2024 Hyundai Sonata Check Engine Light
Certified technicians, only the experts. Frequently Asked QuestionsFrequently Asked Questions
What does it mean when the check engine light comes on in a 2024 Hyundai Sonata?
- It indicates the vehicle’s onboard diagnostics system detected an issue — anything from a loose gas cap to an emissions sensor or ignition problem.
- At Arapahoe Hyundai in CO, we diagnose the cause quickly using OEM-level scanners and factory procedures, helping you avoid further damage and unexpected costs.
- Our service often costs less than independent shops while delivering factory-trained technicians, OEM parts, and transparency that protect long-term value and fuel efficiency.
- Repairs covered under warranty must be completed at a certified dealership to retain coverage; our team will confirm warranty eligibility before work begins.
- We offer service financing so you can get needed repairs now and pay later; to book, please schedule service.
How long does a check engine light service take?
- Most diagnostics for a check engine light on a 2024 Hyundai Sonata take 30–90 minutes depending on code complexity and road-test needs.
- If additional repairs are required, we provide a clear estimate and timeline; many common fixes are completed the same day thanks to our parts inventory and efficient workflow.
- Choosing Arapahoe Hyundai means faster, more accurate service because our technicians follow Hyundai service procedures and use OEM parts for reliable repairs.
- We highlight immediate and long-term savings by restoring fuel economy and preventing secondary damage; ask about our current service specials for additional value.
- Ready to come in? Schedule service online for a convenient appointment time.
How much does a check engine light diagnostic cost for a 2024 Hyundai Sonata?
- Diagnostic fees vary by issue, but at Arapahoe Hyundai our pricing is competitive and transparent — often less than independent shops when factoring in accurate diagnosis and lasting repairs.
- We provide written estimates before any repair and explain how fixing the root cause delivers immediate savings (reduced drivability issues) and long-term savings (fewer follow-up repairs, preserved resale value).
- If your repair is covered by warranty, it must be performed by a certified dealership to maintain coverage — we will verify this for you and apply any available warranty benefits.
- To make maintenance affordable we offer service financing; contact our service advisors or schedule service online to discuss options.
What is the most common reason for check engine light on a 2024 Hyundai Sonata?
- The most frequent causes include loose or faulty gas caps, oxygen sensors, catalytic converter issues, or ignition components such as spark plugs and coils.
- Ignoring codes can reduce fuel economy, accelerate emissions system wear, and lead to more expensive repairs; Arapahoe Hyundai fixes the issue right the first time with OEM parts and certified technicians.
- We emphasize service transparency: you’ll receive a clear diagnosis, repair options, and expected savings over time.
- Check our service specials for discounts and schedule service online to minimize downtime.
What is the first thing to check when the check engine light comes on?
- Start with the easy checks: ensure the gas cap is tightened. A loose cap is a common trigger on a 2024 Hyundai Sonata and is a quick fix.
- If the light stays on after that, bring your vehicle to Arapahoe Hyundai where we run a complete scan and interpret codes with Hyundai-specific diagnostics.
- We’ll explain recommended repairs, warranty coverage requirements (repairs under warranty must be performed at certified dealerships), and how the right repair saves money over time.
- To act promptly, schedule service online or ask about current service specials to reduce out-of-pocket cost.
Check Engine Light Flashing
A flashing check engine light in your 2024 Hyundai Sonata signals an urgent condition — typically a severe misfire that can damage the catalytic converter and worsen engine performance if ignored. At Arapahoe Hyundai in CO, we treat a flashing indicator as a priority and advise immediate inspection. Our factory-trained technicians use Hyundai-specific scanners and guided troubleshooting to pinpoint spark, fuel, and sensor faults that commonly cause misfires. The cost of delaying service is twofold: immediate risks include reduced power and drivability, while long-term consequences can mean a ruined catalytic converter and much higher repair bills. By diagnosing and repairing the root cause quickly, you save both time and money — fewer repeat visits, preserved emissions equipment, and better fuel economy. We make urgent care simple: contact us to schedule service or ask about our current service specials for promotional savings. Our advisors will explain warranty coverage, financing options to make repairs manageable, and the expected timeline so you can get back on the road with confidence.
2024 Hyundai Sonata Check Engine Light Reset
Resetting the check engine light on a 2024 Hyundai Sonata can be done, but a reset without repair only hides the symptom — the underlying code remains and may return. At Arapahoe Hyundai we recommend a proper diagnostic first: our technicians retrieve and interpret trouble codes, test systems, and perform targeted repairs using OEM parts. Choosing the dealership over an independent shop offers clear advantages: Hyundai-certified technicians, factory tooling, and access to genuine parts and software updates that protect your vehicle’s lifecycle. Transparency is central — you receive a detailed estimate, explanation of immediate and long-term savings from each repair, and confirmation of any warranty coverage. Remember, repairs covered under warranty must be completed at a certified dealership to keep coverage intact. We also offer service financing for unexpected repairs and regularly post discounted options in our service specials. When you’re ready to act, schedule service online to set an appointment that fits your schedule and experience service designed for longevity and peace of mind.
2024 Hyundai Sonata Check Engine Light Codes
Common check engine light codes for a 2024 Hyundai Sonata include P0420 (catalyst system efficiency low), P0300–P0304 (random/multiple-cylinder misfires), P0130–P0141 (oxygen sensor faults), and P0440 (evaporative emissions system). Each code carries different urgency and cost implications. For example, leaving a P0420 unresolved can lead to catalytic converter failure — a repair that may cost significantly more than addressing an upstream sensor or exhaust leak early. Misfire codes left unchecked can damage pistons and catalytic systems, increasing labor and parts costs. At Arapahoe Hyundai in CO, we prioritize accurate, efficient diagnosis to avoid escalating expenses. Our team reviews codes with you, explains how timely repairs reduce total ownership cost, and applies OEM parts to preserve factory performance. We also highlight local convenience — quick appointments, transparent pricing, and amenities while you wait. For savings, check our service specials and consider service financing for larger repairs. Ready to resolve a code? Schedule appointment online and let Arapahoe Hyundai protect your Sonata’s performance and value.
Service by Make
Quick Links
Shop by Vehicle
- 2020 Hyundai Sonata
- 2023 Hyundai Elantra
- 2024 Hyundai Tucson Plug-In Hybrid
- 2023 Hyundai Kona
- 2023 Hyundai Santa Fe Plug-In Hybrid
- 2024 Hyundai Kona
- 2024 Hyundai Tucson Hybrid
- 2023 Hyundai Santa Fe Hybrid
- 2024 Hyundai Tucson
- 2024 Hyundai Elantra
- 2024 Hyundai Palisade
- 2023 Hyundai Sonata
- 2024 Hyundai Venue
- 2024 Hyundai Santa Cruz
- 2024 Hyundai IONIQ 5
- 2023 Hyundai Santa Fe