Frequently Asked Questions

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

• Typical diagnostic fees range from about $100 to $200 depending on the complexity of the scan and tests required.
• At Courtesy Toyota of Brandon, diagnostic fees are often applied toward the final repair, delivering immediate savings compared with many independent shops.
• Using our dealership means factory-trained technicians, OEM tools, and accurate code interpretation — reducing long-term costs by preventing repeat visits and incorrect repairs.
• If a repair is covered under warranty, it must be performed at a certified dealership to remain covered; we’ll handle warranty authorization and paperwork for you.
• Ask about service specials or diagnostic promotions to lower your out-of-pocket expense right away.

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

• The light signals that a sensor or system has detected an emission, fuel, ignition, or engine-management issue; severity ranges from minor to urgent.
• Common causes include loose fuel cap, oxygen sensor failure, catalytic converter issues, or engine misfire — each has different urgency and repair implications.
• Ignoring the light can increase fuel use, emissions, and risk of costly damage; dealership diagnostics pinpoint the cause quickly to minimize expense.
• Certified repairs using OEM parts preserve warranty coverage and ensure long-term value; warranty-covered repairs must be completed at a certified dealership.
• We recommend scheduling a diagnostic with Courtesy Toyota of Brandon for an accurate assessment and clear repair plan.

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

• Start with the simple checks: ensure the gas cap is tight and the fuel cap shows no damage — a loose cap is a common trigger.
• Note any performance changes (stalling, misfire, rough idle) and how long the light has been on; this helps prioritize service urgency.
• If the light is steady and vehicle behavior is normal, schedule a dealership diagnostic; if it’s flashing or you notice drivability loss, stop driving and contact us immediately.
• Dealership service provides factory-level diagnostics and preserves warranty eligibility for covered repairs; independent checks may jeopardize warranty coverage.
• Use our online scheduling or call Courtesy Toyota of Brandon to get prompt service and expert guidance.

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

• A loose or faulty gas cap and oxygen sensor failures are among the most frequent triggers for the check engine light.
• Other common issues include EVAP leaks, misfires from spark plugs or ignition coils, and catalytic converter degradation.
• Leaving these issues unresolved risks higher fuel bills, increased emissions, and more expensive repairs such as catalytic converter replacement.
• Our factory-trained technicians at Courtesy Toyota of Brandon identify root causes quickly so you save both immediately and over the long term.
• Remember: warranty-covered repairs must be performed at a certified dealership to maintain protection and avoid out-of-pocket surprises.

How long does a check engine light service take?

• Basic diagnostics typically take 30–90 minutes; more complex issues may require additional testing or road cycles and can take several hours or a day.
• If repairs are needed, simple fixes (gas cap, sensor replacement) may be completed the same day; major repairs can take longer depending on parts availability.
• Scheduling service at Courtesy Toyota of Brandon streamlines the process — we stock common parts and offer expedited service lanes to reduce downtime.
• For warranty-covered repairs, our team manages approvals and documentation, saving you time and ensuring the repair preserves coverage.
• Call ahead or use online scheduling so we can prepare and often complete your vehicle in a single visit.