Frequently Asked Questions

What does it mean when the check engine light comes on in a 2020 Hyundai Palisade?

• It signals your vehicle's computer detected a fault—anything from an emissions sensor (like P0420) to a misfire. Our certified technicians at Arapahoe Hyundai in CO run OEM-level diagnostics to identify the exact code and recommend a clear repair plan.
• We often cost less than independent shops while offering factory-trained techs, OEM parts, and transparent estimates that highlight immediate and long-term savings from fixing issues early.
• Repairs covered under warranty must be completed at a certified dealership; ask about service financing so you can get repairs now and pay later. To book, schedule service.

How long does a check engine light service take?

• Most diagnostics are completed within 30–90 minutes depending on code complexity; simple sensor resets are faster, while intermittent misfires or drivability issues may require brief road tests.
• Arapahoe Hyundai prioritizes quick turnaround with advance scheduling, rental/loaner options where available, and clear time estimates—saving you time and keeping your day on track.
• Want to save? Check our service specials and then schedule service online for the next available appointment.

How much does a check engine light diagnostic cost for a 2020 Hyundai Palisade?

• Diagnostic pricing varies by issue, but Arapahoe Hyundai provides competitive, transparent pricing and detailed estimates before any repair. We often cost less than independent shops while delivering factory training and OEM parts that maximize long-term value.
• Choosing the dealership can deliver immediate savings by avoiding misdiagnosis and long-term savings by preventing secondary damage—our techs use OEM scanners to find the root cause quickly.
• We offer service financing so you can address problems now and pay over time; to set an appointment, schedule service.

What is the most common reason for check engine light on a 2020 Hyundai Palisade?

• Common triggers include faulty oxygen sensors, loose gas caps, catalytic converter issues, and engine misfires. Left unchecked, these can reduce fuel economy, increase emissions, and lead to expensive repairs.
• Arapahoe Hyundai in Colorado diagnoses the exact trouble code and outlines the cost and timeline for repair—helping you understand immediate and future savings from timely service.
• Remember: warranty-covered repairs must be performed at a certified dealership. Review our service specials and schedule a service appointment today.

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

• Start with the gas cap—if it’s loose it can trigger a code. If the light persists, professional diagnostics are the next step to avoid hidden damage.
• At Arapahoe Hyundai we use factory-grade tools to confirm codes and present a clear repair plan, emphasizing OEM parts, warranty protection, and long-term reliability.
• We provide transparent estimates, service financing, and quick scheduling. To get started, schedule service or see our service specials.

2020 Hyundai Palisade Check Engine Light Codes

At Arapahoe Hyundai in Aurora, CO, we see recurring check engine codes on the 2020 Hyundai Palisade that tell a meaningful story about maintenance needs and risks. Common codes include P0420 (catalyst system efficiency below threshold), P0300 (random/multiple cylinder misfire), and P0171 (system too lean). Ignoring P0420 can mean catalytic converter failure—repair costs can escalate from a few hundred dollars for sensors to well over $1,000 for replacement. Left untreated, misfires (P0300) damage the catalytic converter and reduce fuel economy; repairing a misfire early usually requires ignition components or injectors, far less costly than downstream damage. A P0171 lean condition often traces to vacuum leaks or fuel delivery problems; ignoring it risks engine overheating and higher emissions. Choosing Arapahoe Hyundai means OEM diagnostics and clear cost breakdowns so you can make informed decisions. We highlight immediate savings by addressing issues early and long-term savings through genuine parts and factory-trained technicians. To protect your Palisade and reduce long-term cost, schedule service and check current service specials.

2020 Hyundai Palisade Check Engine Light Reset

Resetting the check engine light on a 2020 Hyundai Palisade is straightforward with the right tools, but a reset without diagnosis hides the real problem and risks further damage. Our process begins with an OEM scan to capture pending and stored codes, then we repair the root cause before clearing codes. This ensures the issue was resolved rather than masked. At Arapahoe Hyundai our certified technicians use factory software to preserve warranty coverage and verify repairs through test drives and re-scans. We emphasize transparency: you receive a clear estimate showing immediate costs and expected long-term savings from OEM parts and correct repairs. Dealer-performed resets protect warranty claims and maintain vehicle records, which benefits resale value. We also offer service financing to get work completed now and pay over time, plus rotating service specials to reduce out-of-pocket expense. To keep your Palisade reliable, schedule service with our team.

Check Engine Light Flashing

A flashing check engine light on a 2020 Hyundai Palisade signals an active misfire or a condition that could immediately damage the catalytic converter—this is an urgent issue that requires stopping driving and having the vehicle inspected. Driving with a flashing light risks severe engine and emissions-system damage and can increase repair costs substantially. At Arapahoe Hyundai we prioritize flashing-light cases: our technicians perform rapid diagnostics, isolate the cause, and provide transparent recommendations to limit both present and future expense. We offer convenient scheduling, OEM parts, and service financing so you can address urgent repairs without delay. Be sure to review our service specials and contact us for towing or drop-off options if needed. For safety and to protect your Palisade, schedule a service appointment online now or call Arapahoe Hyundai—our certified techs will diagnose and get you back on the road with confidence.