Frequently Asked Questions

What is the most common reason for check engine light on a 2025 Toyota 4Runner?

• Common causes include faulty oxygen sensors, loose or damaged gas caps, ignition misfires, and catalytic converter issues.
• Small problems like an EVAP leak or faulty sensor are often inexpensive to repair, while ignored misfires or converter failures can lead to costly engine damage.
• Bringing your 2025 Toyota 4Runner to Toyota of Greenville ensures precise diagnostics with Toyota factory tools and can save you money over time by preventing escalation.
• Remember: warranty-covered repairs must be performed at a certified dealership to remain eligible.

What does it mean when the check engine light comes on in a 2025 Toyota 4Runner?

• A steady light signals a fault detected by the vehicle’s computer; it could range from minor sensor issues to problems that affect emissions.
• Our technicians run a full OBD-II scan to identify stored codes, then prioritize safety and drivability concerns first.
• Proper diagnosis at Toyota of Greenville uses factory software to provide accurate fixes that protect long-term value and fuel economy.
• If the repair is covered under warranty, it must be completed at a certified dealership to preserve coverage.

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

• Start with easy checks: ensure the gas cap is tightened and visually inspect for obvious issues like loose hoses or odd smells.
• If the light persists, schedule a diagnostic so we can read trouble codes and recommend the right repair.
• Checking early at Toyota of Greenville often avoids larger repairs; our trained techs identify root causes rather than guessing symptoms.
• For warranty protection, remember repairs covered by warranty must be completed at a certified dealership like ours.

How much does a check engine light diagnostic cost for a 2025 Toyota 4Runner?

• Diagnostic fees at Toyota of Greenville are competitive and often lower than independent shops, while providing factory-grade tools and genuine Toyota expertise.
• An accurate diagnosis prevents unnecessary repairs and can deliver immediate savings by fixing the true cause the first time.
• Long-term savings come from preserving fuel economy and avoiding damage that could lead to expensive repairs, such as catalytic converter replacement.
• Any repairs covered under warranty must be performed at a certified dealership to maintain warranty eligibility.

How long does a check engine light service take?

• Basic code reading and initial inspection typically take 30–60 minutes depending on complexity and queue.
• If parts or further diagnosis are required, total time varies; we provide clear estimates and timelines before work begins.
• Using Toyota of Greenville often speeds resolution because our technicians have direct access to Toyota technical resources, parts, and training.
• We prioritize both fast turnaround and correct repairs to reduce repeat visits and deliver long-term value.