2015 Kia Optima problems
What owners reported to NHTSA, at what mileage, and every safety recall for this model year.
- Complaints are unverified owner reports. NHTSA does not confirm each one.
- No denominator: popular cars get more complaints. Counts are not failure rates; a best-seller will show more reports than a rare model.
Most reported problems
Complaints by component. One complaint can name more than one component, so these add up to more than 1,009.
When problems show up
Reports by odometer reading at the time of the problem, top components. Each bar is a 25,000-mile band, labeled by where it starts (0 = 0–25k miles). Reports without mileage are left out.
Engine
Unknown or other
Electrical system
Safety recalls (4)
Recalls that cover the 2015 Kia Optima. Some apply only to certain trims or build dates. This page cannot tell whether a specific car's recall work was done.
Check a specific VIN's open recalls on nhtsa.gov
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…
Full recall text and remedy
Summary: 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.
Consequence: An engine compartment fire while parked or driving can increase the risk of injury.
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. 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/module
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…
Full recall text and remedy
Summary: 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.
Consequence: An electrical short in the HECU increases the risk of a fire while parked or driving.
Remedy: 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/module
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)…
Full recall text and remedy
Summary: 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.
Consequence: If the HECU short circuits, there is an increased risk of an engine compartment fire.
Remedy: 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.
Engine; fuel system, gasoline › delivery › hoses, lines/piping, and fittings
Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under…
Full recall text and remedy
Summary: Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pipe that connects to the fuel pump outlet may have been damaged, misaligned or improperly torqued during the engine replacement procedure, possibly causing a fuel leak.
Consequence: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC172.
Questions to ask the seller
Has the engine had any repairs, oil leaks, or check-engine lights? Ask for the invoices and listen for knocking or ticking on a cold start.
622 owner complaints mention the engine, half of the reports with mileage are between 62,156 and 112,000 miles.
Any battery drain, dashboard warning lights, or electrical repairs? Test every switch, screen, and power accessory before buying.
135 owner complaints mention the electrical system, half of the reports with mileage are between 52,750 and 100,677 miles.
Any rust, frame damage, or body repairs? Look underneath and ask whether the car has been in an accident.
76 owner complaints mention the body or structure, half of the reports with mileage are between 40,000 and 64,000 miles.
Any steering noises, pulling, stiffness, or loss of power assist? Turn lock to lock while parked and listen.
69 owner complaints mention the steering, half of the reports with mileage are between 16,500 and 77,000 miles.
Has the transmission been serviced or repaired? On the test drive, watch for slipping, delayed engagement, or harsh shifts.
49 owner complaints mention the transmission or drivetrain, half of the reports with mileage are between 63,500 and 94,700 miles.
Has the open recall work been done? Ask for dealer service records, and check the VIN on nhtsa.gov/recalls.
NHTSA lists 4 recall campaigns for this model year.
Other Kia Optima years
Owner complaints per model year (2010–2022). Older cars have had more time to collect reports.
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