I own a 2011 Kia Optima, VIN [XXX]. My vehicle was taken to Rockwall Kia on August 25, 2026, for completion of the federal safety agency 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 the federal safety agency 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)
2011 Kia Optima electrical problems
63 complaints (11% of all complaints for this car). Typical mileage when it fails: 86,300. 1 crash reported.
- owner complaints
- 63
- of this car's complaints
- 11%
- typical mileage
- 86,300
- crashes
- 1
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
Kia Optima electrical problems in other years
Specific symptoms reported on the 2011 Kia Optima electrical
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
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 (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 used in the above-mentioned vehicles.As a result of this PE, Kia has issued the federal safety agency Recalls 20V‑750 and 21V‑844 to address potential engine failures and fires in certain Kia vehicles equipped with various engine types.Additional information on these and other related recall actions is available in the downloadable version of this resume available at addition, ODI has upgraded this PE to an Engineering Analysis (EA) 21-003 which will focus on potential recall scope concerns and recall remedy concerns related to the engine failure-related recalls mentioned above and conducted previously.See the EA21-003 Opening Resume available at for more information.Also available in the downloadable version of this resume is a list of the reference numbers for the 444 ODI reports, or Vehicle Owner Questionnaires (VOQs), cited above which ODI received through mid-November 2021.Note that the Manufacturer reports cited above are customer complaints received through March 2019.
PE19004
Non-crash Vehicle Fires
In a letter dated June 11, 2018, the Center for Auto Safety (CAS) petitioned the federal safety agency 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 the federal safety agency regarding non-crash fires on these vehicles compared to other similar vehicles. The Office of Defects Investigation (ODI) had already opened Recall Queries (RQ17-003 and RQ17-004) on all Kia and Hyundai vehicles equipped with Theta II engines for engine failures that may cause stalling and fires.The queries cover most of the petition subject Optima, Sorento, Sonata, and Santa Fe vehicles but not any of the subject Soul vehicles.On August 21, 2018, ODI opened a Defect Petition (DP18-003) to evaluate whether to grant or deny the CAS petition. ODI sent Information Request letters to Kia and Hyundai (September and October 2018) requesting information on all engine and non-engine related fires in the petition vehicles.ODI performed extensive analysis on the information obtained from Kia and Hyundai. During the DP18-003 analysis, Kia and Hyundai each initiated three additional safety recalls related to engine compartment fires on certain petitioned and non-petitioned vehicles (nearly 740,000 total vehicles: Recalls 18V‑907, 18V‑934, 19V‑101, 19V‑063, 19V‑120, and 19V‑204). Based on ODI?s review of the applicable materials, including responses to Information Requests sent to multiple manufacturers, Vehicle Owner Questionnaires (VOQ), and Early Warning Data, the federal safety agency decided to grant the petition.The CAS petition was granted on March 29, 2019. Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) have been opened to assess the scope, frequency, and potential safety-related consequences of alleged defects relating to non-collision vehicle fires in the 2011-2014 Kia Optima and Sorento, 2011-2014 Hyundai Sonata and Santa Fe, and 2010-2015 Kia Soul.Attached is a list of the reference numbers for the 404 VOQs cited above.
DP18003
What 2011 Kia Optima owners say
Most recent owner complaints, unedited.
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.
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.
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
Hydraulic Electronic Control Unit (HECU) experienced an electrical short circuit and engine hardly running.
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 than me paying $45/day out of pocket. they Stated that I personally would be charged to do a full diagnostic test to confirm that there are no safety issues, however corporate stated that it was required in order to get my car back. This has been an absolute nightmare, I am also wanting to know if ada would get involved in something like this as they are not making any type of reasonable accommodation for me. There has to be a law preventing this that they are required to provide a vehicle unt
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.
The contact owns a 2011 Kia Optima. The contact received notification of the federal safety agency 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.
Defect discovered by KIA September 2023 Affected owners not notified until November 2023 As of March 1, 2024, no updates. After six months, if no "fuse" is available, entire HECU should be replaced. Vehicle's exterior has significantly deteriorated since being required to park outside. Additionally, seriousness of fire hazard restricts use of car.
HYDRAULIC ELECTRONIC CONTROL UNIT (HECU) can start a fire, I was informed not to park the car in a garage or near other cars, also it can also catch fire while driving the car!! I was notified months ago of this problem !! I called a KIA dealer that got me no where !! KIA recall #SC284TF
Questions about the 2011 Kia Optima electrical
Does the 2011 Kia Optima have electrical problems?
Owners have filed 63 complaints about the electrical of the 2011 Kia Optima, 11% of all its complaints.
At what mileage do 2011 Kia Optima electrical problems start?
The typical (median) mileage in owner complaints is 86,300 miles.
Was there a recall on the 2011 Kia Optima electrical?
There is no recall for this problem on this model year.
What year does the Kia Optima have the most electrical problems?
The Kia Optima model years with the most electrical complaints are 2013 (146 complaints), 2015 (135 complaints) and 2012 (123 complaints).
Other 2011 Kia Optima problems
Engine 262Steering 100Lights 88Brakes 47Airbags 31Fuel system 27Transmission 25Body 21Acceleration 19Suspension 18Visibility 11Driver assistance 9Wheels 9Tires 3Seat belts 2Seats 2
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