Frequently Asked Questions

What is the most common reason for check engine light on a 2023 Hyundai Santa Fe Plug-In Hybrid?

• Most frequently it's related to emissions and ignition systems — oxygen sensors, catalytic converter efficiency, or engine misfires.
• For plug-in hybrids, battery management or charging system faults can also trigger the light and need specialized diagnostic tools.
• Ignoring these codes invites higher repair costs later: a bad O2 sensor is inexpensive to replace, but a damaged catalytic converter or hybrid battery can be costly.
• Bring your vehicle to Nalley Hyundai so factory-trained technicians can diagnose correctly and protect any warranty—repairs covered under warranty must be performed at a certified dealership.

What does it mean when the check engine light comes on in a 2023 Hyundai Santa Fe Plug-In Hybrid?

• The light signals that the vehicle's onboard diagnostics detected a fault in engine, emissions, or hybrid systems.
• It can range from a loose gas cap to issues affecting fuel economy, performance, or emissions controls—some faults are minor, others urgent.
• Because this is a plug-in hybrid, diagnostics may involve both gasoline engine and electric drive systems; our dealer-grade scanners read all relevant codes.
• Having Nalley Hyundai diagnose and repair your vehicle safeguards warranties and often yields immediate and long-term savings versus independent shops while delivering factory-level service.

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

• Start with simple checks: ensure the fuel cap is tightened and inspect for obvious leaks or smells—loose or damaged caps commonly trigger codes.
• If the vehicle behaves normally, schedule a diagnostic scan promptly to prevent escalation; if the car runs poorly or the light flashes, stop driving and seek service.
• For plug-in hybrids, check charge status and charging equipment; some electrical or hybrid-system faults present similarly to engine codes.
• Nalley Hyundai’s certified technicians use factory tools to identify root causes; remember that warranty repairs must be completed at a certified dealership to remain valid.

How much does a check engine light diagnostic cost for a 2023 Hyundai Santa Fe Plug-In Hybrid?

• Diagnostic fees vary, but at Nalley Hyundai you get precise, dealer-grade diagnostics that often reduce immediate and long-term repair costs by pinpointing the true issue.
• Typical diagnostic scans can be an economical first step; many issues are minor and inexpensive to fix, while complex hybrid or catalytic problems are more costly.
• We frequently cost less than independent shops while offering factory-trained technicians, genuine parts, and warranty protection—repairs covered under warranty must be done at a certified dealership.
• Contact Nalley Hyundai for current diagnostic pricing and available specials; accurate diagnosis prevents unnecessary parts replacement and saves you money over time.

How long does a check engine light service take?

• Simple scans and minor repairs often take under an hour; more involved diagnostics or repairs—especially those involving hybrid systems—can take several hours or longer.
• Actual time depends on the fault: sensor replacements are quick, while catalytic converter, hybrid battery, or complex engine repairs require more time and parts.
• Nalley Hyundai offers transparent timelines and prioritizes efficient repairs with factory tools, which shortens diagnostic time and reduces labor costs in many cases.
• Choosing the dealership can deliver immediate savings and better long-term value since warranty-covered repairs must be completed at a certified dealership to maintain coverage.