2023 Kia Sorento: complete transmission failure

Filed Oct 18, 2026 · Engine · TX

My 2023 Kia Sorento has experienced continuous mechanical failures, including a serious engine fire in December 2025 while I was driving on the [XXX], which put my life at risk. Following that incident, my vehicle remained in the shop for nearly three months while the engine and related components were replaced, only to experience another failure in March 2026 requiring a transmission replacement, followed by electrical issues in April requiring a wiring harness replacement. In June 2026, my vehicle broke down again and required yet another transmission replacement, leaving me without my vehicle for several additional months. [XXX], my vehicle failed AGAIN while I was in Houston and had to be towed, proving that nearly a year of extensive repairs has failed to resolve these ongoing mechanical issues. This vehicle is a serious safety concern, and I have completely lost confidence in its reliability, especially after experiencing an engine fire, repeated breakdowns, and dangerous acceleration issues. I have continued making monthly payments on a vehicle that has spent more time in the repair shop than in my possession, causing significant financial strain, stress, and inconvenience. After nearly a year of unsuccessful repair attempts, I am demanding an immediate and permanent resolution, including a vehicle buyback or replacement, as I should not be expected to continue driving a vehicle that repeatedly jeopardizes my safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 9, 2026 · Engine · TX

My 2023 Kia Sorento has experienced repeated failures involving the engine, transmission/powertrain, and electrical wiring system. The vehicle has been inspected and repaired multiple times by authorized Kia dealerships, including Kia of Round Rock and Clay Cooley Kia in Irving, and the repair history and vehicle are available for inspection upon request. The most serious incident occurred on XXX, while I was driving on the [XXX]. The vehicle suddenly lost acceleration, began smoking, and experienced a catastrophic engine-related failure, creating a serious safety concern while I was traveling on a high-speed roadway. The vehicle had to be towed to Clay Cooley Kia, where it remained for approximately three months and the engine and related components were replaced. After receiving the vehicle back on XXX, a significant oil leak developed approximately five days later. The vehicle was returned for service, the problem was confirmed, and it ultimately required a transmission replacement. On approximately XXX, multiple/all dashboard warning lights illuminated, and Kia subsequently replaced the wiring harness. The vehicle continued to experience problems and was towed to Kia again. In XXX, Kia determined that another transmission replacement was necessary. The vehicle has now had three transmissions associated with it, in addition to the replacement engine and wiring harness. XXX, the vehicle is still malfunctioning despite being on its third transmission. Current symptoms include the RPMs suddenly surging/revving higher than expected, jerking while driving, and a noticeable delay between pressing the accelerator and the vehicle accelerating. These symptoms create a safety concern because I cannot confidently predict how the vehicle will respond when accelerating, merging into traffic, crossing an intersection, or traveling at highway speeds. I am concerned that the repeated engine failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 25, 2026 · Transmission · PA

The transmission failed for the fourth time. The transmission (Power Train) is the component that failed and is available for inspection at the dealership. The vehicle became unsafe and unreliable to drive due to the repeated transmission failures, creating a risk of sudden loss of power or control. The problem has been confirmed by the dealer on multiple occasions, most recently on August 24, 2026. The vehicle has also been inspected by Kia America as part of an open case (Case #25964896). History: The 1st transmission failure was covered under the original factory warranty. The 2nd failure occurred after the 12,000-mile transmission replacement warranty had expired, requiring an out-of-pocket repair of $5,500. The 3rd failure occurred within 12,000 miles of that replacement and was covered by Kia. On August 24, 2026, the dealer confirmed the transmission had failed again — a 4th failure of the same component. Warning symptoms typically appeared as loss of power, hesitation, or rough shifting prior to each failure.

Filed Mar 24, 2026 · Transmission · IL

Transmission went out while driving on highway. Dealership said they need to replace the entire transmission.

Filed Jan 6, 2026 · Acceleration, Electrical · AZ

I purchased a new 2023 Kia Sorento in February 2023 from Ken Garff Kia Avondale. Since shortly after purchase, the vehicle has experienced repeated electrical and mechanical failures that substantially impair safety. In July 2023, the vehicle began displaying flashing lights, dashboard error messages, and system malfunctions while driving, despite no collision or visible damage. The air conditioning system malfunctioned and blew hot air even when turned off. The dealership stated a front sensor was “damaged” and not warranty-covered, despite no visible damage, and verbally indicated that many other customers were experiencing similar issues. Repairs took nearly four months, during which Kia Corporate engineers were involved. The issue persisted despite repairs. In December 2024, the vehicle began displaying repeated transmission system error warnings, often within the first 5–10 minutes of driving, causing significant loss of speed and drivability. After multiple service visits, the vehicle required a full transmission replacement in July/August 2025 under warranty. Despite this repair, the same transmission errors returned in December 2025. More critically, the vehicle then experienced multiple sudden and complete electrical shutdowns without warning, including: Shutting off entirely while stopped at a red light, requiring a jump start All screens going black and the vehicle failing to restart Restarting only after being left parked for several minutes These events occurred without any battery or system warning indicators and created a serious safety risk, including risk of being stranded or disabled in traffic. The issues have been documented with photos, videos, repair records, and written communications. Due to the ongoing and dangerous nature of these failures, I am reporting this as a vehicle safety defect.

Filed Jul 28, 2025 · Transmission · NY

on [XXX], the check engine light came on solid. My car is just 2 years old, only has 22K miles, and is currently under warranty, as it is a leased vehicle. According to Auto Zone, it was a "speed sensor". On 7/25/25, I was able to get an appointment with Garvey Kia of Queensbury, NY and the fault code is the "input turbine shaft speed sensor B circuit range for performance". The service technician told me that it is not able to be accessed, as it is internal, and it is not serviceable. My safety and the safety of others were at risk because the car would go "limp" when accelerating, there was harsh and delayed shifting, erratic RPM readings, and no power when accelerating. This inability to accelerate causes problems in traffic and when trying to get through intersections or out of side streets when acceleration is imperative. Yes, the car has been inspected by the Kia dealership. This same exact thing happened on [XXX], in which Destination Kia of Albany had by car for over 4 weeks to replace the transmission. At that time, the car had under 10K miles and was not even a year old. At that time, they put a refurbished transmission into the car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)