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Other or unknownPart report

2024 Kia Carnival Other or unknown Problems

Complaints
27about this part
Share
36%of 75 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 27 complaints about the other or unknown of the 2024 Kia Carnival, 36% of the 75 complaints for this model year.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Horn stops working and needs to be replaced within a year or less. I reported the first time my horn stopped working and it took 4 months until I can have an appointment and order the part. The second time it stopped working was within a year and scheduling an appointment was difficult. I was almost in an accident and unable to use to both to alert the other driver.”

NHTSA complaint #11717275, filed 2026-02

“The horn stops working when it’s cold and the horn installed does not match the amperage need for the vehicle. It has failed multiple times. I rarely use my horn. It failed for the first time around 20,000 miles. Separately, I have an oil leak that is also covered under warranty. This car has been serviced countless times and it has been in the shop for three weeks.”

NHTSA complaint #11727093, filed 2026-03

“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.”

NHTSA complaint #11759022, filed 2026-08

“Floor rails are so hot, I had to cover them so my toddler and child could walk across them to get out of the van. The middle seats were taken out and the metal in the floor track gets so hot to even touch. Underneath the car when the car is running is enough to burn one’s legs also.. this is a big issue with us and our Kia and little children.”

NHTSA complaint #11611015, filed 2024-08

“My 2024 Kia Carnival smells strongly like gasoline after about 15–20 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 “normal.” Meanwhile, I can’t park it in my garage because the smell fills my house. I’ve had headaches and nausea, and my kids have complained of headaches and stomach aches too.”

NHTSA complaint #11763500, filed 2026-09

Other or unknown: other model years

YearComplaintsShare of year
20261447%
20252217%
20242736%
20232446%
20223526%

Other parts of the 2024 Kia Carnival

Electrical system
17 complaints
Engine
8 complaints
Fuel system
7 complaints
Steering
7 complaints
Seats
6 complaints
Body and structure
6 complaints
Brakes
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Air bags
2 complaints
Seat belts
2 complaints
Transmission and drivetrain
2 complaints
Vehicle speed control
2 complaints

← All problems reported for the 2024 Kia Carnival

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology