2023 Kia Carnival Problems & Complaints

The contact owns a 2023 Kia Carnival. The contact stated that upon starting the vehicle, while driving at various speeds, there was an abnormally strong fuel odor coming from the vehicle. There was no warning light illuminated. The vehicle was taken to two separate dealers, where the contact was informed that the VIN was not under recall. The contact was given a diagnostic fee from the dealers, but declined to pay for a diagnostic test. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 35,000.

The contact owns a 2023 Kia Carnival. The contact stated that during freezing weather, the button was depressed to open the driver's side rear sliding door, and the door automatically opened; however, the motor reached a point of resistance and attempted to close the sliding door. Due to the failure of the cable in the door snapped behind the glass window. The contact manually opened the sliding door and used excessive force to close the door. The vehicle was taken to the dealer, who confirmed that the door cable had snapped. The contact was informed that the vehicle was out of warranty; however, the dealer reached out to the manufacturer for assistance. The manufacturer later agreed to partial assistance with the repair. The contact paid for the remaining cost of the repair. The manufacturer was contacted about the repair and provided a case number. The vehicle was repaired. The failure mileage was 63,476.

ABS was activating inappropriately creating a grinding/pulsating noise while I was attempting to stop at a light. The vehicle did slow down but despite the completely dry road service and sufficient stopping distance, the vehicle never came to a stop and ran into the vehicle in front of me. The vehicle is currently in the autobody shop to be repaired as it is not drivable (leaking fluids). I will be contacting my insurance company and an independent service center shortly to have it inspected. I will also be contacting Kia America, Inc.. There were no warning lamps or symptoms of the problem prior to the failure.

Strong fuel smell that comes and goes. Dealership replaced fuel injection related parts after finding a leak. Problem is still present.

Passenger side sliding door periodically gets stuck trying to open or close. My 3 year olds finger got stuck in the closed position of the sliding door and we could not get the door open immediately because of the faulty door periodically getting stuck.

Gas/pump door actuator failed. Unable to open and put gas in car. This car is only 1.5 years old.

On August 23, 2025, I purchased a certified pre-owned Kia Carnival. Within hours, the vehicle had a severe fuel leak that produced a strong gasoline odor. Driving it made me sick, and I feared for the safety of my three children in the vehicle. A Kia technician later confirmed a crossover fuel line leak so severe that he became ill while inspecting it and feared the vehicle could explode. Even after repair, the gas odor persisted. This vehicle was sold to me in unsafe condition, and I believe this may represent a larger safety issue that needs investigation.

The power sliding door does not reverse when an object is in its path. The door closed on my sons body. He was okay we were able to pull the handle to make it open again but it did not stop on its own. Another instance the door did not stop closing when a toy went into the door. The door just crunched the toy and shut while beeping.

My [XXX] son locked himself and his [XXX] brother in the car today. The scenario which is repeatable is if the cars start button is pushed to turn on accessory power the key fob will no longer unlock the doors. My father had the key fob outside of the car, while my son scrambled up front and pushed both the start button on the car and the door lock button. Again at this point the key fob is outside the car and will not unlock the doors. The daycare had to call 911 because two children were locked inside the car. This is an unacceptable situation for a minivan. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) I have not yet brought the vehicle to a dealer, there are no warning lights on the vehicle and the key fob is working and has power. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

After working out at my gym, my daughters and I were driving on a side street near at around 35MPH. With no warning, a large POP happened and our passenger sliding door window shattered. Thankfully, nothing but a scratch happened to my [XXX] that was in her car seat closest to the window that shattered. I called our local KIA dealership and my insurance agent and both mentioned that it could be because of the heat we are having in our area. This concerns me because the Carnival is a “MPV” aka family car and this happened without a chip or anything in the glass and terrified both of my girls. I have never heard of a window solely shattering bc of heat. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Gas door outside cover would not open which makes it impossible to pump gas. Dealership removed door to enable the ability to pump gas. This then disables the safety feature that keeps the van door from sliding open which a rear passenger may mistakenly open the door and the gas pump hose would be knocked off. if Dealership opens the door to the gas area, and leaves the door to the gas cover ajar slightly to enable the ability to pump gas, this causes an issue if the door is mistakenly opened by a rear passenger, there is no clearance and the door to the gas area would be ripped off. One incident Dec 2023, another incident May 2025

Unknown as to what exactly happened, but my husband put my daughter in her car seat buckled her and was just fine. We arrived to our destination no more than 15 minutes later and her chest clip buckle had busted apart. I do have video of the chest clip and how it was apart, however, as soon as I get the new piece and I will not have it to show due to needing the car seat. I do have video of the incident right after I noticed it and other videos showing the parts and pieces. My daughter ended up having the pieces that you press together to unlock the magnetic chest clip apart in her mouth. The magnet circle was still in the chest clip keeping it closed and locked in place. However, it very easily could have came open and out and her eat the magnet. I have contacted the manufacturer and she let me know that other car seats have had the same problem, but there is no recall. She just said she will send me a replacement piece.

The contact owns a 2023 Kia Carnival. The contact stated that the seat belt located in the rear middle row was inoperable. There were no warning lights illuminated. The contact stated that the seat belt failed to retract. The vehicle was taken to the local dealer, where it was diagnosed and determined that the seat belt needed to be replaced. The dealer ordered the part, which was on backorder. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 30,000.

The car seat harness fails to stay engaged in a safe and secure position. When tightened to the correct position it becomes loose. I contacted Nuna and they advised I should clean the harness adjuster button from debris but I did that and the harness is still coming loose. I don’t know how many times my children have been transported while wearing this faulty harness over time since purchasing our seats in 2021 but we are in our vehicle daily so my guess is upwards of 100’s of times. The manufacturer refuses to take accountability and recommends we wait indefinitely for a new car seat fabric cover, cleaning kit and instructions to alter the car seat for the purpose of cleaning the harness adjuster button ourselves.

The windshield started cracking while the car was parked and continued cracking over the next week. The crack now runs from the center top, 3/4 of the way across the driver's side

The contact owns a 2023 Kia Carnival. The contact stated that an unknown fluid was leaking from the left side of the steering column while driving at various speeds. The contact took the vehicle to a dealer where the parts on the steering column were wiped down and the contact was instructed to return the vehicle to the dealer if the failure persisted. The failure returned and the vehicle was taken back to the dealer. A diagnostic test was performed, and the contact was informed that the vehicle was unsafe to drive. The contact was informed that the steering column needed to be replaced; however, the part for repair was on backorder. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was not repaired and remained with the dealer. The failure mileage was approximately 10,000.

My 2023 KIA Carnival has a windshield cracked even without hitting rock or anything. My vehicle was parked on the driveway overnight. I can prove that the damage occurred without the car moving. I have this issue on my dash cam too. The data is saved with date and time. Kia Findlay Las Vegas refuses repair. It's not an official recall about this problem. But Similar cases can be read on the Internet.

The rails in the middle row where the seats connect to, get extremely hot to the point where it is very hot to touch. This is a safety issue that could potentially cause a fire and/or burn my children’s’ feet. It doesn’t matter if the car has been driven for a short period of time or on a long trip, regardless the rails get very hot

We drove an hour then sat in the car while it was on for about 30 minutes. The gas tank was 14% full. We started driving again down a bit of a hill & got to a stop light. The car started beeping & said “engine off! Switch to N then start engine” We turned the car off and back on & it started working.

Gas door does not open. It is faulty and won’t open when car is locked or unlocked. Unable to open to add fuel to vehicle. It has been giving issues for 3 months. This seems to be a VERY common problem with all KIA Carnivals.

The metal rails on the floor where the seats slide are very hot and we are afraid it will run our children. It is more in the center near the second row.

The driver’s side sliding door was closing and crushed my wife between the door and B pillar. It did not retract upon encountering the resistance of my wife’s body, and continued to close. She has bruising on her arm, and shoulder pain. When submitting this report on the NHTSA website, there is a recall for this exact issue. We have not had the vehicle examined as it is a holiday weekend, and the dealer is closed. Medical attention will be pursued if the pain and bruising does not subside.

Kia Carnival's 2nd row seta pretensioners are not working. In the vent of suddent breaks, the seat belts are not latching, and hence not holding the kids in the seats. We have faced this issue several times. Once my daughter came out of seat completely, since the seat belt didn't latch the belt. We took to the dealership(Kings Kia, Mason, OH), the technician agreed, there is problem with 2 seats, however, there is problem with all 3 seats. The dealership said they are still waiting for Kia corporate to send the new seat belt latch system, but there is no response from Kia yet.

The contact owns a 2023 Kia Carnival. The contact stated there was oil leaking from the vehicle onto the floorboard nearby the brake pedal. The contact took the vehicle to the dealer who diagnosed that a seal for the steering column was leaking and could cause the steering wheel to seize while driving. The Lane Keep Assist and Steering Assist would deactivate independently. The contact was informed that the steering column needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 3,337.

The vehicle throws a forward collision warning and then suddenly brakes to slow down while driving with no road hazard in front. This occurs about once every 10 days. This is a safety hazard because the forward collision warning has to be turned off every time the car is turned on. It will not stay off. During sudden braking, an accident may occur behind the vehicle. We have left the car at the dealer for 3 days while paying for a rental car and they said they could not reproduce the error. I have contacted KIA through their website about a week ago and have received no response. I have video evidence of this problem occuring on dashcam.

I have an issue that involves the metal railings in the center of the vehicle (on the floor) to get hot enough to burn and blister you. I filed a complaint with Kia which opened a case. I also took my vehicle in and this issue was verified by their mechanic. I was assigned a case number and after the employee on my case spoke with the enginer team it was determined that the only option for me was to purchase mats to cover the metal railings. I purchased both all weather and fabric mats when i purchased the vehicle. these mats do not cover the railing nor would you want them to. it would prevent the seats from moving forward and back and it would also be a fire risk. I have tried to find a solution with kia with no success. There are other forums of people complaining of the same issue such as this one https:// [XXX] I just purchased my car brand new and Kia has put me in a position to just deal with these safety issues. Besides mats that i already have the suggestion was to just not touch the rails that are on the floor where you put your feet. I put 10,000 down on a brand-new vehicle because i had the intentions of keeping it long term. now im in a position where I have to look for a safer vehicle with no help from KIA. This complaint may not help me but maybe it can help someone else. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Purchased in Aug 2022 brand new I express concern very early on that the back door would reopen after starting the car I express concern about shifting/breaking being automatic/ice light coming on when you hit bumps coming in parking lots and the doors not unlocking. All were evaluated and basically all for nothing “ could not be duplicated” I called, left voicemails, emailed the dealership with concerns Advised there was a recall on Back door which was one of my complaints did recall update still and issue The back door should not re open and stay open that is not a safety feature this day and age it’s asking to be mug, robbed ect. After the 3rd time in a week happening I called the dealership spoke to the president and advised I no longer felt safe I just want to turn in the lease have it bought back and my down payment returned. I have 3 children safety features they claim are not safe in my eyes. One example driving by myself out of a parking lot the back door reopened as I was backing out and I assumed it would just reshut - no it stayed wide open. No movement. No unlocking, turning off after auto start under a few mins. I called Kia and have yet to speak to the agent, phone tag, no emails back. Reviews online show multiple people have these issues.

The metal rails where the middle seat of the middle row is located occasionally gets too hot to touch. My daughter who was sleep had her sandals off. She woke up because her foot was hot. Shortly after her toe blistered. You won’t notice it if you have shoes on. It has happened while we were traveling and it happens when we’re just idle.

Unknown. My vehicle has cut off in the middle of traffic several times. Another incident was when my vehicle was shaking uncontrollably and couldn't go over 40. The check engine light never comes on. One dealership looked at it and said nothing was wrong even though one of the techs heard the vehicle. They said because the check engine light wasn't on that there was nothing that they could do. Took it to the kia dealership in Huntsville. They know something is wrong but because no check engine light or codes. They don't know where the problem is . My main issue is when something is wrong. No lights or codes show up. I haven't had it a year yet. Safety concerns with it cutting off in the middle of traffic .

The contact's daughter owns a 2023 Kia Carnival. The contact stated that while driving 65-70 MPH, within 48 hours of purchasing the vehicle brand new, the vehicle lost motive power. Additionally, the brakes and power steering became inoperable. Several unknown warning lights illuminated, and alarms sounded. The contact was able to veer to the side of the road. The dealer was notified of the failure and informed the contact that it was a known failure, and that the manufacturer was working on a fix. The contact stated that the taillights also failed to work intermittently. The contact also stated that the reverse lights would engage unintendedly. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure and informed the contact that the failure was due to a system update error and that the fix was currently being developed. The failure mileage was approximately 100.

The tailgate door attempted to close on my head when I was putting something in the trunk when my husband walked away with the key. I had a key with me too.

today while I was driving my sunroof shattered, big explosion, luckily my sunshade was close and not to many vehicles were around me. I call dealer, they didn't want to hear it and told me to call my insurance !!??? My car is barely 2 month old???

The side sliding (rear) doors do not stop when there is an object in between. Even when you put heavy force (this is in some angles), the door continues to close. With mild force, the door just refuses to recognize and closes out. It is a big safety concern with small children, since if the force applied by adults is not enough, then any force the child would apply is definitely not going to stop the door from closing.

The sliding power doors do not reverse when hitting a person or object. You have to use excessive force to get them to reverse and only some of the time do they even reverse. I have taken this to the dealership and they said they would contact me within 48 hours with an update but it's been a month and in spite of me attempting to contact them for a follow up they have not returned calls or emails. Safety of myself and others have been put at risk when the door is closed it does not stop and will crush whatever is in the door. Dealer was able to reproduce the problem about half of the time. Occasionally, if you hit the door in a specific spot, it might reverse but when an actual person stands in the door it does not reverse. No warning lights or messages occur I purchased the Carnival July 1 of 2022 and was not aware at the time of the sliding door problem. It wasn't until I read of others having the issue that I tested mine. I was honestly shocked that the doors in most cases did not reverse. I've tested it multiple times and I've had to get out of the way when in spite of using a lot of force it didn't reverse. I also have a 2004 Honda Odyssey that I've had for almost 20 years and this door works perfectly. Reverses with even a minor resistance. I expected all minivans to perform the same way. There are multiple incidents found online where these doors have crushed people. I'm aware of a recall just released but this does NOT fix the issue! It only adds 2 beeps and slows down the door. This is unacceptable in a real life situation so this "recall" is not acceptable. I realize KIA does not want to pay to have these doors fixed but when a child dies or suffers a severe injury they will be forced to.

The car keeps shutting of while driving ,the car jerks when accelerating, I press on the gas and sometimes it doesn't accelerate at all .the car windshield cracked, the doors closed on my hands when I was retrieving my coat the doors didn't open back up i had to snatch my hands and arms back. I have a video of car shutting off if you need it

We are concerned about the safety of the sliding doors on your 2023 Kia Carnival. The sensor does not detect objects in its path while closing, and we have already experienced two incidents and we noticed that require a great deal of effort and force to stop the door before someone gets hurt. The sensors are not working properly they need to be repair as soon as possible in order to ensure the safety of your kids.

Auto-stop/reverse on power side doors is not sensitive enough to prevent crushing hazard if someone gets caught in the dirt closing. I have to push with considerable force to get door to reverse and it still slams my arm or body hard against the frame before reversing. We are concerned or 6 small children will be seriously injured. There are a bunch of folks reporting broken/bruised hands on Carnival forums online and some reporting that the dealership service center has made an adjustment from the manufacturer that results in the door auto stop/ reverse being much more sensitive, after checking NHTSA and making a report. I'd like to know if this is an option?

Rear sliding door safety sensors not working properly. Doors do not stop closing unless excessive force is applied by an adult before the sensors start working. Young children would not be able to stop the door from closing on them and likely would get hurt because of it.

Rear automatic door shut on adult even after bumping into the individual. The sensor did not stop the door from closing. This could have caused serious injury, especially if this were to happen to a kid.

The door closing automation applies excessive force before the safety function engages to re-open. This poses a high risk to children and small adults with narrow limbs and/or the fingers of any aged person. On January 11, 2023, my 4 year old's hand was closed in the door without the door stopping or re-opening. This resulted in deep lacerations to his fingers and swelling necessitating emergency room medicine and imaging to eliminate potential of fracture. I tested this morning with the doors by opening and closing and inserting objects as well as my body to determine an approximation of closing force. Even with a full sized adult, the closing force is sufficient to move the trunk of an adult body to the side before safety mechanisms engage. Door travel continues for 2 to 3 inches before safety retraction engages. Children arms, feet, or other appendages are narrow enough that they will be impacted with the force of the mechanism in a pinching mechanic before the safety engages and allows removal of the limb. In this case, the fingers of a child closing their own door was not sufficient to activate the safety mechanism and the door closed fully, causing (thankfully) minimal injury. I have contacted Kia service this morning and will follow their directions. Internet research indicates no recall or technical service bulletin for this problem at this time.

Very small rock hit windshield and cracked entire windshield; crack spread quickly and has continued to progress

Sliding door shut on toddlers fingers, the safety mechanism for the door to open failed.

Daughter presses the button on the inside of the van. She didn't move her hand soon enough out of the way for the door to close. The door closed on her hand, she had to press the button open from the door closing on her thumb. She came balling her eyes out to me. Her thumb swelled 3 x's as big. The sensor should be way more sensitive like a garage door opener.