2021 Kia Sorento: hesitation when accelerating

Filed Oct 7, 2026 · Acceleration, Engine · TX

UNKNOWN. Car all of a sudden wouldn’t accelerate while driving on the road. It was hesitating while pressing the gas pedal.

Filed Aug 25, 2026 · Transmission · FL

Vehicle: 2021 Kia SorentoCurrent Mileage: Over 100,000 miles (Original Owner) Description of Safety Defect & Failed Recall Remedy: Background: This vehicle is equipped with the 8-speed Dual-Clutch Transmission (DCT) and has suffered from severe slipping, jerking, and hesitation since delivery (at 5 miles). In 2023, the vehicle received the software update remedy under Kia Safety Recall SC250 (the federal safety agency Campaign 22V760) for the defective electric oil pump circuit board. The Failure: The 2023 software patch failed to resolve the underlying physical safety defect. An independent technician recently diagnosed the vehicle and confirmed a permanent, un-clearable fault code for a completely failed electric transmission oil pump—the exact physical component failure targeted by safety recall SC250. This defect causes an immediate risk of a sudden loss of motive power. The Dealership Violation: The vehicle was dropped off at Greenway Kia West Orlando on Monday, August 17, 2026. The dealership held the car for over a week, logging it under a separate fuel pump recall to stall. On August 25, 2026, the dealership formally denied safety recall coverage and issued a $7,000 out-of-pocket quote to replace the transmission, claiming the vehicle is no longer covered because it is past the 100,000-mile powertrain warranty. Federal Mandate Violation: Under federal law, safety recalls do not have mileage caps. The manufacturer's remedy failed to permanently correct a documented safety hazard, and the dealership is actively attempting to shift a multi-thousand-dollar safety recall replacement cost onto the consumer.

Filed Jul 22, 2026 · Engine, Fuel system · TX

previous warranty repair for a failed fuel injector (RO #1103175) resulted in severe gasoline dilution of the engine oil. the vehicle now vents raw fuel vapors into the cabin (Fire Hazard) and hesitates/jerks when braking at stoplights (Stall/Crash Hazard). Kia Corporate has refused to communicate for over two weeks while the dealer holds the car.

Filed Jul 21, 2026 · Engine, Transmission · NY

I am filing this complaint regarding my 2021 Kia Sorento, which has suffered a transmission failure. The transmission slips, shifts harshly, hesitates during acceleration, loses power unexpectedly, and has become unsafe to drive. This defect has put my safety and the safety of others at risk. On several occasions the vehicle failed to respond properly when accelerating, including while entering highways and driving in traffic. The hesitation and sudden loss of power created fear and anxiety because I could not trust the vehicle to operate as expected. The problem has been reproduced and confirmed by a repair facility, and the symptoms are consistent with a transmission torque converter clutch failure. I also contacted Kia and provided the vehicle information. Kia informed me that they would not repair the vehicle because it has exceeded 100,000 miles and that the recall or warranty extension had expired. However, my vehicle is experiencing the same transmission-related symptoms reported by many other Kia owners.I never received any recall notification because I purchased the vehicle from a dealership as the second owner. Had I been properly notified, I would have taken the vehicle in for inspection much earlier or would never have purchased the dangerous vehicle in the first place. It is extremely frustrating and costly to be denied assistance solely because of mileage when the failure appears to be related to a known transmission defect.Before the failure, the check engine light illuminated and then went away even though the issue did not. Prior to that warning, the vehicle had already shown delayed shifting, slipping, hesitation, rough gear changes, and loss of power, which became progressively worse. I reported this to Kia on a previous service visit to Romeo Kia in Lake Katrine, NY and was told they did not find anything wrong. This situation has caused significant emotional stress and anxiety. I am requesting a full review and a fair resolution from kia. Thank

Filed Jul 16, 2026 · Electrical, Engine · MA

I am filing this complaint regarding my 2021 Kia Sorento, which has suffered a serious transmission failure. The vehicle is displaying diagnostic code P0741, indicating a torque converter clutch malfunction. The transmission slips, shifts harshly, hesitates during acceleration, loses power unexpectedly, and has become unsafe to drive. The vehicle is available for inspection upon request.This defect has put my safety and the safety of others at risk. On several occasions the vehicle failed to respond properly when accelerating, including while entering highways and driving in traffic. The hesitation and sudden loss of power created fear and anxiety because I could not trust the vehicle to move when needed to avoid a dangerous situation. The problem has been reproduced and confirmed by a repair facility, and the symptoms are consistent with a transmission torque converter clutch failure. I also contacted Kia and provided the vehicle information. Kia informed me that they would not repair the vehicle because it has exceeded 100,000 miles and that the recall or warranty extension had expired. However, my vehicle is experiencing the same transmission-related symptoms reported by many other Kia owners.I never received any recall notification because I purchased the vehicle from a dealership as the second owner. Had I been properly notified, I would have taken the vehicle in for inspection much earlier. It is extremely frustrating and financially devastating to be denied assistance solely because of mileage when the failure appears to be related to a known transmission defect.Before the failure, the check engine light illuminated and code P0741 appeared. Prior to that warning, the vehicle had already shown delayed shifting, slipping, hesitation, rough gear changes, and loss of power, which became progressively worse.This situation has caused significant emotional stress, anxiety, and financial hardship. I am requesting a full investigation and a fair resolution from kia.

Filed May 14, 2026 · Transmission · 136,577 miles · CA

The contact owns a 2021 KIA Sorento. The contact stated while driving the vehicle on a hill he states the vehicle stutters very hard and moves back and forth with hesitation to accelerate. The vehicle was seen by a dealer 3 months before and was made aware of a transmission failure starting, the contact moved to an area that has much more hills and is now experiencing hard transmission failure symptoms. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage 136,577.

Filed Apr 27, 2026 · Engine, Transmission · 86,000 miles · TX

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 the federal safety agency 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 stated that while driving approximately 30 MPH, the vehicle stalled in the middle of the roadway. 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 and it was determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The contact was referred to another dealer for a second opinion. The failure mileage was approximately 86,000.

Filed Apr 9, 2026 · Fuel system, Transmission · AZ

I am submitting a complaint regarding a 2021 Kia Sorento SX that experienced a premature and catastrophic transmission failure at approximately 76,000 miles. The vehicle developed loss of power, hesitation, and erratic shifting at low speeds (0–30 mph), creating a potentially dangerous condition when attempting to accelerate into traffic or cross intersections. A Kia dealership diagnosed the issue as TCM code P193B79 and determined that the failure involved an internal high-pressure oil pump within the transmission, requiring full transmission replacement. This failure occurred despite proper maintenance and completion of Kia’s SC250 software update, which appears to address transmission-related drivability concerns. My maintenance records confirm compliance with manufacturer recommendations. The symptoms and failure mode closely align with the type of transmission issues addressed in Kia service campaigns and recalls (including SCN-520), yet Kia has refused to provide coverage or reimbursement, stating that my specific diagnostic code does not exactly match the recall criteria. As a result, I was forced to pay approximately $5,300 out of pocket for a full transmission replacement on a vehicle with relatively low mileage. This raises serious concerns that: * The underlying transmission issue may extend beyond the narrow criteria defined in the recall * Software updates may not fully address an underlying mechanical defect * Consumers may be experiencing similar failures without coverage Additionally, the loss of power and hesitation at low speeds presents a clear safety risk, particularly in normal driving conditions. I am requesting that the federal safety agency investigate whether transmission failures in the 2021 Kia Sorento are broader than currently recognized and whether affected consumers should receive expanded coverage or reimbursement.

Filed Mar 27, 2026 · Electrical, Engine · NC

My check engine light came on and went to dealer ship jn Oct of 2025 they stated the Egr needed to be replaced and would cost 1300 to repair but inform me they didn't have the piece to replace at that time to reschedule app. Also reservoir coolant light keeps coming on . I called several times to Lumberton Kia at one time they stated that they didn't have but 1 mechanic that worked on hybrids and he was behind. I finally have a appointmentthis weekto see what is exactlygoing on with my suv cause now i have a hesitation when pressing the gas and my transmission jerks.

Filed Mar 16, 2026 · Electrical, Fuel system · AL

The issue appears to involve the electric oil pump and related components. My 2021 Kia Sorento had a recall for the electric oil pump that was marked “completed” in January 2023; however, the dealership only performed a software update and did not replace any mechanical components because no fault code was present at that time. Beginning around October 2025, the vehicle started experiencing drivability issues including hesitation and bogging down when accelerating from a stop. A dealership representative later stated the electric oil pump and housing likely need replacement and that the transmission may also be affected. The vehicle is available for inspection upon request. This issue creates a safety risk because the vehicle frequently hesitates or bogs down when attempting to accelerate, especially when pulling into highway traffic. When pressing the accelerator, the vehicle sometimes struggles to engage and move forward, which increases the risk of a collision. I brought the vehicle to Kia of RBC and spoke with Service Advisor Justin Hawkins. At the time of inspection, the check engine light had turned off and I was told they could not diagnose or repair the issue unless the warning light was active. I was instructed to continue driving the vehicle until the light returns. During a later conversation, dealership staff indicated the electric oil pump and housing likely need replacement and that the transmission may also require replacement, but they could not confirm this without the warning light being present.

Filed Mar 5, 2026 · Transmission · 68,846 miles · NC

The contact owns a 2021 Kia Sorento. The contact stated that while driving at various speeds, the vehicle hesitated and occasionally jerked while accelerating with the accelerator pedal depressed. The message to "Pull Over and Shut off Vehicle" was displayed. The vehicle was taken to a local dealer, where it was diagnosed with transmission failure. The vehicle was not repaired. The contact related the failure to an unknown recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 68,846.

Filed Jan 12, 2026 · Engine, Fuel system · AZ

I was driving my car on [XXX] and my car suddenly lost power and when I pressed the gas pedal the RPM quickly increased but the car was hesitating between gears and not engaging. Shortly thereafter a malfunction code showed up on my car screen along with an engine warning indicator. The code was DCT P193B79. That code indicates a High Pressure Electric Oil Pump Performance issue pointing to problems with the 8WDCT; the same issue and symptoms associated with the recall bulletin for the 2021 Kia Sorento Transmission. When I brought it to Ken Gariff Kia in Phoenix Arizona they stated there is no such recall for my vehicle with this problem and that since I have 76000 miles on the car it is not covered. I feel that this repair falls squarely within the scope of the recall for the Kia transmission and would like it replaced at the manufacturers expense. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)