2024 Kia Seltos

The vehicle has experienced two separate episodes of severe engine/propulsion malfunction approximately two months apart. During the first incident, the vehicle began shaking and idling roughly and had very little acceleration. Pressing the accelerator caused the engine to rev, but the vehicle would barely move. A diagnostic scan performed afterward showed DTC P0171 (System Too Lean), but the code was subsequently cleared. The vehicle later returned to normal operation and a Kia dealer was unable to reproduce the condition. During the most recent incident, the vehicle again began idling very roughly and then stalled while being driven. The engine was restarted but stalled again. After another restart, shifting the vehicle into Drive caused the engine to stall again. A tractor-trailer was traveling behind the vehicle during the incident, creating a serious risk of a rear-end collision. The truck driver was able to recognize that the vehicle was having a problem and avoided a collision. There were no warning lights or messages on the instrument panel during the most recent incident. The vehicle is currently at a Kia dealership for inspection. The dealer has not identified the cause and is retaining and road-testing the vehicle in an attempt to reproduce the intermittent failure. The vehicle is available for inspection. Two incidents in less than two months.

I need to open a formal safety and warranty complaint regarding my 2024 Kia Seltos. I originally reported an acceleration problem to the dealership when the vehicle was purchased and they said they couldn’t duplicate the issue but they did not resolve it.The vehicle shuts off while I was driving, and afterward would not accelerate beyond approximately 15 mph. I believe the vehicle is unsafe to drive, and I want this documented as an unresolved recurring defect. I did make complaints to Rick case Kia of sunrise and at the time took it back up there three times in the month I purchased it. I’ve been dealing with this randomly since I got the car it shuts off while in motion.

Since November 2025, this vehicle has experienced repeated loss of power, severe shaking during acceleration, jerking between gear shifts, abnormal humming/grinding noises, and multiple check engine light events. The condition is most noticeable between approximately 40-70 mph and has repeatedly occurred while driving on highways. On multiple occasions, the vehicle struggled to accelerate properly and would not respond normally to throttle input. During one occurrence, the vehicle had difficulty accelerating beyond approximately 55 mph while on the expressway. The shaking became severe enough that I feared mechanical failure could occur while driving. I was forced to pull off to the shoulder of the highway because I no longer felt it was safe. The inability to maintain speed and accelerate normally created a safety risk for both myself and surrounding traffic. The vehicle has been returned to the dealership six times for the same recurring issue. Repairs have included replacement of the ECU, catalytic converter, ignition components, fuel injectors, and other engine related components. Despite these repairs, the problem continues to return. The condition has been repoduced and documented by the dealership, and a manufacturer field technician was involved in the most recent diagnosis process. Most recently, after the vehicle was inspected and believed to be repaired, the check engine light illuminated again while the service manager was moving my vehicle to be washed inside of their garage, as I waited (today, June 11th 2026). The recurring loss of power, repeated check engine light events, and inability to permanently correct the defect raise significant safety concerns while operating the vehicle. I have all documentation in my notes, as well as the dealership repair documents.