What does it mean when the check engine light comes on in a 2025 Hyundai Sonata?

• It signals your vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to emissions, fuel, or ignition problems.
• At Coggin Deland Hyundai, we run a complete diagnostic to identify the code and recommended repair, using OEM-grade scanners and factory software.
• Choosing our dealership often costs less than independent shops when you consider accurate diagnosis, correct OEM parts, and the long-term savings of preventing further damage.
• Repairs covered under warranty must be completed at a certified dealership to keep your coverage valid; our technicians are Hyundai certified and trained to protect your vehicle’s warranty.
• We offer service financing so you can get necessary repairs now and pay later; to arrange this or to book a time, please schedule appointment.

How long does a check engine light service take?

• Most diagnostics are completed within an hour, though repairs vary — simple fixes (like tightening or replacing a gas cap) can be same-day; more involved repairs may take longer.
• At Coggin Deland Hyundai we prioritize quick turnarounds with transparent estimates; while you wait, enjoy our customer amenities or use a courtesy shuttle when available.
• We clearly explain recommended repairs and their immediate and long-term savings, so you can make a confident decision that preserves vehicle lifespan.
• To expedite your visit and reduce downtime, schedule service online and review our current service specials before arriving.
• Service financing is available to help you prioritize key repairs without delay, and all warranty work must be done at certified dealerships like ours for full protection.

How much does a check engine light diagnostic cost for a 2025 Hyundai Sonata?

• Diagnostic fees vary, but Coggin Deland Hyundai offers competitive, transparent pricing. Our service often costs less than independent shops when factoring in accurate diagnostics, OEM parts, and long-term reliability.
• We provide a clear estimate before any work begins and highlight the immediate savings of fixing issues early to avoid costly downstream repairs.
• Check our service specials for seasonal offers and discounts that reduce out-of-pocket cost.
• If you need help affording repairs, ask our service team about service financing — pay over time while protecting your Sonata.
• Remember, warranty-covered repairs must be performed at a certified dealership to maintain coverage; our Hyundai-certified technicians ensure proper, warranty-safe repairs.

What is the most common reason for check engine light on a 2025 Hyundai Sonata?

• Common causes include loose or faulty gas caps, oxygen sensor issues, catalytic converter problems, or ignition and fuel system irregularities.
• If left unaddressed, these issues can reduce fuel economy, cause higher emissions, and create expensive repairs down the line; our certified diagnostics prevent escalation.
• At Coggin Deland Hyundai we diagnose quickly and recommend OEM repairs that protect performance and resale value, leading to real long-term savings.
• We recommend using our online schedule service tool to reserve diagnostic time and reviewing our service specials for savings.
• Warranty work must be completed at a certified dealership — our team will confirm coverage and complete repairs to manufacturer standards.

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

• Start with the basics: ensure the gas cap is tightened properly; a loose cap is a frequent cause and an easy fix.
• If tightening doesn’t help, bring your 2025 Hyundai Sonata to Coggin Deland Hyundai for a full scan — our technicians use OEM diagnostic tools to read trouble codes accurately.
• We provide clear repair options and explain how prompt service delivers both immediate and long-term savings by avoiding larger repairs.
• Schedule service online via our schedule appointment page and check current service specials to reduce cost; ask our service advisors about financing if needed.
• All warranty-related repairs should be performed at a certified dealership to preserve coverage — our Hyundai-certified team ensures proper documentation and repair quality.

Check Engine Light Flashing

A flashing check engine light signals a potentially severe condition that may damage the catalytic converter or engine if you continue driving. For a 2025 Hyundai Sonata, a flashing light often indicates misfires, ignition or fuel delivery failures, or sensor malfunctions that can lead to overheating or downstream component damage. At Coggin Deland Hyundai in Deland, FL we treat flashing lights as urgent: our Hyundai-certified technicians prioritize these vehicles, run immediate diagnostics, and provide a clear, honest repair plan. Acting quickly often reduces repair scope and expense; delaying repairs increases the chance of extensive damage and higher long-term costs. We use OEM replacement parts and factory procedures to restore performance and protect warranty coverage. Ask about our current service specials and service financing options so you can address urgent repairs right away. To minimize risk and get back on the road safely, schedule service online now or contact our service center for immediate assistance.

2025 Hyundai Sonata Check Engine Light Reset

Resetting the check engine light on a 2025 Hyundai Sonata may seem simple, but a reset without proper diagnosis can mask underlying problems and lead to more expensive repairs later. At Coggin Deland Hyundai we explain when a reset is appropriate versus when a full diagnostic and repair are required. Our technicians use factory-grade tools to clear codes only after confirming the root cause is fixed, ensuring the light doesn’t return and your Sonata remains reliable. We emphasize transparency: you receive a detailed estimate, OEM parts, and documented service that helps preserve resale value and warranty coverage. Dealer service often delivers immediate and long-term savings because correct repairs prevent recurring issues. We also provide service financing to let you address needed repairs now and pay over time. Check our service specials for discounts and schedule service easily online to reserve a convenient appointment at our Deland facility.

2025 Hyundai Sonata Check Engine Light Codes

Common check engine light codes for a 2025 Hyundai Sonata include P0420 (catalyst efficiency), P0300 (random/multiple misfire), P0171/P0174 (fuel trim issues), and oxygen sensor codes. Each code has cost implications: ignoring a P0420 can lead to a ruined catalytic converter and thousands in parts and labor; untreated misfires (P0300) can damage pistons or catalytic systems; fuel trim issues reduce efficiency and accelerate wear. In Deland, drivers trust Coggin Deland Hyundai for precise diagnostics, OEM repairs, and professional service that minimizes both immediate expense and long-term ownership costs. We explain the code, the repair options, and the expected costs, and we often deliver better value than independent shops when factoring diagnostic accuracy, correct OEM parts, and warranty protection. To protect performance and resale value, book diagnostics now — schedule service online — and see current offers on our service specials.