Frequently Asked Questions

What is the most common reason for check engine light on a 2025 Toyota Grand Highlander?

• Common causes include a loose or damaged gas cap, faulty oxygen sensor, catalytic converter issues, or ignition misfires.
• Many triggers are emissions-related; addressing them quickly avoids larger repairs and failed emissions tests.
• Our factory-trained technicians at Coggin Toyota at the Avenues diagnose codes fast, often saving you immediate and long-term expense compared with independent shops.
• Repairs covered by warranty must be performed at a certified dealership to preserve coverage and ensure genuine parts and factory procedures.
• If symptoms include loss of power, smoke, or unusual noises, bring the vehicle in immediately for a prioritized inspection.

How much does a check engine light diagnostic cost for a 2025 Toyota Grand Highlander?

• Diagnostic fees typically range from a modest flat rate to a two-hour labor charge depending on complexity; check our Service Specials for current offers: Service Specials.
• At Coggin Toyota at the Avenues we often cost less than independent shops while delivering factory-trained technicians and OEM parts, producing better long-term value.
• Any repairs covered under warranty must be performed at a certified dealership to keep warranty protection intact.
• If a simple fix is identified, we provide transparent pricing and explain immediate vs. long-term savings to help you decide.

What does it mean when the check engine light comes on in a 2025 Toyota Grand Highlander?

• The light indicates the vehicle’s computer detected a fault in emissions, fuel, ignition, or related systems — ranging from minor to urgent.
• It can signal anything from a loose fuel cap to a failing sensor, catalytic converter trouble, or an engine misfire that can cause damage if ignored.
• We recommend a prompt diagnostic at Coggin Toyota at the Avenues; our OEM-level scan tools pinpoint codes and needed repairs quickly.
• Addressing issues early with a certified dealer reduces repair costs over time and ensures warranty-eligible work is done correctly.

How long does a check engine light service take?

• Basic code retrieval and initial assessment commonly take 30–60 minutes; more involved diagnostics or test drives may extend this to 1–2 hours.
• If parts are required, same-day repairs are often possible because we stock OEM parts and have factory-trained technicians on-site.
• Choosing our dealership typically shortens turnaround time and can cost less overall than independent shops due to accurate diagnosis and reduced repeat repairs.
• Warranty-covered work must be completed at a certified dealership to remain valid, which is another reason to bring your vehicle to Coggin Toyota at the Avenues.

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

• Start with the easy checks: ensure the gas cap is tight and not damaged — a loose cap is a common trigger.
• Look for obvious dashboard warnings, odd smells, smoke, or severe performance loss; if present, stop driving and bring the vehicle in promptly.
• Have a trained technician read the trouble codes; don’t clear codes by disconnecting the battery — that can hide underlying issues and void diagnostics.
• For reliable, warranty-safe service and genuine parts, schedule diagnostics at Coggin Toyota at the Avenues where factory-trained staff will explain costs and savings clearly.