2025 Hyundai Sonata Check Engine Light

Certified technicians, only the experts.
Frequently Asked Questions

2025 Hyundai Sonata Battery & Engine Light Services — Larry H. Miller Hyundai Peoria

Keep your 2025 Hyundai Sonata running reliably with certified battery replacement and engine light diagnostics from Larry H. Miller Hyundai Peoria in Peoria, AZ. Our factory-trained technicians use OEM parts and the latest diagnostic tools to find problems fast and deliver long-term value.

2025 Hyundai Sonata

Frequently Asked Questions

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

  • It signals your vehicle’s onboard diagnostic system detected an issue — anything from a loose gas cap to an emissions or engine performance fault.
  • At Larry H. Miller Hyundai Peoria we diagnose the root cause with OEM-grade scanners to avoid unnecessary repairs and to protect engine life.
  • We often cost less than independent shops while providing factory-backed parts, warranty protection, and immediate and long-term savings through accurate repairs.
  • If repairs are covered under warranty, they must be completed at a certified dealership to preserve coverage — we handle that process for you.
  • To get prioritized attention, schedule service with our team today.

How long does a check engine light service take?

  • Most diagnostics are completed within 30–90 minutes depending on the complexity and findings.
  • If further repairs are needed, our technicians will explain options, timelines, and expected costs before any work begins.
  • We emphasize transparency, fast turnaround, and OEM parts so repairs last, improving long-term savings and reliability.
  • Ask about current service specials and our service financing to get repairs now and pay later.

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

  • Diagnostic pricing can vary; at Larry H. Miller Hyundai Peoria we offer competitive rates and clear estimates after inspection.
  • Because we use factory tools and certified techs, many customers find our total repair costs and lifetime value beat independent shops.
  • Immediate savings come from precise diagnostics that prevent unnecessary parts replacement; long-term savings come from OEM-quality work and warranty-backed repairs.
  • We also provide service financing so you can address issues today and pay over time.

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, ignition coil or spark plug wear, and minor emissions faults.
  • Even simple fixes should be verified with a diagnostic scan to avoid recurring faults and protect fuel economy and emissions systems.
  • Our certified technicians quickly identify the cause, explain options, and use OEM parts so repairs are durable and backed by warranty.
  • To take advantage of service specials and fast turnaround, schedule appointment online.

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

  • Start with the basics: ensure the gas cap is tight — a loose cap is a common trigger and easy to fix.
  • If the light persists, bring your 2025 Hyundai Sonata to Larry H. Miller Hyundai Peoria for a professional scan and accurate diagnosis.
  • We’ll outline immediate fixes, long-term maintenance recommendations, and any warranty implications; repairs covered under warranty must be performed at a certified dealership.
  • Use our schedule service page to book a diagnostic or view current service specials.

2025 Hyundai Sonata Check Engine Light Reset

Resetting the check engine light on a 2025 Hyundai Sonata may seem simple, but clearing the code without addressing the underlying issue risks repeat faults and hidden damage. At Larry H. Miller Hyundai Peoria our technicians perform a full scan and troubleshoot the cause before resetting any stored codes. We verify sensor operation, inspect ignition components, and confirm emissions-system integrity so you leave with a safe, reliable car rather than a temporarily cleared warning. Choosing dealership service ensures transparency — you receive a clear estimate, an explanation of required repairs, and a timeline. We install OEM parts and uphold warranty coverage where applicable; remember, warranty repairs must be done at a certified dealership to remain valid. To make service easy, explore our current service specials, ask about service financing, and schedule service online for a rapid, trustworthy visit.

2025 Hyundai Sonata Check Engine Light Codes

Common diagnostic trouble codes for a 2025 Hyundai Sonata include oxygen sensor faults (affecting fuel trim and emissions), misfire codes (ignition coil or spark plug wear), and EVAP system codes from a loose gas cap or venting issue. Left unaddressed, oxygen sensor failures reduce fuel economy and can damage catalytic converters — a far costlier repair. Misfires degrade performance and can cause catalytic overheating, while EVAP leaks increase emissions and reduce fuel efficiency. At Larry H. Miller Hyundai Peoria in Peoria, AZ, our certified technicians use factory scanners to interpret codes accurately and recommend the most cost-effective repair path. That precision often results in lower overall costs than independent shops because we avoid unnecessary parts replacement and protect long-term vehicle value. We provide a clear repair plan, OEM parts, and manufacturer-aligned service to preserve warranties. When you’re ready, schedule appointment and review our service specials for added value.

Check Engine Light Flashing

A flashing check engine light on your 2025 Hyundai Sonata signals a more urgent condition, typically a severe misfire that can damage the catalytic converter and other engine components. Do not continue driving; stop safely and bring the vehicle to Larry H. Miller Hyundai Peoria immediately. Our dealership prioritizes safety and swift diagnostics — we’ll perform a fast scan to isolate misfires, fuel system problems, or sensor failures and provide a clear cost estimate. We frequently run specials on diagnostics and repairs, and we offer service financing to get urgent work done now and pay over time. Choosing our certified technicians means repairs are completed with OEM parts, backed by warranty, and documented for long-term vehicle health. Protect your Sonata and avoid costly downstream repairs by contacting us to schedule service or view current service specials. Our team at Larry H. Miller Hyundai Peoria is ready to help with fast, dependable service.

Learn more or book service at Larry H. Miller Hyundai Peoria. View our used inventory, new inventory, or all inventory. Need to value a trade? Visit value your trade.

Shop by Vehicle

Used Vehicles

Quick Links

Service by Make