Most common 2025 Kia Carnival Hybrid problems
Share of the 69 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Kia Carnival Hybrid complaints by model year
What 2025 Kia Carnival Hybrid owners say
Speed control & acceleration all 27 →
The contact owns a 2025 Kia Carnival Hybrid. The contact stated that while driving at undisclosed speeds, the vehicle hesitated before accelerating while depressing the accelerator pedal. There were no warning lights illuminated. The vehicle was taken to the dealer, who was able to duplicate the failure; however, the vehicle was not diagnosed, and the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 3,000. The VIN was not available.
My wife and I have a 2025 Carnival SX Prestige Hybrid. We live in northern Maryland (lots of cold days lately!). This exact issue has happened three times and counting. While driving, our car will randomly lose all ability to accelerate. You can press the gas pedal all the way to the floor, and it will not gain speed. It seems to happen at lower speeds, around 30mph and it just caps off and will not accelerate and lose all power. The only thing that fixes the issue is literally pulling over and restarting the car, and then it drives fine. We took it into the dealer after the second incident and they claimed that a camera was just obstructed by ice, so the car probably thought it detected something in front of us so it stopped accelerating as a safety feature. …
Electrical system all 24 →
I had two very serious incidents. July 8th: Horn just started blaring unprompted. Locking/unlocking doors, turning motor on, disconnecting battery did nothing to stop it. I was trying everything and as I was trying to find the correct fuse to disable (it wasn't labeled), the horn burned out and started smoldering. If the car was not in my driveway AND I wasn't home, I believe a fire would have started if I didn't pull the fuse AND douse it with water. It was parked next to my garage, so that would have been at risk as well. July 11th: When driving, my brake line burst resulting in a complete failure of my brakes. I narrowly escaped two accidents before I realized something was amiss. But the only warning was ABS was inactive, and active cruise control wasn't working. I had no warning that complete brake failure was imminent. I was extremely lucky. …
The contact owns a 2025 Kia Carnival. The contact stated that on several occasions the vehicle failed to start due to the 24-Volt battery failure. The vehicle was jump-started and operated normally, but the failure reoccurred. Additionally, the contact indicated that the emergency key failed to open the doors of the vehicle after the battery malfunction. A locksmith was called to the scene to open the doors. The cause of the failures was not yet determined. The local dealer and manufacturer were notified of the failures. The failure mileage was 600.
Engine & cooling all 21 →
My wife and I have a 2025 Carnival SX Prestige Hybrid. We live in northern Maryland (lots of cold days lately!). This exact issue has happened three times and counting. While driving, our car will randomly lose all ability to accelerate. You can press the gas pedal all the way to the floor, and it will not gain speed. It seems to happen at lower speeds, around 30mph and it just caps off and will not accelerate and lose all power. The only thing that fixes the issue is literally pulling over and restarting the car, and then it drives fine. We took it into the dealer after the second incident and they claimed that a camera was just obstructed by ice, so the car probably thought it detected something in front of us so it stopped accelerating as a safety feature. …
When driving my van to work in the morning, I would get an alert on my screen that says to check the driver assistance system. Then I turned on to the freeway on ramp and my car lost all power, not letting me drive faster than 30 mph. I was able to get off of the freeway and on to a side street when another alert, accompanied by loud beeps, came on saying "Check Hybrid System. Stop safely." I was able to pull to the side of the road and turn the car off. When I turned it back on it seemed everything was fine. I took it to the dealership and they couldn't replicate the problems and the car didn't register any errors. So they returned it to me. This morning I drove to work and the exact same thing happened at the exact same place. Only this time I wasn't able to get over as quickly and my car shut down in the middle of an intersection. Luckily I was able to coast to the side of the road. …
2025 Kia Carnival Hybrid engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 1.6L 4-cyl turbo hybrid | 6-speed dual-clutch | FWD | 34 / 31 / 33 |
EPA ratings. Class: Minivan.
Frequently asked questions
Is the 2025 Kia Carnival Hybrid a good car?
There isn't enough complaint history for the Carnival Hybrid to compare model years reliably. So far owners have filed 69 complaints with NHTSA.
What is the most common problem with the 2025 Kia Carnival Hybrid?
The speed control & acceleration — 27 complaints, 39% of all complaints for this model year. Next are the electrical system (24) and engine & cooling (21).
How many recalls does the 2025 Kia Carnival Hybrid have?
NHTSA lists no recalls for the 2025 Kia Carnival Hybrid. You can still confirm with your VIN using our VIN recall check.
At what mileage do 2025 Kia Carnival Hybrid problems happen?
The median mileage reported in complaints is about 3,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.