Frequently Asked Questions

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

• Check for obvious issues first: a loose or missing gas cap, visible fluid leaks, or unusual noises.
• Look for dashboard alerts that accompany the light—these can narrow the cause quickly.
• If the vehicle runs normally, schedule a diagnostic; if it runs poorly or the light is flashing, stop driving and seek immediate service.
• Nalley Hyundai’s factory-trained technicians use OEM scanners to read stored trouble codes and freeze-frame data so the correct repair is identified right away.
• Remember: repairs covered under warranty must be performed at a certified dealership to preserve coverage and ensure long-term savings.

What does it mean when the check engine light comes on in a 2025 Hyundai Tucson Plug-In Hybrid?

• It indicates the vehicle’s onboard diagnostics detected a fault in emissions, engine, or hybrid systems that needs attention.
• Codes range from minor (loose gas cap) to serious (misfires, catalytic converter, or hybrid component faults).
• Nalley Hyundai provides precise diagnostics with Hyundai-specific tools to determine severity and whether immediate action is required.
• Addressing faults at our dealership often costs less than independent shops because we eliminate repeated repairs with accurate diagnosis and OEM parts.
• Warranty-covered repairs must be completed at a certified dealership to maintain benefits and avoid future out-of-pocket costs.

What is the most common reason for check engine light on a 2025 Hyundai Tucson Plug-In Hybrid?

• Common triggers include loose or faulty gas caps, oxygen sensor issues, misfires, and evaporative emissions leaks.
• Plug-in hybrid systems can also produce codes related to battery or inverter management that require trained Hyundai technicians to diagnose.
• Minor issues are often inexpensive to fix, but ignoring them can lead to larger, costlier repairs like catalytic converter damage.
• Nalley Hyundai uses OEM parts and documented repairs that protect warranty eligibility and deliver greater long-term savings than piecemeal fixes.
• We prioritize transparent estimates and explain immediate versus long-term costs so you can make the best decision for your vehicle.

How long does a check engine light service take?

• Initial diagnostics typically take 30–90 minutes depending on the complexity and whether freeze-frame data or hybrid system checks are required.
• If parts or additional testing are needed, repairs can take longer; we provide clear timelines and updates.
• Nalley Hyundai’s technicians are trained on Hyundai’s 1.6L turbo plug-in systems, which speeds accurate diagnosis and reduces repeat visits.
• We often save customers money immediately and over time by diagnosing correctly the first time and using OEM parts that last longer.
• Any warranty-covered work must be completed at a certified dealership to preserve protection and long-term value.

How much does a check engine light diagnostic cost for a 2025 Hyundai Tucson Plug-In Hybrid?

• Diagnostic fees vary but are often comparable to or less than independent shops because Nalley Hyundai’s accurate testing reduces unnecessary repairs.
• Typical scan and diagnostic appointments start at a modest flat rate; the exact price is provided up front after initial inspection.
• We emphasize immediate and long-term savings: accurate diagnosis prevents costly repeat repairs and keeps warranty benefits intact.
• If the issue is covered by warranty, repairs must be completed at a certified dealership—this preserves coverage and lowers your out-of-pocket expense.
• Contact Nalley Hyundai for a transparent estimate and to schedule a prompt diagnostic at our GA facility.