2015 Kia Optima
Problems, recalls and owner-reported issues
Engine is the leading concern among 1,008 owner complaints filed for this model year. This is the 2nd highest complaint count among 20 Optima model years with reports.
Of the 2015 reports, 31 involved a crash and 74 involved a fire. 23 people were injured and 1 person died.
What owners report most often
Recalls and investigations
Service brakes, hydraulic, antilock/traction control/electronic limited slip, control unit/modulePark outsideSep 25, 2023
Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.
An engine compartment fire while parked or driving can increase the risk of injury.
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC284.
Campaign 23V652000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, control unit/modulePark outsideMay 10, 2021
Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles previously recalled under recall 20V-519. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
An electrical short in the HECU increases the risk of a fire while parked or driving.
Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. Dealers will install a new multi-fuse, and inspect the HECU for leaks, replacing the HECU if necessary, free of charge. Owner notification letters were mailed on July 2, 2021. This recall supersedes previous NHTSA recall number 20V-519. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC212.
Campaign 21V331000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, control unit/modulePark outsideAug 27, 2020
Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
If the HECU short circuits, there is an increased risk of an engine compartment fire.
Kia will notify owners, and dealers will inspect the HECU for leaking brake fluid and replace the HECU if necessary, free of charge. Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. The recall began October 20, 2020. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC197.
Campaign 20V519000 on NHTSA.gov
Fuel system, gasoline, delivery, hoses, lines/piping, and fittingsDec 19, 2018
Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pipe that connects to the fuel pump outlet may have been damaged, misaligned or improperly torqued during the engine replacement procedure, possibly causing a fuel leak.
A fuel leak in the presence of an ignition source can increase the risk of a fire.
Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC172.
Campaign 18V907000 on NHTSA.gov
Representative owner complaints
1,008 reports, newest first.
Service brakes, Hydraulic, Electrical system, Engine, Sep 28, 2023
The contact owns a 2015 Kia Optima. The contact stated while driving after a stop, the vehicle stalled. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the residence. The vehicle was then towed to an independent mechanic, who informed the contact that an unstated hose had failed, causing the engine to seize. The contact called an unknown local dealer and was informed that the warranty on the vehicle was under another person's name. The vehicle was not diagnosed or repaired. The contact stated that the failure was related to NHTSA Campaign Number 21V331000 (Service Brakes, Hydraulic). The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 74,000.
Power train, Other or unspecified, Sep 27, 2023
My car is dragging/hesitant to pick up speed. While on the highway, it takes a while to reach minimal speed. No warning lights are on, but one mechanic advised code, under turbo boost. My steering wheel vibrates at speeds above 40 mph (unsure if it's related to turbo), but no one seems to be able to find the core of the problem for repair, Kia dealership included. I've been trying to seek repair for close to a year, without satisfaction.
Vehicle speed control, Engine, Fuel/propulsion system, Sep 20, 2023
Excessive shaking of engine, stalled out while driving on highway, knocking in the engine.
Engine, Sep 12, 2023
I had oil changed by Jiffy Lube for a very long time dedicated to getting it changed. Anyways, I was driving down the road and all of a sudden the motor started knocking I pulled over and had to have it towed because the knocking was getting louder and louder.
Other or unspecified, Sep 11, 2023
My sunroof basically spontaneously combusted while I was driving, sending tiny shards of glass flying. Thank goodness my sunshade was closed to catch all the glass shards and that no vehicles or bystanders were nearby to be hit by glass. The loud noise startled me but I was able to keep calm enough to drive the car to a safe location to inspect what had happened
Power train, Engine, Sep 8, 2023
My 2015 Kia Optima EX with 56,462 miles which I am the original owner. On 09/07/2024, my vehicle oil light came on and the vehicle was taken to Weston Kia in Gresham, OR. This vehicle has had regular oil changes every 3,000 miles since purchased performed at Weston Kia. The service department found a leaking oil pressure switch and preformed the repairs totaling $248.60 on 09/08/2023. Per Kia 10yr/100,000 Powertrain warranty for original owner "In the Engine: Cylinder block, cylinder head and all INTERNAL PARTS, timing gear, seals and gaskets, valve cover, flywheel, OIL PUMP, water pump and turbo charger, pg. 6." I believe this part is covered per Kia warranty and the definition of drivetrain "A powertrain is a system inside a vehicle, in a car, a powertrain consists of the engine or motor and its internal components, such as the energy storage system, transmission and driveshaft." After reviewing all Kia warranty information and speaking to customer service at 800-333-4542 (Who stated the repairs are not covered), there is no information to the contrary that a oil leaking pressure switch that is located within the engine block is not covered. Kia would not provide any detailed information that shows this part falls outside of the terms of my 10yr/100,000 mile warranty.
Power train, Service brakes, Engine, Sep 8, 2023
The contact owns a 2015 Kia Optima. The contact stated while driving at an undisclosed speed, the brakes and the steering column were inoperable. The contact stated that several unknown warning lights were illuminated. The contact was able to safely pull off to the shoulder of the roadway. The contact stated that the engine started smoking. The vehicle was towed to an independent mechanic. The vehicle was not repaired. The contact stated that in December 2020 and March 2023, recall repairs were completed on the ABS and TCU modules. The manufacturer was made aware of the failure, and a case was filed. The approximate failure mileage was 94,700.
Power train, Engine, Fuel/propulsion system, Sep 7, 2023, crash
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
Other or unspecified, Sep 6, 2023
I have a 2015 Snow White Pearl Kia Optima. My car have several spots where the paint has started to boil and peel off the car. The peeling has spread to all over the car and I can see new spots that start off looking like a cigarette burn, you can also see where the paints bubbles up.
Other or unspecified, Sep 4, 2023
The paint is chipping off in large pieces. We hand wash this vehicle and the paint will just chip right off.
Engine, Aug 31, 2023
The contact owns a 2015 Kia Optima. The contact stated that the vehicle was experiencing an abnormal oil consumption. The contact stated that she had been adding engine oil to the vehicle every 400 miles. The vehicle was taken to the dealer however, the failure could not be duplicated. The contact was informed that the vehicle had to experience catastrophic engine failure to be repaired. The vehicle was not repaired. The manufacturer was made aware of the failure, but no assistance was provided. The failure mileage was approximately 110,000.
Structure, Aug 31, 2023
The concern is more of a cosmetic issue than mechanical. The paint or primer has a defect which is causing my vehicle to peel from the paint throughout the panels. Kia did decline the roof pillar when it first started but then the hood & left rear door is peeling. I paid out of pocket to have it repaired but other panels started to peel which it will not stop.
Electrical system, Engine, Fuel/propulsion system, Aug 30, 2023, fire
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.
Engine, Aug 28, 2023
I’ve had my 2015 Kia optima since 7/11/23. My dipstick showed oil full. I drove it 977 miles from 7/11/23 until August 23 2023. My oil went from full mark on dip stick to low. My vehicle I purchased had 66,892. I should think it shouldn’t be losing a quart oil in a little over a month. I had to add a quart of oil. This is unacceptable.
Engine, Aug 25, 2023
The contact owns a 2015 Kia Optima. The contact stated while driving into a parking lot at an undisclosed speed, the vehicle stalled. The contact restarted and parked the vehicle. The contact drove the vehicle to the residence the following day. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The local dealer was made aware of the failure. The manufacturer was notified of the failure. The failure mileage was approximately 116,000.
Steering, Aug 23, 2023
The contact owns a 2015 Kia Optima. The contact stated that the steering column was previously replaced due to power steering failure. Additionally, the contact stated that while driving 70 MPH, the vehicle lost power steering functionality inadvertently, and veered to the right lane unintendedly. The anti-skid and the power steering warning light was illuminated. The contact pulled to the side of the roadway. The contact stated that he turned off and restarted the vehicle; however, the failure persisted. The contact stated that he was able to continue driving using physical strength to steer the vehicle. The vehicle was taken to the dealer, who informed the contact that the earliest availability for diagnostic testing was September 8, 2023. The manufacturer was notified of the failure and informed the contact that they could not assist because the VIN was not included in a recall. The failure mileage was approximately 80,000.
Engine, Aug 21, 2023
I recently got a 2015 Kia Optima LX, I loved the vehicle and decided to buy it. I had no issues until I decided to drive it, and after 30 minutes of driving, I faintly hear a sound coming from the engine, as if it's hitting some metal. Shortly after, a warning light on the dashboard turns on. I reach home and decide to scan it with a small OBD scanner I have, and to my surprise, it's showing error code P1326. The vehicle is running very poorly, making a sound like metal rubbing against metal, and it has no power at all. I'm stuck on the road with the vehicle like this. It has 104,600 miles on it.
Engine, Aug 19, 2023
Car was driven to work and died on side of road a few weeks ago. Would not take a jump. Had funny smell when hood was up. Had to tow it home. 2015 (bought in 2016 from Kia Dealershop with 130 miles. We were the only owner. I think it was used for test drives? Dealership said engine seized ( only 35,000 miles). Haven't heard from them yet. No rental car! What can we do. Under Powertrain warranty. Thanks [XXX] and [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine, Aug 17, 2023
The contact owns a 2015 Kia Optima. The contact stated while driving at low speeds, there was an abnormal knocking sound coming from the vehicle. There were no warning lights illuminated. The vehicle was towed to an independent mechanic, who referred the contact to the dealer for assistance. The vehicle was towed to the local dealer, where it was determined that the engine had seized. The vehicle was not repaired. The manufacturer was contacted, and the contact was informed that the warranty had expired, and there was no recall for the failure on the VIN. The failure mileage was approximately 110,928.
Electrical system, Service brakes, Aug 14, 2023
Warning message appeared on the dashboard regarding HECU malfunction. Kia was contacted and stated the car is not covered under a recall.
Engine, Aug 9, 2023
2015 Kia Optima engine seized on the highway at 70mph without any warning. Engine light illuminated and lost all power. This was a replacement engine with approximately 75,000 miles. Original engine was replaced at 125k due to excessive oil consumption (burned 1 quart in 800 miles). Vehicle has been at the dealership since the end of June awaiting engine replacement (again).
Engine, Aug 6, 2023
engine oil leaks that may cause the vehicle to stall.
Other or unspecified, Aug 4, 2023
Pearl white paint is peeling and chipping. I have photos, paint Samples and Receipts from having to repair to prevent rust.
Engine, Aug 1, 2023
Engine pinging Hesitates when pulling out at times
Engine, Jul 25, 2023
The contact’s husband owns a 2015 Kia Optima. The contact stated that while her husband was driving at undisclosed speeds, he heard a knocking sound coming from the hood of the vehicle before the vehicle stalled. The check engine warning light illuminated. The contact's husband was able to coast the vehicle to a stop. The contact then stated that after her husband allowed the engine to cool, he was able to restart the vehicle. The contact then stated that the following day, her husband attempted to start the vehicle, but the vehicle failed to start. The contact’s husband then notified AAA to tow the vehicle. The vehicle was inspected, and the contact was informed that the starter might have caused the failure. The contact stated that her husband replaced the starter however, the failure recurred. The contact then notified a friend who is an independent mechanic, and it was determined that the failure was engine related; however, the vehicle was not repaired. The dealer was notified of the failure and the contact was informed that the VIN was not included in a recall. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unavailable.