Frequently Asked Questions

How long does a check engine light service take?

• Initial diagnostic scan typically takes 30–60 minutes to read stored codes and live-data.
• Minor repairs (tightening a gas cap, clearing codes, simple sensor swaps) can be completed the same day.
• Complex repairs (catalytic converter, engine misfire diagnosis) may take several hours to a day depending on parts availability.
• At Bill Estes Toyota, factory-trained technicians streamline diagnostics, so you often save time and avoid repeat visits.
• Warranty-covered repairs must be done at a certified dealership to protect coverage and long-term savings.

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

• Confirm safety: park, turn off, then restart—if the light remains steady, it’s usually non-emergency; if flashing, stop driving and call us.
• Check the gas cap for tightness; a loose cap is a common and simple cause of an evaporative emissions code.
• Inspect visible fluid levels and under-hood for loose connections or obvious issues.
• Bring your 2026 Toyota Grand Highlander to Bill Estes Toyota for a prompt scan—our certified service keeps warranties intact and often costs less than independent shops over time.

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

• Diagnostic fees vary; most scans fall in a modest range depending on depth of testing and live-data needs.
• Simple code reads and a basic inspection are often economical—complex diagnostics can be slightly higher but reduce downstream repair costs by pinpointing the issue.
• Bill Estes Toyota frequently offers better immediate and long-term value than many independent shops because our factory-trained technicians diagnose accurately and prevent repeat work.
• If a repair is covered under warranty, work must be performed at a certified dealership to maintain coverage and ensure no out-of-pocket cost for covered items.

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

• It signals the vehicle’s onboard computer detected an emissions or engine system issue—codes range from minor to urgent.
• Causes include loose gas cap, faulty oxygen sensors, misfires, EVAP leaks, catalytic converter issues, or sensor/heater failures.
• Some issues are cosmetic; others can reduce fuel economy, increase emissions, or cause engine damage if ignored.
• Prompt dealer diagnostics at Bill Estes Toyota identify the root cause and protect long-term performance and warranty benefits.

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

• A loose or faulty gas cap and oxygen sensor issues are among the most frequent triggers.
• Other common causes include fuel trim problems, EVAP leaks, and intermittent misfires—many start small but escalate if left unaddressed.
• Addressing the issue at Bill Estes Toyota with certified technicians often costs less long term than repeated independent repairs and protects your warranty.
• We recommend prompt scanning to avoid increased repair costs like catalytic converter replacement or engine damage.