Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2011 Kia Optima owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2011 Kia Optima. The contact stated that after his wife started the vehicle, she smelled a burning odor within the interior of the vehicle, prompting her to quickly exit. After a visual inspection of the exterior of the vehicle, the contact's wife observed flames emanating from the engine compartment. Local emergency services arrived and were able to extinguish the flames. A police and fire report was filed, with no injuries reported. The vehicle was towed to a tow yard and deemed a total loss. No warning lights were illuminated; however, the contact stated that he observed an intermittent check engine light in the months prior to the failure. The vehicle was taken to the dealer, who diagnosed a failure with the high-pressure fuel pump, and the vehicle was repaired. …
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 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.
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.
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 while driving 37 MPH, he noticed a burning odor, and there was smoke coming from underneath the hood and through the A/C vents. The ABS warning light was illuminated. The contact was able to veer to the side of the road. The vehicle was towed to the residence. The local dealer and several unknown dealers were contacted. The vehicle was not diagnosed or repaired. 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 failure. The failure mileage was approximately 130,000. VIN tool confirms parts not available.
The contact owns a 2011 Kia Optima. The contact stated that upon starting the vehicle, the ABS and the malfunction warning lights were illuminated. 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 dealer informed the contact that the parts were not available. 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 called the manufacturer, but it was an automated phone system. VIN tool confirms parts not available. The approximate failure mileage was 160,000.
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.
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.
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.
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 [redacted] at Classic Kia in Texarkana, TX. After a two hour wait on [redacted], 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. …
Related recalls
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.
NHTSA investigations
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.
Brake complaints in other Optima years
Frequently asked questions
How common are brake problems on the 2011 Kia Optima?
NHTSA has 47 complaints about the brakes of the 2011 Kia Optima, 8% of the model year's 594 complaints.
Is there a recall for 2011 Kia Optima brake problems?
Yes — NHTSA recall 23V-652 (control unit/module, Sep 25, 2023). Recall repairs are free at authorized dealers.
At what mileage do 2011 Kia Optima brake problems start?
Half of the complaints with a recorded mileage happened before about 72,000 miles, and 15% before 25,000 miles.
Is it dangerous?
Owners linked 5 crashes, 1 fire and 1 injury to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
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.