2017 Kia Optima Problems & Owner Complaints

Engine 161 8 fire

“ON [XXX], AROUND 11:30 A.M., I WAS DRIVING [XXX] ON [XXX], GOING ABOUT 78 MPH, JUST PASSED [XXX], WHEN THE LIGHTS ON THE DASH LIT UP, SMOKE STARTED COMING FROM THE BACK OF THE CAR, THEN THERE WAS SMOKE COMING FROM UNDER THE HOOD THEN SMOKE STARTED COMING FROM THE A/C VENTS. THERE WAS A FULL FLEDGE FIRE UNDER MY HOOD. THE GUY DRIVING NEXT TO ME, KINDA GESTURED FOR ME TO PULL OVER, ALTHOUGH I WAS ALREADY THINKING I NEEDED TO PULL OVER, THE SHOCK OF WHAT WAS HAPPENING, I LOST MY TRAIN OF THOUGHT. I PULLED OVER AND SO DID THAT GUY, HE HAD A FIRE EXTINGUISHER AND TRIED TO PUT OUT THE FIRE BUT TO NO…”
NHTSA complaint #11581052, 2024 · fire

“Turbocharger failed at 90000 miles because fan assembly was bad. May have happened when dealership replaced high pressure fuel pump. Fan sheared and metal parts got in the engine about a thousand miles after that.”
NHTSA complaint #11595366, 2023 · fire

“The engine on this vehicle caught fire while the vehicle was parked and not running. It had previsouly been drive for approximately 4 hours throughout the day but at the time of the incident there were no warning dashlights present. It is currently available for inspection, however depending on the length of this invesitagion it may no longer be available as i work with my insurance company determing next steps. My safety and the safety of other were put at risk by and open flame and smoke that occured during the fire. Ultimately the Fire Department were required to put out the fire. Approxima…”
NHTSA complaint #11551305, 2023 · fire

Unknown Or Other 33 1 crash 2 fire

“No vehicle warning as it became engulfed in flames. Fire started from under the hood.”
NHTSA complaint #11509680, 2023 · fire

“THE WIRING HARNESS WAS REPLACED IN MY 2017 KIA OPTIMA IN 2019 AT APPROXIMATELY 45,000 MILES. KIA REPLACED MY ENGINE JANUARY 2020 BECAUSE IT WAS CONSUMING LARGE AMOUNTS OF OIL. I JUST GOT MY CAR BACK IN JANUARY 28, 2021 WITH A SUPPOSEDLY NEW ENGINE. ON MARCH 3, 2021, MY CAR CAUGHT FIRE WHILE PULLING OUT OF MY NEIGHBORHOOD ACTUALLY DRIVING DOWN THE STREET. SMOKE AND FLAMES WERE COMING OUT FROM UNDERNEATH THE HOOD THE OF THE CAR. THE ENTIRE FRONT END OF THE CAR BURNED. THANKFULLY, THE FIRE DEPARTMENT GOT THE FIRE OUT AND NO ONE WAS INJURED.”
NHTSA complaint #11399073, 2021 · fire

“There is a viral trend spreading throughout the country that shows how easy it is to steal a key-start Kia or Hyundai. The perpetrators bashed my back rear window, dislodged the undercarriage of the steering wheel, and used something as simple as a USB cable to turn a knob and start the ignition. My safety was put at risk as well as others because these people that stole my car clearly do not care about their own life or others. No one steals a car for a positive reason. They drove it recklessly and abandoned it without concern for anyone. Kia and Hyundai need to address this issue or more and…”
NHTSA complaint #11473635, 2022 · crash

Electrical System 25 1 crash 2 fire

“THE WIRING HARNESS WAS REPLACED IN MY 2017 KIA OPTIMA IN 2019 AT APPROXIMATELY 45,000 MILES. KIA REPLACED MY ENGINE JANUARY 2020 BECAUSE IT WAS CONSUMING LARGE AMOUNTS OF OIL. I JUST GOT MY CAR BACK IN JANUARY 28, 2021 WITH A SUPPOSEDLY NEW ENGINE. ON MARCH 3, 2021, MY CAR CAUGHT FIRE WHILE PULLING OUT OF MY NEIGHBORHOOD ACTUALLY DRIVING DOWN THE STREET. SMOKE AND FLAMES WERE COMING OUT FROM UNDERNEATH THE HOOD THE OF THE CAR. THE ENTIRE FRONT END OF THE CAR BURNED. THANKFULLY, THE FIRE DEPARTMENT GOT THE FIRE OUT AND NO ONE WAS INJURED.”
NHTSA complaint #11399073, 2021 · fire

“WHILE MY SIGNIFICANT OTHER AND I WERE DRIVING DOWN THE HIGHWAY OUR CAR BEGAN SMOKING FROM UNDER THE HOOD, THEN SMOKE BEGAN COMING THROUGH THE AIR VENTS INSIDE THE CAR; WITHIN SECONDS WE SEEN FLAMES COMING OUT FROM UNDER THE HOOD AND IMMEDIATELY EVACUATED THE VEHICLE IN HEAVY TRAFFIC WITH NO WHERE TO PULL OVER. WITHIN MINUTES THE ENTIRE CAR WAS ENGULFED IN FLAMES. THERE WAS NO WARNING, OUR CAR WAS REGULARLY MAINTAINED, THERE WERE NO CHECK ENGINE LIGHTS OR OTHERS DISPLAYING ON THE DASH, NO LEAKS OR OVERHEATING TO CAUSE THIS.”
NHTSA complaint #11233869, 2019 · fire

“TL* THE CONTACT OWNS A 2017 KIA OPTIMA. WHILE ATTEMPTING TO ACCELERATE FROM A STOP, THE VEHICLE STALLED WITHOUT WARNING. AS A RESULT, ANOTHER VEHICLE CRASHED INTO THE REAR OF THE CONTACT'S VEHICLE. THERE WERE NO INJURIES AND A POLICE REPORT WAS FILED. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE. THE VEHICLE WAS TAKEN TO JEFF WYLER KIA (LOCATED AT 5815 DIXIE HWY, FAIRFIELD, OH 45014) WHERE IT WAS DIAGNOSED, BUT THE TECHNICIAN COULD NOT FIND A FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER STATED THAT THEY WOULD GET BACK WITH THE CONTACT. THE CONTACT HAD NOT HEARD BACK FROM THE MANUFACTUR…”
NHTSA complaint #11019438, 2017 · crash

Fuel/Propulsion System 20 1 fire

“ON [XXX], AROUND 11:30 A.M., I WAS DRIVING [XXX] ON [XXX], GOING ABOUT 78 MPH, JUST PASSED [XXX], WHEN THE LIGHTS ON THE DASH LIT UP, SMOKE STARTED COMING FROM THE BACK OF THE CAR, THEN THERE WAS SMOKE COMING FROM UNDER THE HOOD THEN SMOKE STARTED COMING FROM THE A/C VENTS. THERE WAS A FULL FLEDGE FIRE UNDER MY HOOD. THE GUY DRIVING NEXT TO ME, KINDA GESTURED FOR ME TO PULL OVER, ALTHOUGH I WAS ALREADY THINKING I NEEDED TO PULL OVER, THE SHOCK OF WHAT WAS HAPPENING, I LOST MY TRAIN OF THOUGHT. I PULLED OVER AND SO DID THAT GUY, HE HAD A FIRE EXTINGUISHER AND TRIED TO PUT OUT THE FIRE BUT TO NO…”
NHTSA complaint #11581052, 2024 · fire

“Loosing oil putting oil in every 3 to 4 days no leaks on ground or oil pan or drain plug.oil don't smell or looks burnt happened around did 2 oil changes in a week still the same. Car will sputer hesitation on acceleration every so often”
NHTSA complaint #11741793, 2026

“The electrical wiring harness connecting to the hybrid system electric fuel pump(s) was found to have significant corrosion and a missing factory-installed protective covering. This is a manufacturing defect. The protective covering was never installed at the factory, leaving the wiring exposed to moisture and corrosion from the time the vehicle was built. COMPONENT THAT FAILED: Electrical wiring harness to hybrid electric fuel pump(s). Missing factory protective covering caused corrosion. The failed component is available for inspection upon request. SAFETY RISK: Corroded wiring in a hybrid…”
NHTSA complaint #11731494, 2025

Power Train 20

“Loosing oil putting oil in every 3 to 4 days no leaks on ground or oil pan or drain plug.oil don't smell or looks burnt happened around did 2 oil changes in a week still the same. Car will sputer hesitation on acceleration every so often”
NHTSA complaint #11741793, 2026

“My fiancée and I just recently bought this car with the 1.6T-GDi engine I immediately replaced the oil even though the dealership said that he just replaced it. I put 7 quarts of oil topping off from awk consumption after I initially changed the oil filter. Those 7 quarts were added over the period of three weeks and it’s just progressively gotten worse. I’m putting a quart to 1.5 quarts of oil in here every other day. Worried about it causing total failure & being at risk of being stranded with 2 kids due to the only engine I’ve been able to find that Kia doesn’t have any recall touched base…”
NHTSA complaint #11715807, 2025

“Vehicle experiences sudden and dangerous loss of power while driving, including hesitation during acceleration, consistent with connecting-rod bearing failure risk known in this model’s GDI engine. Dealer estimate found timing and oil-flow component failures connected to internal engine damage. Vehicle is unsafe to drive and stalls/lacks power unexpectedly, creating a high risk of crash.””
NHTSA complaint #11704089, 2025

Exterior Lighting 15

“I own a 2017 Kia Optima. My vehicle was brought in for the tail light recall at Lupient Kia, but the dealership only replaced a bulb and refused to replace the harnesses. I was told by the service advisor (Brad Baranowski) that my tail lights had “nothing to do with the recall” and that I would need to pay $210 for a diagnosis, even though I am still experiencing the exact defect described in the recall (shortage/failure in the harness causing tail light malfunction and warning lights). This incomplete recall repair is a safety hazard my tail lights continue to fail, and I have received ticket…”
NHTSA complaint #11684748, 2025

“I drive with my lights on auto. Occasionally the lights go out for no apparent reason. Both inside and headlights. I then have to hold the high beam switch on until I can turn lights on and off or use directional. Sometimes using the directional will cause lights to go out as well. This can happen several days in a row or maybe once or twice a week. I have noticed a few times the box appearing in my dashboard saying lights were off. I had done nothing for them to go out. If a cop sees this happen I am sure to get pulled over. This has been going on for a year=3 trips to 2 different de…”
NHTSA complaint #11573724, 2024

“I have my headlights on auto so they turn on but they turn on during the day and then off at night they turn on they have turn off when I'm diving at night on freeway and turn back on”
NHTSA complaint #11557147, 2023

Vehicle Speed Control 13 1 crash 2 injury

“On 6 June 2022 I was driving Eastbound Interstate 80 passing Fairfield, CA. Traffic was moderate, average traffic speed 65. The Kia’s Adaptive Cruise was enabled and set to the maximum amount of safe distance. I recall the car directly in front of me changed lanes to pass a truck towing a trailer. I remember the Kia began to accelerate and I couldn’t turn the wheel. Next memory was opening my eyes to the dust smoke of deployed air bags. I lost consciousness likely due to the sudden impact and air bags deployed. I was taken to a Fairfield hospital by ambulance where I spent 4 days. A slurry o…”
NHTSA complaint #11534208, 2022 · crash · 2 injury(ies)

“The power steering stopped working and the car became hard to turn because of it. The power steering light (red color with steering wheel and exclamation point to the right of it) came on also.”
NHTSA complaint #11661833, 2025

“The KSDS in my engine is causing engine failure due to the dealership failing to fix the problem when I first experienced stalling, lagging and misfiring of my vehicle, which would often make it shake and I would have to turn the car off and reignite it, sometimes more than once. My safety is at risk when driving, because the vehicle will lag while trying to accelerate in traffic. My mechanic researched the issue and found the recall and Kia said they fixed it when it was issued and they didn’t. My CHECK ENGINE light is flashing now and it continues to lose power. I have contacted Kia abo…”
NHTSA complaint #11607864, 2024

Steering 11 2 crash 2 injury

“On 6 June 2022 I was driving Eastbound Interstate 80 passing Fairfield, CA. Traffic was moderate, average traffic speed 65. The Kia’s Adaptive Cruise was enabled and set to the maximum amount of safe distance. I recall the car directly in front of me changed lanes to pass a truck towing a trailer. I remember the Kia began to accelerate and I couldn’t turn the wheel. Next memory was opening my eyes to the dust smoke of deployed air bags. I lost consciousness likely due to the sudden impact and air bags deployed. I was taken to a Fairfield hospital by ambulance where I spent 4 days. A slurry o…”
NHTSA complaint #11534208, 2022 · crash · 2 injury(ies)

“There is a viral trend spreading throughout the country that shows how easy it is to steal a key-start Kia or Hyundai. The perpetrators bashed my back rear window, dislodged the undercarriage of the steering wheel, and used something as simple as a USB cable to turn a knob and start the ignition. My safety was put at risk as well as others because these people that stole my car clearly do not care about their own life or others. No one steals a car for a positive reason. They drove it recklessly and abandoned it without concern for anyone. Kia and Hyundai need to address this issue or more and…”
NHTSA complaint #11473635, 2022 · crash

“Since 4/1 my car has intermittently lost power steering. I received dashboard warning lights and the wheel was difficult to turn. When I shutoff the car and turned back on, the warning lights were gone and the steering returned. My mechanic did a diagnostic and found the following codes c1259, c1260, c1290 and c1688 each time the incident occurred. After research, we discovered these codes relate to TBS CHA114 and TSB CHA864 under extended warranty WTY023. I was unable to upload the TBS documents. The same thing happened on 6/18. I brought the car to a different dealer. The first time t…”
NHTSA complaint #11747492, 2026

Forward Collision Avoidance 8 1 crash 2 injury

“On 6 June 2022 I was driving Eastbound Interstate 80 passing Fairfield, CA. Traffic was moderate, average traffic speed 65. The Kia’s Adaptive Cruise was enabled and set to the maximum amount of safe distance. I recall the car directly in front of me changed lanes to pass a truck towing a trailer. I remember the Kia began to accelerate and I couldn’t turn the wheel. Next memory was opening my eyes to the dust smoke of deployed air bags. I lost consciousness likely due to the sudden impact and air bags deployed. I was taken to a Fairfield hospital by ambulance where I spent 4 days. A slurry o…”
NHTSA complaint #11534208, 2022 · crash · 2 injury(ies)

“My vehicle is experiencing engine issues consistent with the known Theta II GDI engine defects — including rod bearing failure piston rings engine stalling, I understand that Kia has offered extended warranty coverage through the engine defect settlement, provided the Knock Sensor Detection System (KSDS) update was installed before failure. I am unsure whether this update has been applied and would like to confirm my eligibility. I respectfully request: 1.Confirmation of KSDS update installation on my VIN 2.A review of my eligibility for engine inspection and coverage under the extended wa…”
NHTSA complaint #11669359, 2025

“Twice while driving in rain my front end collision warning has taken control from me and slammed on the brakes bringing my car to a full stop. There was no vehicle or object in front of me either time. The second time I narrowly missed being rear ended.”
NHTSA complaint #11547008, 2023

Seat Belts 8

“My driver's seat seatbelt has completely locked up rendering unusable. It neither retracts or goes out further so it is stuck in a state where it cannot buckle with a person in it. My car is only 7 years old and I have only had it for4 years.”
NHTSA complaint #11640169, 2025

“Drivers side seat belt will not click into latch”
NHTSA complaint #11618738, 2024

“Engine is burning 2 QT of oil every month and burning it in under 1000 miles. Kia dealership says it's a common issue but can't help me until the engine seizes up. The car has less than 85k miles on it. How can this be a common issue but they can't fix it till the engine dies? What if the engine dies out of warranty? Then I'm out 12k for a new engine that will die in 80k miles. This should be a recall.”
NHTSA complaint #11615129, 2024

Engine And Engine Cooling 7

“The contact owns a 2017 Kia Optima. The contact stated she had noticed that the vehicle required more oil between oil changes. Additionally, the contact had noticed that oil was leaking underneath the vehicle. The contact stated that the low oil pressure warning light would only illuminate upon depressing the brake pedal. The vehicle was taken to an independent mechanic, where no oil leak was found, and the contact was advised to constantly check the engine oil level. The contact stated that upon checking the oil level recently, five quarts of oil needed to be added to the vehicle. The vehicle…”
NHTSA complaint #11678456, 2025

“The contact owns a 2017 Kia Optima. The contact stated that upon routine maintenance with a local independent mechanic, it was discovered that the vehicle had low engine oil. No warning light was illuminated. The vehicle was taken to a local dealer, where it was determined that an oil consumption test was needed to determine any failure. The vehicle was not repaired. The check engine warning light was illuminated. The contact stated that engine oil was added almost every 2 weeks. The message to "Contact the Dealer" was displayed. The vehicle was towed to Team Kia of El Cajon (541 N Johnson Ave…”
NHTSA complaint #11696145, 2024

“The contact owns a 2017 Kia Optima. The contact stated while driving approximately 35 MPH, the check engine warning light illuminated. The contact reset the check engine warning light however, the light became illuminated again. The vehicle was taken to a dealer and the contact was informed that the engine oil was low and needed to be topped off. Additionally, the dealer offered to perform an oil consumption test. The vehicle was not repaired. The contact stated that he had researched online and related the failure to an engine design flaw. The contact requested that the dealer attempt to repa…”
NHTSA complaint #11552931, 2023

Service Brakes 6

“Warning lights displayed for ABS and ESC systems. Had Autozone pull the OBD2 codes which indicated the left rear wheel speed sensor failed resulting in failed/disabled ABS and ESC systems. I replaced the bad rear wheel hub/sensor which corrected the problem. I no longer have that failed component. A few months later, warning lights came on again. I again had the codes pulled by Autozone and this time it was the right rear wheel speed sensor. I have the new part but have not yet replaced it so I could keep the defective part for the right wheel. The first one failed in April 2024 and the seco…”
NHTSA complaint #11669619, 2024

“Bought this car 10 months ago with 16000 miles on it my enjine light is on car wouldnt start its 2017 kia optima also my passenger seatbelt sign on my dash keeps going off and nobody is in the seat so i have to fasten the seat belt just so it will stop dinging while i drive my front passenger side brakes sound like they are scrubbing when u stop i had mechanic look at it he said he dont see nothing he resurfaced my rotors and its still making that noise”
NHTSA complaint #11473776, 2022

“The contact owns a 2017 Kia Optima. The contact stated while driving 50 MPH, while slowing down the brake pedal was depressed and would engage however, after several seconds the brake would disengage and the vehicle would roll forward. The contact was able to safely stop and noticed a knocking sound coming from the rear area in the trunk as the vehicle came to a stop. The contact stated no warning light was illuminated. The contact took the vehicle to an independent mechanic, where it was diagnosed however, the mechanic found no failure. The vehicle was not repaired. The manufacturer had been…”
NHTSA complaint #11453860, 2022

Air Bags 5 1 crash 5 injury

“The contact owned a 2017 Kia Optima. The contact stated that while driving at 35 MPH, another vehicle crashed on the front passenger side tire of the vehicle. Due to the impact, the vehicle was sent over four lanes of traffic and jumped over a curb. The contact stated that the front air bag was deployed only after the vehicle jumped the curb; no other air bags in the vehicle were deployed despite the contact's children in the vehicle's rear seat. The contact stated that metal shrapnel was released upon deployment of the air bag. The contact used her left arm to block the fragments from hitting…”
NHTSA complaint #11582639, 2024 · crash · 5 injury(ies)

“March 2022, (approximately 72,000 miles)while driving to work my car shut off. I was in drive at a red light. Noticeable decreased acceleration and vibration. Took it to the dealership for routine oil change and mentioned incident. Technician was not able to find cause. Ok so be it. Now May at a little over 73,000 miles multiple lights began to illuminate and flash. Still with decreased acceleration it was noticed on a Friday morning on my way to work: 1. Oil light flashed on and off for approximately 2 minutes. 2. Air bag light stays on 3. Electronic Stability Control light stays on I sched…”
NHTSA complaint #11465829, 2022

“My air conditioner all of a sudden went out. No air would blow. Took it to Kia and it turns out that a fuse box blew on the main wiring harness, evidenced by burn marks on the bottom which then blew out my fan motor. Seems that Kia has had a lot of faulty wiring harnesses and it could have definetly caused a fire and is a safety hazard. My car is out of warranty by 8k miles and they are trying to make me pay for something that I believe is a defect as they said themselves that they cant even determine the cause as this is not normal wear and tear nor something I could have caused. I cannot…”
NHTSA complaint #11448421, 2022

Structure 5 1 fire

“WHILE MY SIGNIFICANT OTHER AND I WERE DRIVING DOWN THE HIGHWAY OUR CAR BEGAN SMOKING FROM UNDER THE HOOD, THEN SMOKE BEGAN COMING THROUGH THE AIR VENTS INSIDE THE CAR; WITHIN SECONDS WE SEEN FLAMES COMING OUT FROM UNDER THE HOOD AND IMMEDIATELY EVACUATED THE VEHICLE IN HEAVY TRAFFIC WITH NO WHERE TO PULL OVER. WITHIN MINUTES THE ENTIRE CAR WAS ENGULFED IN FLAMES. THERE WAS NO WARNING, OUR CAR WAS REGULARLY MAINTAINED, THERE WERE NO CHECK ENGINE LIGHTS OR OTHERS DISPLAYING ON THE DASH, NO LEAKS OR OVERHEATING TO CAUSE THIS.”
NHTSA complaint #11233869, 2019 · fire

“On 11/02/2023 I mailed in the KIA request for Reimbursement form. I included a reciept from KIA of Fargo, ND for the Trunk latch assembly. My trunk latch failed in August of 2022, I had to leave Fargo so I cancelled my service appointment. Then purchased the trunk latch assembly and installed it myself. I included labor of $180 and part cost of $62.68. KIA sent an aknowlegment of the reimbursement form on 02/22/2024 they were reviewing the form. As of today I have not yet received the reimbursement. KIA is not following through in a timely manner on this trunk latch recall.”
NHTSA complaint #11595347, 2022

“Several weeks ago, we had trouble opening and closing the trunk of our 2017 KIA Optima. Then a few weeks ago, the trunk of our KIA Optima closed and would not open at all. Because of the pandemic, we didn't contact KIA. But today, 16 Dec. 2021, as my wife was driving north in heavy traffic on US Highway 25 in Albuquerque, NM, the trunk suddenly opened and blocked her view of the cars behind her. Luckily she was in the right lane and was able to exit the highway. Otherwise there might have been a serious accident. We bought the car in 2017 from Fiesta KIA in Albuquerque, NM (505-999-2745)…”
NHTSA complaint #11444058, 2021

Suspension 3

“I just bought this car and it runs thru oil fast.”
NHTSA complaint #11746667, 2026

“My car is consuming major oil. I am having to put at minimum 3 to 4 quarts of oil every 3 days. I am having major loss of power. My car has oil fouled far too many spark plugs. In the last 3 months, I have had to replace the spark plugs three separate times. Within the last 3 weeks I have replaced the following: 1. Ignition Coils 2. Valve Cover Gasket 3. PCV Valve 4. 2 separate sets of spark plugs and 1 singular spark plug for Cylinder #4. My car is having a major oil consumption problem and the performance has been severely affected.”
NHTSA complaint #11509681, 2021

“POWER TRAIN; SHIFT LOCK SPECIFICALLY: HAD TO USE THE RELEASE CONTROL MORE THAN ONCE. WHILE DRIVING WHEN IT HAPPENS, I FEEL A SURGE/ DECLINE IN ACCELERATION(SOMETHING I REQUESTED BE CHECKED A YEAR AND A HALF AGO, BUT KIA SAID THEY COULD NOT RECREATE MY DESCRIPTION).CONTINUES TO DRIVE BUT SLUGGISH TO ACCELERATE. ONCE I PUT INTO "PARK" I CANNOT GET IT OUT OF PARK EXCEPT TO USE RELEASE. IT DID RESET(?) WHEN I TURNED THE CAR OFF. SUSPENSION; FIRST FEW MONTHS OF OWNING THE CAR I PERIODICALLY HEARD A CREAK IN REAR SUSPENSION HERE AND THERE WHEN BACKING OUT OF DRIVEWAY/GUTTER SLOPE. HAVE NOTICED AN I…”
NHTSA complaint #11340067, 2020

Visibility/Wiper 3

“I CAN NOT SEE THE CAR ON THE RIGHT IF I WANT TO SWITCH LANES ON A HIGH WAY. IN TRAFFIC I GET NOT ZOOM IN AND OUT OF LANES, EITHER I (THE DRIVER) OR THE PASSENGER NEEDS TO TURN THEIR HEAD IN ORDER FOR THE DRIVER TO TURN RIGHT. I TRIED THE LITTLE MIRRORS THAT YOU STICK ON BUT THAT DID NOT WORK. WHEN I TEST DROVE IT, I DID NOT REALIZED IT FOR I DROVE IT REGULAR ROADS”
NHTSA complaint #11320008, 2020

“THE REAR VIEW MIRROR IS SITUATED TOO LOW, CREATING A LARGE BLIND SPOT IN THE CENTER OF THE WINDSHIELD. OFTEN, AT A 4-WAY STOP, THE CAR APPROACHING FROM THE RIGHT IS COMPLETELY BLOCKED OUT. DRIVER IS FORCED TO CROUCH DOWN SO AS TO LOOK UNDER THE MIRROR IN MANY DRIVING SITUATIONS. THIS HAS NEARLY CAUSED AN ACCIDENT A NUMBER OF TIMES.”
NHTSA complaint #11268067, 2019

“WAS DRIVING THROUGH A TUNNEL WHEN I HEARD A LOUD POP, AND THEN THE SOUNDS OF GLASS SHATTERING AND WIND. THE SUN ROOF OF MY CAR WAS COMPLETELY CRACKED. THE INTERIOR SUN SHADE WAS THE ONLY THING THAT PREVENTED ME FROM HAVING A GLASS SHOWER.”
NHTSA complaint #11122715, 2018

Electronic Stability Control (Esc) 2

“I WAS DRIVING TO WORK AT NIGHT TIME FOR ABOUT A WEEK STRAIGHT MY HEAD LIGHTS WOULD RANDOMLY TURN ON AND OFF BY THEIR SELVES WHILE I'M DRIVING AND THEN MY CAR WOULD BE SITTING IN MY PARKING SPACE AND MY NEIGHBORS TOLD ME MY LIGHTS WOULD JUST BE ON ALL NIGHT AND MY CAR WOULD BE LOCKED AND EVERYTHING AND ONE DAY I WENT OUT TO START MY CAR AND I COULDN'T EVEN UNLOCK IT TO GET IN IT SO I THOUGHT IT MIGHT'VE BEEN MY CAR REMOTE BATTERY DIED AND SO I ASKED A NEIGHBOR THAT WORKS ON CARS TO SEE WHAT IT COULD BE THEY POPPED MY HOOD AND CHECKED MY CAR BATTERY AND IT WAS COMPLETELY DEAD, THEY TRIED TO GIVE…”
NHTSA complaint #11259078, 2019

“TL* THE CONTACT OWNS A 2017 KIA OPTIMA. THE CONTACT STATED THAT THE AIR BAG INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO WESELOH KIA CARLSBAD (LOCATED AT 5331 PASEO DEL NORTE, CARLSBAD, CA 92008 AT (760) 496-3131) WHERE IT WAS DIAGNOSED THAT THE FRONT PASSENGER SIDE SEAT BELT WAS DEFECTIVE AND CAUSED THE LIGHT TO REMAIN ILLUMINATED. THE VOLTAGE ALTERNATOR ASSEMBLY NEEDED TO BE REPAIRED. THE VEHICLE WAS REPAIRED. WHILE DRIVING 40 MPH, THE VEHICLE INADVERTENTLY DRIFTED TO THE RIGHT AND LEFT. THE VEHICLE WAS THEN TAKEN BACK TO WESELOH KIA CARLSBAD, BUT NO DIAGNOSTIC CODES WERE FOUND AND THE FA…”
NHTSA complaint #11021617, 2017

Fuel System 2

“The contact owns a 2017 Kia Optima. The contact stated that after driving, there was an abnormal fuel odor inside the vehicle. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, who informed the contact that the fuel pump assembly and fuel line needed to be replaced. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 46,000.”
NHTSA complaint #11538710, 2023

“The contact owns a 2017 Kia Optima. The contact stated while stationary at a traffic light, while depressing the accelerator pedal, the vehicle hesitated. The check engine warning light was illuminated. The contact was able to continue driving to her residence. The contact took the vehicle to an independent mechanic and was informed that the engine knock sensor needed to be replaced. The contact called the local dealer and made them aware of the failure. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 18V907000 (Fuel System, Gaso…”
NHTSA complaint #11428336, 2021

Hybrid Propulsion System 1

“The contact owns a 2017 Kia Optima. The contact stated that the low battery warning light was illuminated, and the message stating an electrical failure was occurring was displayed on the infotainment center. The battery was tested and found to be non-defective. The vehicle was taken to AutoZone, where a mechanic diagnosed and determined that the alternator had failed. The vehicle was not repaired. The contact found information of NHTSA Campaign Number: 18V161000 (Hybrid Propulsion System) and linked the recall to the failure. The dealer was contacted and informed of the failure. The dealer c…”
NHTSA complaint #11669102, 2025

Latches/Locks/Linkages 1

“The contact owns a 2017 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V594000 (Latches/Locks/Linkages) however, the part to do the recall repair was not yet available. The local dealer was contacted and determined that the next available appointment would be in February 2024. 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 and confirmed that there were a lot of customers in front of him and the dealer would not be able to get to the vehicle until February 2024. The…”
NHTSA complaint #11552074, 2023

Visibility 1

“TL* THE CONTACT OWNS A 2017 KIA OPTIMA. THE CONTACT STATED THAT THE SUN ROOF EXPLODED WITHOUT IMPACT WHILE PARKED IN THE GARAGE. THE CONTACT STATED THAT WHILE IN THE HOUSE SHE HEARD AN ABNORMALLY LOUD BOOMING SOUND. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 37,300.”
NHTSA complaint #11375889, 2020

Wheels 1

“WITHIN A WEEK BOTH FRONT AND REAR PASSENGER WHEEL SPEED SENSORS FAILED. RESULTING IN A PROMPT ON DASH AT START UP AND CONSISTENTLY DISPLAYED FOR AEB SYSTEM SERVICE AFTER VEHICLES AUTOMATIC SYSTEM SCAN AN SEE DIFFERENCE IN MILEAGE IN ATTACHED PICTURES. KIA TECHNICIAN SAID IT IS A COMMON ISSUE AND SEES ATLEAST 4-5 VEHICLES PER WEEK WITH THIS PART FAILURE.”
NHTSA complaint #11365946, 2020