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Recalls for 2026 Kia K4
1 NHTSA recall for the 2026 Kia K4: 1 seat belts. Latest: Mar 2026.
Seat beltsMar 202626V135000Free repair
Opening the NHTSA description…
Seat belts in the owner's manual → p. 211Campaign 26V135000 at NHTSA ↗
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Recalls for 2025 Kia K4
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2025–2026 Kia K4 FAQ
When should I replace the climate control air filter?
2026
Replace the climate control air filter according to the Maintenance Schedule, or when buildup reduces airflow or causes windshield moisture.
If replacing it yourself is challenging, have an authorized Kia dealer replace it.
Page 314 in the 2026 manual →2025
Replace it according to the Maintenance Schedule to help prevent decreased airflow, reduced heating and cooling performance, and unpleasant odors.
Page 171 in the 2025 manual →What should I do if my smart key does not work?
2026
Try the spare key, or open and close the door with the mechanical key, then contact an authorized Kia dealer.
Page 60 in the 2026 manual →How do I stop remote start?
2026
Press the remote start button once to turn off the vehicle; otherwise, it turns off after 10 minutes without further action.
Page 59 in the 2026 manual →What should I do if the LED headlamp warning light appears or blinks?
2026
After its approximately 3-second startup display, a steady LED headlamp warning light indicates a malfunction, while blinking indicates a related part malfunction.
In either case, have the vehicle inspected by an authorized Kia dealer; continued driving can reduce LED low-beam life.
Page 174 in the 2026 manual →How do I turn on the headlights?
2026
Turn the light-control knob to the headlight setting; the vehicle must be ON, and the low beams, taillights, and license plate lamp will turn on.
Page 195 in the 2026 manual →2025
Moisture after washing or rain is normal and should disappear while driving with the headlamp on, but have a dealer check it if it remains.
Page 451 in the 2025 manual →What does darker automatic transmission fluid mean?
2026
Automatic transmission fluid normally darkens from red as you drive, and color change alone does not mean replacement is needed.
Page 703 in the 2026 manual →How do I prevent the Check Engine light from coming on after refueling?
2026
After refueling, tighten the fuel cap until it clicks once; otherwise, the Check Engine light may illuminate.
Page 14 in the 2026 manual →What should I do if my smart key does not work?
2025
Pull the mechanical key from its protective cover to lock or unlock the door, then contact an authorized Kia dealer.
Keep the smart key away from water or liquids, and separate it from your cell phone or smartphone if the signal may be blocked.
Page 87 in the 2025 manual →Kia K4 complaints to NHTSA
Complaints that owners filed with NHTSA for each model year. They are unverified reports and are not adjusted for how many vehicles were sold.
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All Kia K4 manuals
| Year | Generation | Pages | File |
|---|---|---|---|
| 2026 | 2026 | 809 pages | 13.2 MB |
| 2025 | 2025 | 490 pages | 8.8 MB |
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