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 2021 Kia Sorento owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2021 Kia Sorento. The contact stated that while driving approximately 10 MPH over a speed bump, the vehicle shut off. The contact was unable to pull over to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed with a bad connection at the fuel pump fuse box. The dealer performed a minor wiring repair. The contact stated that while driving 60-80 MPH, the vehicle failed to accelerate as intended, and the vehicle shuddered and then jolted. The vehicle was taken to Calavan Kia [redacted] ), but the failure could not be duplicated; however, the coils were replaced. The contact stated that upon starting the vehicle, several unknown warning lights were illuminated, and the vehicle was inoperable. The contact stated that upon restarting the vehicle, the warning lights were turned off, and the vehicle operated as needed. …
The contact owns a 2021 Kia Sorento. The contact stated that while driving 50-60 MPH, the check engine warning light illuminated. The vehicle hesitated and jerked while depressing the accelerator pedal. The vehicle was taken to Firestone, where the spark plugs and ignition coils were replaced; however, the failure recurred. The vehicle was taken back to Firestone, where it was diagnosed with transmission failure, and the contact was referred to the dealer for assistance. The vehicle was taken to the dealer, where the fuel injectors were replaced, and the transmission oil pump was replaced under NHTSA Campaign Number: 22V760000 (Power Train); however, the failure recurred after driving 6,000 miles. The vehicle was taken back to the dealer, where the transmission oil pump was replaced under warranty; however, the failure worsened. …
The contact owns a 2021 Kia Sorento. The contact stated while reversing, she noticed a trail of oil on the ground. The contact parked the vehicle. There were no warning lights illuminated. The vehicle was taken to a local Pep Boys who informed the contact that oil had leaked onto the skid plate. The engine oil was refilled and the contact drove back to her residence. The manufacturer was notified of the failure and assisted the contact with towing the vehicle to the dealer. The dealer diagnosed that the oil drain plug had fallen out causing the oil leak. Additionally, the dealer diagnosed that the lack of engine oil had caused the engine to fail, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but informed the contact that the vehicle would be repaired at her own expense. The failure mileage was approximately 10,394.
The contact owns a 2021 Kia Sorento. The contact stated while accelerating from a complete stop and while driving at various speeds, the accelerator pedal was depressed, and the vehicle shuddered and hesitated to respond while the engine revved. The check engine warning light was illuminated, and the vehicle made a dinging sound. The contact stated that the RPMs fluctuated while idling. Additionally, the contact stated that upon manually shifting to Sport Mode, the vehicle failed to respond as needed. The vehicle was taken to O'Reilly Auto Parts, where DTC: P193B and P193B79 were retrieved. The dealer was notified of the failure and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 36,000.
The contact owns a 2021 Kia Sorento. The contact stated while driving at various speeds, the vehicle lost drive power temporarily. The check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with loss of transmission oil pump pressure. The dealer updated the transmission control unit software under NHTSA Campaign Number: 22V760000 (Power Train); however, the failure persisted. The dealer informed the contact that the failure was not related to the recall. The contact stated that the recall remedy also involved the transmission replacement. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 65,000.
The contact owns a 2021 Kia Sorento. The contact stated that intermittently, the transmission was slipping. Additionally, the vehicle failed to go into Standard Mode. While driving, the vehicle lost motive power while driving at 15 MPH. The check engine warning light was illuminated. There was an "S" symbol displayed. The vehicle was taken to the local dealer, where it was diagnosed and determined that the system needed to be reset. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the local dealer, where it was diagnosed that the sensor or wheel speed sensor needed to be replaced. The vehicle was not repaired. The manufacturer was contacted. The failure mileage was approximately 30,000.
The contact owns a 2021 Kia Sorento. The contact stated that while his wife was driving at unknown speeds, the vehicle lost motive power and stalled. There were no warning lights illuminated. The vehicle was towed to an independent mechanic, who mentioned a recall on the transmission. The vehicle was towed to the local dealer, who informed the contact there was no recall coverage on the VIN. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and the contact was informed there was no recall or warranty coverage on the VIN. The contact stated that the failure was related to NHTSA Campaign Number: 22V760000 (Power Train). The failure mileage was approximately 66,550.
The contact owns a 2021 Kia Sorento. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly jerked and then lost motive power with the check engine warning light illuminated. The vehicle was able to restart. The vehicle was taken to an independent mechanic, where it was diagnosed that the low-pressure and high-pressure fuel injectors and gasket had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 92,779.
While in the process of pulling into marked stall in parking lot car accelerated unexpectedly jumping over a concrete stop and crashing into the wall of a building. Car sustained eleven thousand dollars worth of damage and the wall that was hit was caved in. Cost of wall repair is unknown at this time. After the collision an attempt to dislodge the car was attempted by putting the car in reverse. The engine RPM was still racing and the car jerked backwards uncontrollably requiring the engine to be shut off to stop the car. Nobody was injured only property damage.
The contact owns a 2021 Kia Sorento. The contact stated while driving at an undisclosed speed, the vehicle inadvertently shifted into neutral. The check engine warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 11,978.
NHTSA investigations
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 2021 Kia Sorento?
NHTSA has 69 complaints about the engine & cooling of the 2021 Kia Sorento, 27% of the model year's 254 complaints. The component named most often is engine › oil/lubrication › sump/tank › drain plug (1 mentions).
Is there a recall for 2021 Kia Sorento engine problems?
No. NHTSA lists no engine & cooling recall for the 2021 Kia Sorento, though it has 4 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2021 Kia Sorento engine problems start?
Half of the complaints with a recorded mileage happened before about 30,000 miles, and 45% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 0 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.