VehicleVerdict

2023 Kia K5 fuel system problems

The 2023 Kia K5 has 45 fuel system complaints filed with NHTSA — 33% of the year's total, and roughly flat versus the prior model year.

45

Fuel System complaints

33%

Share of year

0

Crash-involved

1

Related recalls

Fuel System complaints by year

K5 fuel system complaints by model year46 complaints2021: 46 complaints2022: 39 complaints2023: 45 complaints2024: 4 complaints
K5 fuel system complaints by model year. Red bars are years to avoid.

Related recalls

25V794000Fuel SystemNovember 17, 2025 · 250,547 units

Defect

Kia America, Inc. (Kia) is recalling certain 2021-2024 K5 vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.

Consequence

A melted fuel tank can leak, increasing the risk of a fire.

Remedy

Dealers will replace the check valve. The fuel tank will be inspected for damage and replaced as necessary. All repairs will be performed free of charge. Owner notification letters were mailed January 16, 2026. Owners may contact Kia customer service at 800-333-4542. Kia's number for this recall is SC356. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 1, 2025.

What owners report

Heard and felt extremely loud BANG under the car while driving then check engine light came on. Vehicle had low power and the gas was decreasing severely fast. The backseat had moved with our 2yr daughter in her car seat above it. Took it to dealership and they said the gas tank expanded and…

Complaint filed with NHTSA · Fuel System · November 15, 2024

Common questions

How many fuel system complaints does the 2023 Kia K5 have?

NHTSA has 45 complaints about the 2023 Kia K5 fuel system — 33% of all complaints filed for that model year.

Are there recalls for the 2023 Kia K5 fuel system?

Yes — 1 NHTSA recall campaign for this model year is tied to the fuel system: 25V794000.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.