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)

89 of 1,000 complaints match · Brakes · clear filters · page 3 of 4

Apr 25, 2023Electrical systemBrakesEngineFire

The vehicle caught fire

NHTSA ODI 11518984

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

Mar 2, 2023BrakesEngine

The contact owns a 2015 Kia Optima. The contact stated that while the vehicle was idling at a traffic light, the vehicle lost motive power and stalled. The contact was able to restart the vehicle and move to the side of the road where the vehicle stalled again. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the engine had failed and needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and informed the contact that NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic) had not been completed and the warranty coverage for the engine replacement would not be honored. The approximate failure mileage was 90,000.

NHTSA ODI 11509875

Feb 10, 2023BrakesEngine

The contact owns a 2015 Kia Optima. The contact stated that while driving at various speeds, a ticking noise was heard coming from the engine. No warning lights were illuminated. The contact also stated that while driving at an undisclosed speed, the vehicle lost motive power and was unable to restart. The vehicle was taken to a local dealer; however, the failure could not be duplicated. The vehicle was not repaired and was towed back to the residence. The contact stated that the failure recurred and that the "Service Engine Soon" warning light was illuminated. The contact received notification of NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic). The vehicle was then taken back to the dealer for the recall repair and was diagnosed that the engine needed to be replaced. The vehicle remained at the dealer awaiting the repairs. The manufacturer was made aware of the failure and informed the contact that the warranty had expired. The failure mileage was 106,744.

NHTSA ODI 11506659

Feb 6, 2023Brakes

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle overheated. Additionally, the check engine, ABS, and TPMS warning lights were illuminated. The contact related the failure to NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulics). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was 144,771.

NHTSA ODI 11505902

Oct 19, 2022Electrical systemBrakesEngine

As I was driving on the Interstate, my car lost power and I was unable to push on my gas or use my brakes to slow down to pull off the interstate. Lights begin flashing with a warning that read “ Check Hybrid system. Stop vehicle and turn off engine. This is the second time this has happened but before my car shut off and didn’t turn back on. I was going to be hit by a semi truck had he not swerved around. Also, this the 5th time this week it has happened.

NHTSA ODI 11489898

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

Aug 16, 2022Transmission & drivetrainElectrical systemBrakes

For one my car is very sluggish when taking off and shifting gears Jerks badly. MY electrical is messing up on my radio and camera. Sometimes I smell rubber burning. When I have my cruise on it will speed up on its on and jerk when it does and when i press my brakesbto slow down it doesn'twant to slow down unless iash really hard. When taking off from a hill or a dead stop it doesn't want to shift and slags and rattles when it shifts. Bluetooth works sometimes and sometimes it doest it depends on when my backup camera works or not. I bought this car used in June of 2021 with a little over 92000 miles. I know when something doesn't sound right and when something is messed up, there is something wrong with my car. So far I haven't been in an accident but I don't want to be either.

NHTSA ODI 11479674

Jul 31, 2022BrakesEngineFuel system

Recently has a new engine installed at pitre Kia , due to a recall malfunction, they installed a new engine but didn’t fix the recall problem, now that I have my car back. My engine moves when I hit the brakes, my brakes go all the way down sometimes, doesn’t stop the car at all, I am in danger everyday I drive my car, I never know if my brakes will fail on me. Or my car will burst out into flames, and I can smell fuel in the cabin of the car really strong, I have really bad gas mileage and my steering wheel is a lot stiffer than normal

NHTSA ODI 11476734

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

May 10, 2022BrakesEngineDriver assistance

DEAN MCKRARY KIA HAD MY CAR FROM NOVEMBER TO DECEMBER 12, 2021 WITH THE AGREEMENT TO REPAIR ALL EXISTING SERVICE RECALLS. THERE YET REMAIN SERVICE RECALL 21V331. THE AGREEMENT WITH THE SERVICE MANAGER THAT ALL RECALLS ISSUED WOULD BE REPAIRED. THEY DID NOT KEEP THEIR WORD.

NHTSA ODI 11464068

Apr 1, 2022Brakes

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 the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI 11459214

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

Mar 1, 2022Electrical systemLightsBrakes

I have my driver side tail light out, when I bought the car in 2019, they said I have 30 days to bring in my car so they can replace what needs fixing, well I hit day 32 and I’ve had to replace my tires, brakes, headlights and tail lights because they all went out on my own dime, now my brakes are making me nervous because sometimes it feels like my car isn’t slowing down to a stop and I have to slam them to stop sometimes.

NHTSA ODI 11454654

Feb 19, 2022Electrical systemBrakesEngineFire

Vehicle lots brakes while driving, smell of gas and caught fire under hood. Engine had been completely replaced due to recall in January 2022 Vehicle was a complete loss, luckily son was able to get out.

NHTSA ODI 11453004

Jan 3, 2022BrakesEngine

The contact owns a 2015 Kia Optima. The contact stated while driving at an unknown speed, the vehicle's speed decreased as the RPM's increased with the engine and battery warning lights illuminated. The vehicle lost all power and was pushed to the side of the road as it failed to restart. The vehicle was towed to the contact's residence. The vehicle was then towed to an independent mechanic who diagnosed the failure as a starter which was replaced. The vehicle failed to start, and the failure was then diagnosed as a seized engine. The engine needed to be replaced. The vehicle was towed to a dealer who confirmed the engine failure. The contact stated that the dealer informed him that the manufacturer did not approve the repairs for NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic) as the previous recalls were not completed. The contact stated that he found out about the recall from an Auto Zone employee. The manufacturer was not notified of the failure. The approximate failure mileage was 96,000.

NHTSA ODI 11445968

Sep 15, 2021BrakesEngineFire

The contact owns a 2015 Kia Optima. The contact stated while driving at 15-20 MPH, the vehicle inadvertently stalled and she saw smoke coming out from underneath of the hood of the vehicle. There were no warning lights illuminated. The contact stated she was able to exit the vehicle. The vehicle was towed to the contact's residence, then it was towed to the dealer who diagnosed that the engine had ceased. The dealer informed the contact that she would be responsible for the cost of the repair. The vehicle was towed to a second dealer (Kia of Riverdale 1 Windbeam Rd, Riverdale, NJ 07457). The manufacturer was notified of the failure and did not provide any assistance due to the fact that the previous owner of the vehicle had not completed the software update of the vehicle. The contact stated the failure was related to NHTSA Campaign Number: 21V331000 (SERVICE BRAKES, HYDRAULIC). The vehicle was not repaired. The approximate failure mileage was 76,000.

NHTSA ODI 11433105

Aug 18, 2021BrakesElectrical systemEngine

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 available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving 60 MPH, the vehicle stalled without warning. The contact was able to coast the vehicle off to the shoulder of the roadway. The contact mentioned that the battery was drained from the engine not turning off. The vehicle was towed to the dealer but not diagnosed nor repaired. The vehicle was undrivable. The manufacturer was notified of the failure. The failure mileage was approximately 56,000. Parts distribution disconnect.

NHTSA ODI 11429647

Jul 8, 2021BrakesFire

The contact owned a 2015 Kia Optima. The contact stated that while stationary with the engine on, the check engine warning light illuminated. After pulling into a parking lot, the vehicle stalled and was unable to be restarted. With the assistance of a nearby police officer, the contact placed the vehicle into neutral and backed into a parking spot. While waiting for her boyfriend to arrive at the scene, she noticed that dark grayish smoke was coming from the engine. The contact and her daughter immediately exited the vehicle as another police officer showed up at the scene. The officer attempted to extinguish the fire with an extinguisher but failed to do so. The fire department arrived at the scene and was able to extinguish the fire. The contact was uncertain if a fire or police report was filed. No injuries were reported. The vehicle was towed to a tow yard where it remained. Neither the dealer nor the manufacturer was notified of the failure. Upon speaking with her insurance adjuster, the contact was informed that the vehicle was included in NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic) however, the contact never received the notification letter about the recall. The vehicle was destroyed. The failure mileage was approximately 119,000.

NHTSA ODI 11423982

Jun 7, 2021Electrical systemBrakesEngine

I’ve completed the recall on Saturday it took them less then a few minutes even though the invoice said 0.00hrs. I showed that I had brake fluid leaking and the car smokes but was told to come back if things got worse. Saturday night I was driving to the house with my fiancée and the car started slowly if down, the check engine light came on. Then the car shut off in the middle of the highway after a while it just cut back on and smoke all the way to the house. If there was someone behind me I would have cause a accident but it not within my control. My car has randomly shut off while driving and a while later coming idling again, today making the 5th time with in 3days

NHTSA ODI 11419991

Apr 27, 2021Electrical systemLightsBrakes

EVERY TIME I TURN MY HEADLIGHTS ON MY BREAK LIGHTS STAY ON AND THE TRACTION LIGHT COMES ON. PEOPLE THINK I AM RIDING MY BRAKES.

NHTSA ODI 11414139

Dec 21, 2020BrakesEngine

TL* THE CONTACT OWNS A 2015 KIA OPTIMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V519000 (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 WHILE DRIVING 75 MPH, THE VEHICLE LOSS MOTIVE POWER AND STALLED WITHOUT WARNING. THE CONTACT PULLED OFF THE ROADWAY AND ATTEMPTED TO RESTART THE VEHICLE HOWEVER, THE VEHICLE FAILED TO START. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE THEN WAS TOWED TO VICTORY KIA (5101 N. NAVARRO ST, VICTORIA, TX 77904, (361) 333-4542) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE PARTS DISTRIBUTION DISCONNECT. THE FAILURE MILEAGE WAS APPROXIMATELY 70,000.

NHTSA ODI 11384390

Nov 9, 2020Transmission & drivetrainBrakesEngine

ENGINE SEIZED WHILE DRIVING AND WOULDNT START.I BOUGHT A NEW BATTERY AND TRIED TO START IT AND IT ALMOST CAUGHT ON FIRE.I HAD IT TOWED TO A KIA DEALER AND THEY REPLACED THE ENGINE AND THE TURBO SYSTEM WHICH HAD A RECALL ON IT IN 2016THAT WAS FOR THE KNOCK SENSORSYSTEM ON 2018/

NHTSA ODI 11373757

Nov 5, 2020SuspensionBrakesEngineCrash2 injuries

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.

NHTSA ODI 11373237

Nov 3, 2020Brakes

WHEN I REVERSE MY CAR OUT OF MY PARKING SPOT IT STOPS LIKE MY BRAKES LOCKS. I HAVE TO PRESS THE GAS A LITTLE FOR IT TO GO. ALSO MY BRAKES OR WHEEL IS MAKING A GRINDING NOISE ON THE PASSENGER SIDE BUT MY BRAKES LOOKS GOOD

NHTSA ODI 11372820

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Working with the data? Download all 1,000 complaints as CSV · fetched from NHTSA July 19, 2026

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 →