K4 (1st)
Reliability Score
Complaints by Engine Code
Kia K4 Unidentified Engine
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Complaint Breakdown
MPI Nu PE
2.0LView details
Complaint Breakdown
Owner Complaints by System
Complaints owners filed with NHTSA about the Kia K4, counted across every engine. A complaint can name more than one system.
Recalls (2)
Kia America, Inc. (Kia) is recalling certain 2025 Kia K4, 2025-2026 Sorento, Sorento Hybrid, Sorento Plug-In Hybrid Electric (PHEV), 2026 Sportage, Sportage Hybrid, Sportage PHEV, K5, EV9, Carnival, and Carnival Hybrid vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Controls and Displays" and 138, "Tire Pressure Monitoring System."
Kia America, Inc. (Kia) is recalling certain 2025 K4 and Sorento vehicles. The connecting rod bolts in the engine may have been improperly tightened, which can cause a loss of drive power.
NHTSA Safety Ratings About NHTSA ratings
Alternatives in Compact Sedan
Frequently Asked Questions
What are the most common 2025-2025 Kia K4 complaints?
Owners have filed 46 complaints with NHTSA about the 2025-2025 Kia K4. The systems they name most often are the safety systems, the electrical system and the engine.
Is the 2025-2025 Kia K4 a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 46 complaints with NHTSA about the 2025-2025 Kia K4. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2025-2025 Kia K4 have?
NHTSA has 46 owner complaints on file for the 2025-2025 Kia K4 as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2025-2025 Kia K4?
NHTSA lists 2 recalls covering some 2025-2025 Kia K4 vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Kia K4?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the safety systems, the electrical system and the engine, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
What are the NHTSA crash test ratings for the K4?
The 2025 Kia K4 received an overall 5-star safety rating from NHTSA. Frontal crash: 4 stars. Side crash: 5 stars. Rollover: 5 stars (9.9% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: Standard & Optional. Lane Departure Warning: Standard. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 46 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-12.