Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Kia Sorento owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2012 Kia Sorento. The contact stated that while his wife was driving at 65 MPH, an abnormal fuel odor began to emit from the vehicle without warning. His wife was then waved down by a fellow motorist that alerted her that the vehicle had caught fire. The contact stated that his wife had difficulty stopping the vehicle as depressed the brake pedal. Once the vehicle was stopped, an unknown color smoke filled the vehicle's front cabin as she and the other occupants exited the vehicle. No occupants were injured and no medical assistance was rendered at the scene. The vehicle was extinguished by the fire department and a fire report was filed. In the fire report, the investigator linked the cause of the failure to NHTSA Campaign Number: 18V907000(Fuel System, Gasoline; Engine); however, his vehicle was not included in the recall. …
The contact owned a 2012 Kia Sorento. The contact stated that while the vehicle was parked in her carport, she was awakened by her son that a fire had ignited and that the vehicle was in flames. The contact then stated that the fire from the vehicle had extended to her home living room. As a result, half of the house was in flames. The contact stated that she and her family were able to exit her home to safety and then notified the fire department. The fire department had extinguished the fire. No injuries were sustained. No medical attention was required. The family's iguana pet passed away due to the fire. The contact then stated that the vehicle was towed to a tow lot and inspected by the insurance company and that the source of the fire was near the carport area and may have been electrical related but was to be determined. …
The contact owned a 2012 Kia Sorento. The contact stated that the vehicle stalled while driving at approximately 30 MPH as the battery and alternator warning lights illuminated. Another driver then alerted the contact that the vehicle had caught fire under the hood. The contact merged to the side of the road and exited the vehicle. The contact mentioned that a third of the vehicle had been engulfed in flames. The fire department extinguished the fire. The contact sustained injuries to her knee from the door while attempting to exit during the incident. Medical attention was required. The vehicle was towed to an impound lot and deemed totaled by the insurance agency. A fire report was filed but there was no police report filed. The manufacturer was made aware of the failure and opened a case. …
The contact owns a 2012 Kia Sorento. The contact stated that, while driving at 60 MPH, she observed smoke emanating from the engine compartment, prompting her to attempt to pull to the shoulder of the roadway. During the attempt, the contact stated that she then heard an abnormal pop, after which the vehicle lost motive power, and within a moment, the entire front end of the vehicle was engulfed in flames. Upon exiting the vehicle and being assisted by bystanders, the contact was informed that the bystanders had attempted to alert her on the road as they had observed flames emanating from underneath the vehicle. No warning lights were illuminated. The vehicle was towed to a storage facility but had yet to be deemed a total loss by the contact's insurance provider. A fire report was filed. A police report was not filed, and injuries were not reported. …
The contact owned a 2012 Kia Sorento. The contact stated that while driving at an undisclosed speed, the malfunction indicator lamp warning light illuminated and the contact heard a loud sound. The contact stated that the sound was like something had fallen from underneath the vehicle. In addition, the contact noticed white smoke that exited the rear exhaust and white smoke that exited from under the front hood of the vehicle. The contact stopped the vehicle and exited the vehicle. The vehicle was engulfed in flames. The local Fire department and Police department arrived on the scene. A police and fire reports were filed however limited information for the reports was available. The vehicle was towed to a tow yard. The manufacturer inspected and determined that the failure was no fault of the manufacturer. The manufacturer was made aware of the failure. …
The contact owns a 2012 Kia Sorento. The contact stated while driving at 10 MPH, the vehicle stalled inadvertently and had a burning odor. There were no warning lights illuminated. The contact was unable to veer to the side of the road. The vehicle was towed to an independent mechanic where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The contact became aware that the VIN was included in NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling); however, the dealer informed the contact that the recall did not apply to her vehicle as she was not the original owner. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 187,000. Parts distribution disconnect.
The contact owns a 2012 Kia Sorento. The contact stated that after parking and turning off the vehicle, she entered the post office; after 3 to 4 minutes, she was alerted by a consumer that the vehicle had caught fire. The contact noticed fire emerging from the undercarriage. The TPMS warning light had been illuminated prior to the incident. Post office employees attempted to extinguish the fire. The fire department was called and successfully extinguished the fire. There were no reported injuries. Police were also present at the scene. The contact related the failure to NHTSA Campaign Number 23V-652000 (Service Brakes, Hydraulic). The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted; however, no assistance was provided. The failure mileage was approximately 200,000.
The contact owns a 2012 Kia Sorento. The contact stated that on the startup of the vehicle, the engine would begin to knock and blue smoke would emit from the muffler. The contact stated no warning lights were illuminated. The vehicle was diagnosed by the dealer with needing gaskets replaced but the vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 94,000.
The contact owns a 2012 Kia Sorento. The contact received a recall notification for NHTSA Campaign Number: 20V750000 (Engine). The vehicle was taken to the local dealer for the recall repair in January 2020. The dealer inspected the vehicle and diagnosed that no issues were found. The contact stated that while driving approximately 35-40 MPH, the vehicle decelerated to 20 MPH inadvertently. The contact depressed the accelerator pedal however, the vehicle would not exceed 40 MPH. The check engine warning light was illuminated. The contact was able to continue to drive the vehicle. The vehicle was taken to a second dealer (Ed Voyles Kia of Smyrna - Atlanta 2145 Cobb Pkwy SE, Smyrna, GA 30080) where it was diagnosed that the knock sensors malfunctioned and caused the vehicle to go on limp mode; however, the vehicle was not repaired. …
After about 30 minutes of driving the vehicle through the city and letting and sit in the parking lot, oil started leaking heavily. Eventually, the engine became completely seized and the starter began to release smoke nearly starting a fire. I looked inside the engine compartment and saw that the bearing had come loose and made a hole through the block. Before purchasing the vehicle, I used my scan tool to check for codes. No codes came up. No lights were on the dash. Luckily, the engine seized on the parking lot and not in the middle of the highway. The engine and vehicle are available for inspection upon request. I checked to see if the vehicle had any recalls and sure enough, this exact problem showed up as an open recall. The Kia dealership has denied repairing the problem. They said that its not eligible for repair because the "KSDS software" update was not completed. …
Related recalls
Engine
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.
Remedy: Kia will notify owners, and dealers will inspect the engine compartment for fuel and/or engine oil leaks, perform an engine test and make any repairs, including engine replacement, as necessary, free of charge.
Engine
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.
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.
Engine and engine cooling › Engine
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.
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.
NHTSA investigations
Scope and Timeliness
NHTSA opened Recall Query (RQ) 17-003 to investigate the timeliness and scope of Kia?s Theta II GDI engine recall (Recall No. 17V-224), and Kia?s compliance with reporting requirements. On November 23, 2020, the Agency entered into a Consent Order with Kia to administratively resolve NHTSA?s assertions of violations of law in connection with RQ17-003.
Engine Fires
On March 29, 2019, the Office of Defects Investigation (ODI) opened two Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) to broadly investigate incidents of non-crash fires (regardless of origin or operational status of the vehicle) on various model year Hyundai and Kia vehicles.
Loss of Motive Power
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021.
Engine complaints in other Sorento years
Frequently asked questions
How common are engine problems on the 2012 Kia Sorento?
NHTSA has 475 complaints about the engine & cooling of the 2012 Kia Sorento, 54% of the model year's 880 complaints. The component named most often is engine › oil/lubrication › sump/tank › drain plug (1 mentions).
Is there a recall for 2012 Kia Sorento engine problems?
Yes — NHTSA recall 20V-750 (engine, Dec 2, 2020); NHTSA recall 18V-907 (engine, Dec 19, 2018); NHTSA recall 17V-224 (engine, Mar 31, 2017). Recall repairs are free at authorized dealers.
At what mileage do 2012 Kia Sorento engine problems start?
Half of the complaints with a recorded mileage happened before about 100,000 miles, and 11% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 55 fires and 9 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.