Frequently Asked Questions

What is the most common reason for check engine light on a 2026 Kia K5?

• Common causes include a loose gas cap, faulty oxygen sensor, ignition misfire, evaporative emissions (EVAP) leaks, or catalytic converter issues.
• Loose gas cap problems are inexpensive to fix but can leave codes active until properly diagnosed; a dealer visit quickly confirms and clears the issue.
• Oxygen sensors and ignition components are moderate-cost repairs; timely dealer service can prevent higher downstream costs like catalytic converter failure.
• Repairs covered under warranty must be performed at a certified dealership to protect coverage and ensure OEM parts are used.

What does it mean when the check engine light comes on in a 2026 Kia K5?

• It signals the vehicle’s onboard diagnostics detected a fault—ranging from minor emissions issues to engine misfires that can affect drivability.
• Some codes are informational; others require immediate attention to avoid damage and higher repair costs.
• Our technicians use factory-grade scanners to read codes, explain implications, and recommend repairs that preserve performance and warranty eligibility.
• Choosing Nalley Kia often costs less than independent shops in the long run thanks to accurate diagnosis, OEM parts, documented service history, and service specials.

How much does a check engine light diagnostic cost for a 2026 Kia K5?

• Diagnostics at a certified dealer typically range from a modest diagnostic fee to bundled promotions listed under our Service Specials; check current offers at /specials/service.htm.
• At Nalley Kia you benefit from quick, accurate lab-quality diagnostics and factory-trained technicians, which reduces misdiagnosis and unnecessary repairs.
• Because dealers use OEM parts and correct procedures, many customers save on immediate and long-term costs compared with repeated independent attempts to find the issue.
• Remember: warranty-covered repairs must be completed at a certified dealership to maintain coverage and ensure genuine Kia components are installed.

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

• Start with the simple items: confirm the gas cap is fully tightened and inspect for obvious fuel system issues—an easy check that often resolves the light.
• If tightening the cap doesn’t help, a dealer scan is the next step to read stored codes and determine severity without guesswork.
• Our service team will explain whether the code indicates an immediate safety concern or a noncritical emissions issue and provide transparent repair options.
• Warranty-related fixes must be performed at a certified dealership to protect coverage and ensure OEM parts and procedures are used.

How long does a check engine light service take?

• Typical diagnostic scans take 30–60 minutes; simple fixes (like a loose gas cap or a single sensor replacement) can often be completed the same day.
• More complex repairs—such as ignition misfires or catalytic converter replacement—may require parts ordering and longer shop time; our service advisor provides accurate time estimates up front.
• Nalley Kia’s factory-trained technicians and streamlined workflow usually deliver faster, more reliable results, saving you time and money over repeated independent attempts.
• Use our Service Scheduler to book an appointment: Schedule Service. Warranty repairs must be done at a certified dealership to retain coverage.