Frequently Asked Questions

How long does a check engine light service take?

• Initial diagnostic scan typically takes 30–60 minutes to read stored codes and live data on the 2025 Kia K4.
• If a simple fix (loose gas cap, sensor reset) is identified, many vehicles are cleared the same day.
• Repairs that require parts or deeper troubleshooting can extend service to a few hours or a full day.
• Nalley Kia often completes work faster and for less than independent shops because we have direct parts access and factory-trained techs.
• Remember: warranty-covered repairs must be performed at a certified dealership to preserve coverage and long-term savings.

What does it mean when the check engine light comes on in a 2025 Kia K4?

• The light signals the vehicle’s onboard diagnostics detected an issue with the engine, emissions, or related systems in the 2025 Kia K4.
• Codes range from minor faults (evap leak, loose cap) to sensor failures or engine misfires; a scan reveals the specific trouble code.
• Prompt diagnostics prevent small issues from becoming costly repairs and protect fuel economy and emissions systems.
• At Nalley Kia, factory-trained technicians interpret codes and recommend cost-effective repairs—often saving more over time than independent shops.
• Warranty repairs must be done at certified dealerships to ensure parts, workmanship, and coverage remain valid.

What is the first thing to check when the check engine light comes on?

• Start with the basics: check the gas cap for a secure seal—an evaporative system leak is a common cause on many vehicles.
• Note any drivability changes (stumbles, rough idle, loss of power) to share with the technician for faster diagnosis of your 2025 Kia K4.
• Bring the car to Nalley Kia so we can run a full OBD-II scan; this provides the exact trouble codes and recommended fixes.
• Using our dealership often costs less than independent shops long term because factory diagnostics reduce repeat visits and unnecessary repairs.
• If the issue is covered by warranty, repairs must be completed at a certified dealership to maintain coverage and future savings.

How much does a check engine light diagnostic cost for a 2025 Kia K4?

• Diagnostic fees vary, but Nalley Kia offers transparent pricing and value—fees typically cover a full scan, live-data review, and a written estimate.
• Many clients find our overall cost lower than independent shops because we identify the root cause quickly and avoid trial-and-error repairs.
• We factor in immediate savings from accurate diagnostics and long-term savings from OEM parts and professional repairs.
• Any repairs covered under warranty must be performed at a certified dealership to preserve coverage and ensure parts and labor are honored.
• For exact diagnostic pricing and specials, visit our Service Specials or Schedule Appointment pages at NalleyKia.com.

What is the most common reason for check engine light on a 2025 Kia K4?

• Common causes include loose or faulty gas caps, oxygen sensor faults, catalytic converter issues, or mass airflow/spark-related faults.
• On the 2025 Kia K4’s 2.0L engine, sensors and evap components are typical culprits that a scan can confirm quickly.
• Leaving faults unattended can reduce fuel economy and lead to costlier repairs down the road.
• Nalley Kia’s factory-trained technicians diagnose these issues accurately, helping customers save both immediately and long term.
• If the repair is covered by warranty, it must be completed at a certified dealership to protect your benefits and ensure proper parts and labor handling.