Problems · by component

2012 Kia Sorento engine problems

461 owner complaints to NHTSA about the 2012 Kia Sorento cite engine, 52% of all 880 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
461
52% of all complaints
Crashes
2
Reported by owners
Fires
53
Reported by owners
Injuries
9
Reported by owners
01 —Owner reports

What owners say about the engine

Verbatim from NHTSA complaints, newest first
“I am filing this complaint regarding a sudden and unexpected engine failure in my 2012 Kia Sorento LX equipped with the 2.4L Theta II engine. Vehicle Information: Year: 2012 Make/Model: Kia Sorento LX Engine: 2.4L Theta II VIN: [XXX] While driving, my vehicle experienced a sudden engine failure and lost power, leaving the vehicle inoperable. This occurred without warning. The vehicle received routine maintenance, including regular oil changes, and the failure was not due to intentional neglect or misuse. I am concerned because this vehicle is equipped with the Kia Theta II 2.4L engine family, which has been associated with previous recalls, investigations, settlements, and numerous consumer complaints involving engine seizure, premature failure, stalling, and safety concerns. I understand my specific VIN may not currently fall within an active recall; however, my vehicle has experienced the same type of catastrophic engine failure reported by other Kia owners with similar engines. I am concerned that vehicles outside current recall VIN ranges may still be experiencing the same defect. An unexpected engine failure while driving creates a serious safety concern…”
Owner complaint to NHTSAFiled Jul 29, 2026EngineODI 11753475
“The contact owned a 2012 Kia Sorento. The contact’s spouse stated that while driving at an undisclosed speed, the vehicle suddenly lost motive power with no warning lights illuminated. The contact's spouse noticed smoke coming from the front of the vehicle, prompting the contact’s spouse to pull over to the side of the roadway. Moments later, the front of the vehicle caught fire. The local fire department responded to the scene and extinguished the fire; however, the cause of the fire had not yet been determined. The vehicle was completely consumed by the fire and deemed destroyed. No police report was filed, The manufacturer was not notified of the failure. The contact’s spouse stated that the incident was extremely traumatic and believed the vehicle posed a serious safety hazard. The failure mileage was not available.”
Owner complaint to NHTSAFiled May 7, 2026EngineFire reportedODI 11736289
“The clock spring needs fixed no features including the horn is working in my airbag light is staying on. Also I now have a loud knock in my motor I understand this should fall under the extended 15 yr 150k warranty; 2012 Kia vehicles (specifically the Sorento) with V6 engines are covered under major safety recalls for engine failure and fire risks. The primary issue involves metal debris from manufacturing that can cause premature engine bearing wear, stalling, and fire. You should check your VIN on the NHTSA site or Kia's recall page to confirm, as these recalls are still active.”
Owner complaint to NHTSAFiled Apr 27, 2026Steering, Air bags, EngineODI 11734042
“Engine warning lamp illuminated as the engine lost some power. Code was diagnosed as the knock sensor issue. Unit taken to mechanic to evaluate and diagnose. Repair shop notified us that based on the sensor, the engine could succumb to a failure at any time. Engine oil was flushed, cleaned, and replaced. Code was addressed currently. This is similar to the failures observed by other engines in this class, however, it does not appear this engine is part of the lifetime warranty or recall.”
Owner complaint to NHTSAFiled Mar 26, 2026EngineODI 11727241
“The contact owns a 2012 Kia Sorento. The contact stated that while driving 75 MPH, the check engine warning light was flashing on the instrument panel. There was a misfire coming from the engine. The contact stated that the vehicle was sputtering while depressing the accelerator pedal and cautiously drove to the nearest independent mechanic. The mechanic used a code scanner and retrieved a fault code for an inoperable knock sensor and wiring harness. The vehicle was also taken to another independent mechanic who provided the same information. The dealer was notified of the failure, and the contact was informed that there were no recalls on the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.”
Owner complaint to NHTSAFiled Mar 25, 2026EngineODI 11726983
“Engine Knocking - Car enters limp mode and has a known recall. KSDS was updated in prior recall and engine has failed at 118k Miles. Car has been well maintained. Kia asks for maintenance records, records were provided and they will not take action. KIA avoided fixing the engine and just updated software to tell you when this happens and now that the engine is failing will not honor their warranty or do work on the car despite sending maintenance records of over 10 years”
Owner complaint to NHTSAFiled Mar 9, 2026EngineODI 11722989

Showing 6 of 461 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Engine

Free remedy

Kia Motors America (Kia) is recalling certain 2012-2013 Sorento, 2012-2015 Forte and Forte Koup, 2011-2013 Optima Hybrid, 2014-2015 Soul, and 2012 Sportage vehicles. An engine compartment fire can occur while driving.

EngineReported Dec 2, 2020NHTSA 20V750000
Data from NHTSA Recalls API · synced Nov 3, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.