2013 KIA Optima Service Brakes, Hydraulic Problems

Source: NHTSA · Updated Oct 9, 2026 · 53 complaints analyzed

Owners have filed 53 complaints with NHTSA about service brakes, hydraulic problems on the 2013 KIA Optima, 4% of all complaints for this model year. Half of the reports with a mileage happened before 130,000 miles. The words owners use most often: “brakes hydraulic contacted” (15% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Brakes hydraulic contacted: mentioned in 8 of 53 complaints (15%)
  • Burning odor: mentioned in 6 of 53 complaints (11%)
  • Fire department: mentioned in 6 of 53 complaints (11%)

At what mileage do service brakes, hydraulic problems happen?

Based on 29 complaints that reported the odometer reading.

Under 10k miles0 · 0%
10k–25k miles0 · 0%
25k–50k miles0 · 0%
50k–75k miles1 · 3%
75k–100k miles3 · 10%
100k–150k miles13 · 45%
150k+ miles12 · 41%

How serious are the reports?

Of 53 complaints, 8 a fire, 1 an injury.

KIA Optima service brakes, hydraulic complaints by model year

Peak: 2013, with 53 complaints
2001: 122001122002: 992003: 3200332004: 552005: 2200522007: 222008: 4200842009: 442011: 212011212012: 35352013: 532013532014: 17172015: 412015412016: 222019: 120191

n = 211 complaints · Source: NHTSA

Model yearService Brakes, Hydraulic complaintsShare of that yearMedian miles
2019 Optima10%20,000
2016 Optima20%103,417
2015 Optima414%113,500
2014 Optima173%108,374
2013 Optima534%130,000
2012 Optima354%130,000
2011 Optima214%129,000
2009 Optima43%19,058
2008 Optima43%2,600
2007 Optima21%17,750
2005 Optima21%42,000
2004 Optima52%4,532
2003 Optima32%54,500
2002 Optima98%45,593
2001 Optima128%15,000

When owners reported it

Peak: 2024, with 25 complaints
2023: 152023152024: 252024252025: 7202572026: 620266

n = 53 complaints · Source: NHTSA

Related recalls (3)

Service brakes, hydraulic:antilock/traction control/electronic limited slip:control unit/modulePark outsideSep 25, 2023 · NHTSA campaign 23V652000 · 1,730,192 vehicles

Problem: 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. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.

Risk: An engine compartment fire while parked or driving can increase the risk of injury.

Fix: 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. Interim notification letters, notifying owners of the safety risk, were mailed November 14, 2023. Owner notification letters were mailed March 29, 2024 through June 18, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC284.

Service brakes, hydraulic:antilock/traction control/electronic limited slip:control unit/modulePark outsideMay 10, 2021 · NHTSA campaign 21V331000 · 440,370 vehicles

Problem: Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles previously recalled under recall 20V-519. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.

Risk: An electrical short in the HECU increases the risk of a fire while parked or driving.

Fix: Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. Dealers will install a new multi-fuse, and inspect the HECU for leaks, replacing the HECU if necessary, free of charge. Owner notification letters were mailed on July 2, 2021. This recall supersedes previous NHTSA recall number 20V-519. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC212.

Service brakes, hydraulic:antilock/traction control/electronic limited slip:control unit/modulePark outsideAug 27, 2020 · NHTSA campaign 20V519000 · 440,370 vehicles

Problem: Kia Motors America (Kia) is recalling certain 2013-2015 Optima and 2014-2015 Sorento vehicles. Brake fluid may leak inside the Hydraulic Electronic Control Unit (HECU), possibly resulting in an electrical short.

Risk: If the HECU short circuits, there is an increased risk of an engine compartment fire.

Fix: Kia will notify owners, and dealers will inspect the HECU for leaking brake fluid and replace the HECU if necessary, free of charge. Owners are advised to park outside and away from other vehicles and structures until the recall repair is completed. The recall began October 20, 2020. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC197.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

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…

Received Sep 18, 2026 · NHTSA complaint 11765377

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…

Received Apr 6, 2026 · NHTSA complaint 11729515

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…

Received Mar 12, 2026 · NHTSA complaint 11723905

Frequently asked questions

Do all 2013 KIA Optimas have service brakes, hydraulic problems?

No. NHTSA has 53 owner complaints about service brakes, hydraulic for the 2013 KIA Optima (4% of the 1,386 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2013 KIA Optima service brakes, hydraulic?

Yes: 3 safety recalls list service brakes, hydraulic. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do service brakes, hydraulic problems start?

The median reported mileage is 130,000 miles: half of the reports with a mileage came before that.

What do owners say about service brakes, hydraulic problems on the 2013 KIA Optima?

The most frequent phrase is “brakes hydraulic contacted”, in 8 of 53 complaints, followed by “burning odor” (6).

Other 2013 KIA Optima problems

See all 2013 KIA Optima problems or service brakes, hydraulic problems across all Optima years.