NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2015 Kia Optima. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
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.
My car has been consuming lots of oil. I took it in for an oil change and while test driving two of the mechanics stated the oil light came on and it ran out of oil on the test drive. Instead of saying anything about a possible issue with the engine, they went ahead and put oil in it and sent me on my way. Since, my car is still consuming loads of oil. I've taken it into the dealership several times for the same issue and each time they told me they can't do anything about it until it runs out of oil. One person advised to not put oil in it. Now the engine light came on, so I took it in again and this time I was told the cylinders have gone bad and one person that worked there said to let it run out of oil, but you didn't hear that from me, and they will replace the engine for free. I said, so I'm supposed to let the car die while I'm driving it, what happens if the car quits running in the middle of a turn and I get hit, the guy looked at me and said nothing. In addition, he asked if I had an extended warranty as its covered under an extended warranty. I'm pretty sure I did buy one, but I couldn't remember, so I called up the dealership I purchased it from and they said they couldn't tell me either since, they don't keep any paperwork after 7 years, and its been 8 years.They also said it wouldn't matter as it wouldn't be covered because of mileage. I have been complaining about the oil way before my mileage was over and I'm pretty sure I read something about mileage ext on Kia for this same issue.The last time I drove it, I was sitting idle in my car and the oil light came on, so I called the dealership, they asked if it started back up and I wasn't sure, so I tried and it started back up and the oil light went back off again, so I didn't have it towed down there. Now my understanding there is a new recall on the car with the fuel and it could catch fire and was stated to park it, so its been sitting for three months with nothing fixed.The car needs a new engine.
Sunroof spontaneously shattered while driving down the road. The glass is pushing outward like it was broken from the inside of the car. Nothing hit the care at the time, there was a loud explosion sound and then cracking sounds after that.
Driving one day and I hear a knocking sound coming from the engine. It locked on me on the way home and isn’t drivable. Took it to the dealership and they said it had a recall and the engine needs to be replaced. Kia denied the engine replacement saying I took to long to come in. I bought it used and never received a letter in the mail about it.
There is an open recall on the engine of my vehicle 2015 Kia Optima. The engine is giving problems and has been at the local dealership since December 1st, 2022. They stated they will not fix it because the vehicle has a salvage title. According to the information we have obtained this doesn't null the recall repairs on the vehicle. Please advise.
Anti Theft Security system is non-existent. There is a current known issue on the internet on the ease of theft of any Kia or Hyundai to certain years of manufacture. I am currently a single disabled person that could be a victim of vehicle theft because of a lack of this security software that Kia did not include on my 2015 vehicle. This Kia/Hyundai known issue could potentially leave anyone stranded in a dangerous situation. All other prior and current vehicles are equipped with the security software. Currently Kia & Hyundai has provided Lock bars for certain police departments to hand out, however .. not in my area. I am receiving warning letters from my Insurance company and have heard of some totally dropping coverages on all vehicles manufactured without the security software. This is a very dangerous situation and I believe that ALL VEHICLES AFFECTED SHOULD BE ISSUED AN IMMEDIATE RECALL AND SOFTWARE UPDATE PROVIDED BY THE MANUFACTURERS AT NO COST TO CURRENT OWNERS OF THESE DEFECTIVE VEHICLES. A proposed class action lawsuit was started in September 2022. In the meantime.. what happens to innocent people who go to a grocery store or doctors office only to find that their car had been stolen while they were inside? Or what happens when they can no longer receive insurance coverage because of the ease of this known lack of security originally promised from the manufacturer? These particular Kia/Hyundai's are missing a "key" anti-theft device..their keys lack computer chips for theft "immobilizer" systems that other car manufacturers have as a standard theft deterrant during those same years of manufacture & currently have on all new vehicles. A MANDATORY RECALL FOR REPAIR SHOULD BE ISSUED IMMEDIATELY BEFORE ALL INSURANCE COMPANIES REFUSE TO INSURE THESE VEHICLES! Anti-Theft technology was included on the sticker price but not installed! I am afraid to go to the grocery store!!
1. The paint on my car has been pealing off. I can make myself available for the car to be inspected. 2. No 3. I have the problem on multiple vehicles of the same make and model 4. Yes 5. No This is problem that the manufacturer should be responsible for. It causes monetary damages to the owners. Upon resale of the vehicle they will be out thousands of dollars towards the value of the car.
2015 KIA OPTIMA. CONSUMER WRITES IN REGARD TO ENGINE FAILURE. THE CONSUMER STATED THEY WERE NEVER NOTIFIED OF ANY RECALLS. THE MANUFACTURER WAS NOTIFIED, BUT HAD NOT OFFERED ANY ASSISTANCE.
The contact owns a 2015 Kia Optima. The contact stated while her mother was driving approximately 45-50 MPH, the vehicle lost motive power and stalled. There were no warning lights illuminated. The contact's mother depressed the brake pedal and veered to the side of the road. The vehicle failed to restart after several attempts and emitted abnormal loud knocking sounds. The vehicle was towed to the contact's residence. The vehicle was then towed the dealer where it was diagnosed that the engine needed to be replaced; however, the contact stated that an oil change was completed on the vehicle approximately one month earlier. The manufacturer was not notified of the failure. The failure mileage was unknown.
I BEEN REPORTED THE RECALL ABOUT MY CAR ENGINE AND OTHER PROBLEMS THATS GOING ON WITH IT BUT THE MANUFACTURER WON’T FIX IT SO WHAT ELSE CAN I DO TO HAVE ALL THESE RECALLS FIXED
I was driving to a new job , it was about 5:45am when I noticed my car wouldn’t go faster or stop. I seen fire , tried to stop car, I was going about 15-20 mph when i decided to just get out of the car and run , care went into complete flames
While driving at 65 mph check engine light turned on and I lost all power. Very dangerous. This is the second time this has happened and the second time I have reported this emergency situation has occurred. The last time this happened in 2019, Kia replaced engine then wiring harness. Your assistance is needed to prevent this doesn’t happen to other drivers.
Brake Failure, Having to pump brakes in order to stop vehicle, driver rear tail light burning, causing short in wiring
On the behalf of my daughter I am filing this formal complaint: * On August 10, 2022 my daughter was driving home from Des Moines to Cedar Rapids, Iowa. She was on the highway and all of the sudden her car engine shut down, no warning lights came on prior to this happening. She did not have power steering, it took all she had to pull the car over safely, she was able to use the brakes but barely. She then tried to restart the vehicle, it was able to restart with no other problems along the way. This incident happened at 2am, had this occured earlier in the day, with heavy traffic the safety of my daughter and others would have been at a high risk, this could have caused a major accident. * On October 9, 2022 My daughter was just exiting the interstate, warning light appeared. She was approaching her home, not far from the highway, when the car engine shut down once again but this time it would not restart. The vehicle remains undrivable but is available for inspection upon request. * On October 10, 2022 I sent my step-father over to her house to take a look at her car. From his findings he stated that the oil plug was loose and that the oil had drained out. * On August 2, 2022 She had an oil change done at Jiffy Lube (Cedar Rapids,Ia.) I filed a complaint assuming that they did not properly tighten the oil plug. The manager from Jiffy Lube informed me that an investigation is in motion at this time for Kia (2005-2020) and Hyundai's due to oil plugs loosening and engines ramdomly shutting down at highway speeds. At this time I am strongly advising a thorough investigation into this matter. Thank you for your time.
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.
August 6, 2022 on Kansas Turnpike near El dorado. 2015 Kia Optima LX 74,000 miles. With absolutely NO warning whatsoever revved high then began a knocking sound, then a horrible banging and died. No lights, no alarms. Steering became a problem. We were able to drift to the side of the road as we were already in the right lane. Once completely stopped dash lights came on. We had no idea of any recalls or issues. Engine never recovered and we procured roadside assistance. Waited 4 hours on the side of the turnpike. We have since learned of a class action lawsuit against Kia with this very issue. We are still waiting for an engine replacement/rebuild 15 weeks later!
Car has been broken in twice. First they stole all my belongings. The second time they took my car and got a ticket and destroyed the inside of it. The car can easily be stolen again. Only option I have is use the steering wheel lock that I purchased at autozone
Vehicle lost power steering completely. Has been inspected. Steering wheel sensor needs to be replaced. ABS light active as well as steering wheel light. No reason as to why this happen but it seems to be and ongoing issue for Kia Optima owners after reading other reports online.
UNKNOWN but I got my car in February, it’s always been sounding rough from the start but was told it’s normal, lately the past few months I noticed a little vibration and a change of sound in the motor but had no lights come up on dashboard so assumed it wasn’t a problem. Well to this day my engine is shaking very rough that my car vibrates extremely and making a clicking sound best way to describe it and my engine light as well as oil topper light came on just a few days ago which I’ve gotta an oil change roughly about 2 months ago and added oil as well recently. So not sure if I have a leak of some sort or what. My breaks are also bad but when I purchased the car one tire was missing two bolts cause they broke off. Lately a lot of problems have all come at once. But I don’t feel safe driving my car cause I feel it doesn’t accelerate as it should and it’s not running normally. It’s a 2015 kia optima. Says no safety recall but all the problems I’ve been having seem very relatable to what’s showing on the recall list for kias of my year.
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
2015 Kia Optima Hybrid HEV system. Months after purchasing the vehicle two different lights would come on the engine. One is the HEV warning light and the other is a flashing “Turn off engine and check HEV system”. The first time it happened the vehicle turned off. It was towed to Kia, 02/2020. They change some sensor and sent me on my way. 3 weeks later the HEV warning light came on again so it was towed to Kia for the 2nd time, 03/2020. This time they said they could not recreate the issue. A month later the light came on again and again but since the light never stayed on, I kept getting told by Kia that I’d have to take it in when the light stayed on. 01/2021 the light came on again, with the flashing warning and the vehicle turned off, mid-drive. It was towed to a mechanic shop near me, where they replaced the wiring harness completely, but a month later the same light came on again. Over the course of the year, the warnings kept turning up and time and time I kept getting told they needed the light on at the dealer so they could determine with the codes, what is wrong. 07/2022, light came on as I was merging on to the freeway and the car shut off. I was able to make it turn on and make it home safe. The next day I towed it to the shop where they replaced the wiring harness and they stated they could not touch it further since the codes they got where “High voltage battery” codes and a specific tech is the only one when could work on it. I took it to Kia where it stayed 33 days. They changed a part. Two days later the HEV light came on again, so I took it back. They kept it one day, drove it 60 miles and they could not recreate the issue. I got it back on Saturday, 5 miles out the light came back again and again. I took video. Called Kia and now the car is back at the dealer while they try and figure out the issue. I’m scared for my life. The car gives no warning when it decides to shut off. Wheel locks on the times it does turn off. HEV system is no good.
Pearl white paint is peeling and chipping. I have photos, paint Samples and Receipts from having to repair to prevent rust.
Kia cars lack an engine mobilizer or something and thieves are able to break in and bypass the cars alarm and break the steering column down and start the car with a simple usb and steal the car. Kia’s are being targeted because of this issue and are being stolen . This is a major safety problem and should be fixed . It has been all over the news and police departments are warning Kia owners about it .
As the car was running on the intersection, all the emergency lights came on from the vehicle. The car completely stopped but I was able to move it to a safe space. When I attempted to turn on the car again smoke came out of the engine.
Heard noise, while driving, hitting car. Fin cover for antenna broke off. Pulled over and luckily found it. Looks like it broke loose at connecting screws. Thankful no one was behind me at time.
The contact owns a 2015 Kia Optima. The contact stated while driving at an undisclosed speed, an abnormal burning odor was detected. The vehicle was towed to the dealer and was diagnosed with engine failure. The dealer informed the contact that the engine needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and declined the engine replacement. Upon investigation, the contact was made aware that the VIN was included in NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic) however, the contact had not yet received the recall notification. The failure mileage was approximately 73,000.
The contact owns a 2015 Kia Optima. The contact stated that while driving 20 MPH, an abnormal knocking noise was coming from the engine. The vehicle then lost motive power and stalled with the check engine warning light illuminated. The contact had the vehicle towed to an independent mechanic who diagnosed the vehicle with engine failure. The vehicle was then towed to a dealer where she was given an estimate for the repair. The manufacturer was notified of the failure and the contact was informed that the vehicle would not be covered under warranty or recall. The vehicle was not repaired. The failure mileage was approximately 99,000.
The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the air bag sensor needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 19,600.
Engine Failure due to rod bearing issues-faulty manufacturing parts appears to have gotten into engine preventing or binding the engine so that it will not start.
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.
engine oil leaks that may cause the vehicle to stall.
The contact’s son owns a 2015 Kia Optima. The contact stated that while her son was driving at an undisclosed speed, the vehicle stalled without warning. The contact then stated that her son was able to jumpstart the vehicle. The contact then stated that the battery was replaced however, the failure recurred. The contact stated that while her son was driving at an undisclosed speed, the vehicle stalled without warning. The contact’s son was unable to restart the vehicle. The vehicle was then towed to the contact’s residence. An undisclosed dealer was notified of the failure and the contact was referred to an independent mechanic for assistance. The vehicle was then towed to the independent mechanic to be diagnosed. The contact was informed that the engine failed and needed to be replaced. The vehicle was towed back to the contact’s residence where it remained. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unavailable.
The contact owns a 2015 Kia Optima. The contact stated while driving approximately 70 MPH, the vehicle started to decelerate. The contact depressed the accelerator pedal almost to the floorboard; however, the vehicle was decelerating with an abnormally loud knocking sound coming from the engine. The contact stated that the check engine warning light was illuminated. The contact managed to pull off the highway safely and stopped. The vehicle was not taken to a dealer nor independent mechanic. The vehicle was not diagnosed or repaired. The contact researched online and related the failure to NHTSA Campaign Number: 20V750000 (Engine). The manufacturer had not been informed of the failure. The failure mileage was approximately 140,000.
I buy the car 2 week ago and star turn on light slow I just get afraid because I didn't know that the car need to go back to Kia for the recall and is a used car I will like to see how soon I can get to the dealer to get fix is the only thing that I have for work . And is give me some issues to with the gas cap
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
The contact owns a 2015 Kia Optima. The contact stated while driving from a complete stop, there was smoke coming out from underneath the hood of the vehicle. The check engine warning light was illuminated. The contact veered to the side of the road. The vehicle was towed to an independent mechanic, where the radiator and the radiator hose were replaced; however, while driving two and a half weeks later, the vehicle stalled, and the steering wheel seized. The contact was able to veer to the side of the road by using physical strength to steer the vehicle. The vehicle was towed to the independent mechanic, where it was diagnosed that the failure was related to an unknown recall. The vehicle was towed the dealer, where the engine was replaced; however, the engine smoked while driving. The vehicle was towed to the dealer where the engine was replaced for a second time; however, the engine was incompatible with the turbocharger in the vehicle. The dealer informed the contact that she had to pay out-of-pocket to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 111,000.
Rapid delamination of paint including severe chipping and paint bubbles. Car was inspected at an auto body shop who provided the final determination of this issue as well as provided clarity that this is a known Kia issue. Kia is refusing to handle this.
5/17/22-Brought car in for a basic "what needs to be done for maintenance if I was to buy/sell this car". Thought it could be idling low so he suggested an oil change, spark plugs and a fuel injection service due to mileage. But no issues happening with the car. He did not have parts. Scheduled for June 20th. 6/20/22 Car serviced at Sun Mountain. Received call that on the test drive after service was completed that the car died mid drive. He got it back to the shop after jumping the battery. He ran a diagnostic and said everything besides the battery looked good. Battery was very low. He revved the engine and there was a rattling. I told him I had not heard that prior to bringing the car in. He brought up a recall that Kia had for Rod Bearing Failure. Paid and returned car home safely. 6/21/22 Car breaks down Called Kia to confirm the recall. Phoenix told me that there is a test that will take a few days to run and Kia will either replace engine or buy your car back. He said that the engine itself is on back order for months. He stated there was no loaner cars available and the next available time slot was Monday 6/27/22 for the test. I worked on securing a vehicle on my own and then called Kia back to schedule the test. While on the phone with Phoenix to schedule the test, the car started clanking and losing acceleration. I pulled over and turned it off. It would not turn back on. I got the car towed to Kia Tuesday afternoon. Large leak under car when towe 6/25/22 Phoenix called to say they finally got the car in for diagnostics and they are pulling in corporate to see if it is recall associated or if the fuel injection service could have damaged the engine. That corporate is closed on weekends and would have a better idea on lead time of the engine beginning of the week. 6/28/22 Denial of Claim I called Kia because I had not heard from them. Phoenix was out so Matthias checked on the status. He stated that Kia denied the claim. I asked him to send documentation
The contact owns a 2015 Kia Optima. The contact stated while driving approximately 70 MPH the accelerator felt soft to her and as she depressed the accelerator the vehicle began to lose forward momentum. The contact stated the "check engine" warning was illuminated and the engine was still functioning but the contact stated there was no power. The contact safely coasted the vehicle off the side of highway. The contact shut the vehicle off and then restarted and was able to move forward, however the engine could only manage to move the vehicle at approximately 35 MPH and still had the "check engine" warning illuminated. The contact drove the vehicle to her residence and later to an auto parts store who scanned the vehicle and determined that the "knock sensor (P1326) code was detected. The vehicle was not repaired. The contact had taken the vehicle previously to a dealer to have a recall on the "knock sensor" repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 147,000.
There was no accident. My paint keeps chipping. I’ve never had a car chip paint like this one. I’ve seen multiple other cars who have the same exact car in the color Snow White have this problem. Very frustrating.
The contact owns a 2015 Kia Optima. The contact stated while driving approximately 45 MPH, the check engine warning light illuminated before the vehicle lost motive power and stalled. The vehicle was taken to an independent mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. The catalytic converter was replaced however, the check engine warning light remained illuminated. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 63,000.
On 6/5/2022 my vehicle broke down and had to be towed. On Monday 6/20/2022 I took my vehicle to the Colonial Kia dealership in Chester Virginia. On Wednesday 6/22/2022 I got a call from the dealership saying I would need a new engine and the problem with my vehicle was a part of the large Kia engine settlement. But that Kia denied my claim to get my car fixed and paid for by KIA because I did not get a previous recall fixed. (recall # 21V331). My car is not drivable and Kia is liable for it because of the KIA engine Settlement. I never received any information in the mail about the above stated recall on my vehicle so therefore I had no idea it had to be fixed.
Engine locked up
The KIA engine associated with the KIA Engine recall falls under the recall but KIA denied the claim to repair. The oil change documentation provided showed consistently with oil changes to prove no negligence. WE didn't have the complete oil change history as all of the paper receipts were no kept and the mechanic shop performing the oil change converted to a new system and therefore could not provide the documentation requested.
2015 KIA OPTIMA WHITE PEAR PAINT JOB DELAMINATION ON HOOD, TRUNK SIDE PANELS BY WINDOWS AND FRONT AND BACK WINDSHIELDS. AVAILABLE FOR INSPECTION, HAS BEEN INSPECTED. NATIONAL PROBLEM, INSPECTED BY KIA DEALER REFERRED BODY SHOP. FIRST TIME APPEARED VERY VISIBLE 1 YEAR 1/2 AGO. I HAVE REACHED OUT TO KIA, FILED CLAIM, CASE #[XXX] ON 10/11/2023, TODAY, 11/17/2023 RECEIVED E-MAIL "VEHICLE IS OUT OF WARRANTY". MY VEHICLE WAS MANUFACTURED IN GEORGIA WITHIN THE SAME TIME(S) OF THE CLASS ACTION RECALL FOR 2013 AND 2014 MODELS. I REQUEST MY CASE BE RECONSIDERED FOR THE PAINT REQUEST. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
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.
Hello, I have a 2015 Kia Optima with Snow White Pearl paint. The paint has started to bubble and chip off. I understand that this paint color is an issue for cars in South Florida which have had the same issue. I have included pictures of the areas and also the vin with paint code.
The contact owns a 2015 Kia Optima. The contact stated while driving approximately 40 MPH and depressing the accelerator pedal to merge onto the highway, the vehicle failed to respond as needed. The contact stated that she had not observed any warning lights being illuminated. The contact pulled off the highway and had the vehicle towed to a local mechanic. The mechanic diagnosed the vehicle and determined that the engine had no oil and had seized. The mechanic determined that the engine needed to be replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 84,000.
The long block detached while driving on access road The life of those around me including my daughter The vehicle was inspected by the dealership
Driving down Highway at 72 mph when vehicle shut down wheel got tight then vehicle restarted itself. Taken to dealership ran multiple test and cannot find an issue with the vehicle. There are no warning lights there was no symptoms or anything else like that that would have let me know the vehicle was would shutdown/restart while driving.
Data synced from NHTSA on May 4, 2026