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: electrical system
135 reports, newest first. Show all
Electrical system, Engine, Jul 14, 2022
Just bought the car. Drove it off lot & engine quit on me. Wont go over 25 mph. They won’t refund my money. So I’m on phone with Kia consumer affairs. If they don’t get it fixed/replaced/or buy the car back then I am contacting the lawyers who have the lawsuits against Kia & add my case to their lawsuit. This is ridiculous how many people on here that I see Kia is denying them for replacement of motor due to their company!! They need to get it together or just quit making cars! They suck! I bought it in good faith hoping it was a reliable car. Now I’m $9k out of pocket.
Electrical system, Other or unspecified, Engine, Jul 6, 2022
not really sure my car just started making a clicking noise out of no where & powered off & now it wont detect key or wont start up
Electrical system, Exterior lighting, Fuel/propulsion system, Jun 10, 2022
Malfunctions: hazard lights severe malfunction. All Steering wheel control buttons stopped working. Center control buttons stopped working. USB charging port/Auxiliary media port/ right side auxiliary power port lost power. Battery alternator and starter had acceptable readings via multimeter. Suspect ECM failure? Symptoms similar to misfires when A/C is running. Parking break doesn’t always engage despite proper method. Inconsistent gas consumption drastic fluctuations
Power train, Electrical system, Engine, Jun 2, 2022
In 2020 a message saying “check hybrid system, stop vehicle and turn off engine appeared and the car stopped while I was driving. I brought it to the Kia Dealership and they “fixed the problem”. On Tuesday May 31st I was driving home on the expressway and my car stopped. I luckily was able to pull off to the side and then the same message popped up and the car would not drive anymore. I have had 5 recalls with this car and it is only 7 years old.
Power train, Electrical system, Engine, Apr 28, 2022
Engine/motor failed which disabled the car on highway. Traveling on 3/4 lane highway with heavy traffic. Safety was risked due to almost being hit from behind and cars swerving out the way. Problem was assessed and thought to be repaired but occurred again causing more possible damage to engine. Warning lamp illuminated seconds before the car shut off which was not enough time to pull over safely. Car had to be towed off highway.
Electrical system, Mar 16, 2022
My 2015 Kia was one of many Kias stolen from the Milwaukee, WI area. It was stolen from a secure residential parking garage by thieves who know they simply have to break a window to gain entrance to the car, break open the ignition lock, start the car with a USB port, and drive away. The police helped me recover the car and it is currently sitting idle at the shop for the past month waiting for a new ignition lock which is on backorder nationwide because of the high demand.
Steering, Electrical system, Lane departure, Mar 7, 2022, crash
Kia said they fixed recall on my car and lights are still on and I hydroplane and totaled my car
Service brakes, Hydraulic, Electrical system, Mar 3, 2022, crash
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.
Electrical system, Mar 2, 2022
I was driving my 2015 Kia Optima hybrid with around 77,000 miles on the interstate at 70 mph when the HCS, battery management system and other hybrid battery warnings flashed on the screen. The display said to pullover over immediately and turn off the engine. The hybrid battery charge display went from mid charge to zero charge. The car went into limp mode with very limited power. Fortunately, I was able to get off the highway as there was an exit ramp close by. After turning off the car, it would not start again. I disconnected the 12V battery hoping it would clear it out but that didn't work. Had to get car towed to the Kia dealership. They replaced the hybrid battery's high voltage 125 Amp fuse with a 150 Amp fuse and the problem was fixed (cost of $370). A search on the internet revealed that this is a common occurrence on 2011 to 2016 Kia hybrids and Kia knows about this faulty/inadequate fuse problem but refuses to issue a recall. Kia issued a TSB #PS-515 DTC P1B25/P1B77 – 125 AMP HV FUSE INSPECTION that states to inspect the resistance on the factory 125 A fuse and replace if less than 1 Ohm resistance with new 150 A fuse. This is a relatively simple fix for Kia that could prevent a dangerous situation if the car were to lose power on a crowded interstate.
Electrical system, Exterior lighting, Service brakes, Mar 1, 2022
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.
Electrical system, Service brakes, Engine, Feb 19, 2022, fire
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.
Electrical system, Exterior lighting, Dec 2, 2021
The contact owns a 2015 Kia Optima. The contact stated that both front headlight bulbs, as well as the rear taillight bulbs, had repeatedly stopped working while driving, without warning lights being illuminated. The contact stated that she had to replace the bulbs several times during the year. The contact had taken the vehicle to several dealers who were unable to determine the cause for the failures. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was unknown.
Electrical system, Dec 1, 2021
The Bluetooth Ring volume is ear piercing loud. When a call comes in on a paired phone it startles the driver and may be loud enough to damage hearing. If adjusted to a lower setting the call volume can’t be heard. When adjusting call volume to a usable level it increases the ring volume again so the next call has the load ring alert. Kia has a TSB# ELE 100 (REV4) on the issue but expects the customer to pay for diagnosis and software update to an out of warranty radio. Instructions in the TSB indicate this could be corrected with a USB software update. Most customers could install themselves from a software download if provided. In my opinion it is a safety issue and a recall should be issued.
Service brakes, Hydraulic, Electrical system, Engine, Aug 18, 2021
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.
Electrical system, Engine, Jun 8, 2021
When I drive my car it smells just like it is burning or melting in the motor, it comes thru the vents and smells awful. It has only smoked a couple of times when I have turned it off. I have had it looked at but at first they couldn't find the problem. The second time I had it checked out they said that the changed the HECU on my car but it still smells like it is burning. It has been doing it for about 3 months.
Electrical system, Service brakes, Engine, Jun 7, 2021
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
Electrical system, Engine, May 11, 2021
TL* THE CONTACT OWNS A 2015 KIA OPTIMA. THE CONTACT STATED THAT THE DRIVER'S SIDE FRONT WINDOW WAS UNABLE TO CLOSE COMPLETELY. THE VEHICLE WAS TAKEN TO LOCAL DEALER ALM KIA SOUTH (4310 JONESBORO RD, UNION CITY, GA 30291, (678) 261-8409) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT AN UNKNOWN COMPONENT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE PERSISTED. THE CONTACT ALSO STATED THE VEHICLE WAS GAIN TAKEN TO ALM KIA SOUTH TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT YET REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 46,000.
Electrical system, May 4, 2021
TL* THE CONTACT OWNS A 2015 KIA OPTIMA. THE CONTACT WAS DRIVING AT 75 MPH, WHEN SHE SLOWED DOWN TO 50 MPH TO SWITCH LANE THEN ATTEMPTED TO ACCELERATE HOWEVER, THE VEHICLE WOULD NOT EXCEED 60 MPH. THE VEHICLE WAS DRIVEN FOR ABOUT 2 MORE MILES BEFORE IT WAS TOWED TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ALTERNATOR NEEDED TO BE REPLACED. THE ALTERNATOR WAS REPLACED HOWEVER, THE VEHICLE FAILED TO RESTART. THE INDEPENDENT MECHANIC THEN CONTACTED A KIA DEALER AND WAS INFORMED BY THE DEALER THAT THERE WAS A RECALL FOR THE VEHICLE WITH NHTSA CAMPAIGN NUMBER: 20V519000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS THEN TOWED TO PARKWAY FAMILY KIA (22555 US-59, KINGWOOD, TX 77339) TO BE DIAGNOSED. THE MECHANIC DETERMINED THAT THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE DEALER DETERMINED THAT THE FAILURE WAS DUE TO THE RECALL. THE DEALER THEN SENT THE DIAGNOSTIC FINDINGS TO THE MANUFACTURER FOR THE RECALL REPAIR APPROVAL HOWEVER, THE MANUFACTURER INFORMED THE DEALER THAT BECAUSE THE CONTACT HAD NOT DONE THE MANUFACTURER COMMUNICATIONS PRODUCT IMPROVEMENT UPGRADE: VPI1802 (ENGINE) THE RECALL WOULD NOT BE HONORED. THE CONTACT STATED THAT SHE NEVER RECEIVED THE NOTIFICATION FROM THE MANUFACTURER ABOUT THE PRODUCT IMPROVEMENT UPGRADE BECAUSE IT WAS SENT TO AN OLD ADDRESS THAT SHE NO LONGER LIVED AT. THE VEHICLE REMAINED AT THE DEALER UNREPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 143,000.
Electrical system, Exterior lighting, Service brakes, Apr 27, 2021
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.
Electrical system, Engine, Fuel/propulsion system, Mar 25, 2021
WHEN YOU ACCELERATE, FOR EXAMPLE TO PASS ANOTHER VEHICLE, THE VEHICLE WILL COMPLETELY SHUT OFF, ALL LIGHTS ILLUMINATING ON THE PANEL THE VEHICLE. THE VEHICLE MUST BE PLACED IN PARK AND RESTARTED. SOMETIMES IT STARTS RIGHT AWAY, SOMETIMES IT TAKES A FEW MINUTES.
Electrical system, Structure, Engine, Mar 15, 2021, fire
ON 3-14-2021 ABOUT 225PM I WAS ATTEMPTING TO MERGE ONTO THE I10 FREEWAY IN ONTARIO CALIFORNIA, WHILE MERGING ALL THE LIGHTS ON THE DASH LIT UP AND THE CAR PROCEEDED TO SHUT OFF AND MY SPEED WAS GOING DOWN . I ATTEMPTED TO PULL OVER OFF THE SHOULDER OF THE FREEWAY, ONCE I WAS STOPPED I TURNED THE CAR OFF. THE CAR THAN WAS ENGULFED WITH SMOKE AND FLAMES I JUMPED OUT THE CAR AND THE CAR LIT UP IN FLAMES. I CALLED ONTARIO POLICE AND FIRE DEPARTMENT.
Steering, Electrical system, Engine, Mar 6, 2021
I WAS HEADED TO KY DECEMBER 2020 TO VISIT MY FATHER. THE CAR STARTED MAKING RATTLING NOISE. AS I HIT THE GAS PETAL, THE CAR WAS STOPPING IN ON COMING 1-65 TRAFFIC HEADING NORTH. I PULLED OVER AND HAD TO CALL MY INSURANCE COMPANY TO TOW TO THE NEAREST AUTO REPAIR SHOP. I WAS NEARLY 50 MILES FROM BOWLING GREEN KENTUCKY (12-23-20). I CALLED MY INSURANCE AND WE SET UP ARRANGEMENTS FOR TOWING TO PICK UP THE NEXT MORNING (LESS THAN 24 HOURS- CHRISTMAS EVE). WITHIN LESS THAN 24 HOURS, THE CAR WAS IMPOUNDED BY KENTUCKY POLICE NEAR GLASGOW, KY. AFTER PAYING TOWING FEES AND TICKETS, I FINALLY GOT MY CAR TO AUTO COMPANY TO RUN DIAGNOSTICS REPORT. AFTER COMPLETION, I FOUND OUT THE ENGINE FAILED ALONG WITH MORE STUFF. I IMMEDIATELY CALLED THE DEALER WHO SOLD ME THE CAR (KIA-HUNTSVILLE, AL) TO ASK FOR ADVICE ON NEXT STEPS. HE TOLD ME TO CONTACT THE NEAREST KIA SERVICE DEPARTMENT NEAR WHERE THE CAR WAS IMMEDIATELY TO GET IT FIXED BECAUSE OF THE RECALL ON THE VEHICLE. THE CAR WAS FINALLY TOWED TO MARTIN KIA (BOWLING GREEN KENTUCKY). THEY PUT ME IN LINE TO HAVE THE VEHICLE PROPERLY AND COMPLETELY FIXED. ON JANUARY 4, 2021 THE VEHICLE WAS IN KIA POSSESSION TO FIX RECALL REPAIRS. MARCH 6, 2021 I WAS SCHEDULED TO PICK UP THE VEHICLE BECAUSE IT WAS PROMISED THAT THE VEHICLE IS COMPLETED. AFTER PICKING UP THE CAR, I HAD TO WAIT 45MINUTES BECAUSE MY CAR WAS LOCKED AND TIRE LIGHT CAME ON. I WAS PULLED TO SIDE AND TOLD THE VEHICLE WAS FIXED BY BRAND NEW EMPLOYEE AND TO CHECK TO MAKE SURE A ENGINE LIGHT DOES NOT COME ON BECAUSE IF SO, IT'S PROBABLY THE NEW HIRE FAULT FOR IT MESSING UP. AFTER ALL OF THAT, I WAS HEADED HOME AND THE CAR STOPPED A SECOND TIME! AFTER CONTACTING LOCAL POLICE, I WAS TOLD TO GO BACK TO KIA TO RETURN THE KEYS AND MAKE THEM TOW THE VEHICLE TO GET IT OFF OF THE INTERSTATE.
Electrical system, Engine, Feb 17, 2021
CAR ENGINE STOPPED WHILE DRIVING ON HIGHWAY. ROAD RANGER ATTEMPTED TO JUMP CAR OFF BUT SPARKS CAME AND MULTIPLE CABLES WERE BURNT OUT.. CAR WOULD NOT START. TOOK IT TO MULTIPLE AUTOMOTIVE SHOP AND WAS ADVISE TO CONTACT KIA FOR RECALL
Electrical system, Exterior lighting, Engine, Feb 12, 2021, fire
ENGINE LIGHTS KEEP COMING ON AND OFF. BUT DOESN'T GIVE A CODE WHEN I TAKE IT TO GET SERVICED. TOOK IT UP TO KIA TO TELL THEM THAT ON MY WAY HOME FROM THE DEALERSHIP, THAT MY WALL CAUGHT ON FIRE IN THE TRUNK FROM THE SOCKET THAT HOLDS THE BULBS.BACK LIGHTS GO OUT CONSTANTLY AFTER THE BULBS ARE CHANGED OR THE SOCKET HAS BEEN CHANGED.
Electrical system, Structure, Engine, Feb 3, 2021
WAS DRIVING DOWN MAIN ROAD APPROACHING REDLIGHY AND BRAKE PEDAL WENT TO STIFF AND CAR SHUT OFF WHILE ROLLING. COULD NOT GET TO START AGAIN AND SMELT ELECTRICAL BURNING SOMEWHERE. HAD TO BEG CAR TOWED HOME. TRIED JUMPING WITH A JUMP BOX TO ELIMINATE BATTERY AND IT WAS NOT ISSUE. ALMOST REAR ENDED VEHICLE INFRONT AND WAS STRANDED ON SIDE OF MAIN ROAD.