Worst years for a KIA K5
Owners have filed 748 complaints about the KIA K5 with NHTSA across model years 2021 to 2026. More of them are about the fuel & propulsion than anything else.
Every KIA K5 year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
What breaks on a KIA K5
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2021
Worst in 2022
Worst in 2025
Worst in 2021
Worst in 2025
Exactly what failed on a KIA K5
The named sub-assemblies behind those complaints, across every model year.
Complaints filed over time
Every complaint about every KIA K5, by the month it reached NHTSA.
KIA K5 problems by state
Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.
Compare the KIA K5
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.