2015 Kia Optima · symptom sheet
Brakes grind, pulse or wear early
- 89owner reports
- 90,000median miles
- 5involved a crash
Newest report Jul 14, 2026 · checked Oct 2, 2026
89 of the 1,006 complaints on this car describe brake wear.
Narrower sheets: Brake warning light stays on (27 reports)
Tick what matches of 89 reports
Brake wear on other Optima years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2016, 2017, 2018, 2019, 2020.
What this problem usually is
Brake reports cover a wide spread of symptoms. Grinding or squealing is common, and so is a pulsing pedal or a shake through the car when stopping. Others describe pads and rotors worn out long before they expected, a brake warning light, or a pedal that goes soft or sinks toward the floor. The most serious ones say the car didn't stop in time.
What got replaced
Owners who name the part that was replaced mention the ABS module (11 reports).
Recalls and investigations
3 recalls on the brakes cover the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.
The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.
Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.
All 4 recalls on the 2015 Kia Optima, with the owner complaints on each recalled system
NHTSA investigations into the brakes on the Optima
Hyundai and kia abs module fires. Open.
When it happens
The middle half of failures fell between 58,556 and 125,000 miles, from the 46 reports that gave a mileage.
What owners wrote
“While driving on freeway lights, flicker and car just dies. Steering goes out and lose control of vehicle. Then will randomly start up again”
Filed Jul 23, 2024
“The check oil and my fans stopped working and also my fuel pump and also my battery light went on”
Filed Jul 6, 2024
“- The issue occurred for the first time 4/30/2024 - The following 3 warning lights appeared while I was driving: ABS, Traction Control, and Brake - I took the vehicle immediately to a facility to have the warning codes read. The printout showed: C2402 & C2380 - The warning lights remain illuminated every time the vehicle is turned on - I believe there is a safety concern of a potential fire or brake failure”
Filed Apr 30, 2024
“Car stalled. Received check Brakes warning. ABS pump motor voltage fault message.”
Filed Mar 24, 2024
Should you keep driving it?
This page can't tell you that. 5 of 89 reports involved a crash and 4 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine failure, knocking or rod bearing 319 reports
- Engine stalls or loses power while driving 256 reports
- Check engine light or misfire 108 reports
- Vehicle fire 70 reports
- Paint peels or body rusts 56 reports
- Engine rattles or ticks 49 reports
- Burns oil or oil level rises 37 reports
- Battery dies or the car will not start 30 reports
- Airbag warning light or recall 26 reports