*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system
NHTSA Vehicle Safety Complaint Vehicle: 2024 Kia Carnival Mileage at Failure: Approximately 74,000 miles Incident Date: [XXX] I am filing this complaint regarding a significant safety-related failure involving the power sliding door on my 2024 Kia Carnival. On [XXX], the driver side passenger power sliding door became completely inoperable due to a latch and actuator failure. Prior to service, the door was stuck in the closed position and could not be opened through normal operation. The vehicle was brought to Kia of Columbia, Connecticut, for evaluation. During diagnosis, the service technician was required to force the door open. Once opened, the door could no longer be closed. The…
Aug 10, 2026Unknown or other1 injury
On XXX, the passenger-side power sliding door of my 2024 Kia Carnival EX closed on my [XXX] childâs torso/chest while she was exiting the vehicle and did not stop or reverse before trapping her. I had walked toward the house and reached the garage when I heard an extremely loud scream of pain. I immediately ran back to the vehicle. When I reached her, I personally observed that her torso/stomach was still pinned against the vehicle by the closed power sliding door. She could not move herself away. I had to press the power door button to open the door and release her. She immediately had pain and visible linear red pressure/abrasion marks on her chest/rib area, followed by bruising. She…
Sep 29, 2026Engine
The contact owns a 2024 Kia Carnival. The contact stated that while driving 65 MPH, the vehicle jerked violently and experienced a loss of motive power, with reduced power. Several unknown warning lights illuminated. The vehicle was taken to a dealer; however, the vehicle was not diagnosed or repaired because the warning lights were no longer illuminated. The contact continued to drive the vehicle, and the failure recurred. The vehicle was towed to the dealer and was awaiting diagnostic testing. The manufacturer was notified of the failure. The failure mileage was 48,320.
Sep 14, 2026 · 48,320 milesFuel/propulsion system
My 2024 Kia Carnival smells strongly like gasoline after about 15â20 minutes of driving. The smell gets worse at idle, worse the longer I drive, and seems even stronger with the A/C on. Two dealerships in Las Vegas have told me this is ânormal.â Meanwhile, I canât park it in my garage because the smell fills my house. Iâve had headaches and nausea, and my kids have complained of headaches and stomach aches too.
Sep 10, 2026Unknown or other1 injury
I was cleaning my van and my 2 year old daughter closed the opposite door and the sensors did not stop the door and she got her fingers smashed into the door and potentially broke her fingers, took her to the ER and we are to repeat X-rays in 7 to 10 days.
Sep 6, 2026Service brakes
On 8/25/2026 I dropped the vehicle at Plaza Kia, 2699 Nostrand Ave, Brooklyn, NY 11210 (Kia Repair Facility #7119189) for four open recalls: PI2501, PI2602, SC320, and SC368. Brakes were functioning normally at drop-off. Per repair order [XXX] dated 8/26/2026, only PI2501 and PI2602 (second-row seat recalls) were performed; SC320 (EGR valve) and SC368 (high-pressure crossover fuel pipe) were not completed â parts on special order. The dealer's multi-point inspection sheet, printed 8/26/2026 12:36 PM, marked brake fluid level/condition and brake system components as OK/green. The technician time log on the RO shows 0.0 actual hours for that day. The brake lining inspection panels on the…
Aug 26, 2026Unknown or other
For the past year I have taken my vechicle in due to a strong vinegar smell that comes from the AC in the summer upon start up. They have been unable to remedy this issue. However they have said there is mold in the system. This posses a health issue due to poor air quality especially for small children in the vehicle.
Aug 4, 2025Lane departure › Blind spot detection
On our 2024 KIA Carnival, which my wife is the primary driver, the blind spot warning on the passenger side does not work all the time. Driver side is 100% okay. She drives on I40 and hwy111 to and from work daily, and when passing on the left, she looks for the red triangle to let her know it is clear to get back in the right lane. It only works about 50% of the time and the dealership has worked on it three times unsuccessfully, so we put in a complaint to KIA corporate in June and they have been very unresponsive. We keep the vehicle clean, so it is not that. She just wants it to be reliable for safety reasons and it is not. It probably just takes a different set of engineering eyes to…
Jun 23, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
