Frequently Asked Questions

What does it mean when the check engine light comes on in a 2012 Hyundai Azera?

• It signals the vehicle’s onboard diagnostics detected an issue — anything from a loose gas cap to emissions, ignition, or sensor faults. Our factory-trained technicians at Larry H. Miller Hyundai Peoria diagnose the code and explain the cause in plain language.
• We use OEM-grade scanners and parts to correct the root cause and protect long-term vehicle value and fuel efficiency. Repairs covered under warranty must be performed at a certified dealership to keep coverage intact.
• Choosing our dealership often costs less than independent shops because we provide accurate diagnostics, durable OEM parts, and transparent pricing that reduces repeat visits and long-term repairs.
• We offer service financing so you can get service now and pay later, and you can view current offers on our service specials.

How long does a check engine light service take?

• Typical diagnostics take 30–60 minutes; simple repairs can be completed the same day. More complex issues may require additional parts or longer diagnostic time — we’ll give a clear estimate before any work begins.
• At Larry H. Miller Hyundai Peoria we prioritize quick turnarounds with certified technicians and efficient service lanes to minimize your downtime in Peoria, AZ.
• We emphasize immediate and long-term savings: precise diagnostics reduce unnecessary repairs and restore fuel economy and reliability faster than guesswork repairs done elsewhere.
• Ready to act? Please schedule service online to reserve a convenient time slot.

How much does a check engine light diagnostic cost for a 2012 Hyundai Azera?

• Diagnostic fees vary, but our pricing is competitive and transparent. We often cost less than independent shops thanks to efficient, accurate diagnostics that prevent repeat visits.
• If repairs are needed, we provide detailed estimates and explain potential immediate and future savings from using OEM parts and certified labor.
• Warranty-covered repairs must be performed at a certified dealership to remain valid; our advisors will confirm coverage before performing any work.
• We accept service financing to help you get necessary repairs now and pay over time. Check available deals on our service specials or schedule appointment to discuss options.

What is the most common reason for check engine light on a 2012 Hyundai Azera?

• The most common causes include a faulty oxygen sensor, loose or damaged gas cap, misfiring spark plugs/coils, or catalytic converter issues. Left unchecked, these problems raise emissions, reduce fuel efficiency, and can cause expensive downstream damage.
• Our technicians at Larry H. Miller Hyundai Peoria diagnose the exact code and recommend the most cost-effective path — often saving you money immediately and over the vehicle’s lifecycle.
• We prioritize transparency: you’ll get a clear scope of work, estimate, and timeline. Warranty repairs must be done at certified dealerships to preserve coverage.
• Use our schedule service link to book a diagnostic or view current service specials before you visit.

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

• Check the gas cap for tightness — a loose cap is a simple fix that can clear the code. If the light remains, get a full diagnostic to identify sensor or system faults.
• At Larry H. Miller Hyundai Peoria we perform a professional scan that reads pending and stored codes, supplies an honest diagnosis, and recommends OEM repairs when needed.
• Choosing dealership service often reduces long-term costs by preventing misdiagnosis and repeated fixes. Repairs under warranty must be completed at certified dealerships to maintain protection.
• We offer service financing, convenient online booking, and appealing service specials. Click to schedule service today.

Check Engine Light Flashing

The moment your check engine light flashes on a 2012 Hyundai Azera, treat it as urgent: a flashing light typically indicates a severe misfire or condition that can damage the catalytic converter or engine if driven. At Larry H. Miller Hyundai Peoria in Peoria, AZ, our factory-trained technicians prioritize flashing-light diagnostics and will immediately secure your vehicle, run a thorough scan, and identify whether the issue is ignition, fuel, or sensor related. We provide a transparent explanation of required repairs and the cost-benefit of prompt service vs. deferring repairs — immediate action often avoids expensive repairs later, preserving long-term resale value and fuel economy. Our service lanes are set up for fast, accurate turnaround and we use OEM parts to ensure reliability. We also offer service financing so you can address urgent repairs now and pay over time. Look for current offers on our service specials, then schedule appointment online or call to arrange priority attention. Don’t risk further damage — come to Larry H. Miller Hyundai Peoria for a rapid, trusted repair experience and transparent pricing.

2012 Hyundai Azera Check Engine Light Reset

Resetting the check engine light on a 2012 Hyundai Azera may seem straightforward, but clearing codes without repairing the root cause can lead to recurring issues and missed emissions failures. At Larry H. Miller Hyundai Peoria we explain why a reset should follow a complete diagnostic: modern vehicles store pending and permanent codes that indicate systemic issues; a simple reset masks symptoms and may cost more in the long run. Our dealership uses OEM diagnostic tools and follows Hyundai-recommended procedures, ensuring codes are resolved correctly and covered repairs remain valid under warranty when applicable. We prioritize transparency — you’ll receive a written estimate, an explanation of parts and labor, and a timeline. Using genuine Hyundai parts and certified technicians enhances longevity and reduces repeat visits, often making dealership service more economical than independent shops over time. We also provide service financing to help you proceed without delay and list current discounts under service specials. To protect your vehicle and warranty, schedule service with us and let our team perform a reliable repair and reset.

2012 Hyundai Azera Check Engine Light Codes

Common check engine light codes for a 2012 Hyundai Azera include P0300 (random/multiple misfires), P0420 (catalyst system efficiency), P0171/P0174 (fuel system lean), and oxygen sensor codes (e.g., P0130 series). Each carries escalating consequences when ignored: misfires can destroy catalytic converters, P0420 left unrepaired degrades emissions performance and can fail inspections, and persistent lean conditions accelerate engine wear and reduce fuel economy. At Larry H. Miller Hyundai Peoria in Peoria, AZ, our certified technicians decode each fault, detail the cost of deferred repairs, and recommend OEM solutions that restore performance and protect resale value. We emphasize customer convenience with comfortable waiting areas, efficient service lanes, and reliable turnaround times. Choosing our dealership often avoids hidden costs from misdiagnosis at independent shops — we provide accurate fixes that deliver immediate savings on fuel and prevent costly follow-up repairs. For pricing and promotions see our service specials, and when you’re ready you can schedule service online. Trust the expertise and warranty protection of Larry H. Miller Hyundai Peoria for dependable diagnostics and long-term value on your 2012 Hyundai Azera.