Frequently Asked Questions

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

• Common causes include oxygen sensor faults (affecting fuel trim), catalytic converter efficiency codes, engine misfires, and evap system leaks such as a loose gas cap.
• If left unaddressed, small issues can escalate—misfires may damage the catalytic converter, turning a minor repair into a costly replacement.
• At Toyota of Greenville we diagnose quickly and use OEM parts to prevent repeated failures, often costing less than independent shops by avoiding repeat visits and bigger future repairs.
• Remember: any warranty-covered repairs must be performed at a certified dealership to keep coverage valid.

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

• A check engine light signals the vehicle’s onboard diagnostics have detected an emissions or performance-related fault—ranging from a loose gas cap to sensor or engine issues.
• A steady light usually indicates a problem that should be diagnosed soon; a flashing light often indicates a severe issue requiring immediate attention.
• We recommend a prompt scan with a professional-grade OBD-II tool; Toyota of Greenville’s factory-trained technicians provide accurate diagnostics and repair recommendations.
• Using our dealership preserves warranty eligibility and delivers long-term savings by addressing root causes with OEM parts and calibrated repairs.

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

• Start with the basics: ensure the gas cap is tightened—an evaporative emission leak is a frequent, easy fix.
• Check for obvious signs: unusual smells, smoke, or loss of power—if any present, stop driving and have the vehicle inspected.
• Verify fluid levels and look for loose battery connections or disconnected hoses; these quick checks can sometimes resolve minor triggers.
• If the light persists, bring your 2025 Toyota Prius Plug-In Hybrid to Toyota of Greenville for a professional diagnostic to protect your warranty and avoid costly downstream damage.

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

• Diagnostics typically range from $90–$150 depending on depth of testing and any required road testing.
• Repairs vary: O2 sensor replacement commonly runs a few hundred dollars, while catalytic converter work can cost significantly more if delayed.
• Toyota of Greenville often delivers lower total cost than independent shops by combining precise diagnostics, OEM parts, and skilled technicians to prevent repeat failures and long-term expenses.
• Warranty-covered repairs must be completed at a certified dealership to maintain coverage—saving you money and giving peace of mind.

How long does a check engine light service take?

• Initial diagnostics can take 30–90 minutes depending on symptoms and required drive cycles; many simple repairs are completed the same day.
• Complex repairs needing parts or in-depth testing may take longer; Toyota of Greenville stocks many OEM parts to minimize wait time.
• Our factory-trained technicians follow manufacturer procedures, ensuring correct repairs and faster, more reliable outcomes compared with repeated independent fixes.
• Scheduling service with us provides documented repair history and preserves warranty coverage, delivering immediate savings and reduced long-term ownership costs.