Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2024 Toyota Grand Highlander?

• Typical diagnostics range from a basic scan to a full system check; many issues begin with a standard OBD-II scan that identifies stored codes.
• At Toyota of Greenville we offer competitive pricing and service specials — our certified dealership often costs less than independent shops while delivering factory-level service.
• Immediate savings come from accurate diagnosis; long-term savings come from correct repairs that prevent repeat visits and protect resale value.
• Repairs covered under warranty must be performed at a certified dealership to remain valid; we handle warranty diagnostics and repairs end-to-end.

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

• Start with the simplest items: check the gas cap for tightness and visible damage; a loose or faulty cap is a common cause of codes.
• Verify basic fluids and battery condition; low battery voltage can trigger intermittent codes and odd symptoms.
• If the light stays on after these checks, schedule a diagnostic with our service department — proper scanning ensures the real cause is addressed quickly.
• Choosing Toyota of Greenville provides accurate diagnostics, certified technicians, and warranty protection for any covered repairs.

What does it mean when the check engine light comes on in a 2024 Toyota Grand Highlander?

• The check engine light signals that an onboard sensor or system has detected a fault — it ranges from minor emissions issues to engine misfires requiring immediate attention.
• A steady light often indicates a non-critical emissions or performance issue; a flashing light indicates urgent problems that can damage components like the catalytic converter.
• Our dealership uses OEM diagnostics to determine severity and recommended repairs, minimizing unnecessary parts replacement and long-term costs.
• For warranty-covered concerns, repairs must be completed at a certified dealership to ensure coverage; we manage those repairs efficiently and affordably.

How long does a check engine light service take?

• Basic code scanning and an initial assessment can take 30–60 minutes; more complex diagnostics or road testing typically require 1–3 hours.
• If parts or in-depth troubleshooting are needed, total repair time varies — we provide clear estimates and timeframes before work begins.
• Choosing Toyota of Greenville shortens turnaround: factory-trained technicians, dealer-grade tools, and direct parts access reduce wait times compared with many independent shops.
• We focus on immediate and long-term savings by diagnosing correctly the first time and applying warranty coverage when applicable.

What is the most common reason for check engine light on a 2024 Toyota Grand Highlander?

• The most frequent cause is a loose or faulty gas cap creating an evaporative emissions code; it’s simple to fix but important to address promptly.
• Other common causes include oxygen sensor faults, catalytic converter efficiency codes, and ignition misfires from spark plugs or coils.
• Left unchecked, these issues can escalate to higher repair costs and reduced fuel economy — dealer diagnostics identify the true root cause and correct it.
• Warranty-related repairs must be done at a certified dealership; our team handles diagnostics, warranty submissions, and repairs for peace of mind and savings.