2013 Kia Optima brakes problems

Filed Sep 18, 2026 · Brakes · 111,000 miles · TX

The contact owns a 2013 Kia Optima. The contact stated that the vehicle was unable to start due to the battery being drained from the Hydraulic Electronic Control Unit (HECU) remaining on while the vehicle was turned off. After recharging the battery, the HECU made a buzzing sound while the battery was no longer charging. Additionally, the vehicle went into LIMP Mode while driving, and the ABS, traction control, and several other unknown warning lights were illuminated. A burning odor was inside the vehicle. The contact was concerned about a fire risk. The vehicle was taken to the dealer and determined that the HECU had failed and needed to be replaced. The dealer requested maintenance records for the vehicle. The manufacturer was notified of the failure by phone, and a case was filed. The failure mileage was approximately 111,000.

Filed Aug 19, 2026 · Brakes, Engine · TX · fire

On July 14, 2026, the vehicle's engine was replaced by an authorized dealership under an official Kia recall. On August 16, 2026, while driving on the highway, heavy smoke suddenly began emitting from the engine compartment. When attempting to slow down, the braking system suffered a total loss of power and failed completely. To stop the vehicle, it had to be steered into the highway median to intentionally scrape against it to force a stop. Immediately upon exiting the vehicle, heavy flames were observed under the engine compartment before completely engulfing the front of the car. The fire department extinguished the fire, and the vehicle is a total loss.

Filed Jul 23, 2026 · Brakes · GA

I am writing to formally report a dangerous safety defect involving the braking system and the Hydraulic Electronic Control Unit (HECU) on my 2013 Kia Optima Hybrid. While operating the vehicle, severe warning lights illuminated on the dashboard indicating an immediate braking system and stability control failure. A diagnostic scan revealed active fault code C1237, pointing specifically to a primary pressure sensor signal failure embedded inside the internal HECU assembly.This issue presents a severe safety hazard. The failure compromises the vehicle's electronic brake assist, anti-lock braking system (ABS), and active stability systems. This results in unpredictable pedal feel and significantly increased stopping distances, drastically elevating the risk of a high-speed collision.Furthermore, this vehicle architecture relies heavily on clean voltage from the 12-volt battery system. Sudden drops in battery performance appear to trigger cascading communication faults within the HECU network, causing the vehicle to lose crucial safety systems without adequate warning.Kia is aware of severe electrical and internal component defects within the HECU modules of this generation, as evidenced by Safety Recall SC284 (the federal safety agency Campaign 23V652000) for HECU internal electrical shorts and engine fire risks. However, dealerships are treating related sensor failures inside the exact same HECU assembly (such as the internal primary pressure sensor) as customer-pay maintenance issues, rather than recognizing them as symptoms of a fundamentally defective or failing control unit. Dealership service centers are recommending piecemeal, expensive part replacements (like pedal travel sensors) that do not resolve the underlying safety risk of an internally failing HECU module.I request that the federal safety agency investigate whether internal pressure sensor failures (Code C1237) and related electronic brake module collapses on 2011–2015 Kia Hybrid models are connected to the known sub-component defects wi

Filed Apr 13, 2026 · Brakes, Driver assistance · CA

Brake pedal loses pressure and disengages with brakes. Traction light, maintenance light, hybrid system warning message, check brakes message and parking brake intermittently turns on and off. I called Kirby Kia of Ventura a few weeks ago and let them know about my issue with the car. I explained that I took the car to a mechanic and the diagnostic they did stated the issue with the car could be because of one of the recalls. On 4/10/26 I took my vehicle to Kirby Kia of Ventura for the recalls and asked if they could do the diagnostic. Raul from Kia was the service rep that spoke with me. He stated they would do the recalls and then, if needed, they would perform the diagnostic. Later that day Raul called me and stated the recalls were completed and no issues were found. Several items were found from Kia's point inspection, but none related to the issue at hand. I then asked Raul if they could perform the diagnostic to know what was wrong with my car and he stated that they could do the diagnostic on Monday, 4/13/26. Raul stated he would give me a call around 10 to 11 am, to discuss any issues. Raul called at 10:49 am, and stated no lights on the dashboard have come on and he didn't want to do the diagnostic because the lights weren't on. Kirby Kia of Ventura service department are crooks and only want to assist you if they get money out of you. My car still has the same issue, possibly damage to the HECU from the recall, but Kirby Kia didn't want to run the diagnostic on my car to find out if it was damaged. Kirby Kia of Ventura is a horrible organization and I will never purchase another Kia vehicle for this reason.

Filed Apr 6, 2026 · Brakes · 179,000 miles · GA · fire

The contact owned a 2013 Kia Optima. The contact stated that while driving at an undisclosed speed, the front of the vehicle started excessively smoking and caught fire. No warning lights illuminated. The fire was extinguished by the local fire department, and a fire report was filed. A police report was not filed. The contact received notification of the federal safety agency Campaign Number: 23V652000 (Service Brakes, Hydraulic). The dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was made aware of the failure via customer care support since no representative was reached via the phone line. The approximate failure mileage was 179,000.

Filed Mar 20, 2026 · Brakes, Steering · IL

Vehicle: 2013 Kia Optima SXL VIN: [XXX] While driving on a highway at approximately 55–58 mph, the rear driver-side electronic parking brake (EPB) motor housing failed with a loud bang. Immediately after, there was heavy smoke and a strong burning smell. The vehicle became very difficult to drive, and the wheel began screeching and dragging as if the brake had locked. The failure appears to have caused the rear brake caliper to seize while the vehicle was in motion. This created a dangerous driving situation at highway speed and could have caused a crash. The brake system component that failed appears to be the electronic parking brake actuator/motor assembly attached to the rear caliper. This was a sudden mechanical failure, not normal brake wear, and it occurred while driving at speed. Kia care case number: XXX INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 12, 2026 · Brakes, Electrical · 111,862 miles · TX

The contact owns a 2013 Kia Optima. The contact stated that while driving 75 MPH, the vehicle lost motive power. The accelerator pedal was depressed; however, the vehicle eventually stalled on the side of the road. The key, battery, oil, and engine warning lights were illuminated. There was an abnormal ticking sound coming from the vehicle. The contact stated the failure was related to the federal safety agency Campaign Number: 23V652000 (Service Brakes, Hydraulic). The vehicle was towed to an independent mechanic, where it was determined that the engine had seized. The engine failed to turn over. The mechanic had previously performed a routine oil change. The vehicle was towed to the local dealer, where it was diagnosed with low voltage. The spark plugs were checked, there were no oil leaks, and the vehicle was diagnosed with catastrophic engine failure. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 111,862.

Filed Mar 9, 2026 · Brakes · ID

HECU failure on my 2013 Kia. My specific VIN # is not included in this repair but the year make and model are under recall sc197. My brakes are going all the way floor. There is a leek internally inside the hydraylic electonic control unit which is a fire hazard as well as a hydraulic failure. This is a massive safety and liability concern.

Filed Feb 20, 2026 · Brakes, Engine · 193,876 miles · GA · fire · 1 injury

The contact owned a 2013 Kia Optima. The contact stated that while driving the vehicle, the contact became aware of black smoke coming from the floorboard with a burning plastic odor, and the battery warning light illuminated. The contact called her husband and was informed to exit the vehicle. The contact exited the vehicle and seconds later the vehicle exploded. The front of the vehicle blew up onto the windshield and the steering wheel detached and struck the driver’s side seat. The fire was extinguished by the Fulton County Fire Department. A Fire Report and Police Report were filed; however, the reports were not yet provided to the vehicle owner. The contact experienced severe emotional distress. The contact stated due to the emotional distress of the fire, she suffered a miscarriage from the stress and had scratches from having to jump out of the window. There was no medical assistance sought. Several personal items inside the vehicle were also lost due to the fire and additionally, the contact lost employment due to the fire. The VIN was included in the federal safety agency Campaign Number: 23V652000 (SERVICE BRAKES, HYDRAULIC); however, the vehicle had not been repaired prior to the fire. The vehicle was towed to a tow yard then to a Kia dealer. The vehicle was destroyed. The manufacturer was notified of the failure. The failure mileage was 193,876.

Filed Feb 9, 2026 · Brakes · 160,000 miles · FL · fire

The contact owned a 2013 Kia Optima. The contact stated that while his niece was driving the vehicle at 65 MPH, a strong fuel odor began to emit from the vehicle without warning. The vehicle then began to violently shake as the contact's niece began to exit the highway. Upon pulling over and exiting the vehicle, black smoke began to emit from the vehicle as both police and fire officials were in the vehicle's vicinity and witnessed the fire. As the vehicle quickly became engulfed in flames, the fire department quickly arrived at the scene and extinguished the fire. No injuries were reported, and a police report was filed. The vehicle was towed to the niece's home, where it remained in her possession. Upon investigation, the contact discovered that the vehicle was included in the federal safety agency Campaign Number: 23V652000(Service Brakes, Hydraulics). The manufacturer was notified of the failure, and an investigator was scheduled to visit the niece's home and inspect the vehicle; the investigator never arrived, and the vehicle had yet to be inspected. The vehicle was destroyed as a result of the fire. The failure mileage was approximately 160,000.