Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2016 Hyundai Equus?

• Diagnostic fees vary by issue but typically fall between $80 and $180 for a complete scan and initial evaluation.
• At Courtesy Hyundai of Tampa you often pay less than independent shops while receiving factory-grade equipment and factory-trained technicians.
• Choosing our dealership delivers immediate savings through accurate diagnostics and long-term savings by preventing misdiagnosed repairs and recurrence.
• Any repairs covered under warranty must be performed at a certified dealership to keep warranty protection intact.

What does it mean when the check engine light comes on in a 2016 Hyundai Equus?

• The light signals the vehicle’s onboard diagnostics has detected an emissions or engine system anomaly, ranging from simple to critical.
• Common causes include a loose gas cap, oxygen sensor faults, misfires, or issues with the catalytic converter or EVAP system.
• Our technicians use Hyundai-specific scanners to read codes and prioritize safety and drivability when recommending repairs.
• Addressing codes promptly at a certified dealership preserves warranty coverage and reduces the chance of costly secondary damage.

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

• Start with the basics: ensure the gas cap is tightened and look for obvious signs—smells, smoke, leaks, or loss of power.
• If the light is steady and vehicle feels normal, schedule a diagnostic; if flashing, stop driving and contact the service department immediately.
• Our service team can perform a quick inspection and scan using factory diagnostic tools to identify the root cause efficiently.
• Repairs covered by warranty must be done at a certified dealership to maintain coverage; we can advise on warranty eligibility during the visit.

What is the most common reason for check engine light on a 2016 Hyundai Equus?

• The most frequently seen issues are a loose or faulty gas cap, oxygen sensor failures, and ignition misfires.
• These conditions can trigger emissions-related codes; early diagnosis prevents catalytic converter damage and performance loss.
• Our Hyundai-trained technicians confirm the true cause with model-specific scanners rather than guessing, reducing repair cost and time.
• Handling these repairs at our dealership often yields better long-term value and preserves warranty protections that require certified-service completion.

How long does a check engine light service take?

• Basic diagnostics and a code read typically take 30–60 minutes; more involved troubleshooting or repairs can take several hours.
• Simple fixes like tightening a gas cap or replacing a sensor are often same-day services when parts are available.
• For complex issues, our advisors will provide an ETA and transparent cost estimate; scheduling in advance via our Service Scheduler helps minimize wait time.
• Using our dealership for service saves time and money long term—factory-trained technicians diagnose correctly the first time, avoiding repeat visits.