Vehicle report
2026 KIA K4
This model year
What the record shows
The 2026 Kia K4 is a midsize car, and the 2nd model year of a nameplate NHTSA records from 2025 to 2026.
The EPA rated one configuration: a single 1.6-litre four-cylinder engine, front-wheel drive only, a single transmission, Automatic (S8) and running on regular gasoline.
Combined fuel economy is 28 mpg.
NHTSA's best overall crash rating for this model year is 5 out of five stars.
The federal record holds 8 owner complaints, 1 safety recall and 7 service bulletins for it.
Counts are reports, not rates. A complaint is something an owner chose to file; it is unverified and unadjusted for how many of these cars were sold, so the useful comparison is against other model years of the same car. Recalls and investigations carry more weight because a manufacturer or regulator acted on them.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.