VehicleVerdict

2012 Kia Optima engine problems

The 2012 Kia Optima has 416 engine complaints filed with NHTSA — 33% of the year's total, and up sharply from the prior model year.

416

Engine complaints

33%

Share of year

4

Crash-involved

2

Related recalls

Engine complaints by year

Related recalls

18V907000EngineDecember 19, 2018 · 71,653 units

Defect

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.

17V224000EngineMarch 31, 2017 · 618,160 units

Defect

Kia Motor Company (Kia) is recalling certain 2011-2014 Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles. Machining errors during the engine manufacturing process may cause premature bearing wear within the engine.

Consequence

Bearing wear may result in the engine seizing, increasing the risk of a crash.

Remedy

Kia will notify owners, and dealers will inspect the engine assembly, and replace the engine if necessary, free of charge. The recall began June 20, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC147.

What owners report

MY CAR JUST TURNED OFF WITH SEVERAL FLASHING LIGHTS WHILE DRIVING. I TRIED TO START THE CAR AND NOTHING BUT A SLIGHT TICK. I RETURNED TO THE CAR WITH JUMPER CABLES TO SEE IF IT WAS THE BATTERY AND BEFORE I TRIED THE JUMPER CABLES I TRIED ONE MORE TIME TO START AND THE ENGINEER CAUGHT ON FIRE. THE…

Complaint filed with NHTSA · Engine · September 1, 2018 · fire

Common questions

How many engine complaints does the 2012 Kia Optima have?

NHTSA has 416 complaints about the 2012 Kia Optima engine — 33% of all complaints filed for that model year.

Are there recalls for the 2012 Kia Optima engine?

Yes — 2 NHTSA recall campaigns for this model year are tied to the engine: 17V224000, 18V907000.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.