2016 KIA Optima
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
Have the VIN?
Vehicles › KIA › Optima › 2016
These records cover every 2016 KIA Optima. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
5 recalls name the 2016 KIA Optima. Newest first.
Kia America, Inc. (Kia) is recalling certain 2016-2017 Rio, 2016-2018 Optima, 2017-2018 Optima Hybrid and Optima Plug-in Hybrid vehicles. The trunk latch base may crack, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk…
Risk and remedy
Risk
A person inside the trunk compartment may become trapped, increasing their risk of injury.
Remedy
Dealers will replace the trunk latch base subassembly, free of charge. Owner notification letters were mailed October 19, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC278.
Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pipe that connects to the fuel pump outlet may have been…
Risk and remedy
Risk
A fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy
Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC172.
Kia Motors America (Kia) has recalled one 2016 Optima vehicle. In this vehicle, the end seal for the driver's frontal air bag inflator may not have been properly installed, possibly resulting in reduced inflation of the frontal air bag in the event of a crash.
Risk and remedy
Risk
In the event of a crash, an air bag that does not inflate fully increases the risk of injury.
Remedy
The affected vehicle was remedied on January 10, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC143.
Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 13, 2015, to April 23, 2016 and equipped with a 2.4l engine. The right front axle driveshaft may crack and fail.
Risk and remedy
Risk
If the driveshaft cracks and separates from the vehicle, it will not be able to move forward. Additionally, if the parking brake is not applied upon exiting the vehicle, the vehicle may roll. Either scenario can increase the risk of a crash.
Remedy
Kia will notify owners, and dealers will replace the front axle driveshaft, free of charge. The recall began November 2016. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC139.
Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 10, 2015, to February 12, 2016. In these vehicles, a chemical enhancer required for the for the second stage deployment of the driver's frontal air bag was not loaded, resulting in the second stage not deploying in necessitating crashes.
Risk and remedy
Risk
If the second stage air bag does not deploy it increases the risk of injury or death.
Remedy
Kia will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began on May 6, 2016. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC131.
Owner complaints
760 complaints27 involved a crash20 involved a fire21 injuries1 deaths
What owners report most
Latest complaints
- Air bags · Structure › Body
Component: Power Window / Door Description: All four power window regulators failed on my 2016 Kia Optima SXL within 16 months - from June 2025-Oct 2026. The failure mode is identical on all four doors: the plastic drum gear in the regulator separates or breaks, causing the window glass to drop…
Component: Power Window / Door Description: All four power window regulators failed on my 2016 Kia Optima SXL within 16 months - from June 2025-Oct 2026. The failure mode is identical on all four doors: the plastic drum gear in the regulator separates or breaks, causing the window glass to drop into the door and become completely inoperable. The vehicle had 113,867 miles on it at the time of the first failure. This is a known design defect, not wear-and-tear. Kia issued Technical Service Bulletin BOD300 (March 2021) specifically addressing "Window Regulator Drum Gear Replacement" for 2016-2017MY Optima (JFa) vehicles produced September 1, 2015 through July 31, 2016. The bulletin confirms the drum gear separates or breaks. Despite this, Kia has not issued a safety recall. Safety risk: In a collision, intact side windows are an occupant ejection restraint. A window that has fallen into the door removes that protection and increases the risk of occupant ejection. Side curtain airbags deploy through the window frame (FMVSS 208). A window that is detached or lowered can interfere with proper airbag deployment, negating a Federal Motor Vehicle Safety Standard protection. In an emergency (fire, submersion), the driver and passengers cannot lower a window to create an escape path. Evidence of systemic defect: All four regulators failed (not one or two), within a short timeframe, demonstrating a design-level failure rather than isolated component wear. Kia's own TSB BOD300 confirms the root cause (drum gear separation/breakage). This complaint is filed in connection with existing NHTSA investigations PE21004 and EA22002 regarding this exact defect. I paid $3,734.64 out of pocket to have all four regulators replaced. I opted out of the Le Beau v. Kia America class action settlement and retain my individual claims. I am requesting that NHTSA evaluate this as a safety defect warranting a recall.
- Visibility/wiper
Concerning my Optima KIA's OEM front windshield. At certain times of the day when the sunlight is shining on a certain angle it is difficult to see through the windshield due to the glare which creates a visual impairment. There were a quite a few instance's where I almost got into serious…
Concerning my Optima KIA's OEM front windshield. At certain times of the day when the sunlight is shining on a certain angle it is difficult to see through the windshield due to the glare which creates a visual impairment. There were a quite a few instance's where I almost got into serious accidents. With my observation the glass looks like there are thousands of microscopic pits like a light sandblasting embedded within the lamination and not the surface of the glass. It seems prominent at night also. This seems like a manufacture defect. This puts a safety risk for me and others. The dealer and manufacture will not do anything about it do to out of warranty. This appeared about a year ago and has gotten worse.
- Engine · Power train
Severe engine defect (Theta II 2.4L GDI). Sudden total loss of power, metallic knocking, severe oil consumption, and imminent catastrophic failure while driving, creating a high safety risk. Vehicle is currently out of service in [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Electrical system
I am reporting a serious safety concern involving my 2016 Kia Optima, purchased from CarMax in 2024 and financed through CarMax Auto Finance. On or about October 5, 2026, I returned to my parked vehicle and discovered extensive black soot/smoke residue throughout the interior. Wiring and interior…
I am reporting a serious safety concern involving my 2016 Kia Optima, purchased from CarMax in 2024 and financed through CarMax Auto Finance. On or about October 5, 2026, I returned to my parked vehicle and discovered extensive black soot/smoke residue throughout the interior. Wiring and interior components appeared melted or burned. The vehicle had not been involved in a collision. Based on the damage, I believe an electrical or wiring failure may have caused the fire, although the exact cause has not yet been confirmed. The vehicle was inspected by police and the tow operator, and it was determined to be a total loss. An insurance claim has been filed, and the vehicle should be available for inspection if requested. This vehicle also had a significant history of mechanical problems. Since shortly after I purchased it, it experienced severe oil consumption/oil loss, requiring multiple visits to CarMax and multiple 1,000-mile oil-consumption tests. I also experienced repeated spark plug and coil pack problems requiring repairs/replacements. The exact component that failed is currently UNKNOWN. I have not yet had Kia inspect the vehicle or confirm the cause of the fire. This incident created a serious safety risk because the vehicle appears to have caught fire while parked. If this had occurred while I was driving or while my children were inside the vehicle, the fire could have caused serious injury or death. I do not recall receiving a specific warning message immediately before discovering the damage. The vehicle did, however, have its history of ongoing mechanical problems described above. I am requesting that NHTSA investigate whether an electrical, wiring, or other safety defect could have caused this vehicle fire and whether other Kia Optima owners may be at risk.
- Electrical system
3 times windows different ones has stopped rolling up/down. 3 motors purchased and installed.
- Engine · Fuel system, gasoline
The contact owns a 2016 Kia Optima. The contact stated that while driving 25 MPH, the vehicle shut off without warning. Soon after the failure, the engine caught fire; however, the fire dissipated independently. The insurance agent was contacted and arrived at the scene to inspect the vehicle. The…
The contact owns a 2016 Kia Optima. The contact stated that while driving 25 MPH, the vehicle shut off without warning. Soon after the failure, the engine caught fire; however, the fire dissipated independently. The insurance agent was contacted and arrived at the scene to inspect the vehicle. The contact was initially informed that the vehicle was safe to drive; however, the engine failed to start after several attempts. Due to the failure, the vehicle was towed to a dealer where a mechanic discovered that the knock sensor was inoperable and had caused the fire. The contact was informed that the vehicle was included in NHTSA Campaign Number: 18V907000 (Fuel System, Gasoline, Engine) and the vehicle was repaired under the recall. Nearly a month after the repair, the vehicle started consuming oil with the master warning light displayed. The vehicle was taken back to the dealer for an inspection; however, no fault was found with the vehicle. The manufacturer was notified of the failure, and the contact was referred to the dealer. After another inspection, the dealer agreed to replace the engine; however, the failure recurred after the repair.
- Electrical system · Exterior lighting · Power train
Vehicle was purchased in 2023. AC blower failure occurred for the first time in June 2024 and was repaired by PepBoys. On 4/2/2025 the ve3hicle had an active recall event when the engine seized on the highway because of a faulty oil pump/filter, Engine was replaced 4/17/2025 under that recall. Kia…
Vehicle was purchased in 2023. AC blower failure occurred for the first time in June 2024 and was repaired by PepBoys. On 4/2/2025 the ve3hicle had an active recall event when the engine seized on the highway because of a faulty oil pump/filter, Engine was replaced 4/17/2025 under that recall. Kia advised at the time that the wiring harness should be replaced due to electrical issues at the time but said that there was no recall for that work. At the time, there were no electrical failures of steering, brakes, all power etc. Nor did we know that those were a possibility. The wiring harness quote was $7,000, over the cost of the vehicle. It was decided to continue repairing the electrical issues as they came up, it was assumed that the fuses would blow before there because a safety or total vehicle failure, as automobiles are designed that way. 8/4/2026 the vehicle experienced a complete and total loss of power resulting in a traffic crash into another vehicle as the brakes felt like you were trying to push a wall rather than a pedal. There was minimal physical damage to the other car and the kia, the other driver got my husband's insurance information and then drove off. The car did startup after ~30 minutes or so and was driven home, but taken to the Kia dealership the next day. It was said that the blower motor overheated and melted a portion of the electrical junction box under the hood and that it was unsafe and dangerous to drive. Kia said that there were no active recalls for this work. NHTSA SC351 seems very similar to this issue that has plagued this car since the beginning. We would ask that Kia incorporate this vehicle and others outside of the year/model ranges in SC351 that have similar failure mechanisms as this seems common.
- Electrical system · Engine · Service brakes
While driving at highway speeds on the freeway in San Diego, the engine of my 2016 Kia Optima catastrophically seized without warning. I instantly lost all power steering, brake assist, and electrical power, creating an immediate life-threatening emergency. The vehicle was towed to a Kia dealer.…
While driving at highway speeds on the freeway in San Diego, the engine of my 2016 Kia Optima catastrophically seized without warning. I instantly lost all power steering, brake assist, and electrical power, creating an immediate life-threatening emergency. The vehicle was towed to a Kia dealer. Corporate Techline and the dealership are refusing to perform the mandated settlement rod bearing test and are falsifying paperwork to deny the safety remedy.
- Electrical system
Blower motor is drawing excessive electricity, which in turn burns the fuse and junction pin, which in turn can start a fire in the car. Kia of Irvine suggested redoing all electrical wiring in the car, but that will not solve the issue. As soon as you turn on the AC, the blower motor will use so…
Blower motor is drawing excessive electricity, which in turn burns the fuse and junction pin, which in turn can start a fire in the car. Kia of Irvine suggested redoing all electrical wiring in the car, but that will not solve the issue. As soon as you turn on the AC, the blower motor will use so much electricity and amperage, so the blower motor fuse and junction pins on the fuse box starting to burn. Wanting to charge almost $7000 to fix this issue, which is double the price value of the car, and risking to end up in this situation again, as soon as you turn on the AC, does not make sense. KIA should do recall on this model and fix the root cause, which is excessive electricity and amperage usage by the blower motor.
- Visibility/wiper
Window falls into the door. The rear two windows have been repaired 3 times. They are currently both broken again along with the front drivers side. I currently have three windows being help up by tape. They are taped to the frame of the door to stop the window from falling into the door. I don't…
Window falls into the door. The rear two windows have been repaired 3 times. They are currently both broken again along with the front drivers side. I currently have three windows being help up by tape. They are taped to the frame of the door to stop the window from falling into the door. I don't know why this wasn't a recall. I see there is a TSB BOD300. The dealership repaired once but never informed me about the known defect.
- Engine · Power train
The engine assembly completely seized and the vehicle is currently stored at an independent repair shop . While traveling at high speed on Interstate 4 on July 24, 2026, the vehicle suffered a sudden, catastrophic loss of power and stalled in live traffic, creating an immediate threat of a high…
The engine assembly completely seized and the vehicle is currently stored at an independent repair shop . While traveling at high speed on Interstate 4 on July 24, 2026, the vehicle suffered a sudden, catastrophic loss of power and stalled in live traffic, creating an immediate threat of a high speed rear end collision. An independent service center officially confirmed the engine seizure after a dealership failed to perform an inspection during an eight hour wait, and no law enforcement or insurance inspections have occurred. Prior symptoms included severe, recurring oil loss requiring constant manual additions of oil between regular service intervals (most recently serviced in June 2026 at a kia dealership), and eventually the car completely shutoff on July24.
- Engine
engine failure, i was driving home from work and i went to accelerate from 0 to 20 miles and the car hesitated and didn't want to move. I took the car to the dealer three days later and it was confirmed that i needed a new engine. I was told by the dealership i was outside of my warranty but i just…
engine failure, i was driving home from work and i went to accelerate from 0 to 20 miles and the car hesitated and didn't want to move. I took the car to the dealer three days later and it was confirmed that i needed a new engine. I was told by the dealership i was outside of my warranty but i just found out that i was covered up to 120k miles. No lights came on at the time and there wasn't any prior warnings to this happening. I had just put oil into the car two days earlier as i know in between oil changes that i have to put oil into the car and or check the oil to see if it is low.
- Unknown or other
NHTSA Bulletin TSB BOD300 My KIA 2016 Optima Turbo has all four windows impacted by the defective gear. I've opened a case with KIA and it's case number 25563361. None of my windows roll up or down. This presents several very serious safety issues. The dealer has had my vehicle for over 2 weeks. Why has KIA not been forced to issue a recall on these defective gears?
- Unknown or other
Code was on and off for a cylinder 2 misfire was off at this point (intermittent misfire) ecl was off car stalled out at 3rpms while driving, tiny puff of smoke once came from between the air intake and the engine, and also no crank no start but car has power. I’ve kept up with the oil changes…
Code was on and off for a cylinder 2 misfire was off at this point (intermittent misfire) ecl was off car stalled out at 3rpms while driving, tiny puff of smoke once came from between the air intake and the engine, and also no crank no start but car has power. I’ve kept up with the oil changes every 3000 miles car had fluids in it and nothing looked bad all 4 spark plugs were burnt and i replaced them and still no success.
- Unknown or other
I had just stopped at stop sign and I turned right. My speed was approximately 40 mph and there was a LOUD POP. I immediately hit the brakes and had NO BRAKES. I got car off road and smoke was already coming from under hood. It caught fire immediately and burned up. Total loss . About 6 months…
I had just stopped at stop sign and I turned right. My speed was approximately 40 mph and there was a LOUD POP. I immediately hit the brakes and had NO BRAKES. I got car off road and smoke was already coming from under hood. It caught fire immediately and burned up. Total loss . About 6 months prior to it burning I had a good bit of front end work done on it with bearing issues. Also put a new set of tires at same time . The coils and plugs were changed often because it would misfire. I purchased car July 2025. All my documents were burnt also .
- Visibility
The contact owns a 2016 Kia Optima. The contact stated that while driving 10 MPH, the front driver’s and passenger’s side windows lowered unintendedly. Neither the dealer nor an independent was contacted. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed. The rear…
The contact owns a 2016 Kia Optima. The contact stated that while driving 10 MPH, the front driver’s and passenger’s side windows lowered unintendedly. Neither the dealer nor an independent was contacted. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed. The rear driver’s and passenger’s side windows were replaced, and the vehicle was repaired. The manufacturer was notified of the failure but offered no assistance since the VIN was not under recall. The failure mileage was 107,000.
- Engine · Fuel/propulsion system · Unknown or other
My 2016 Kia Optima equipped with the 2.4L DOHC I4 GDI engine began to experience progressive and severe oil consumption during the latter part of my ownership. The oil warning light began activating repeatedly, even after shortly getting the oil changed. Several certified mechanics and oil change…
My 2016 Kia Optima equipped with the 2.4L DOHC I4 GDI engine began to experience progressive and severe oil consumption during the latter part of my ownership. The oil warning light began activating repeatedly, even after shortly getting the oil changed. Several certified mechanics and oil change service stations told me this was an ongoing issue with this car and engine and that there was nothing I could do but monitor it and keep it filled. At their instruction, I monitored and had it changed more frequently, often topping it off at the oil change station and at home when needed. Approximately 2 weeks after an oil change upon putting the car in reverse it started to shake uncontrollably. The car was towed to a mechanic who stated I needed an engine. I then towed it to an authorized Kia franchise dealership where the technician documented the oil consumption complaint, confirmed a Cylinder 2 misfire code, performed a borescope inspection, and found the Cylinder 2 exhaust valve burnt with a chunk missing. Engine replacement was recommended by the Kia dealership technician. Prior to my purchase, the engine had already been replaced at approximately 80,000 miles under recall-related circumstances. The replacement engine installed by a Kia dealership subsequently failed, exhibiting symptoms consistent with the documented widespread defect affecting the 2.4L DOHC I4 GDI engine in 2016 Kia Optima vehicles, including severe oil consumption, cylinder misfire, and catastrophic internal engine damage confirmed via borescope at a Kia franchise dealership. Kia America denied the claim based solely on mileage despite the damage being confirmed by their franchise technician. My vehicle became unsafe to drive due to this engine instability shortly after starting before becoming fully inoperable. My vehicle has been non-operational for approximately 5 months. Kia has not provided a substantive written determination despite a formal written demand submitted in March 2026.
- Engine
the engine. I was at a stop sign when the car stop responding to me pressing the accelerator and would not go. Upon further inspection it was noted that my car had no oil in it. I am diligent in getting my oil changed every 3 months or 3,000 miles. My engine had "seized" and i am being advised to…
the engine. I was at a stop sign when the car stop responding to me pressing the accelerator and would not go. Upon further inspection it was noted that my car had no oil in it. I am diligent in getting my oil changed every 3 months or 3,000 miles. My engine had "seized" and i am being advised to purchase a new engine or purchase a new car. While trying to get my car to acclerate i was almost hit 4 times in a matter of 10 mins.
- Engine · Fuel/propulsion system · Unknown or other
The car returned P1326 and had multiple misfires and audible knocking, the dealers will indeed fight the already existing class action warranties. Was sent home and told to “drive the fuck out of it”, to which the car did not make it home and blew gasoline into my cabin while driving on the…
The car returned P1326 and had multiple misfires and audible knocking, the dealers will indeed fight the already existing class action warranties. Was sent home and told to “drive the fuck out of it”, to which the car did not make it home and blew gasoline into my cabin while driving on the highway. Almost passed out, and am still fighting Kia to actually address the defective rod bearings. I personally would fight tooth and nail over a 5 dollar problem, but this is something they do nationwide and can cause serious injury or death. If it weren’t a 200 LB man driving the gasoline shooting into the cabin would absolutely cause a knockout. To the time of this report they are still trying to disregard the rod bearing issue and send me home with fixes to problems caused consequentially.
- Engine · Service brakes, hydraulic · Vehicle speed control
The contact owned a 2016 KIA OPTIMA. The contact stated that while driving at 30 MPH occupied with her husband the contact heard a noise coming from the rear of the vehicle and smoke coming from the rear of the vehicle as you looked in the drive side rear view mirror and while depressing the brake…
The contact owned a 2016 KIA OPTIMA. The contact stated that while driving at 30 MPH occupied with her husband the contact heard a noise coming from the rear of the vehicle and smoke coming from the rear of the vehicle as you looked in the drive side rear view mirror and while depressing the brake pedal attempting to come to a complete at the traffic light, the brakes failed to work a intended. No warning light illuminated. The contact mention she kept trying to depress the brake pedal, however the vehicle kept accelerating causing the vehicle to crash into a ditch, go around a telephone poll, crashing into a rock garden which allowing the vehicle to come to a complete stop. The vehicle was towed to a towing lot call interstate towing then the vehicle was then towed by insurance company to a collision center. No injuries were sustained. No medical attention. The fire department extinguished the fire. The contact stated a police report was filed. The vehicle was destroyed. The manufacturer was not made aware of the failure. The approximate failure mileage was 166,834.
- Electrical system · Engine · Power train
The Kia had a problem with the check engine light coming on and it gently went into limp mode. I had it repaired at Darlings Ford and it worked for about 600 miles. I had it repaired again and it worked for about 7,000 miles. The light recent came on and the car immediately hard banged andwent into…
The Kia had a problem with the check engine light coming on and it gently went into limp mode. I had it repaired at Darlings Ford and it worked for about 600 miles. I had it repaired again and it worked for about 7,000 miles. The light recent came on and the car immediately hard banged andwent into limp mode. My wife was driving and shaking when she got home. The light went out and everything was fine. A couple of days later, on 5/27/26, we were on the interstate in traffic travelling 70 mph and it Violently hard bumped, the Cel came on and it went into limp mode. It was as if we hit deep pot holes with both front tires which we didn't as we were on a smooth highway. The light is still on and it's in limp mode.
- Engine
This vehicle is eligible for Theta II class action settlement, and I cannot seem to get the Kia dealerships, or the Kia Corporate to honor the engine failure issue that I was told by the AAA mechanic should have been replaced. I have also been told by others, including another mechanic at a…
This vehicle is eligible for Theta II class action settlement, and I cannot seem to get the Kia dealerships, or the Kia Corporate to honor the engine failure issue that I was told by the AAA mechanic should have been replaced. I have also been told by others, including another mechanic at a nationally recognized mechanic that it needs to be taken care of, and that they had the same vehicle and had there's taken care of without any issues.
- Engine · Unknown or other
While accelerating onto the highway in my 2016 Kia Optima 2.4L, the vehicle suddenly lost all engine power without warning. The vehicle would no longer accelerate and I was forced to coast and brake to safety. Immediately after the engine shut off, the check engine light, oil light, and battery…
While accelerating onto the highway in my 2016 Kia Optima 2.4L, the vehicle suddenly lost all engine power without warning. The vehicle would no longer accelerate and I was forced to coast and brake to safety. Immediately after the engine shut off, the check engine light, oil light, and battery light illuminated on the dashboard. After the incident, the vehicle would not restart or crank at all. The electrical systems, dashboard lights, and chimes still function normally, and the battery is new. The vehicle had proper oil level at the time of failure. No warning signs were present prior to the sudden loss of power. This failure created a serious safety hazard because it occurred during highway acceleration and left the vehicle unable to maintain speed or move out of traffic safely. Based on the symptoms and sudden engine shutdown, I am concerned this may be related to the known Theta II engine issues associated with Kia Optima vehicles.
- Engine and engine cooling
The contact owns a 2016 Kia Optima. The contact stated that while operating the vehicle a knocking and rattling noise coming from the engine and the check engine light had remained illuminated. The vehicle was towed to the local dealer who informed that the engine had failed and needed to be…
The contact owns a 2016 Kia Optima. The contact stated that while operating the vehicle a knocking and rattling noise coming from the engine and the check engine light had remained illuminated. The vehicle was towed to the local dealer who informed that the engine had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure but no assistance was offered. The failure mileage was 150,000.
- Air bags · Structure › Body · Unknown or other
Unknown the airbags didn't deploy when the car hit other driver from behind.
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- Loss of Motive Power
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.
- Throttle control system vulnerabilities
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003.…
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can be reviewed at NHTSA.gov under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. NHTSA's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in NHTSA's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be published.
- Electrical overstress
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.
- 10252085TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z) - 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 related to the Technical Service Bulletin previously published PI1802 titled "Knock Sensor Detection System - ECU Logic Improvement"; equipped w/THETA II engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
- 10245265TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INHIBITOR SWITCH REPLACEMENT (SA317B/C) - 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 replace the inhibitor switch on some 2017MY Optima (JFa), Sorento (UMa), Optima Hybrid (HEV), Optima Plug-in Hybrid (PHEV), Sportage (QL), Forte (YD), and Sedona (YP), and some 2016-2017MY Optima (JF) vehicles, equipped with a front wheel drive 6-speed transmission, which may experience the concerns listed below. These concerns may be due to the inhibitor switch not allowing the correct gear position signal to be sent to various control units.
- 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.
- 10240263CUSTOMER 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.
- 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.
- 10238484TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INHIBITOR SWITCH REPLACEMENT (SA317B/C) - 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 replace the inhibitor switch on some 2017MY Optima (JFa), Sorento (UMa), Optima Hybrid (HEV), Optima Plug-in Hybrid (PHEV), Sportage (QL), Forte (YD), and Sedona (YP), and some 2016-2017MY Optima (JF) vehicles, equipped with a front wheel drive 6-speed transmission, which may experience the concerns listed below. These concerns may be due to the inhibitor switch not allowing the correct gear position signal to be sent to various control units.
- 10237610TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INHIBITOR SWITCH REPLACEMENT (SA317B/C) - 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 replace the inhibitor switch on some 2017MY Optima (JFa), Sorento (UMa), Optima Hybrid (HEV), Optima Plug-in Hybrid (PHEV), Sportage (QL), Forte (YD), and Sedona (YP), and some 2016-2017MY Optima (JF) vehicles, equipped with a front wheel drive 6-speed transmission, which may experience the concerns listed below. These concerns may be due to the inhibitor switch not allowing the correct gear position signal to be sent to various control units.
- 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.
- 10233306CUSTOMER 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.
- 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.
- 10230486TECHNICAL SERVICE BULLETIN: HIGH-VOLTAGE BATTERY SAFETY PLUG FUSE INSPECTION AND REPLACEMENT - This bulletin provides information associated with the "Hybrid System Warranty Extension Program" (WTY029) to inspect and, if necessary, replace the High Voltage Battery (HVB) Safety Plug Fuse Assembly or Main Fuse on 2013-2016MY Optima Hybrid (TF HEV) vehicles produced from September 27, 2012 through July 22, 2015.
- 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.
- 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.
- 10210431PITSTOP: INJECTOR HARNESS ROUTING FOR PI1802Y/Z AND PI1803Y/Z ENGINE REPLACEMENTS - This bulletin provides information to address a no-start or hard start with poor running condition after engine replacement under PI1802Y/Z or PI1803Y/Z. Some replacement long blocks may come with pre-installed fuel rail, injectors, and injector wiring harness. If the condition is present, it is possible that the injector harness was not installed correctly. The connections may be swapped from cylinder No. 1 and cylinder No. 4, and from cylinder No. 2 and cylinder No. 3.
- 10209439TECHNICAL SERVICE BULLETIN: MDPS WARNING LAMP DIAGNOSTIC INSPECTION & SINGLE PARTS REPLACEMENT - This bulletin provides information regarding the diagnosis of Motor Driven Power Steering (MDPS), also known as Electronic Power Steering (EPS), and parts replacement associated with the Warranty Extension Program (WTY023) on 2016-2017MY Optima (JF/JFa), 2017MY Optima HEV/PHEV (JF P/HEV), 2016-2017MY Sorento (UMa) vehicles produced in the ranges listed below. The affected vehicles may exhibit the MDPS (also known as EPS) warning lamp ON. The warranty coverage for repairs related to the MDPS unit due to illumination of the MDPS warning lamp has been extended to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
- 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.
- 10206888WARRANTY EXTENSION: OWNER NOTIFICATION - This document is the notification to owners of the warranty extension program for WTY023. Kia is extending the New Vehicle Limited Warranty coverage for repairs related to the Motor Driven Power Steering (MDPS) unit, also known as Electronic Power Steering (EPS) unit, due to illumination of the EPS warning light for all 2016-2017 MY Optima vehicles 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.
- 10206887WARRANTY 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.
Every KIA Optima model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.