PERSONAL VEHICLE BEEN GOING THROUGH FINANCIAL HARDSHIP UNTIL PRESENT I HAVENT BEEN DRIVEN UNTIL I BROUGHT TO KIA DEALERSHIP JAN 1ST OF 2023 DUE TO MY PERSONAL INJURY AND CAR ACCIDENT IT WAS LEFT PARKED GOT TOWED WITH BUSTED WINDOWS HAD MY PERSONAL BELONGINGS BEING GONE MISSING.... I HAVE ROUGH YEARS... IT WAS DIFFICULT FOR ME TO GET BACK UP IN MY FEET MY CAR HAS RECALLS ARENT BEING REPAIRED FAIRLY. THIS WILL BE MY FIRST TIME TO ADHERE MY CONCERNS I WOULD LIKE TO GET SOME ASSISTANCE IF POSSIBLE...I THANK YOU IN ADVANCE

NHTSA ODI 11543067

Aug 30, 2023Electrical systemEngineFuel systemFire

I WAS DRIVING NORTH ON THE 57 FREEWAY AND MY CAR STOP RUNNING AND I PULLED ON THE SIDE OF THE FREEWAY AND MY CAR CATCH ON FIRE. EVERYTHING STARTED IN THE ENGINE. I CALLED KIA AND MADE A COMPLAINT AND THEY TOLD ME IT WAS NOT UNDER WARRANTY AND THEY COULD NOT HELP ME.

NHTSA ODI 11541660

Jun 13, 2023Engine & coolingFire

The contact owns a 2015 Kia Optima. The contact's daughter was driving at approximately 60 MPH when numerous lights on the dashboard illuminated. The contact stated that her daughter said that the vehicle stalled, however, she was in the right-hand lane and pulled over. The daughter said that smoke was being emitted from the engine compartment. The contact stated her daughter was picked up by family and the vehicle was left at the side of the highway. The contact stated that the daughter's companion retrieved the vehicle. The contact stated that he opened the hood and checked the oil and observed that there was no oil showing on the dipstick. The contact filled the vehicle's oil reservoir and started the vehicle. The contact said that he also reported that all panel warnings illuminated and the vehicle had begun to emit smoke. The contact stated he pulled off the roadway, opened the hood, and observed smoke and flames being emitted from under the engine block. The contact stated he had immediately closed the hood and moved away from the vehicle. The contact stated that he reported that the vehicle continued to emit smoke but no more flames were observed. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine had seized and needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 184,000.

NHTSA ODI 11526832

May 8, 2023Electrical systemFire

The vehicle had electrical fire. While driving smoke and electric fire smell started to fill the cabin. Pull off the road and exited the vehicle. All vehicle caution indicators were lit up on the dashboard, engine, battery, temp, etc indicators. Shut off car called roadside assistance. Car smelled or charred electric components. Had it towed to the manufacturer dealership. Waiting on response from KIA to determine cause of electrical fire.

NHTSA ODI 11520888

Apr 25, 2023Electrical systemBrakesEngineFire

The vehicle caught fire

NHTSA ODI 11518984

Mar 24, 2023EngineFire

The contact owns a 2015 Kia Optima. The contact was made aware of NHTSA Campaign Number:  21V331000 (Service Brakes, Hydraulic) on Facebook. The contact called the local dealer and made an appointment for March 25, 2023. The contact stated on March 23, 2023, while driving 50 mph, depressing the accelerator pedal but the vehicle began to decelerate. The contact stated the battery warning light was illuminated. The contact was able to park on the side of the road and when exiting the vehicle she saw smoke but no fire/flames exiting the hood. The vehicle was not drivable. The contact towed the vehicle to her residence. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 180,000.

NHTSA ODI 11513556

Mar 24, 2023BrakesFire

The contact owns a 2015 Kia Optima. The contact stated upon starting and exiting the vehicle, he noticed that there was smoke coming out from underneath the hood. There was no warning light illuminated. The contact opened the hood and saw flames. The contact closed the hood and immediately went into his residence to grab fire extinguishers. Upon returning to the vehicle, the contact was unable to reopen the hood. The contact called the fire department, who extinguished the fire. A fire department report was filed. There was no injury sustained. There was no police report filed. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The vehicle remained at the contact’s residence. The contact became aware that the VIN was included in NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic), which he related to the failure. The failure mileage was unknown.

NHTSA ODI 11513575

Jan 13, 2023AirbagsEngineFuel systemCrash2 injuries

I purchased a kia turbo optima from bob's lamphere's beaverton oregon kia dealership 9 days later I felt the acceleration awkwardly bi wanted to return it or exchange but was told no contract was only within 5 days. I took it to kia dealership for diagnostic 3 times I had it for 9 months the last 6 weeks was the 3rd time until Feb 28th It was totaled by a uninsured motorist memes william benton penny lll Or. Driver lic# 1289466 Of 1633 n.e. 76th portland oregon 97213 he was speeding illegally bypassing on a bridge into on coming traffic which was me he ending totally the back end of my kia. No air bags deployed I had no airbag warning light on I suffer injuries whiplash in my neck shoulder and back to this day Wild willy seemed to have injured his leg to the point of amputation ... Portland police report# 21-54465 which is the report that wild willy gave a false identity. Later the officer text giving his real identity. To this day I haven't been compensated for bodily or auto damageby wild willy or Geico my insurance. And lost my kia in a junk yard with a remaining of a bill of 12,000 of 25,500.

NHTSA ODI 11501694

Oct 18, 2022EngineFire

May 28,2022 car stalled no warning, car towed to service center found out engine trouble, claim denied by warranty because it was related to a Kia recall,Knock Sensor Detection System, car was towed to Kia Dealership on June 7,2022, where it was confirmed that engine seized do to the recall, had engine replaced and car returned July 9,2022, on July 10,2922 returned car to dealership for engine knocking noise, car repaired tensioner pulley and alternator m, picked car up July15,2022. On August 7,2022 car stalled while driving and smoke coming out of hood, engine was on fire and engulfed entire vehicle.

NHTSA ODI 11489706

Oct 9, 2022EngineFire

My car started smoking while I was driving! From under hood and into vents in car bad! Got pulled over and some yelled my car was on fire, get out! There were no lights on for car! I had ran one of those diagnostic checks that morning ( have it set for once a month) Nothing came back on it at all, car seemed to be great! Left house and 15 mins later car caught fire in the engine! I could of died and my dog! Fire looks to have burned through the fire wall!

NHTSA ODI 11488540

Sep 19, 2022EngineFire1 injury

The contact owns a 2015 Kia Optima. The contact stated while driving at 35 MPH, smoke was coming inside the vehicle. The contact had to stop the vehicle and turn off the vehicle, when the contact restarted the vehicle, he saw flames coming from the windshield wipers. While opening the hood of the vehicle to see where the flames were coming from, the contact burned his hands. Medical attention was not required. The vehicle burst into flames. The fire department was able to extinguish the fire. The vehicle was towed to a repair facility. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 95,000. The VIN was not available.

NHTSA ODI 11485326

Aug 26, 2022EngineFire

On January 12, 2022 I was informed by Danbury KIA (Danbury, CT) that my 2015 KIA Optima required a recall engine replacement. I left the vehicle with the dealer and the repair was completed on Jan 31, 2022. I picked up the car on February 1, 2022 and on February 3, 2022 the car was destroyed by an engine fire. My insurance company deemed the car a total loss and compensated me for the market value of the car. At the time the car was completely paid off and I was still in excellent condition. I had no reason to trade for a newer model - especially with the new engine. After the insurance payoff I still needed to finance $25000 for the purchase of a comparable replacement vehicle. To date neither the dealer nor the KIA corporation have contacted me or made any attempt to address my loss.

NHTSA ODI 11481424

Aug 17, 2022Electrical systemBrakesFire

Brake Failure, Having to pump brakes in order to stop vehicle, driver rear tail light burning, causing short in wiring

NHTSA ODI 11479707

May 11, 2022BrakesEngineCrash

I was in a accident in December where I went to brake at a light and hydra planed forward. Into the car I front of me. Which my driving record I can’t understand how the is happened is this a reflection of the recall and Kia’s parts took since just a few weeks ago to come in to the collision center from being back ordered since mid December I have been in a out of pocket rental practically begging to get my 4000$ I paid to enterprise since So because of this lengthy time my inspection was up in march but I can’t get it inspected because the check engine light came in the very first day I brought it home. Went to turn on my ac being a warm day and no cool air I called the collision center they then decide to tell me they are waiting on three parts still the ac compressor a part for the bumper and the turbo sensor. Meanwhile since it is a insurance claim I cannot have them check the recall part. So I made a appointment with Fred beans Kia in langhorne pa for the recall and a oil change they had the car all day to tell me that I need the part and it will be ordered that was April 23. Meanwhile Iam still driving with expired inspection. I then noticed my car started to shake and make loud sound when started and is feeling like Iam going to stall out and it does. It feel safe me being a single woman I don’t want to get stuck I called bot the the collision center and the dealership inquiring about the parts ordered and now my car is running horribly one pointed the finger at the other leaving me worried scared frustrated and upset. Please help me.

NHTSA ODI 11464149

Apr 7, 2022Engine & coolingCrash

Driving on highway 54 all of a sudden vehicle seized up on me at 75 mph in the dead of night, steering was difficult to control and hit an object while trying to stop off the highway IN A BLIND CURVE! Was stranded for 6 hours until local shop towed vehicle and replaced condenser-radiator-fan ( object was debris on side of highway) could not get car going and a smell of electrical short coming from under hood. Have not been able to fix problem and have spent 11 days in Carrizozo NM trying with bewildered mechanics to get me back on the road. They replaced starter -fan-radiator-condenser-changed fluids (motor & transmission) to find out motor unable to reset. I’ve spent over 6,000.00 dollars in motel-tows-parts -labor -due to this vehicle. I found out of recall when I was told to buy an engine. This car almost took my life due to sudden engine failure on the highway in the AM hours.

NHTSA ODI 11459953

Mar 7, 2022SteeringElectrical systemLane DepartureCrash1 injury

Kia said they fixed recall on my car and lights are still on and I hydroplane and totaled my car

NHTSA ODI 11455460

Mar 3, 2022BrakesElectrical systemCrash

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 not yet available. The contact stated that while driving at an undisclosed speed, the brakes failed to stop the vehicle immediately, causing the vehicle to crash into a curve that fractured the lower control arm and damaged the tire rims, fender, and bumper. Additionally, the vehicle later failed to start. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was taken to an independent mechanic and diagnosed that either the alternator or battery was faulty. The mechanic replaced the lower control arm. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 129,403. Parts distribution disconnect.

NHTSA ODI 11454999

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How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 Kia Optima verdict →