Frequently Asked Questions

What is the first thing to check when the check engine light comes on for a 2026 Toyota 4Runner?

• Confirm the gas cap is tight and undamaged — a loose cap is a common, low-cost cause.
• Check oil and coolant levels; low fluids can trigger engine warnings and risk damage.
• Note recent driving behavior or fuel fill-ups and any new noises — this context helps diagnosis.
• If the light is flashing or the vehicle runs poorly, stop driving and have the vehicle inspected immediately.
• Bring the vehicle to Toyota of Greenville for OEM diagnostics; warranty-covered repairs must be done at a certified dealership.

How much does a check engine light diagnostic cost for a 2026 Toyota 4Runner?

• Diagnostics typically include computerized scanning and a technician inspection; Toyota of Greenville offers transparent pricing and value.
• We often cost less than independent shops, while delivering factory-trained technicians and OEM parts for immediate and long-term savings.
• If a warranty repair is required, work must be performed at a certified dealership to maintain coverage.
• Estimates are provided before any repair; unexpected issues are communicated clearly to avoid surprises.
• See our Service Specials for current offers and savings on diagnostics and repairs.

What does it mean when the check engine light comes on in a 2026 Toyota 4Runner?

• The light signals the vehicle’s onboard computer detected a fault — causes range from simple to serious.
• Possible issues include emissions system faults, sensor failures, ignition misfires, or fuel system irregularities.
• Not all codes indicate imminent breakdown, but any persistent light should be scanned to prevent costly follow-on damage.
• Certified diagnostics at Toyota of Greenville ensure accurate code interpretation and correct OEM repairs.
• Addressing codes early often reduces repair costs and protects long-term value and fuel efficiency.

How long does a check engine light service take?

• Simple diagnostics and minor fixes (e.g., tightening a gas cap or clearing a false code) can take 30–60 minutes.
• Comprehensive diagnostics or parts replacement generally require 1–3 hours, depending on findings and parts availability.
• Major repairs that affect the exhaust, ignition, or engine internals may take longer; we'll provide a clear timeline after inspection.
• Toyota of Greenville’s factory-trained technicians use OEM tools to speed accurate diagnosis and reduce repeat visits.
• We prioritize prompt service and transparent scheduling to deliver immediate and long-term savings versus protracted independent repairs.