2011 Kia Optima

Fatalities reported

Owners filed 594 complaints about this vehicle with federal regulators, most often about the engine. It has been recalled 5 times.

Avoid One of the Kia Optima years to avoid: 3.1× the complaints of a typical Optima year. Which Kia Optima years to avoid →

When it fails
020k40k60k90k120k200k
90,000 milesMedian miles at failure

421 complaints record an odometer reading. Failures cluster around 90,000–105,000 miles.

Most common 2011 Kia Optima problems

232 of the 594 complaints (39%) are about the engine.

ComponentReportsCrashesFiresInjuries
Engine224
3174
Steering85
000
Exterior Lighting · headlights62
000
Electrical System46
160
Air Bags · airbags28
907
Service Brakes · brakes22
501
Service Brakes, Hydraulic · brakes20
010
Unknown or Other17
020
Structure › Body · body and frame15
243
Power Train · transmission15
000

2011 Kia Optima engine problems

39% of all complaints

232 of the 594 complaints are about the engine. This is what owners describe:

  • stalls24% · 56
  • knocks, grinds or clunks23% · 53
  • sets off warning lights on the dash22% · 52
  • turns on the check engine light21% · 48
  • smokes or smells of burning11% · 26
  • loses power10% · 24

Share of the 232 engine complaints whose text describes each symptom. One complaint can describe several.

Typical mileage
101,958 mi
median of 184 reports
Peak year of filing
2017
45 engine complaints that year
Crashes · fires · injuries
3 · 17 · 4
in these complaints
Recalls on the engine
“I as driving on the highway and all of a sudden the car would not accelerate. The engine light, oil light, air bag lights etc. all turned on. The speed quickly dropped but I was able to to move into the safety lane. The card finally stalled and would would not start. I tried turning it back on, but the engine would not crank. The lights, radio, AC would still turn on, but the engine would not start.”
Owner complaint, filed Dec 20, 2021
“On NOV. 26TH 2021, I was driving my car and upon trying to accelorate, my car felt as if it was about to stall out. I pressed the gas and I barely moved. My engine light went on immediately and it's constantly flashing now. The cars RPM's do not go past 1-1/2 RPM's. I can not pick up speed like before, like I should. My car now hesitates and I'm scared to drive it.”
Owner complaint, filed Nov 27, 2021

Complaints and recalls over time

By year of filing
2011: 32 complaints, 0 about the engine'112012: 22 complaints, 0 about the engine2013: 14 complaints, 1 about the engine'132014: 10 complaints, 5 about the engine2015: 39 complaints, 11 about the engine'152016: 79 complaints, 39 about the engine2017: 78 complaints, 45 about the engine'172018: 65 complaints, 27 about the engine2019: 78 complaints, 31 about the engine'192020: 52 complaints, 24 about the engine2021: 33 complaints, 18 about the engine'212022: 14 complaints, 7 about the engine2023: 16 complaints, 4 about the engine'232024: 42 complaints, 10 about the engine2025: 8 complaints, 4 about the engine'252026: 12 complaints, 6 about the engineRecall 13V114000 (headlights)Recall 17V224000 (engine)Recall 18V363000 (airbags)Recall 18V907000 (engine)Recall 23V652000 (brakes)NHTSA investigation AQ23002NHTSA investigation DP22003NHTSA investigation EA21003NHTSA investigation DP21003NHTSA investigation PE19004NHTSA investigation RQ17003
All complaintsAbout the engineRecall (red: the engine)NHTSA investigation opened

Complaints about the 2011 Optima peaked in 2016, with 79 filed that year. Owners had filed 59 complaints about the engine before the first recall that covers it, 17V224000 in March 2017; 173 more have come in since. In 2026 owners filed 12 so far.

5 safety recalls

Part 573 reports
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module23V652000Park outside
Filed Sep 25, 20231,730,192 vehiclesKia America, Inc.

Defect. Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.

Risk. An engine compartment fire while parked or driving can increase the risk of injury.

Remedy. Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the HECU fuse, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC284.

Engine18V907000
Filed Dec 19, 201871,653 vehiclesKia Motors America

Defect. Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pipe that connects to the fuel pump outlet may have been damaged, misaligned or improperly torqued during the engine replacement procedure, possibly causing a fuel leak.

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.

Air Bags › Air Bag/Restraint Control Module18V363000
Filed Jun 1, 2018507,587 vehiclesKia Motors America

Defect. Kia Motors America (Kia) is recalling certain 2010-2013 Kia Forte, Forte Koup, 2011-2013 Kia Optima and 2011-2012 Kia Optima Hybrid and Sedona vehicles. In the event of a crash, the air bag control unit (ACU) may short circuit, preventing the frontal air bags and seat belt pretensioners from deploying.

Risk. If the frontal air bags and seat belt pretensioners are disabled, there is an increased risk of injury to the vehicle occupants in the event of a vehicle crash that necessitates deployment of these safety systems.

Remedy. Kia will notify owners. For model year 2011 Sedona vehicles, Kia will instruct dealers to verify the ACU part number and, if necessary, install an extension wire harness kit between the ACU Connector and the Vehicle Harness Connector. For all other affected vehicles, Kia will instruct dealers to install the extension wire harness kit. The recall began September 28, 2018. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC165.

Engine and Engine Cooling › Engine17V224000
Filed Mar 31, 2017618,160 vehiclesKia Motors America

Defect. Kia Motor Company (Kia) is recalling certain 2011-2014 Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles. Machining errors during the engine manufacturing process may cause premature bearing wear within the engine.

Risk. Bearing wear may result in the engine seizing, increasing the risk of a crash.

Remedy. Kia will notify owners, and dealers will inspect the engine assembly, and replace the engine if necessary, free of charge. The recall began June 20, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC147.

Exterior Lighting › Brake Lights › Switch13V114000
Filed Apr 1, 2013980,377 vehiclesKia Motors Corporation

Defect. Kia Motors Corporation (Kia) is recalling certain model year 2007-2010 Rondo, model year 2007-2011 Sedona, Sorento and Sportage, model year 2010-2011 Soul, model year 2008-2011 Optima, model year 2010 Forte, model year 2007-2009 Amanti, and model year 2009 Borrego vehicles. Originally, in April 2013, Kia recalled 623,658 model year 2007-2010 Rondo and Sportage, model year 2007-2011 Sorento, model year 2007 Sedona, model year 2010-2011 Soul, and model year 2011 Optima vehicles. In September 2013, Kia informed the agency that it was adding an additional 356,719 vehicles to this campaign. The total number of vehicles being recalled is now 980,377. In the affected vehicles, the stop lamp switch may malfunction. A malfunctioning stop lamp switch may cause the brake lights to not illuminate when the brake pedal is depressed or may cause an inability to deactivate the cruise control by depressing the brake pedal. Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake-transmission shift interlock feature preventing the shifter from being moved out of the PARK position and cause the Electronic Stability Control (ESC) malfunction light to illuminate.

Risk. Failure to illuminate the stop lamps during braking or inability to disengage the cruise control could increase the risk of a crash. Additionally, when the ignition is in the 'ON' position, the transmission shifter may be able to be moved out of PARK without first applying the brake. This may lead to unintentional movement of the car which may increase the risk of a crash.

Remedy. Kia will send an interim notification to owners in May 2013. When parts are available, owners will receive a second notification and dealers will replace the stop lamp switch, free of charge. Owners may contact Kia at 1-800-333-4542. Kia's recall campaign number is SC098.

All 5 campaigns on file, newest first.

NHTSA investigations

Office of Defects Investigation

Before a recall there is often an investigation: NHTSA opens one when complaints or manufacturer data point to a safety defect. 7 name the 2011 Optima.

Hyundai and Kia ABS Module FiresAudit query AQ23002Open
Opened Nov 17, 2023brakes

The Office of Defects Investigation (ODI) has received eight Hyundai Motor America (Hyundai) and eight Kia America, Inc. (Kia) Part 573 Recall Reports between 2016 and 2023. The combined 16 safety recalls all involve the antilock braking system (ABS) modules or Hydraulic Electronic Control Units (HECU) manufactured by the equipment supplier Mando. The Part 573 Recall Reports contain varying defect descriptions and differing remedy descriptions for the same or similar equipment supplied by Mando. Safety recalls included in this Audit Query (AQ) review include: Hyundai recalls 20V-520, 20V-543, …

Loss of Motive PowerDefect petition DP22003Closed
Opened Sep 12, 2022Closed Dec 12, 2023engine

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 …

Engine FiresEngineering analysis EA21003Closed
Opened Dec 22, 2021Closed Feb 5, 2024Led to recall 23V877engine

On March 29, 2019, the Office of Defects Investigation (ODI) opened two Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) to broadly investigate incidents of non-crash fires (regardless of origin or operational status of the vehicle) on various model year Hyundai and Kia vehicles. During the PE investigations, Hyundai and Kia issued several recalls to address vehicle fires, including those due to engine failures involving various engine types. The remedies for the engine failure recalls typically involve engine inspection (to detect existing damage), and if necessary, engine …

Throttle control system vulnerabilitiesDefect petition DP21003Closed
Opened Nov 12, 2021Closed Jun 20, 2023throttle and acceleration

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 …

Non-crash Vehicle FiresPreliminary evaluation PE19004Closed
Opened Mar 29, 2019Closed Dec 22, 2021Led to recall 20V088000electrical system

During this Preliminary Evaluation (PE), the Office of Defects Investigation (ODI) assessed the scope, frequency and potential safety-related consequences of non-crash vehicle fires caused by both engine failures and failures of other vehicle systems/components in model year (MY) 2011-2014 Kia Optima, MY 2011-2014 Kia Sorento and MY 2010-2015 Kia Soul vehicles equipped with Theta II, Gamma, Nu and Lambda II engines (approximately 1.7 million vehicles). ODI also reviewed field and other data on other Kia vehicles (approximately 3.6 million additional vehicles) equipped with the same engines …

Non-crash Vehicle FiresDefect petition DP18003Closed
Opened Aug 21, 2018Closed May 10, 2019Led to recall 18V907000electrical system

In a letter dated June 11, 2018, the Center for Auto Safety (CAS) petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into non-collision related fires on model year (MY) 2011-2014 Kia Optima and Sorento, and Hyundai Sonata and Santa Fe vehicles. In a letter dated July 24, 2018, CAS requested that MY 2010-2015 Kia Soul vehicles be added to the petition. CAS stated that there is a higher number of complaints to NHTSA regarding non-crash fires on these vehicles compared to other similar vehicles. The Office of Defects Investigation …

Scope and TimelinessRecall query RQ17003Closed
Opened May 18, 2017Closed Dec 22, 2021Led to recall 17V224000engine

NHTSA opened Recall Query (RQ) 17-003 to investigate the timeliness and scope of Kia?s Theta II GDI engine recall (Recall No. 17V-224), and Kia?s compliance with reporting requirements. On November 23, 2020, the Agency entered into a Consent Order with Kia to administratively resolve NHTSA?s assertions of violations of law in connection with RQ17-003. NHTSA?s assertions included that Kia may be liable for civil penalties on multiple grounds, including that Recall No. 17V-224 was untimely and Kia?s recall report contained certain inaccuracies.Under the Consent Order, Kia agreed to a total …

Technical service bulletins

228 on file

Repair instructions the manufacturer sent its dealers for the 2011 Optima. Not recalls: the fix is usually free only while the car is under warranty.

engine 71electrical system 42steering 31equipment 31transmission 11body and frame 10headlights 7fuel system 7
WTY014_OWNRWarranty extensionJun 11, 2019electrical system

wty014_OWNR: This document is the Owner Notification Letter advising the customers of the Warranty Extension on the Headlamp Assembly on the 2011-2013 MY Optima and Optima HEV vehicles.

WTY014_REIMBWarranty extensionJun 11, 2019equipment

This document is a Reimbursement Request 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.

WTY014_DPWarranty extensionJun 7, 2019headlights

WTY014: This document is the Dealer Principal Notification advising of the Warranty Extension Program for the Headlamp Assembly on 2011-2013 MY Optima and Optima HEV vehicles.

WTY014_PSMWarranty extensionJun 7, 2019headlights

WTY014_PSM: This document is the notification to the Parts and Service Managers advising them of the warranty extension on the Headlamp Assembly on 2011-2013 MY Optima and Optima Hybrid vehicles.

TSB_ENG222_R8Service Bulletin/Repair InstructionsApr 3, 2025engine

TECHNICAL 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 2011-2024MY vehicles (refer to the table on pages …

TSB_ENG222_R7Service Bulletin/Repair InstructionsFeb 28, 2025engine

TECHNICAL 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 2011-2024MY vehicles (refer to the tables on pages …

PI1803YZ_TSB_R7Service Bulletin/Repair InstructionsMar 22, 2024engine

TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803Y/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 …

TSB_SST067_R2Service Bulletin/Repair InstructionsSep 13, 2022engine

TECHNICAL 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 …

PS720Service Bulletin/Repair InstructionsApr 20, 2022engine

PITSTOP: 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 …

TSB_ENG222_R6Service Bulletin/Repair InstructionsMar 1, 2022engine

TECHNICAL 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 …

Showing the newest 6 of 71 bulletins about the engine, and any warranty extensions or service campaigns.

Crash test ratings

NHTSA 5-star safety ratings
Version testedOverallFrontalSideRolloverRollover risk
2011 Kia Optima 4 DR FWD★★★★★★★★★★★★★★★★★★★★9.6%

New Car Assessment Program results for this model year. Ratings compare cars of similar size and weight only.

What owners reported

Newest filings
Engine and Engine Cooling
Filed Oct 7, 202677,500 milesCA

The contact owns a 2011 Kia Optima. The contact stated that while a family member was driving and exiting a parking lot, the vehicle turned off, causing the vehicle to lose power. The contact stated that there was a burning odor inside the cabin of the vehicle with an audible clicking sound coming from the starter motor. The vehicle was towed to a local authorized dealer. The contact referenced NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) and Kia Warranty Bulletin 2017-09.R4 as the possible causes for the failure. The manufacturer was notified of the failure but refused to accept or authorize the recall repair because the vehicle had a salvage title. The authorized dealer also declined to service the vehicle due to the salvage title. The failure mileage was 77,500.

Electrical System
Filed Sep 7, 2026TX

I own a 2011 Kia Optima, VIN [XXX]. My vehicle was taken to Rockwall Kia on August 25, 2026, for completion of NHTSA Safety Recall 23V-652 / Kia SC284TF involving the HECU fuse. The dealership replaced the HECU multi-fuse and label kit. Before the recall repair, the vehicle was operating normally. The same day I picked the vehicle up after the recall repair, the vehicle began dying while I was driving. I also noticed a burning smell. I returned the vehicle to Rockwall Kia. Their August 31, 2026 repair order documents my complaint and states that the vehicle would die while driving and that this problem “DID NOT BEGIN UNTIL AFTER RECALL COMPLETED.” The repair order instructs the technician to inspect whether the recall was completed properly and diagnose the concern. I am concerned because the HECU recall involves an electrical short/overcurrent condition and Kia's recall documentation specifically identifies burning/melting smell and smoke as warning symptoms. I am requesting that NHTSA document this complaint and review whether the post-recall stalling and burning smell could be related to the HECU recall repair or indicate a continuing safety problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

EngineFire
Filed Aug 20, 2026MI

I was having trouble with my left driver tire. 2 mechanics went to test drive the car to see what the problem was. As they were driving, the car died. They got it started but it ran horrible back to the garage. When they pulled in the driveway of the garage, the car started on fire. It was an engine fire but undetermined what exactly was the cause. The vehicle was looked over by the insurance claims adjustor. I am not sure if sluggish driving had anything to do with the fire. The car is totaled.

Engine
Filed Jul 23, 2026FL

The vehicle's engine had previously been replaced once under Kia's Theta II engine recall/warranty program approximately five years prior to this incident. On the date of failure, the replacement engine catastrophically failed while the vehicle was in operation, resulting in the engine developing a hole in the engine block and becoming inoperable. Prior to the failure, the vehicle exhibited a "check engine" warning and symptoms consistent with connecting rod bearing failure. Diagnostic trouble codes P1326 and P0303 were present upon inspection at an authorized Kia dealership. The failure occurred at approximately 198,000 miles. This is the second engine failure on this vehicle, both consistent with the known Theta II engine defect involving premature bearing wear and connecting rod failure that has been the subject of prior NHTSA recalls and a related class action settlement. The failure created a risk of sudden loss of engine power while driving, which can pose a safety hazard in traffic. The vehicle was inspected by the authorized Kia dealership, which confirmed the hole in the engine block and the diagnostic codes noted above. The engine and related repair estimate are available for inspection upon request. A warranty claim for repair coverage was submitted and denied by the manufacturer, citing insufficient maintenance documentation, despite this being the vehicle's second occurrence of the same underlying defect.

Air Bags
Filed Jul 13, 2026OH

About six months ago, I lost the heated steering wheel functionality in my steering wheel, then from there, I slowly lost functionality like cruise control, and the most recent now my airbag and horn do not work. If you press on the horn, it is silent, and the airbag light has been illuminated consistently for the last couple of months. I had this issue diagnosed and it came up with the codes of B1346. And B1481. After some research, these issues are the result of a bad clock, spring and cause the airbag and horn not to work. Additionally, this issue is known to this model the 2011 Kia Optima, and has been recalled in most production cases of this vehicle, but my vehicle is not included. I received a quote for $876 from a dealership to get this corrected, but it should be included in the recall.

Electrical SystemFire
Filed Jun 4, 2026LA

The contact owns a 2011 Kia Optima. The contact stated that while the vehicle was parked in a parking lot, he noticed the vehicle started smoking heavily from under the hood, and shortly thereafter, the vehicle fully ignited into flames. The vehicle was occupied during the fire. The contact stated that he noticed smoke emerging from the driver-side section of the hood. Furthermore, the contact noted that the power door locks failed to unlock automatically, requiring him to manually unlock the door to exit the vehicle safely. The color of the smoke started off light and quickly turned black. The contact stated he noticed a burning electrical odor during the fire. The fire started at underneath the hood, and stayed in the engine bay. No property damage. The location of the fire was the engine compartment. The fire was extinguished by the local fire dept by water. A Fire Department report was not filed. No police report was filed. The vehicle was totaled. No injuries occurred. The vehicle was towed to a independent auto shop. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage on the odometer was 219,000, but the vehicle had a previous engine replacement.

Exterior Lighting
Filed Jun 2, 2026UT

I have replaced the headlights in my 2011 Kia Optima multiple times but no matter what without the brights on, the road is not at all illuminated making it impossible to see at night. When you look at the car head on the lights look as if they would be incredibly bright, but I believe due to faulty reflective lining on the interior of the headlight housing, even though the bulb may shine brightly, it does not get reflected properly onto the surface of the road causing serious safety concerns.

EngineFire
Filed Apr 20, 202635,000 milesIN

The contact owns a 2011 Kia Optima. The contact stated that the vehicle caught fire while driving at 60 MPH on the expressway. No warning lights illuminated. The contact had some wires replaced prior to the failure. There were no reported injuries, air bag deployment or crash. The driver was able to pull over safely. The fire department was able to extinguish the fire. A police report was filed. The vehicle was towed to a tow lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was called but there was no answer. The failure mileage was approximately 35,000. The VIN was not available.

Engine
Filed Apr 8, 2026GA

I am submitting a complaint regarding my 2011 Kia Optima (VIN: [XXX] ), which is currently experiencing significant engine issues and is undrivable. This issue is currently being reviewed under Kia Case #XXX. This vehicle is part of the Theta II engine group that has been the subject of recalls, service campaigns, and extended warranty coverage due to known engine defects, including rod bearing failure and potential engine seizure. The vehicle has also received the Knock Sensor Detection System (KSDS) update associated with these known issues. My vehicle is currently at the dealership and has been there since March 10, 2026. It is not drivable, and I have been without transportation during this time. The dealership has diagnosed the issue as oil consumption; however, Kia has denied coverage, stating that oil consumption is not related to rod bearing failure. Kia has not confirmed whether a full internal engine inspection was performed to rule out rod bearing damage, nor have they confirmed that a Techline engineering review has been conducted. Given the known history of engine defects in this model, I am concerned that the current condition may be related to internal engine failure that has not been properly evaluated. Oil consumption can be a precursor or symptom of internal engine damage, and I do not believe the issue has been fully or adequately diagnosed. Additionally, my vehicle has an open safety recall related to potential engine compartment fire risk, which further r

Service Brakes, Hydraulic
Filed Mar 26, 2026160,000 milesFL

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that while driving, the vehicle failed to exceed 60 MPH with the accelerator pedal depressed. No warning light was illuminated. The local dealer advised the contact that the vehicle could not be repaired due to a lack of maintenance records. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 160,000.

Structure › Body1 injured
Filed Feb 13, 2026RI

While driving the Kia on the highway (in the passing lane on Route 93, Boston, MA), the hood of the car flew open and shattered the windshield. Prior to getting into the vehicle, there was no notification, warning light/display, that alerted to the hood or anything else not being 'closed', no rattling of the hood either. The hood blocked my entire vision with the exception of a small area below, where I miraculous got over to the breakdown lane without causing any accident. When I got out of the car, the hood was bent and the second latch was loose. It did not hold its shape. Called the police and the insurance company, the car was deemed a total loss. This incident occurred on January 31, 2026 at 10:05AM. The conditions were dry and sunny. The state trooper said that this incident could have had serious safety consequences to the driver and others since no one expects a hood to fly open, block visibility...this highway is a busy road and could have impacted several other vehicles on the road. We no warning lamps/message- this was traumatic- this put the safety of the driver and the public at great risk.

Engine
Filed Feb 9, 2026KY

I was driving in the highway doing about 80mph passing a semi truck when all of a sudden my vehicle went from 80 down to 50 mph and I was jerked forward. I thought I was rear ended but when I looked in my rear view mirror no cars were behind me. I looked down and noticed my engine light, battery light and oil light were on and turned down my music and could hear my engine was no longer running. Thankfully there wasn't much traffic and I was able to coast to the side of the highway and turn the car off. If someone would have been behind me I am confident I would have been hit. The problem has since been confirmed by a dealership and info has been sent to Kia. The dealership was unable to provide me with a loaner car as "they had none available" so I contacted Kia corporate and they are telling me my only option is that I have to come out of pocket for a rental and they will reimburse 40$ per day. I don't think especially since I had to pay for 2 nights in a hotel as I was stranded, a few hundred dollars for a tow that I should have to pay anything as the issue with what happened to my car is the fault of Kia at the time of manufacturing. At this time I have been without a vehicle for 1 week. I was told by the dealership today that they sent all of the required info over to Kia to get word on whether the lifetime extended warranty would pay for my car to be repaired. The previous owner before me did have the KSCS update performed as mandated by Kia. My problem is I am already o

Engine
Filed Oct 29, 2025TN

I was driving down the road with my 3 sons in the vehicle and all of a sudden the vehicle and engine seized completely up and turned off. I contacted kia dealership who advised me to bring it to kia of Johnson. I took it there and my vehicle has just been setting there. It's under warranty and backed by a theta2 class action lawsuit. And they still won't touch it and are very rude.

Engine
Filed Aug 21, 2025TN

The Engine locked up while driving down the highway at 60mph. Not possible for inspection vehicle currently broke down at shop. I barely had braking power to stop vehicle. Has been confirmed by Kia dealership. Yes vehicle has been inspected by vehicle manufacturer. Check engine light came on 5 seconds before locking up. Happened [XXX] at [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Structure › Body
Filed Jul 23, 2025GA

Paint is peeling off in large pieces despite there being no damage. We have the pearl white color.

Service Brakes
Filed Jun 21, 2025GA

The car just keep doing weird stuff with the lights. It want go off all the time the key went work the cv joints are popping. Have to trigger the battery sometimes to start up

Air Bags
Filed Apr 24, 2025TN

The airbag warning light on the dashboard stays on continuously and will not go off.

Engine and Engine Cooling › Engine › Oil/Lubrication
Filed Mar 21, 202568,500 milesPA

The contact owns a 2011 Kia Optima. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine. There was no warning light illuminated. The vehicle was taken to an independent mechanic who noticed that the engine oil level was abnormally low, and that there were no visible signs of an oil leakage. The oil level was topped off; however, within 3 weeks the oil level was abnormally low again. The vehicle was taken to a local dealer to be diagnosed and the contact was informed that an excessive oil consumption was not included in the engine replacement warranty extension. The contact was informed that a further diagnostic test was required. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,500.

Engine
Filed Jan 26, 2025CA

Engine is knocking with check engine ligh on. Kia has a recall on my car for metal shaving in the engine during manufacturing process. I took it to Kia dealer but they refused and said they wont cover it because it's a Salvage tile, and I thought Salvage tiles are covered if it's a a safety recall but they said it's not covered because Kia wont pay them for the repairs or the new engine.

Electrical System
Filed Jan 6, 2025MI

Hydraulic Electronic Control Unit (HECU) experienced an electrical short circuit and engine hardly running.

Unknown or Other
Filed Dec 3, 2024FL

Not sure what to do. I scheduled a recall fix for this HECU fuse with our city KIA dealer. When I went they told me I'd have to come back because they didn't have one in stock. No one ever called me again so I phoned to make an appt and the service manager never gets back with me at this dealership. Next dealership is an hour away. Please advise. Thank you.

Steering
Filed Oct 30, 2024121,000 milesCA

The contact owns a 2011 Kia Optima. The contact stated while driving 25 MPH, there was a notchy feel in the steering wheel. The vehicle was taken to an independent mechanic, where it was diagnosed, and the failure was linked to TSB Number: CHA060. The mechanic determined that the steering coupler needed to be replaced. The mechanic ordered the part for the repair. The vehicle was not yet repaired. The dealer was notified of the failure. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under TSB Number: CHA060; due to the mileage on the vehicle. The failure mileage was approximately 121,000.

Service Brakes, Hydraulic
Filed Sep 24, 2024MI

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Service Brakes
Filed Sep 15, 2024IL

After getting HECU recall done , it has caused issues with the HECU module to where the brake lights no longer work and the ESC light comes on the cluster panel. Up on reading the code C2130, it says Brake lamp relay error. Mind you that my car was in working order before this recall was even done. This a huge safety issue not having your brake lights work. I can get rear-ended and i have kids in the car. This has been a issue since July when i got the recall done and KIA has yet to find a fix for this matter.

Engine
Filed Sep 10, 2024WI

2 weeks ago my 2011 Kia Optima's engine died while driving. I am the 2nd owner of the car and bought it in summer of 2022 (not 2020). Before buying the car private sale, I sought my mechanics advice who told me Kia engines had issues going back to 2011. Before buying, my brother called the closest Kia dealership to confirm the owner was telling the truth that he had taken the car in for all safety recalls. Kia told my brother the engine and vehicle belonging to the VIN he provided were good to go and that the engine recalls were done. After my car died, I had it towed to my mechanic and was told the engine was bad. I called Russ Darrow Kia and informed them of the situation. I don't recall who I spoke with, but I asked about the recalls and any red flags that would void any warranties on the engine. I was told there were none and I should have the car towed to have them do an engine inspection. On September 7th, I called Kia because I had not heard anything about my car. I was told an inspection was done but the warranty was voided because a recall for NOX sensor had not been done. I called Kia consumer and spoke with a supervisor who just read a template of the Federal Lawsuit and how due to the voided warranty, Kia would not replace my engine. I explained how I had called prior to buying the car and confirmed the engine was up to date with any recalls and I had not received any recall notices for the NOX sensor nor any others pertaining to the engine. I only ever received a

Unknown or Other
Filed Aug 31, 2024FL

I have gone to two Kia Dealers to get my recall on the HECU fixed and they will not help me. I was told that they did not have the part and did not know when they were receiving the part. I also called Kia and they were no help either. What next steps can I take to get this matter resolved. Thank you

Steering
Filed Aug 15, 2024IN

1- Steering wheel. Yes 2- Not sure if something was going to happen while driving whether da or night or long distance traveling 3- I spoke with the service center a while back and didn't have a good time to bring it by. 4- No No just loud shaking from the steering wheel. It's been going on for at least a month

Engine
Filed Jul 18, 2024CO

Mi carro estaba bien ninguna luz de testigos prendidos de pronto iba por la carretera conduciendo se freno y se apago gracias a Dios no ocurrió ningún accidente. Lo volví a prender sonaba el motor como si tuviera un tic tac y se prendió las luces de testigo de motor.

Service Brakes
Filed Jun 22, 2024AR

May 13, 2024, we received a letter from Kia America that parts were available to correct the fire hazard detailed in NHTSA Recall Number 23V652000. This followed the Interim notice that was communicated to us on November 12, 2023. Around June 1, we made an appointment to perform the recall work on [XXX] at Classic Kia in Texarkana, TX. After a two hour wait on [XXX], we were informed that the replacement part was not available. They apologized and said that they would order the part and let up know as soon as possible when the repair could be made. On June 20, we followed up with the Service Manager and were told the part would arrive the next day and he would call and confirm a new appointment. Rather than doing this, on June 21, we were told that the part was unavailable and on back order, they didn't know when the part would be available. They hoped it would be in a week or two and they would call us when it was available. It seems unacceptable that the replacement part for such a serious safety concern is not immediately available given the time frames involved. Kia had six months to plan the solution, we provided approximately 3 weeks for the dealership to order the part, and we are still being told that it could be more than 2 weeks before it is available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Unknown or Other
Filed Jun 21, 2024NH

Unknown

Electrical System
Filed Jun 20, 2024GA

Recall states to not drive vehicle due to HECU which can result in an engine compartment fire. I have contacted 3 dealerships and corporate. There are 15,000 dealerships/service centers that have technology/technical issues. I have spent 3 days, and 12 hours trying to get assistance. I'm being told corporate is not providing any additional support or payment to individually owned dealerships. Expecting them to cover additional expenses. I am disabled and need to go to treatments/procedures multiple times a week. They are backed up 1-2 months for an appointment. Consumers are to pay everything up front and then 90 days later request a reimbursement. They will not provide or pay for a rental or loaner car until the car is being serviced. Therefore they are leaving me with no vehicle for up to 2 months as their letter clearly states that the vehicle is not to be driven and is unsafe. I should not be inconvenienced because Kia made a mistake and is now having to perform a recall, 15,000 stores are not able to perform because of technical issues, they are so far behind in their service appointments which should not have any effect on me and I should not be responsible to pay for any of this and they should absolutely provide me with the vehicle and not leave me with no transportation for 2+months. I am unable to get to my appts. for treatments, my daughter cannot Drive to work. And they have absolutely no solution for me and telling me that there is nothing that can be done other

Service Brakes, Hydraulic
Filed Jun 12, 2024NY

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Service Brakes, Hydraulic
Filed May 31, 2024AZ

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

EngineFire1 injured
Filed May 24, 2024192,910 milesCA

The contact called on behalf of an insurer who owned a 2011 Kia Optima. The contact stated that while the client was on the highway driving at an undisclosed speed, he was flagged down to be told their vehicle was releasing smoke. The client noticed an open flame coming from the undercarriage and was able to veer the vehicle to the shoulder prior to ejecting himself from the vehicle before it was engulfed in flames. The client sustained minor injuries to their knee and finger while exiting the vehicle. No other injuries or passengers were reported. The fire was extinguished by the Fire Department. A fire report was filed. A police report was not filed. The dealer was not contacted. The vehicle was destroyed. The manufacturer was notified of the failure. The failure mileage was approximately 192,910.

Service Brakes, Hydraulic
Filed May 23, 2024132,165 milesMI

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving at an undisclosed speed, the hybrid battery system warning light illuminated. The vehicle was towed to the dealer where it was diagnosed with a short circuit fuse and a failed hybrid battery. The contact was informed that the battery and the fuse needed to be replaced. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The manufacturer agreed to assist with fifty percent of the repair cost for the replacement of the hybrid battery. The failure mileage was approximately 132,165. Parts distribution disconnect.

Service Brakes
Filed May 20, 2024IN

I could not brake and almost caused a car accident. Brakes gave out, no gas, it smelled like it was going to catch on fire.

Engine
Filed May 18, 2024RI

We had someone hit our vehicle and our ins co totalled the vehicle instead of repairing it due to the check engine light being on because of this recall

Electrical System
Filed May 17, 2024CO

Recall for HECU fuse. Dealer made appointment to fix the cancelled saying fix was no longer available by Kia. Kia should not have said there is a remedy available when there is not.

Service Brakes, Hydraulic
Filed May 14, 2024CA

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Exterior Lighting
Filed Apr 26, 2024150,000 milesMI

The contact owns a 2011 Kia Optima. The contact stated that the headlights were significantly dim, which reduced the driver's visibility of the roadway while driving at night. The vehicle was taken to the local Pep Boys where the headlight bulbs were replaced; however, the failure persisted. The dealer was notified of the failure and charged a repair fee for the headlights replacement. The manufacturer was notified of the failure. The failure mileage was approximately 150,000.

Service Brakes, Hydraulic
Filed Apr 16, 2024128,000 milesPA

The contact owns a 2011 Kia Optima. The contact stated that while driving 55 MPH and coming to a stop, there was an abnormally loud sound coming from the steering wheel. There was no warning light illuminated. The contact stated he was able to continue to drive the vehicle back to the residence. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was unavailable. The dealer was not contacted for a diagnostic test or repair. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure but was unable to confirm when parts would be available. The failure mileage was approximately 128,000. VIN tool confirms parts not available. The VIN was not provided.

Service Brakes, Hydraulic
Filed Apr 9, 2024118,000 milesIN

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brake, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving at an undisclosed speed, the contact noticed a burning odor on the exterior of the vehicle and smoke coming from underneath the hood. The contact drove the vehicle to the shoulder of the road to allow the vehicle to cool down. The vehicle was taken to the dealer and the dealer was made aware of the failure and confirmed parts that were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 118,000. VIN tool confirms parts not available.

Service Brakes, Hydraulic
Filed Apr 5, 2024FL

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Engine
Filed Apr 1, 2024157,000 milesGA

The contact owns a 2011 Kia Optima. The contact stated that while driving at an undisclosed speed, she smelled smoke in the interior of the vehicle. The air bag and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the knock sensor. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic), and the VIN was included, but parts were not yet available. The manufacturer was not notified of the failure. The failure mileage was 157,000.

Engine
Filed Mar 24, 2024CA

On [XXX] while driving my oil light came on. Since I assumed I was low on oil, I proceeded to nearest gas station, approx 10 min.away, and added oil. I let engine remain off for approx.20 min. When I started the car up blue smoke began coming out from front and rear and there was a knocking noise. Since this is an engine that had already been replaced due to a recall, and now symptoms have returned I suspect engine might have failed again. I have always done my oil changes and have not had any issues. I had car towed towed to San Jose and contacted a mobile oil service to have oil drained out and replaced. When he was finished he said there were particles in oil removed and suspected engine had failed and I should not drive. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine
Filed Mar 21, 2024IL

NHTSA Recall

Engine
Filed Mar 16, 2024RI

Could be the barons

Unknown or Other
Filed Mar 7, 2024OH

Unknown. The vehicle has this recall and Kia still doesn’t have a solution. It’s been more than 6 months and I want to ensure my car is safe to drive. I am unsure if there are any issues with my car, I am simply just wanting a remedy for this part if the car is being recalled.

Service Brakes, Hydraulic
Filed Mar 5, 20245,500 milesGA

The contact owns a 2011 Kia Optima. The contact stated that the brakes were making an abnormal noise. There was an abnormal odor of fuel detected. The windshield was fogging up. The engine warning light was illuminated and turned on and off. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 5,500. VIN tool confirms parts not available.

Engine
Filed Mar 4, 2024180,000 milesNC

The contact owns a 2011 Kia Optima. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the vehicle failed to start up after not being drive for a while. The check engine warning was illuminated. The vehicle was taken to a local dealer to be diagnosed with an unknown result. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 180,000.

Complaints 1-50 of 594, newest first, reproduced as filed.

Across model years

Worst on record: 2013
YearComplaintsRecallsFiresDeathsAssessment
2020153030Routine
2019212170Above average
20182332100Above average
2017257390Above average
20167605201Fatalities reported
20151,0104741Fatalities reported
20145917432Fatalities reported
20131,38791144Fatalities reported
20129205770High concern
2011 — this page5945331Fatalities reported
201075120Routine
2009116141Fatalities reported
2008144348Fatalities reported
2007167250Routine
2006155210Routine
2005144010Routine
2004225130Above average
2003141220Routine
2002107340Routine
2001143300Routine

Compare every Optima year →

2011 Kia Optima: questions buyers ask

Is the 2011 Kia Optima a good car?

Going by the federal record, it is one of the Optima years to avoid: owners filed 594 complaints, 3.1 times as many as a typical Optima year. The most common complaint is about the engine (39%). In NHTSA crash tests it scored 5 stars overall.

What is the most common problem with the 2011 Kia Optima?

The engine: 232 of the 594 complaints (39%) are about it. Owners most often say it stalls (24%), knocks, grinds or clunks (23%) and sets off warning lights on the dash (22%). The typical report comes at 101,958 miles.

How many recalls does the 2011 Kia Optima have?

5 safety recalls on file with NHTSA, the most recent filed Sep 25, 2023. 1 of them carries a do-not-drive or park-outside warning. The largest, 23V652000, covered 1,730,192 vehicles. Recall repairs are free at a dealer; whether a specific car still has one open depends on its VIN.

At what mileage do 2011 Kia Optima problems start?

Half of the complaints that record an odometer reading came in before 90,000 miles. For the engine the midpoint is 101,958 miles.

Has NHTSA investigated the 2011 Kia Optima?

Yes, 7 times. The latest, AQ23002 ("Hyundai and Kia ABS Module Fires"), was opened Nov 17, 2023 and is still open.

Are there service bulletins for the 2011 Kia Optima?

The manufacturer filed 228 technical service bulletins and other notices for it with NHTSA, most of them about the engine (71), the electrical system (42) and the steering (31). They include a warranty extension, WTY014_OWNR, filed Jun 11, 2019. A bulletin is a repair instruction to dealers, not a recall: the fix is usually free only under warranty.

Reading this record

1 death reported in complaints filed with NHTSA.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: Sep 25, 2023. Source: NHTSA Office of Defects Investigation.