RoadVitals

2023 Kia Carnival Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
49
Latest Aug 4, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
11
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2023 Kia Carnival, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Electrical615.4%
  • Engine512.8%
  • Fuel system37.7%
  • Driver assistance37.7%
  • Interior & seats25.1%
  • Other / unspecified25.1%
  • Seat belts25.1%
  • Steering25.1%
  • Brakes12.6%
  • Visibility12.6%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

12
reports

From owner reports, verbatim

The contact owns a 2023 Kia Carnival. The contact stated that while driving approximately 55 MPH, the driver’s side roof molding ejected from the vehicle. The contact immediately stopped the vehicle but was unable to locate the molding. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in NHTSA Campaign Number: 24V025000 (STRUCTURE). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 77,000.

NHTSA ID 11742271 · filed Jun 5, 2026

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.

NHTSA ID 11695330 · filed Oct 23, 2025
All 12 reports naming body & structure

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

6
reports

From owner reports, verbatim

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.

NHTSA ID 11717587 · filed Feb 12, 2026

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.

NHTSA ID 11590913 · filed May 27, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

5
reports

From owner reports, verbatim

The contact owns a 2023 KIA Carnival. The contact received notification of NHTSA Campaign Number: 26V320000 (ENGINE AND ENGINE COOLING) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

NHTSA ID 11741634 · filed Jun 2, 2026

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

NHTSA ID 11712335 · filed Jan 21, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

3
reports

From owner reports, verbatim

The contact owns a 2023 Kia Carnival. The contact stated that while driving 40 MPH, there was an abnormal fuel odor inside the vehicle, causing the contact’s six children to become dizzy from the odor. No warning light was illuminated. The vehicle was repaired under NHTSA Campaign Number: 26V232000 (FUEL SYSTEM, GASOLINE); however, the remedy failed to fix the vehicle. The contact stated that the failure occurred after the recall repair was performed. The manufacturer was notified of the failure and informed the contact that the dealer might offer a buyback of the vehicle. The manufacturer opened a case. The failure mileage was 58,425.

NHTSA ID 11754708 · filed Aug 4, 2026

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.

NHTSA ID 11719892 · filed Feb 23, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

3
reports

From owner reports, verbatim

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.

NHTSA ID 11541931 · filed Aug 31, 2023

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.

NHTSA ID 11540995 · filed Aug 27, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

2
reports

From owner reports, verbatim

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.

NHTSA ID 11717587 · filed Feb 12, 2026

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.

NHTSA ID 11501879 · filed Jan 15, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

2
reports

From owner reports, verbatim

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.

NHTSA ID 11650351 · filed Mar 24, 2025

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.

NHTSA ID 11642856 · filed Feb 14, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

2
reports

From owner reports, verbatim

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.

NHTSA ID 11648937 · filed Mar 18, 2025

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.

NHTSA ID 11559445 · filed Dec 11, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

2
reports

From owner reports, verbatim

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.

NHTSA ID 11616158 · filed Sep 24, 2024

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.

NHTSA ID 11541931 · filed Aug 31, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

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.

NHTSA ID 11715948 · filed Feb 5, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

1
report

From owner reports, verbatim

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.

NHTSA ID 11608607 · filed Aug 14, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .