Most common 2011 Kia Optima problems
Share of the 594 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Kia Optima complaints by model year
Best Optima years: 2010, 2009, 2008. Years to avoid: 2013, 2015, 2012, 2016, 2011. Compare all years →
2011 Kia Optima recalls (5)
Service brakes, hydraulic › Antilock/traction control/electronic limited slip › Control unit/module
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.
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.
Engine
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.
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.
Air bags › Air bag/restraint control module
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.
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…
Engine and engine cooling › Engine
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.
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.
Exterior lighting › Brake lights › Switch
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.
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.
NHTSA defect investigations
Federal safety investigators have looked into 7 possible defects involving the 2011 Kia Optima:
Scope and Timeliness
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.
Non-crash Vehicle Fires
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…
Engine Fires
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.
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 spanning Model Years (MY) 2005-2021.
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.
Non-crash Vehicle Fires
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.
Hyundai and Kia ABS Module Fires
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.
What 2011 Kia Optima owners say
Engine & cooling all 262 →
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.
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.
Steering all 100 →
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.
The contact owns a 2011 Kia Optima. The contact stated that while driving at high speeds, the steering wheel seized. After the steering wheel was released, an abnormal sound was heard coming from the steering wheel. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The vehicle had previously had the steering column and steering rack replaced at the dealer; however, the failure recurred. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 120,000. The VIN was unavailable.
Lights all 88 →
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.
Low beam headlights on my 2011 KIA Optima with 150,000 miles are bright to look at them, however the beam pattern on on the roadway is terrible. I have tried replacing the bulbs with brightest bulbs, checked voltages and grounds. After checking over 10 forums I have found that the reflective service on the headlight housing has degraded and lost its reflective value causing a very safe condition. 1 person disassembled the headlight unit and installed foil tape, stating this corrected the issue. I have attempted to contact KIA with out a return response. I feel this should be a KIA recall issue.
2011 Kia Optima engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.4L 4-cyl hybrid | 6-speed automatic | FWD | 34 / 38 / 36 |
| 2.4L 4-cyl | 6-speed automatic | FWD | 23 / 33 / 27 |
| 2.4L 4-cyl | 6-speed manual | FWD | 24 / 34 / 27 |
| 2.0L 4-cyl turbo | 6-speed automatic | FWD | 22 / 33 / 26 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2011 Kia Optima a good car?
Based on 594 owner complaints filed with NHTSA, the 2011 Optima rates avoid: 3.4× as many complaints as a typical year of the Optima at the same age. It is one of the Optima years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2011 Kia Optima?
The engine & cooling — 262 complaints, 44% of all complaints for this model year, most often about engine › oil/lubrication › seals/gaskets. Next are the steering (100) and lights (88).
How many recalls does the 2011 Kia Optima have?
There are 5 recalls for the 2011 Kia Optima, the most recent from September 25, 2023 (control unit/module). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Kia Optima?
The best years by complaints, compared at the same age, are 2010, 2009 and 2008. Years to avoid or approach with caution: 2013, 2015, 2012, 2016 and 2011. See the full Kia Optima years comparison.
At what mileage do 2011 Kia Optima problems happen?
The median mileage reported in complaints is about 90,000 miles; 21% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.