2025 Kia K4 Report
Known issues, recalls, running costs, and what to check before you buy.

Overall Score
Key Takeaways
- The 2025 Kia K4 has a 5-star overall NHTSA safety rating, indicating strong crash protection.
- A critical engine recall for improperly tightened connecting rod bolts is a major concern for early models.
- An instrument cluster software recall impacts safety display compliance and requires an update.
- Despite a high recall count, consumer complaints are notably absent in the provided data.
2025 Kia K4
Critical Failure Risk
A critical recall addresses improperly tightened connecting rod bolts in the engine. This defect can lead to a loss of drive power, posing a significant safety hazard. The remedy involves replacing the sub-engine assembly.
Early detection can help you avoid a $3,000-$6,000 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
Who This Car Is For
Best for
Buyers prioritizing safety ratings and modern features in a compact sedan.
+2 more buyer-fit notes in the full report
Avoid if
Buyers seeking a historically proven, low-risk used vehicle.
+2 more buyer-fit warnings in the full report
2025 Kia K4 Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2025 Kia K4.
Vehicle Specs
- Fuel Type
- Regular
- Transmission
- Automatic (S8)
- Drivetrain
- Front-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 29
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Most Common Issues
1. Engine Connecting Rod Bolt Failure
Most reportedUsage data observed
2. Instrument Cluster Software Glitch
Usage data observed
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake Inspection - Fluid Level Checks (Coolant, Brake, Washer)
Est. shop cost: $100 - $180
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FAQ
Is the 2025 Kia K4 reliable?
The CarFocal Reliability Score for the 2025 Kia K4 is 6.3/10. Reliability score is 6.3/10. NHTSA recalls: 10. Owner complaints: 0.
How practical is the 2025 Kia K4 for daily use?
Practicality score is 5.0/10. EPA combined economy is 29 MPG.
What is the overall score for the 2025 Kia K4?
The CarFocal Overall Score for the 2025 Kia K4 is 7.4/10. Overall score is 7.4/10 (Good). Confidence 85%. Maintenance 8.4/10. Practicality 5.0/10.
What does it cost to own and maintain a 2025 Kia K4?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake Inspection - Fluid Level Checks (Coolant, Brake, Washer) at 7,500 miles. Estimated first-year maintenance: $300 - $500. Repair prediction highlight: Engine Connecting Rod Bolts (estimated cost Min: $3,000 • Max: $6,000+).
What engine is in the 2025 Kia K4?
Engine specs list 4 • 1.6.
What transmission does the 2025 Kia K4 use?
According to CarFocal's specs for the 2025 Kia K4, transmission is Automatic (S8). The paired drivetrain is Front-Wheel Drive.
What is the combined EPA MPG for the 2025 Kia K4?
EPA combined estimate is 29 MPG.
What driver assistance and safety features are available on the 2025 Kia K4?
15 standard and 1 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
What body style is the 2025 Kia K4?
According to CarFocal's specs for the 2025 Kia K4, body style is sedan.
What drivetrain does the 2025 Kia K4 use?
According to CarFocal's specs for the 2025 Kia K4, drivetrain is Front-Wheel Drive. Transmission is Automatic (S8).
What are the NHTSA safety ratings for the 2025 Kia K4?
NHTSA ratings: Overall 5/5 • Frontal 4/5 • Side 5/5 • Rollover 5/5.
Are there open safety recalls on the 2025 Kia K4?
This model year has 10 official safety campaigns listed.