NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
61 reportsMileage unknown · Aug 9, 2025
Unknown Or Other
UNKNOWN. While driving, an alert will pop up "Consider taking a break." It is very distracting and actually startles me to the point of almost having had an accident several times. It will pop up several times while driving at random intervals. I have tried to disable it, but cannot. I called the KIA hotline and they said for me…
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UNKNOWN. While driving, an alert will pop up "Consider taking a break." It is very distracting and actually startles me to the point of almost having had an accident several times. It will pop up several times while driving at random intervals. I have tried to disable it, but cannot. I called the KIA hotline and they said for me to not drive the vehicle, but also, they would not purchase the vehicle back from me. They did not offer any other solutions beyond that. I have talked with the dealership and they do not have a solution. They did not mention this feature when purchasing. I would not have bought the vehicle if I had known about it ahead of time. I would like for the Kia company to allow users to disable this distracting feature.
NHTSA ODI #11679528
Mileage unknown · Jul 16, 2025
Unknown Or OtherInjury
Sometimes when I start the engine the sliding doors does a quick open and closes. Told the dealership about it and they couldn’t fix the problem. It’s annoying but I Didn’t really have an issue until my [XXX] old got hit on the head by the sliding door. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 …
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Sometimes when I start the engine the sliding doors does a quick open and closes. Told the dealership about it and they couldn’t fix the problem. It’s annoying but I Didn’t really have an issue until my [XXX] old got hit on the head by the sliding door. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11673997
Mileage unknown · Jun 4, 2025
Electrical SystemEngine
2025 KIA Carnival Hybrid gets stuck in electric mode. This cause rapid draining of the electric vehicle battery, reduced maximum speed, and reduced acceleration. This has occurred while merging onto the highway. I had to pull over to the highway on ramp shoulder, turn the vehicle off and back, and then merge back until the hig…
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2025 KIA Carnival Hybrid gets stuck in electric mode. This cause rapid draining of the electric vehicle battery, reduced maximum speed, and reduced acceleration. This has occurred while merging onto the highway. I had to pull over to the highway on ramp shoulder, turn the vehicle off and back, and then merge back until the highway. I have a video of it happening while picking up my kids from school, but it is too large to upload here.
NHTSA ODI #11664744
Mileage unknown · May 9, 2025
Power TrainVehicle Speed Control
The Kia Carnival Hybrid wouldn't allow me to accelerate, topping out at 30/31 MPH despite me fully pressing down on the accelerator. It has happened twice now (a few days apart) and can only be resolved by turning the car off and then back on. Compared to similar complaints logged on the NHTSA website, the difference is that thi…
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The Kia Carnival Hybrid wouldn't allow me to accelerate, topping out at 30/31 MPH despite me fully pressing down on the accelerator. It has happened twice now (a few days apart) and can only be resolved by turning the car off and then back on. Compared to similar complaints logged on the NHTSA website, the difference is that this happened when it was roughly 50-60 degrees outside--not during extremely low temperatures as the other examples have described.
NHTSA ODI #11659865
Mileage unknown · May 1, 2025
Electrical SystemEngineVehicle Speed Control
When pulling out onto the highway from my drive way the car would no accelerate when I pressed the gas, the car would not exceed 35mph, when caused me and my kids to almost get rear ended when pulling out since the car would not go..... the car will start to flash a " check hybrid system pull over safely" light and then the car …
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When pulling out onto the highway from my drive way the car would no accelerate when I pressed the gas, the car would not exceed 35mph, when caused me and my kids to almost get rear ended when pulling out since the car would not go..... the car will start to flash a " check hybrid system pull over safely" light and then the car will start to coast and I have to find somewhere safe to coast off to, to turn the vehicle off and then on again, it will run fine after that but it will eventually do it again... I have taken the car to 2 different dealerships to have it looked and and they tell me nothing is wrong with it
NHTSA ODI #11658095
Mileage unknown · Apr 28, 2025
Vehicle Speed Control
My carnival is only a few weeks old. The first week of driving I was on the freeway and I was suddenly unable to accelerate. The started slowing down and pressing the gas did nothing. I was able to get off to the side of the freeway where I turned off the car. Once the car was back on it was fine. However later in the drive whil…
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My carnival is only a few weeks old. The first week of driving I was on the freeway and I was suddenly unable to accelerate. The started slowing down and pressing the gas did nothing. I was able to get off to the side of the freeway where I turned off the car. Once the car was back on it was fine. However later in the drive while street driving the same thing happened and I again had to pull over and turn off then on the car again. I explained this to the dealership on the phone thinking it may be an issue with the mode I was driving in. The dealer told me he had heard of this before and I need to switch modes. I have since switched to smart mode where it goes in and out from economy to sport and it failed to accelerate again twice this weekend where I had to pull over and turn off the car. I have an appointment with the dealer however I have no seem posts and complaints of others with this same issue and no resolution. This is extremely dangerous.
NHTSA ODI #11657366
Mileage unknown · Apr 6, 2025
Back Over PreventionForward Collision AvoidanceService BrakesCrash
While coasting at very low speed with foot off accelerator or brake, into a crowded parking spot, the brakes failed after foot applied to the brake petal. This caused our vehicle to collide with a vehicle in front of us, pushing it a few feet backwards. Despite strong effort to push brake pedal down further, car would not stop. …
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While coasting at very low speed with foot off accelerator or brake, into a crowded parking spot, the brakes failed after foot applied to the brake petal. This caused our vehicle to collide with a vehicle in front of us, pushing it a few feet backwards. Despite strong effort to push brake pedal down further, car would not stop. Pushed circular park button simultaneously with emergency brake tab which we believe ultimately stopped the car. No usual parking system alerts, beeps, lights, etc., turned on during the collision or near pre-collision. Finally, when car reversed to go home, the car made an unusual jerking movement without the usual reverse 'beeping' noise for the hybrid. Car then behaved normal for the 10 minute tense drive home. We are afraid to drive the car for fear of fatal brake failure to ourselves or others. Vehicle is intact and currently at local Kia dealer for past several days, though purportedly they 'found nothing' and are offering to return the car. Auto claim still pending and once car returned to us, we will have auto insurance rep evaluate the car.
NHTSA ODI #11653011
Mileage unknown · Apr 5, 2025
Fuel/propulsion SystemPower Train
Vehicle lost power and would not accelerate past 30 mph even when fully pressing down on the accelerator. After a few minutes a warning flashed to check vehicle hybrid system. Pulling over to the shoulder and restarting the car returned the car to normal operation.
NHTSA ODI #11652939
Mileage unknown · Apr 1, 2025
Vehicle Speed Control
Cold winter day, the car would not accelerate past 30-35 MPH. The engine would rev but would not be able to get past about 35 MPH.
NHTSA ODI #11652019
Mileage unknown · Mar 30, 2025
EngineFuel/propulsion SystemVehicle Speed Control
Car would not allow me to accelerate. It seemed to keep me running only on the electric motor vs the gas engine (the vehicle is a hybrid). This has happened multiple times. The fix is to turn the car off and on again.
NHTSA ODI #11651616