Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2015 Hyundai Sonata Hybrid?

• Typical diagnostic fees vary by issue but commonly range from $90–$150; our dealership often applies diagnostic fees toward repair when you choose us.
• Choosing Courtesy Hyundai of Tampa can cost less than many independent shops because our factory-trained technicians diagnose efficiently and avoid repeat visits, producing immediate and long-term savings.
• Repairs covered under warranty must be performed at a certified dealership to remain valid; we handle warranty diagnostics and repairs to protect your coverage.
• We provide transparent estimates before repairs so you know the full cost and savings potential compared with piecemeal fixes.

What does it mean when the check engine light comes on in a 2015 Hyundai Sonata Hybrid?

• The light indicates the vehicle’s onboard computer detected a fault—ranging from minor emissions issues to serious engine or hybrid system problems.
• Common culprits include EVAP leaks, oxygen sensor faults, misfires, and emissions control faults; hybrid-specific systems can also trigger codes.
• Immediate diagnostics at a certified dealership isolate the root cause and prevent cascade failures that increase repair cost and reduce fuel economy.
• Our factory-trained technicians use Hyundai-specific scan tools to identify hybrid-system codes and apply manufacturer procedures, preserving warranties and long-term value.

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

• Start with simple checks: ensure the gas cap is tightened, look for obvious fluid leaks, and confirm no dashboard warnings indicate critical failure.
• If the vehicle drives normally, book a prompt diagnostic—clearing codes without repair can mask problems and void warranties on covered items.
• If the light is flashing or the car runs poorly, stop driving and have Courtesy Hyundai of Tampa inspect it; immediate service prevents further damage.
• Certified dealership diagnostics protect warranty coverage and deliver accurate repairs from factory-trained technicians using Hyundai-approved parts and procedures.

What is the most common reason for check engine light on a 2015 Hyundai Sonata Hybrid?

• One of the most common triggers is an EVAP system leak—often a loose or damaged gas cap or small hose leak that increases emissions and triggers codes.
• Oxygen sensor failures, catalytic converter efficiency issues, and occasional misfires also rank high; hybrid-system sensors can add unique codes.
• Left unresolved, these issues reduce fuel efficiency and can lead to more expensive repairs like catalytic converter replacement.
• Prompt dealership diagnostics identify the true cause and often resolve inexpensive issues quickly, saving money over time and protecting warranty coverage.

How long does a check engine light service take?

• Diagnostics typically take 30–90 minutes depending on code complexity; some inspections and simple repairs can be completed the same day.
• If deeper testing or parts replacement is required, repair time varies—our service team provides clear timelines and prioritizes efficient, accurate work.
• At Courtesy Hyundai of Tampa, factory-trained technicians and Hyundai tools speed diagnosis and reduce repeat visits, delivering immediate and long-term savings versus longer, iterative repairs.
• Warranty-covered repairs must be completed at a certified dealership; we coordinate parts and keep you informed so your Sonata Hybrid returns to safe, efficient operation quickly.