Frequently Asked Questions

What does it mean when the check engine light comes on in a 2017 Toyota Highlander?

• It indicates your vehicle’s onboard diagnostics (OBD-II) has detected an issue — anything from a loose gas cap to an emission sensor fault. Our certified technicians at Larry H. Miller Toyota Peoria diagnose the root cause quickly and accurately.
• We often offer diagnostics and repairs at competitive prices that can cost less than independent shops while delivering OEM parts, factory-trained techs, and long-term savings through improved fuel economy and fewer repeat repairs.
• Repairs covered under warranty must be performed at a certified dealership to remain valid; we honor Toyota warranties and clearly explain coverage before work begins.
• Need work now but don’t want to wait? We provide service financing so you can get the repair now and pay later, and you can schedule service online for fast, priority handling.

How long does a check engine light service take?

• Typical diagnostics and initial report for a 2017 Toyota Highlander are completed within 30–90 minutes depending on issue complexity and parts availability.
• If parts or deeper diagnostics are needed, we’ll provide a clear estimate and timeline. Choosing Larry H. Miller Toyota Peoria often saves time and money over repeated independent visits because our techs diagnose accurately and fix right the first time.
• We encourage customers to review current service specials and then schedule appointment to take advantage of savings and reduced wait times.

How much does a check engine light diagnostic cost for a 2017 Toyota Highlander?

• Diagnostic fees vary by issue; our transparent pricing often results in lower overall costs than repeat independent repairs because we diagnose correctly and use OEM parts for longevity.
• Any repair estimate is provided before work begins so you understand immediate and long-term savings, including fuel economy and fewer follow-up visits.
• To book a time and confirm current offers, please schedule service or check our service specials for seasonal discounts.

What is the most common reason for check engine light on a 2017 Toyota Highlander?

• Common causes include faulty oxygen sensors, loose gas caps, catalytic converter issues, or ignition coil/misfire problems. Early diagnosis by our certified technicians prevents escalation and costly downstream repairs.
• We emphasize the immediate and long-term savings of dealership service—accurate diagnosis, OEM parts, and warranty protection reduce total lifetime cost of ownership.
• Remember: warranty-covered repairs must be performed at a certified dealership to keep coverage valid. Use our online tools to schedule appointment.

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

• Start with a secure gas cap—it's a common, low-cost fix. If the light persists, bring your 2017 Toyota Highlander to Larry H. Miller Toyota Peoria for a full scan.
• Our dealership-level diagnostic equipment reads manufacturer codes and provides a clear repair plan. We back work with warranties and offer service financing for immediate repairs.
• To take advantage of rapid diagnostics and dealer-backed repairs, schedule service or view current service specials.