2019 KIA Optima

Recalls

1 recall names the 2019 KIA Optima. Newest first.

• Forward collision avoidance › Automatic emergency braking

  Jul 19, 2019NHTSA 19V53900011,423 vehicles

  Kia Motors America (Kia) is recalling certain 2019 Optima vehicles equipped with Gamma 1.6L Turbo-GDI or Theta II 2.0L Turbo-GDI engines. A software error in the Forward Collision-Avoidance Assist (FCA) system may cause the braking assist function to not engage when a stationary vehicle is detected.

  Risk and remedy

  Risk

  Improper intervention of the Forward Collision-Avoidance Assist can increase the risk of a crash.

  Remedy

  Kia will notify owners, and dealers will update the FCA software, free of charge. The recall began August 27, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC179.

  Full recall details →

Owner complaints

What owners report most

1. Engine92
2. Forward collision avoidance44
3. Unknown or other43
4. Electrical system23
5. Service brakes18
6. Power train17
7. Fuel/propulsion system17
8. Structure14
9. Air bags12
10. Vehicle speed control10

Latest complaints

• Oct 9, 2026ILFire
  Engine · Unknown or other

  Car smelled of what seemed like motor oil while driving. Parked, saw white smoke, and confirmed an engine fire. I was clearly in life threatening danger, especially with a full tank of gas. Fire developed rapidly into a roaring blaze. Entire front of car melted. Car is currently being investigated by manufacturer and cause is unknown. No warning lamps illuminated.

• Oct 8, 2026FL
  Engine

  Vehicle shut off while driving at 40mph, engine seized ,will not crank .suspected conecting rod bearing failure under safety recall sc200, I call KIA 18003334542 denied recall repair and bearing clearance test stating vehicle IS rebuilt title. Federal safety recall cannot be denied due to rebuilt title per nhtsa .requesting recall remedy.

• Sep 30, 2026NV
  Fuel/propulsion system
  On XXX, Towbin Kia Service (Henderson, NV) officially diagnosed my 2019 Kia Optima (VIN: [XXX], Mileage: 118,325) with a critical component failure: "LOW PRESSURE FUEL PUMP IS LEAKING FROM TOP HAT" (Invoice #XXX). Despite documenting a severe, volatile raw fuel leak that presents an immediate fire…

  On XXX, Towbin Kia Service (Henderson, NV) officially diagnosed my 2019 Kia Optima (VIN: [XXX], Mileage: 118,325) with a critical component failure: "LOW PRESSURE FUEL PUMP IS LEAKING FROM TOP HAT" (Invoice #XXX). Despite documenting a severe, volatile raw fuel leak that presents an immediate fire and explosion hazard, the dealership refused to keep the vehicle. They explicitly released this active safety hazard back to me. The service department even arranged a third-party Lyft ride to transport my children and me to the dealership to pick up the leaking car and force us to drive it home. The vehicle is currently parked outside my residence, actively leaking raw fuel and filling the cabin with toxic gas fumes. It is entirely un-driveable and a public safety threat. Kia Corporate must immediately bypass standard dealership timelines, authorize a flatbed tow to retrieve this fire hazard, and directly provide an emergency corporate rental vehicle line (Enterprise/Hertz) for my family's safety today. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• Sep 29, 2026AR
  Engine
  The vehicle experienced a sudden and severe loss of engine power while being driven on the interstate at highway speeds. The vehicle lost the ability to accelerate normally beyond approximately 60 mph, the Check Engine Light began flashing rapidly, and the vehicle entered “Limp Home Mode.” This…

  The vehicle experienced a sudden and severe loss of engine power while being driven on the interstate at highway speeds. The vehicle lost the ability to accelerate normally beyond approximately 60 mph, the Check Engine Light began flashing rapidly, and the vehicle entered “Limp Home Mode.” This sudden loss of power occurred in heavy traffic and created an immediate risk of a high-speed rear-end collision. The vehicle was subsequently inspected by an authorized Kia dealership service center. Diagnostic testing confirmed DTC P1326 (Knock Sensor Detection System). The dealership performed the manufacturer’s Bearing Clearance Test (BCT), and the dealership paperwork documents a “NO PASS BCT” result. The dealership paperwork also documents that Service Campaign SC340 (Theta II 2.4L GDI ECM Software Upgrade) was performed on the vehicle. Despite the documented P1326 condition and the manufacturer’s “NO PASS BCT” result, the dealership is refusing to provide the engine replacement as a covered repair and has instead quoted approximately $9,000 for the engine replacement. I am requesting that NHTSA review this matter because the vehicle experienced a sudden loss of power at highway speeds, followed by a documented “NO PASS BCT” result from the manufacturer’s diagnostic procedure. The vehicle remains an unresolved safety concern. I am also requesting review of whether Kia is properly applying the applicable P1326/BCT engine-replacement procedure and associated coverage to this vehicle. The vehicle and all diagnostic and service paperwork are available for inspection upon request.

• Sep 24, 2026KY
  Engine · Fuel/propulsion system · Visibility/wiper
  On December 26, 2023, this vehicle received a complete engine assembly replacement at an authorized dealership under a manufacturer warranty repair order. Following the engine overhaul, the vehicle developed a severe, raw gasoline smell entering the passenger cabin through the climate control AC…

  On December 26, 2023, this vehicle received a complete engine assembly replacement at an authorized dealership under a manufacturer warranty repair order. Following the engine overhaul, the vehicle developed a severe, raw gasoline smell entering the passenger cabin through the climate control AC vents while sitting at an idle.The vehicle was brought back to Kia Store East on September 10, 2026, specifically to report this volatile safety issue. On September 17, 2026, the dealership technician explicitly duplicated and confirmed the raw fuel odor coming from the engine area in writing. Despite confirming the gasoline smell, the dealership is refusing to perform a manual high-pressure fuel system pressure-drop test to isolate the physical vapor leak. Instead, they have listed a high-pressure Fuel Pipe Assembly (Part # 35305 2GGA0) on a customer-pay estimate paired with an unrelated $1,819.12 timing cover oil seal repair.The dealership is claiming the failure is out of warranty and is holding the vehicle while forcing daily rental car fees onto me, refusing to isolate the active fuel leak unless I authorize the out-of-pocket repair. The vehicle currently sits un-repaired at the dealership as an active cabin fire and occupant chemical exposure hazard that the manufacturer and dealer refuse to properly diagnose or cover under repair workmanship guidelines.

• Sep 23, 2026PA
  Unknown or other
  My car was parked when my Kia Optima Panoramic sunroof exploded. It was between 8:00-8:30 a.m. Friday XXX. It sounded like an explosion. I was sleeping and the explosion woke me up. The sunroof was closed and the car was parked. We r not aware of anything coming in contact with the sunroof.…

  My car was parked when my Kia Optima Panoramic sunroof exploded. It was between 8:00-8:30 a.m. Friday XXX. It sounded like an explosion. I was sleeping and the explosion woke me up. The sunroof was closed and the car was parked. We r not aware of anything coming in contact with the sunroof. Actually the sunroof exploded from inside the car. The broken glass was pointed upwards. I’m concerned that this is a serious hazard if it occurs while I was driving it would have caused a serious accident or even a death. I notified KIA Customer Care Center. XXX Case # XXX. I also sent them a letter concerning the event with photos. I have found information that other reported KIA panoramic sunroof failures and concerned that this may be part of a bigger problem. Customer Care rep [XXX] told me to take the car to a dealer. Cannot see me for 3 weeks and charge $209.99. Called customer care again talked to Risha, told me not to take to dealer and not pay anything. Then wait for someone to get back to me. That was XXX. If I haven’t had any contact from Kia I’m supposed to call back XXX. Still waiting. I am asking NHTSA to document this incident and review whether there is a safety- related defect or pattern involving panoramic sunroofs on KIA vehicles, including the 2019 KIA OPTIMA. Car is 7 years olds an 72,400 mi. The warranty is 5yrs -60,000. Please include this complaint in NHTSA’s records concerning the 2019 Kia Optima and Panoramic sunroof failures. I authorized NHTSA to share my complaint and identifying vehicle information with Kia if that is necessary to investigate the issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• Sep 8, 2026FL
  Electrical system · Engine · Power train
  While driving, my vehicle suddenly began shuddering and shaking. The vehicle lost power and would not accelerate properly. I had to press the brake pedal unusually hard. After parking, the vehicle would not move properly in reverse or drive. I turned the vehicle off and restarted it, and it moved…

  While driving, my vehicle suddenly began shuddering and shaking. The vehicle lost power and would not accelerate properly. I had to press the brake pedal unusually hard. After parking, the vehicle would not move properly in reverse or drive. I turned the vehicle off and restarted it, and it moved only a short distance before shuddering again and losing power. The engine was making a loud buzzing or scooter-like sound. The vehicle became undrivable and had to be parked. I am concerned about a potential safety defect involving sudden loss of power while driving.

• Aug 18, 2026FL200,000 mi
  Engine

  The contact owns a 2019 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle stalled. No warning lights were illuminated. The vehicle was towed to a dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 200,000.

• Jul 21, 2026FL146,000 mi
  Engine
  The contact owns a 2019 Kia Optima. The contact stated that while driving at various speeds on two occasions, the vehicle lost power with the check engine warning light illuminated. The vehicle was driven over to the side of the road and then towed to the dealer twice; however, the failure was not…

  The contact owns a 2019 Kia Optima. The contact stated that while driving at various speeds on two occasions, the vehicle lost power with the check engine warning light illuminated. The vehicle was driven over to the side of the road and then towed to the dealer twice; however, the failure was not duplicated on the first visit. During the second visit, the vehicle was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 146,000.

• Jul 18, 2026NV
  Fuel/propulsion system

  Strong smell of gasoline from the rear of the vehicle started around 60,000 miles . Car dealership said it’s normal but I don’t smell other cars like this

• Jul 16, 2026KY
  Forward collision avoidance › Warnings · Lane departure › Blind spot detection · Unknown or other

  Blind spot forward collision detection lane departure warning rear cross traffic warning

• Jul 15, 2026KY
  Forward collision avoidance › Warnings · Lane departure › Warning · Unknown or other

  Unknown was just driving to go to my husband to work and it came on when I was coming back home and when I went to pick my husband up from work and was stopped at a stop sign the lights came back on

• Jul 6, 2026OH
  Engine

  Oil is needing added on a weekly basis to keep up with how much the engine is burning, Spark Plugs and Coils have been changed excessively, the dealership says we may end up being covered by a recall but the engine needs to completely fail first.

• Jun 30, 2026FL
  Unknown or other
  The paint on my car is delaminating. There are bubbles throughout the car and a few huge bubbles have popped and now the bare body is visible. I have called Kia corporate and they have denied my request to repaint the car. They are telling me that the is a three-year warranty on the paint. My car…

  The paint on my car is delaminating. There are bubbles throughout the car and a few huge bubbles have popped and now the bare body is visible. I have called Kia corporate and they have denied my request to repaint the car. They are telling me that the is a three-year warranty on the paint. My car is only seven years old, and the paint should not peeling/bubbling. I have taken my car to a collision center, and they believe it is caused by a defective manufacturer paint. After looking online, it is a nationwide chronic problem with snow white pearl. Kia is totally aware of this and doesn't want to address the problem. I do know there are many lawsuits against Kia for this particular problem. I am seeking help to get this resolved. Pictures attached.

• Jun 9, 2026GA
  Forward collision avoidance › Automatic emergency braking · Forward collision avoidance › Warnings · Lane departure › Blind spot detection

  I was driving down the highway when I kinda noticed speed changed. ABS lights, foreword collision light, and rear end lights, so I turned around went back home. I rarely drive my car and I never had any problems with it. I purshased it brand new.

• Jun 8, 2026TX
  Fuel/propulsion system · Power train · Vehicle speed control
  I am reporting a recurring safety hazard involving my 2019 Kia Optima following a repair for diagnostic code P064A (Fuel Pump Control Module). Despite the dealership attempting to repair the fuel system, the vehicle remains in a 'limp mode' state. While driving, the vehicle began shaking violently…

  I am reporting a recurring safety hazard involving my 2019 Kia Optima following a repair for diagnostic code P064A (Fuel Pump Control Module). Despite the dealership attempting to repair the fuel system, the vehicle remains in a 'limp mode' state. While driving, the vehicle began shaking violently and lost significant power, refusing to accelerate above 50 mph. This creates an immediate safety risk, as the vehicle cannot maintain highway speeds or safely merge, increasing the danger of a rear-end collision. The P064A code and subsequent 'limp mode' symptoms persist even after professional service. I am concerned that the existing Kia warranty extensions (such as WTY028 for the low-pressure fuel pump) or current repair procedures are insufficient to resolve this underlying mechanical/electronic failure, leaving the vehicle unpredictable and hazardous to operate in traffic.

• Jun 5, 2026CA
  Engine

  Engine failure, metal leaking into oil which caused engine to fail

• May 6, 2026FL
  Exterior lighting
  The low beam headlight assembly failed on my 2019 Kia Optima LX with no prior warning, while the high beams and LED daytime running lights continue to function normally, indicating an isolated component failure within the assembly. Notably, the headlight assembly shows no physical damage…

  The low beam headlight assembly failed on my 2019 Kia Optima LX with no prior warning, while the high beams and LED daytime running lights continue to function normally, indicating an isolated component failure within the assembly. Notably, the headlight assembly shows no physical damage whatsoever, and both independent licensed repair facilities that inspected the vehicle were unable to identify or repair any specific failed component — both independently concluded that a full assembly replacement is necessary. The fact that no specific component could be identified as the cause, combined with the absence of any physical damage, suggests this may be an internal failure not consistent with typical wear and tear. Prior to complete failure, the low beam would intermittently illuminate and then cut off unexpectedly during normal operation, which was the only symptom present before the headlight stopped functioning entirely. This creates a genuine safety concern as low beams are the primary source of nighttime illumination and cannot be substituted with high beams in normal traffic conditions. The failure occurred suddenly during normal nighttime driving and could not be fixed with bulb or pigtail replacement as both were in good condition. The vehicle and component remain available for inspection upon request.

• May 1, 2026MIFire
  Electrical system · Engine
  Drove roughly an hour from Roseville MI to Temperance MI. Car was fine. No issues on the drive. Gauges were all fine. Got to my friend’s house and took my stuff inside. Came back out immediately and saw dark smoke now coming from the hood. Attempted to open, but couldn't unlatch the hood after it…

  Drove roughly an hour from Roseville MI to Temperance MI. Car was fine. No issues on the drive. Gauges were all fine. Got to my friend’s house and took my stuff inside. Came back out immediately and saw dark smoke now coming from the hood. Attempted to open, but couldn't unlatch the hood after it was popped. Saw flames and called 911. Entire car burned down to the back seats. Car seat, Reading glasses and personal items destroyed. Fire fighters put it out and police took report. KIA after review states they dont know why it happened. Also has taken forever and not offered to compensate me in any way shape or form. Received their “findings” a day ago, April 30. Date of fire was Feb 11th 2026.

• Apr 9, 2026OK133,000 miFire
  Engine
  The contact owned a 2019 Kia Optima. The contact stated that while her daughter was driving at 60 MPH, she noticed there was smoke emerging from the engine. The driver pulled over safely. but was alerted by a good Samaritan who ran across four lanes of traffic to extinguish the fire with a fire…

  The contact owned a 2019 Kia Optima. The contact stated that while her daughter was driving at 60 MPH, she noticed there was smoke emerging from the engine. The driver pulled over safely. but was alerted by a good Samaritan who ran across four lanes of traffic to extinguish the fire with a fire extinguisher to no avail. The fire department was on the scene to eventually extinguish the fire. There were no reported injuries. The vehicle was towed to a towing lot. The local dealer was called, but there was no response. The contact called another local dealer: 4747 S Yale Ave, Tulsa, OK 74135, but there was no answer. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was approximately 133,000. The vehicle was deemed a total loss by the insurance company.

• Mar 31, 2026NY
  Engine · Fuel/propulsion system · Unknown or other

  Even after regular oil changes car requires an additional 4 bottles of oil every 2 weeks. Now the car is jumping and having a misfire.

• Mar 30, 2026CA
  Electrical system · Engine · Power train
  The engine of vehicle repeatedly failed, causing the vehicle to stall while driving, which posed a serious risk to my safety and others on the road. The vehicle had approximately 65,000 miles and was maintained routinely and on schedule. The failure first occurred before November 18, 2025, when I…

  The engine of vehicle repeatedly failed, causing the vehicle to stall while driving, which posed a serious risk to my safety and others on the road. The vehicle had approximately 65,000 miles and was maintained routinely and on schedule. The failure first occurred before November 18, 2025, when I reported stalling issues to Kia authorized service & parts. The vehicle was returned as “fixed” on December 12, 2025, but the engine stalled again during normal operation. The vehicle was returned to Kia authorized service & parts multiple times (December 12, December 18, December 23, January 9, January 12, 2026, and March 4, 2026), with repeated assurances that it had been repaired. Each time, the car continued to stall, including during a test drive at Subaru, demonstrating that the failure persisted despite repeated dealer intervention. The stalling created a significant hazard, as the car could lose power while on public roads, including highways, potentially leading to accidents. There were no consistent warning lights or messages prior to the engine stalling; the first symptom was intermittent loss of power while driving. The failure has been reproduced and observed by multiple service personnel at Kia authorized service & parts and by Subaru during the trade-in test drive. The component(s) causing the failure were inspected by Kia authorized service & parts staff, but no effective repair was made. Documentation of repair orders and dealer inspections is available for review.

• Mar 18, 2026CA
  Unknown or other

  Our car paint started peeling out of no where and very bad. I just found out that it is a manufacturing issue with the bonding of the paint.

• Mar 17, 2026PA
  Engine

  The car had a complete engine failure at 92,000 miles. I was the second owner so this was not covered by any warranties. Well serviced and maintained vehicle.

• Jan 29, 2026CA
  Engine · Power train
  The vehicle experienced a sudden engine failure one day after undergoing a manufacturer emissions/service campaign at an authorized dealership. Prior to service, the vehicle operated normally with no warning lights, knocking, or drivability issues. After the failure, the dealership denied coverage…

  The vehicle experienced a sudden engine failure one day after undergoing a manufacturer emissions/service campaign at an authorized dealership. Prior to service, the vehicle operated normally with no warning lights, knocking, or drivability issues. After the failure, the dealership denied coverage and declined to inspect the engine oil. The vehicle was towed for an independent inspection, which found metal shavings in the engine oil, indicating internal mechanical engine failure. The sudden failure created a safety risk due to unexpected loss of engine function. The issue has been confirmed by an independent service center and the vehicle remains available for inspection. No warning lamps or symptoms were present prior to the failure.

Defect investigations

NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.

• Loss of Motive Power

  DP22003Opened Sep 12, 2022Closed Dec 12, 2023
  The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles…

  The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing.  There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

• Electrical overstress

  EA19001Opened Apr 19, 2019Closed Sep 19, 2024Recall 20V024
  The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air…

  The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW.  The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications.  The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU.  In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment.  FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle.  Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW.  These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes.  An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time.   In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU.  This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners.  Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW.  The risk associated with the ASIC is equally shared among all OEMS involved in the investigation.  The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage.  There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation.  The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU.  If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC.  Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC.  All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled.  In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024.  With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11009492TECHNICAL SERVICE BULLETIN: HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) BLOWER MOTOR FUSE RELOCATION - This bulletin provides the procedure to relocate the Heating, Ventilation, and Air Conditioning (HVAC) blower motor 40-ampere fuse on some 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020 which may experience an inoperative blower motor due to a blown multi-fuse at position #3. The HVAC system provides cooling and heating to help maintain a comfortable environment inside the vehicle cabin. The blower motor provides primary airflow for the HVAC system. Extended use of the HVAC system at high fan speeds may cause damage to the multi-fuse terminals for the HVAC blower motor circuit, which can cause the blower motor to become inoperative, resulting in reduced heat and air conditioning.
• 11001594TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2303) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and 2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked with the use of the key fob.
• 11000787This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
• 10251973TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION: SIDE AIRBAG (SAB) INSPECTION ANDREPLACEMENT FOR DTC(S) B1380/B1384 (WTY036) - This bulletin provides information associated with the 'Warranty Extension Program' (WTY036) to diagnose and repair certain airbag warning light 'ON' conditions on 2019-2020MY Optima (JFa) vehicles produced from May 21, 2018 through June 23, 2020. The affected vehicles may exhibit an airbag warning light 'ON' with DTC B1380 and/or B1384 due to the front seat Side Airbag (SAB) connector experiencing higher than normal resistance. The warranty coverage for repairs related to the front seat SAB due to illumination of airbag warning light has been extended to 15 years/unlimited miles, starting from the date the vehicle was first put into service.
• 10251611TECHNICAL SERVICE BULLETIN: SIDE AIRBAG (SAB) INSPECTION AND REPLACEMENT FOR DTC(S) B1380/B1384 (WTY036) - This bulletin provides information associated with the 'Warranty Extension Program' (WTY036) to diagnose and repair certain airbag warning light 'ON' conditions on 2019-2020MY Optima (JFa) vehicles produced from May 21, 2018 through June 23, 2020. The affected vehicles may exhibit an airbag warning light 'ON' with DTC B1380 and/or B1384 due to the front seat Side Airbag (SAB) connector experiencing higher than normal resistance. The warranty coverage for repairs related to the front seat SAB due to illumination of the airbag warning light has been extended to 15 years / unlimited miles, starting from the date the vehicle was first put into service.
• 10250772WARRANTY EXTENSION: REIMBURSEMENT FORM (WTY036) - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension program launch.
• 10250771WARRANTY EXTENSION: QUESTION AND ANSWER (WTY036) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY036.
• 10250770WARRANTY EXTENSION: OWNER NOTIFICATION (WTY036) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the illumination of the Airbag Warning Light in 2019-2020 MY Optima vehicles from 5 years / 60,000 miles to 15 years / unlimited miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Airbag Warning Light ON condition.
• 10250769WARRANTY EXTENSION: DEALER PARTS AND SERVICE MANAGER MEMO (WTY036) - This document is the announcement to the dealer Parts and Service Managers that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the illumination of the Airbag Warning Light in 2019-2020 MY Optima vehicles from 5 years / 60,000 miles to 15 years / unlimited miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Airbag Warning Light ON condition.
• 10250768WARRANTY EXTENSION: DEALER PRINCIPAL MEMO (WTY036) - This document is the announcement to the dealer principals that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the illumination of the Airbag Warning Light in 2019-2020 MY Optima vehicles from 5 years / 60,000 miles to 15 years / unlimited miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Airbag Warning Light ON condition.
• 10249001TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT (PI1805Y/Z) - This bulletin provides information related to the Technical Service Bulletin previously published in (PI1805) titled "Knock Sensor Detection System - ECU Logic Improvement" for certain 2019MY Optima (JFa), Sorento (UMa) and Sportage (QL) vehicles equipped with a 2.4L GDI or 2.0L T-GDI engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
• 10240563TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: KIA GENUINE REMOTE START CONTROL MODULE UPGRADE FOR ANTI-THEFT LOGIC COMPATIBILITY (CS2310) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to update the software logic in the Kia Genuine Remote Start Control Module on certain 2012-2022MY model vehicles listed on page 7. Vehicles equipped with a Kia Genuine Remote Start feature and have had the Anti-Theft software logic (CS230*) applied to the Integrated Body Control Unit (IBU) or Body Control Module (BCM) may experience five (5) inadvertent honks after starting the vehicle with the remote start feature.
• 10240262CUSTOMER SATISFACTION CAMPAIGN: OWNER RE-NOTIFICATION - This document is the owner re-notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject of a break-in and theft attempt without the key. This software upgrade will be available to the customer free of charge for eighteen (18) months from the date of the original letter. When the software upgrade is complete, Kia will also provide the customer with window stickers that can be applied to the vehicle to discourage a break-in.
• 10239713TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2303) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and 2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
• 10239108TECHNICAL SERVICE BULLETIN CUSTOMER SATISFACTION: KIA GENUINE REMOTE START CONTROL MODULE UPGRADE FOR ANTI-THEFT LOGIC COMPATIBILITY (CS2310) - This bulletin provides information to update the software logic in the Kia Genuine Remote Start Control Module on certain 2012-2022MY model vehicles listed on page 6. Vehicles equipped with a Kia Genuine Remote Start feature and have had the Anti-Theft software logic (CS230*) applied to the Integrated Body Control Unit (IBU) or Body Control Module (BCM) may experience five (5) inadvertent honks after starting the vehicle with the remote start feature.
• 10236643TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2303) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and 2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
• 10232943TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2303) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and 2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation.
• 10232178CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject of a break-in and theft attempt without the key. This software upgrade will be available to the customer free of charge for eighteen (18) months from the date of this letter. When the software upgrade is complete, Kia will also provide the customer with window stickers that can be applied to your vehicle to discourage a break-in.
• 10232113TECHNICAL SERVICE BULLETIN CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2303) - This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2015MY Optima (TF), 2012-2015MY Optima (QF) and 2016-2020MY Optima (JF, JFa) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation.
• 10230492TECHNICAL SERVICE BULLETIN: SERVICE ACTION: BMS/OPU/MCU LOGIC IMPROVEMENT (SA411) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to improve the logic of the Battery Management System (BMS), Oil Pump Control Unit (OPU) and Motor Control Unit (MCU) on some 2017-2019MY Optima (JF P/HEV) vehicles, produced from August 25, 2016 through September 13, 2018 (refer to page 8) in order to improve the BMS diagnosis logic, OPU judgment logic for DTC P1B77 (High Voltage Battery Pre-Charging fault) and MCU communication logic.
• 10226555TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles in the chart starting on page 2.
• 10225574TECHNICAL SERVICE BULLETIN: FUEL PUMP FILTER INSPECTION/REPLACEMENT - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information associated with the 'Warranty Extension Program' (WTY028) to inspect and, if necessary, replace the fuel pump filter assembly on 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020, for repairs that may be necessary to address a low-pressure fuel pump failure to be covered for 15 years / 150,000 miles, whichever comes first starting from the date the vehicle was first put into service. The affected vehicles may exhibit an intermittent reduction in engine power, contain an active or stored DTC P1233 and/or exhibit a 'No Start' condition due to a cracked fuel pump filter housing.
• 10225572TECHNICAL SERVICE BULLETIN: FUEL PUMP FILTER INSPECTION/REPLACEMENT - This bulletin provides information associated with the 'Warranty Extension Program' (WTY028) to inspect and, if necessary, replace the fuel pump filter assembly on 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020, for repairs that may be necessary to address a low-pressure fuel pump failure to be covered for 15 years / 150,000 miles, whichever comes first starting from the date the vehicle was first put into service. The affected vehicles may exhibit an intermittent reduction in engine power, contain an active or stored DTC P1233 and/or exhibit a 'No Start' condition due to a cracked fuel pump filter housing.
• 10220346TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area.This bulletin provides information on setting the "Service Interval Reminder" feature available on most 2014-2023MY Kia vehicles (refer to model list on page 2). If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance. Refer to TSB ENG241 for 2023MY~ vehicles equipped with the Oil Life Management System (OLMS) feature not included in table on page 2.
• 10219692TECHNICAL SERVICE BULLETIN: BEARING CLEARANCE TESTER (BCT) PROCEDURES - This bulletin provides information regarding test procedure of the Bearing Clearance Tester (BCT) Special Service Tool (SST). The SST comes pre-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
• 10217892TECHNICAL SERVICE BULLETIN: SERVICE REMINDER SETTING RESET PROCEDURE - This bulletin provides the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster. The KDS is required to change the setting from "Workshop" to "Customer Mode."
• 10217678VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA 2.0L T-GDI ULEV LOGIC IMPROVEMENT FOR EMISSIONS (SC205) - This bulletin provides the procedure to update the emissions-related logic of the Engine Control Unit (ECU) on some 2016-2020MY Optima (JFa) ULEV vehicles, equipped with 2.0L T-GDI Theta engines, produced from April 21, 2015 through May 22, 2020, in order to improve fuel quantity learning to decrease the deterioration of the rear Oxygen Sensor.
• 10217677VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to update the software programming on your vehicle's Engine Control Module (SC205).
• 10217676Sc205_poc: proof of correction card
• 10217675Sc205_stkr: voluntary emissions service campaign completion sticker
• 10217674VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign (SC205).
• 10217673VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Voluntary Emissions Service Campaign on 2016-2020 MY Kia Optima vehicles equipped with the 2.0L Turbo-GDI engine to update the emission related logic of the Engine Control Module "ECM" with an improved version to ensure compliance with emissions regulations.
• 10217672VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Emissions Service Campaign on 2016-2020 MY Kia Optima vehicles equipped with the 2.0L Turbo-GDI engine to update the emission related logic of the Engine Control Module "ECM" with an improved version to ensure compliance with emissions regulations.
• 10216907WARRANTY EXTENSION: REIMBURSEMENT FORM - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension program launch.
• 10216906WARRANTY EXTENSION: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension (WTY028).
• 10216905WARRANTY EXTENSION: OWNER NOTIFICATION - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage for repairs related to low-pressure fuel pump failure in 2016-2020 MY Optima vehicles manufactured at a Kia assembly plant in the U.S. from 5 years / 60,000 miles to 15 years / 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
• 10216904WARRANTY EXTENSION: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is extending the New Vehicle Limited Warranty coverage for repairs related to low-pressure fuel pump failure for 2016-2020 MY Optima vehicles manufactured at a Kia assembly plant in the U.S. from 5 years/60,000 miles to 15 years/ 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address certain concerns related to the potential failure of the low-pressure fuel pump.
• 10216903WARRANTY EXTENSION: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is extending the New Vehicle Limited Warranty coverage for repairs related to low-pressure fuel pump failure for 2016-2020 MY Optima vehicles manufactured at a Kia assembly plant in the U.S. from 5 years/60,000 miles to 15 years/ 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address certain concerns related to the potential failure of the low-pressure fuel pump.
• 10209438TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information on diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
• 10206642TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information on diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.

Every KIA Optima model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.