This page covers 3 recalls, 32 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2025 Kia K4.
29–34 mpg combined
6.9–8.1 L/100km
Midsize Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 3 tested variants for this model year.
5/5 Overall
NHTSA 5-Star Safety Rating
Lane departure and driver assistance features generate the most complaints for the 2025 Kia K4. Owners most frequently report the lane departure system behaving unexpectedly or intervening in ways they didn't intend, which tracks as the top complaint category by a clear margin. Electrical system reports describe things like warning lights illuminating and instrument panel issues, including a pattern where the passenger-seat airbag warning light stays on persistently. A couple of owners report airbags not deploying in collisions they describe as significant impacts. One owner reports a steering system that became unresponsive while driving, though that appears to be an isolated report. A separate isolated report describes a high-pitched whining noise that rises with acceleration and fades when the driver lifts off the gas.
32
Total Complaints
7
Crash-Related
3
With Injuries
By System
The 2025 Kia K4 has 3 recalls, the most serious involving engine connecting rod bolts that may not be properly tightened, which can cause a sudden loss of drive power while the vehicle is moving.
The other two recalls both involve the instrument panel display and describe the same underlying issue: a software error can cause the display to go blank while driving, taking the speedometer, fuel gauge, tire pressure readout, and warning lights with it. One of these filings only affects vehicles equipped with a 12-inch display. Without that information visible, a driver may not notice low tire pressure, a warning condition, or how fast they are traveling.
At a glance
What can fail
A software issue can cause the instrument cluster display to go blank while driving, preventing you from seeing the speedometer, fuel gauge, tire pressure warnings, and other dashboard information.
What the fix does
Kia will send a wireless software update to your vehicle or you can schedule a dealership appointment to have the instrument cluster software updated.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP).
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error can cause the instrument panel display to fail, preventing you from seeing important controls and tire pressure information.
What the fix does
Kia will update the instrument panel display software through an over-the-air update or at a dealer, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Engine connecting rod bolts may not be tight enough, potentially causing sudden loss of driving power.
What the fix does
Dealers will replace the engine sub-assembly at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
