Frequently Asked Questions

What is the most common reason for check engine light on a 2019 Toyota Highlander Hybrid?

• Often caused by emissions or fuel-related trouble: failing O2 sensors, catalytic converter efficiency, or fuel trim issues.
• Minor causes include a loose or damaged gas cap and small EVAP leaks; major causes may be misfires or sensor failures.
• If left unaddressed, small faults can escalate into catalytic converter damage or reduced fuel economy, increasing repair costs.
• At Bill Estes Toyota we diagnose with factory-grade tools and factory-trained technicians to find the real cause faster.
• Repairs covered under warranty must be performed at a certified dealership to preserve coverage and ensure long-term savings.

How long does a check engine light service take?

• Basic scan and code read: typically 15–30 minutes to retrieve codes and initial guidance.
• In-depth diagnosis: 1–3 hours depending on intermittent faults or when road testing and sensor checks are required.
• Repairs vary by issue—simple fixes can be same-day; complex items (catalytic converter, engine repairs) may take longer.
• Bill Estes Toyota often completes diagnostics and repairs faster and with fewer revisits thanks to OEM tools and access to genuine parts.
• Fast, accurate service also delivers immediate and long-term savings compared with multiple independent visits.

What does it mean when the check engine light comes on in a 2019 Toyota Highlander Hybrid?

• It indicates that the vehicle’s onboard computer has detected a fault and stored one or more diagnostic trouble codes (DTCs).
• Codes can point to emissions, fuel, ignition, sensor, or hybrid system issues; severity ranges from advisory to critical.
• A steady light usually means a non-urgent but necessary service; a flashing light signals a severe condition that needs immediate attention.
• Bring the vehicle to Bill Estes Toyota for precise code reading and a recommended repair plan using OEM procedures.
• Warranty-covered repairs must be done at a certified dealership to ensure continued coverage and maximize savings.

How much does a check engine light diagnostic cost for a 2019 Toyota Highlander Hybrid?

• Typical scan fees range from $80–$150 for a basic diagnostic; more complex diagnostics may be higher depending on testing time.
• At Bill Estes Toyota, diagnostic fees are often offset by repair work, and our prices frequently cost less than independent shops while delivering higher service quality.
• Choosing our dealership provides immediate savings through accurate diagnosis and long-term savings by preventing misdiagnosed repairs.
• If work is covered under warranty, repairs must be performed at a certified dealership to maintain coverage and avoid future costs.
• Check our Service Specials for current offers that may reduce or waive diagnostic fees: Service Specials.

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

• Check that the gas cap is tightly sealed—this simple fix can clear EVAP system codes and is quick to verify.
• Look for other dashboard warnings or changes in performance such as rough idle, stalling, or reduced power.
• Do not ignore a flashing light—limit driving and have the vehicle inspected immediately to avoid further damage.
• Contact Bill Estes Toyota for a prompt scan so a factory-trained technician can determine whether a repair or simple reset is needed.
• Remember warranty-covered repairs must be completed at a certified dealership to preserve coverage and protect long-term value.