Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Kia Forte owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2012 Kia Forte. The contact stated the vehicle was previously involved in NHTSA Campaign Number: 20V750000 (Engine) where they received an engine knock test as the remedy. The contact stated that at that time they had no failures with the engine. Approximately 2 months after while driving approximately 30 mph when the vehicle began to make a loud knocking noise inside the engine. The contact decided to pull the vehicle over to the side of the road and while doing so they began to smell smoke within the cabin of the vehicle. Once the contact had successfully pulled over and exited the vehicle they began to notice smoke coming from underneath the hood of the vehicle. The contact was able to extinguish the smoke with a fire extinguisher. The fire department did arrive and confirmed the smoke was successfully extinguished and there no longer was a fire. …
The contact owned a 2012 Kia Forte. The contact stated while driving at approximately 15 MPH, as the contact was turning to the left and ascending a slight grade in the road the vehicle's rear end was swaying to the left and the right. The contact stated she was not able to regain control of the vehicle and drove off of the roadway and down an embankment. The contact was rendered unconscious. The contact stated that emergency services were on the scene and the state police. The contact stated that she was not transported to the hospital and was taken to her residence by the state police. The contact stated that the police had issued a report. The contact later was taken to the hospital and was diagnosed as having a fractured sternum, damage to her lower back, concussion, and neck damage. The contact stated that the police had the vehicle towed to an impound lot. …
The contact owns a 2012 Kia Forte. The contact stated that while driving at an undisclosed speed, she observed smoke emanating from the engine compartment, after which the vehicle lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle was able to be restarted. The following day, upon starting the vehicle, the contact heard an abnormal rattling sound emanating from the engine compartment, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 20V750000 (Engine); the VIN was included, and parts were available. …
The contact owned a 2012 KIA Forte. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while her grandson was driving at an undisclosed speed, the steering wheel failed. The contact's grandson stopped the vehicle and noticed a glow coming from under the front hood. The contact's grandson and his brother exited the vehicle. The vehicle burst into flames. The contacts grandsons flagged down a nearby driver and asked them to call the fire department. The fire department arrived and extinguished the fire. A fire report was filed. The were no injuries. The vehicle was towed to a tow yard. The vehicle was deemed a total loss. …
The contact owns a 2012 Kia Forte. The contact stated while driving at various speeds, the vehicle stalled. The contact also stated that smoke was coming from the engine compartment. The contact stated no warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with the engine seals needing to be replaced. The vehicle was not repaired. The contact was relating the failure to NHTSA campaign number: 20V750000 (Engine). The manufacturer had been informed of the failure and informed the contact that the Vin was not included in the recall. The failure mileage was approximately 62,000.
The contact owns a 2012 Kia Forte. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving approximately 35 MPH, there was a rattling sound coming from the front end. After pulling into a driveway and turning off the vehicle, the contact looked at the belt and noticed it was still running and releasing a slight smoke. The contact stated that it took an extended amount of time for the belts to stop moving. There were no warning lights illuminated. The vehicle was towed to an independent mechanic at the time of failure however, the mechanic was unable to determine the cause of the failure. The dealer was contacted. …
The contact's cousin owned a 2012 Kia Forte. The contact stated that the vehicle was parked unattended by the privacy fence. The contact was alerted by her nephew and observed that the vehicle was on fire. The front windshield had shattered, and smoke was visible inside the cabin. The fire appeared to originate from the dashboard area. The contact used a fire extinguisher to suppress the flames with the assistance of her brother. The local fire department arrived on the scene and completed extinguishing the fire. The airbags deployed during the incident, and the fire department declared the vehicle a total loss. Upon investigation, the contact was able to link the failure to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic) and NHTSA Campaign Number: 23V652000 (Air Bags). The local dealer was not contacted. The vehicle was not diagnosed or repaired. …
The contact owns a 2012 Kia Forte. The contact stated while driving 60 MPH, he heard an abnormal clattering sound coming from the engine. The check engine warning light was illuminated. The vehicle was taken to the dealer who diagnosed that no issues were found; however, the engine oil was changed. The contact stated that the failure reoccurred while driving. The vehicle was taken back to the dealer who informed the contact that he had to pay the cost for the oil change and an oil consumption would be performed. The contact declined. The contact stated that the failure persisted. The vehicle was taken back to the same dealer several times and the engine was replaced. The manufacturer was made aware of the failure and advised that the vehicle could not be repaired under an unknown recall unless the VIN was included. A case was opened. The vehicle was not repaired. …
The contact owns a 2012 Kia Forte. The contact stated that while the daughter was driving at various speeds a knocking noise was present coming from the engine compartment and the vehicle would not properly accelerate. The vehicle was taken to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet notified of the failure. The contact was informed that the VIN was not included in the NHTSA Recall Campaign number: 20V750000(Engine). The contact indicated that the vehicle had experienced that same failure listed in the recall. The failure mileage was The failure mileage was 104,000. The contact has made several attempts to contact KIA America customer Service in regards to faulty engine failures with no response beyond we have received your email.
The contact owns a 2012 Kia Forte. The contact stated while driving approximately 35 MPH, the check engine warning light illuminated. The vehicle was taken to Auto Zone to be diagnosed. The contact was informed that the vehicle needed to be repaired due to an engine misfire. The vehicle was then taken to the local dealer to be diagnosed. The contact stated that the engine was knocking while the diagnostic test was being performed. The contact was made aware of internal engine failure and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The contact related failure to NHTSA Campaign Number: 18V363000 (Engine) however, the VIN was not included in the recall. The failure mileage was approximately 121,000.
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.
NHTSA investigations
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 Forte years
Frequently asked questions
How common are engine problems on the 2012 Kia Forte?
NHTSA has 166 complaints about the engine & cooling of the 2012 Kia Forte, 57% of the model year's 292 complaints.
Is there a recall for 2012 Kia Forte engine problems?
Yes — NHTSA recall 20V-750 (engine, Dec 2, 2020). Recall repairs are free at authorized dealers.
At what mileage do 2012 Kia Forte engine problems start?
Half of the complaints with a recorded mileage happened before about 100,000 miles, and 7% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 17 fires and 3 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.