Frequently Asked Questions

What does it mean when the check engine light comes on in a 2018 Hyundai Ioniq Hybrid?

• It signals the vehicle's onboard diagnostics detected an issue — anything from a loose gas cap to emissions, sensor faults, or hybrid system alerts specific to the 2018 Hyundai Ioniq Hybrid.
• At Larry H. Miller Hyundai Peoria we run a full, dealer-grade scan to identify codes and recommended repairs so you avoid cascading problems and higher repair bills later.
• Choosing our certified technicians often costs less than independent shops when you consider immediate and long-term savings: accurate diagnostics, correct OEM parts, and repairs that maintain fuel economy and longevity.
• Repairs covered under warranty must be completed at a certified dealership to preserve coverage; our team will clearly explain warranty options and next steps.
• When you’re ready, you can schedule service online or check current service specials. We also offer service financing so you can get necessary work done now and pay over time.

How long does a check engine light service take?

• Most diagnostics are completed within an hour; simple repairs can often be finished the same day. Complex issues involving hybrid components may require additional time for parts and safety checks.
• Larry H. Miller Hyundai Peoria prioritizes quick, accurate service with factory-trained technicians and OEM parts — this reduces return visits and minimizes downtime for your 2018 Hyundai Ioniq Hybrid.
• We’ll provide a clear estimate and timeline before any work begins and recommend cost-saving options when available, including dealer service specials.
• To guarantee a convenient appointment, schedule appointment online and choose a time that fits your day.

How much does a check engine light diagnostic cost for a 2018 Hyundai Ioniq Hybrid?

• Diagnostic prices vary, but our dealership often provides competitive pricing that delivers better value than many independent shops due to accurate testing, OEM parts, and long-term savings from correct repairs.
• We’ll give a transparent quote after diagnosis and explain how timely repairs reduce fuel and repair costs over time.
• Remember: warranty repairs must be done at a certified dealership to remain valid — our technicians are Hyundai-trained and certified.
• For pricing and to take advantage of current offers, view our service specials or schedule service to get an exact estimate.

What is the most common reason for check engine light on a 2018 Hyundai Ioniq Hybrid?

• Common causes include loose or faulty gas caps, oxygen sensors, catalytic converter issues, or hybrid battery/charging system alerts specific to the Ioniq Hybrid’s systems.
• Early diagnosis at Larry H. Miller Hyundai Peoria prevents escalation and preserves fuel economy and battery performance over time.
• We recommend addressing the light promptly; our certified technicians ensure correct repairs using OEM parts so your 2018 Hyundai Ioniq Hybrid performs as intended.
• Use our online tools to schedule appointment and review available service specials.

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

• Start with the simple checks: ensure the gas cap is tightened. If the light remains, bring the vehicle in for a full diagnostic scan performed by our technicians.
• We recommend not ignoring the light — prompt evaluation at Larry H. Miller Hyundai Peoria can protect hybrid systems and maintain fuel efficiency.
• If a repair is covered by warranty it must be completed at a certified dealership to remain valid; we’ll verify coverage and guide any paperwork.
• To get started, schedule service online or see current service specials. We also offer service financing to help you pay over time.