2025 Kia CarnivalFuel Economy & MPG Ratings

Gasoline Minivan - 2WDFront-Wheel Drive
2025 Kia Carnival

Photo: OWS Photography. CC BY 4.0. via Wikimedia Commons

City
18
MPG
Highway
26
MPG
Combined
21
MPG

Trim Comparison

Automatic (S8)
Regular
City
18
Hwy
26
Comb
21
Fuel cost: $3,200/yr
Annual Fuel Cost
$3,200

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings
$-4,000

vs. average new vehicle

EPA Fuel Economy Score: 4/10
GHG Score: 4/10

Environment

CO₂ Tailpipe Emissions
426 g/mile
Annual Petroleum Consumption
14.2 barrels

Specifications

Engine
3.5L 6-cyl
Transmission
8-speed Automatic
Drivetrain
FWD
Body Style
Minivan/Van
GVWR
Class 2 (6,001–8,500 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size
3.5L, 6-cylinder
Induction Type
Direct Injection
Fuel Type
Regular Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default
$4.490/gal$3,207/yr
California
$5.957/gal$4,255/yr
Texas
$3.888/gal$2,777/yr
Florida
$4.136/gal$2,954/yr
New York
$4.522/gal$3,230/yr
Ohio
$4.510/gal$3,221/yr
Washington
$5.591/gal$3,994/yr
Colorado
$4.618/gal$3,299/yr
Minnesota
$4.344/gal$3,103/yr
Massachusetts
$4.448/gal$3,177/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 21 MPG combined. Regular gasoline prices. Actual costs vary.

NHTSA Safety Ratings

Source: NHTSA (nhtsa.gov)

Crash Test Scores

Front Crash — Overall
Front Crash — Driver Side
Front Crash — Passenger Side
Rollover
Rollover Probability14.0%

Safety Equipment

Forward Collision Warning: Standard & OptionalLane Departure Warning: Standard
111
Owner Complaints
1
Recalls
0
Investigations

Recall History1

Source: NHTSA

Owner-Reported Problems111 complaints

Source: NHTSA

NHTSA has received 111 owner complaints for the 2025 Kia Carnival. Top reported issues include electrical system, engine and advanced safety (adas). The data below is sourced from consumer complaints filed directly with NHTSA.

Problems by System / Component

Electrical System
77
Engine
13
Advanced Safety (ADAS)
6
Fuel System
6
Power Train
5
Lighting
5
Structure
4
Air Bags
2

2025 Kia Carnival problems by category: Electrical System: 77 complaints, Engine: 13 complaints, Advanced Safety (ADAS): 6 complaints, Fuel System: 6 complaints, Power Train: 5 complaints, Lighting: 5 complaints, Structure: 4 complaints, Air Bags: 2 complaints.

0
Crashes Reported
0
Fires Reported
5
Injuries Reported

Sample Owner Complaints

Electrical SystemFiled: 11/03/2025ODI#11697106
I live in Alabama. Temperature here is 34 degrees so far in the morning. My check engine light is on. I have taken it in and had diagnostics and they can't find a code or code history. My heat and AC …
Power TrainFiled: 09/04/2025ODI#11685082
Vehicle Malfunction Report What component or system failed or malfunctioned, and is it available for inspection upon request? The vehicle's transmission and/or gear shifter system has failed to functi…
Power TrainFiled: 06/18/2025ODI#11667760
While I was driving on a highway, my vehicles "check engine" and "batter" lights were illuminated and a warning came across the car screen that said something along the lines of "Battery Management Sy…

Complaint data is sourced from the NHTSA Complaints Database. Reports are filed by vehicle owners and may not reflect confirmed defects. Last updated via NHTSA API.

Related

Kia Carnival MPG History
See how this model's fuel economy changed by year

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