Frequently Asked Questions

What is the most common reason for check engine light on a 2026 Toyota Highlander Hybrid?

• Common causes include a loose or faulty gas cap, oxygen (O2) sensor issues, mass airflow sensor faults, ignition misfires, and evaporative emission (EVAP) system leaks.
• Some issues are minor and inexpensive to fix; others, like catalytic converter damage, can be costly if ignored.
• Ignored symptoms often lead to reduced fuel economy, higher emissions, and increased repair bills over time.
• Bill Estes Toyota’s factory-trained technicians diagnose root causes accurately, helping you save immediately and long-term compared with many independent shops.
• Remember: any repairs covered under warranty must be performed at a certified dealership to preserve coverage.

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

• The light signals that the vehicle’s onboard diagnostics detected a fault in emissions, engine, or drivetrain systems monitored by sensors.
• It can range from a simple alert—like a loose fuel cap—to serious issues such as misfires that risk catalytic converter damage.
• Severity varies: a steady light usually indicates a stored fault; a flashing light often signals an urgent condition that requires immediate attention.
• Our dealership uses OEM diagnostic tools to identify precise trouble codes and recommend the right repair, protecting long-term value and warranty eligibility.

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

• Start with simple checks: ensure the gas cap is tightened and inspect for obvious leaks or low fluid levels.
• If the cap is secure and the light stays on, avoid guessing—get a professional scan to read diagnostic trouble codes (DTCs).
• Driving with an unknown problem can worsen damage; if the light is flashing, stop driving and have the vehicle towed to the dealership.
• Bring your Highlander Hybrid to Bill Estes Toyota for a full scan and transparent estimate—repairs covered under warranty must be done at a certified dealership.

How much does a check engine light diagnostic cost for a 2026 Toyota Highlander Hybrid?

• Diagnostic costs vary by complexity; a basic scan often starts at a modest diagnostic fee while in-depth diagnosis can be higher depending on testing required.
• Bill Estes Toyota frequently offers competitive pricing and specials that can make dealership diagnostics less expensive than many independent shops, while providing factory-trained technicians and OEM parts.
• Choosing the dealership delivers immediate savings through accurate diagnosis and long-term savings by preventing misdiagnosis and repeat repairs.
• For any repair covered under warranty, work must be completed at a certified dealership to preserve coverage—our team will clearly explain costs and warranty implications.

How long does a check engine light service take?

• Time to service depends on the issue: a simple code read and fix (like tightening a gas cap or replacing a sensor) can be completed in under an hour.
• More complex diagnostics, road testing, or repairs (such as misfire troubleshooting or catalytic converter work) typically take several hours and may require scheduling.
• Bill Estes Toyota prioritizes clear timelines—our technicians use OEM procedures to locate and repair issues efficiently, reducing repeat visits and saving you time and money.
• If a repair is warranty-covered, having it performed at a certified dealership ensures proper documentation and protection for future service needs.