There are 3 owner-reported powertrain & transmission complaints for the 2024 Kia K5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
On [XXX], while driving to campus during rush-hour traffic at approximately 15-20 MPH, the car suddenly felt as if the brakes had been slammed, giving me a serious scare and nearly causing an accident. The car stopped in the middle of the road, and I was stuck there, forced to manually push the car to the side to avoid further risk to myself and other drivers. I immediately had the vehicle towed to Ourisman Chantilly Kia for service. Upon arrival at the dealership, I requested a loaner vehicle. However, it took an entire week for one to be provided, leaving me without transportation for a significant period of time. I was informed that the dealership needed my approval to take apart the transmission, which I gave immediately. Despite this, for the next two weeks, I called daily for updates, only to be told that no new information was available and that the dealership was still waiting for guidance from Kia's technical team. After two weeks of no progress, I asked my service advisor, Sean, what had actually been done to my car. He informed me that the only action taken was draining the transmission fluid. I was baffled that it had taken two weeks just to drain the fluid while waiting for Kia's tech team to respond. Out of frustration, I contacted Kia directly, and within minutes, I was informed that Kia had approved a new transmission a week earlier—something the dealership had failed to communicate to me. When I informed the dealership of this, Sean confirmed that the new transmission had arrived, and I was told the car would be ready by the end of the week. However, this deadline passed with no progress. Over the course of several more weeks, I was repeatedly told the car would be done by the end of the week, only for that promise to be broken each time. Sean then explained to me that there is only one mechanic certified to work on my car, which was causing a delay. If this is indeed true, it could explain why Kia's service department is so backlog INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
After driving the car for approximately 30 minutes at freeway speeds I exited the freeway at my off-ramp and being driving on Surface streets. Suddenly several alerts started appearing on the screen of my car. That was followed by the engine revving up and down on its own without me touching the accelerator. When I arrived at a stoplight the engine was idling but revving slightly up and down. When the light changed I pressed accelerator and the engine never exceeded idle speed so I basically idled my way across the intersection and pulled over and stopped. The car is at the dealership now and they haven't duplicated the problem. I purchased the car brand new about one month ago. It has only 800 miles on the odometer. If this had happened a few minutes earlier I would have been on the freeway with no power to the drive train. This could have put me in a very dangerous position.
I purchased a brand new 2024 kia k5 gt on September 2 2023; from kia of Cerritos "18201 Studebaker Rd, Cerritos, CA 90703" . My car has noticeable defects that affect the driving experience and can be dangerous. When coming to a stop the engine turns off as if it was deactivating one or more of my cylinders. While that happens it stalls the car. My adaptive cruise control doesn't work as intended since it came damaged from the manufacturer, while driving with the adaptive cruise control on the vehicle requires more input to maneuver. The vehicle did a sudden jerked and almost ran me into a freeway barricade. I also noticed some of my trim pieces and my steering wheel aren't properly put on and are falling off and the body trim is under recall. The dealer handlingthe recall is kia of downtown los angeles "1945 S Figueroa St, Los Angeles, CA 90007". I was able to fix the trim pieces by another dealer. I let the dealer I purchased the vehicle from know of the experiences I had with the vehicle and nothing was done.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026