Frequently Asked Questions

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

• Basic diagnostic scans at our service center typically start with a flat-fee inspection that includes code reading and technician recommendations; exact pricing depends on inspection depth and required repairs.
• Minor EVAP or sensor fixes are commonly lower cost, while parts like oxygen sensors or catalytic converters raise the total; we provide transparent estimates before any work.
• Choosing Nalley Toyota Stonecrest often costs less than independent shops because our efficient factory processes, genuine parts, and trained technicians reduce repeat visits and long-term expense.
• Any repairs covered under warranty must be performed at a certified dealership to preserve coverage—our team handles warranty work quickly and correctly.

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

• A steady check engine light signals a detected issue ranging from minor (loose gas cap or sensor) to system performance (fuel trim, emissions).
• A flashing light indicates an active misfire or condition that can damage the catalytic converter and requires immediate attention from trained technicians.
• Our factory-trained team will read codes, confirm symptoms, and recommend prioritized repairs so you understand urgency and cost.
• Prompt dealer service can protect warranty coverage, save fuel, and prevent cascading failures that increase long-term repair bills.

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

• Confirm vehicle performance: note any loss of power, rough idle, or exhaust smell and mention these to the technician.
• Check the gas cap for tightness—an EVAP leak from a loose cap is a frequent and inexpensive cause.
• Look for other dashboard warnings (temperature, oil) and avoid heavy loads if the light is flashing; bring the vehicle to the dealer promptly.
• Our service advisors and technicians will run a full scan, explain the codes in plain terms, and outline immediate and long-term savings from dealer repairs and genuine parts.

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

• Common causes include EVAP system leaks (loose gas cap), oxygen sensor wear, catalytic converter issues, and occasional misfires due to ignition or fuel problems.
• Oxygen sensors and EVAP faults are frequent on modern hybrids and can reduce fuel efficiency and emissions compliance if left unaddressed.
• Nalley Toyota Stonecrest’s factory-trained technicians diagnose precisely, using OEM parts to minimize repeat repairs and secure better long-term value than many independent options.
• Warranty-covered defects must be repaired at a certified dealership to preserve coverage; we handle warranty claims and repairs for a seamless experience.

How long does a check engine light service take?

• Initial diagnostic scans generally take 30–60 minutes, including code retrieval and a technician’s road or system checks to reproduce symptoms when needed.
• Minor repairs, such as sensor replacement or tightening an EVAP cap, can often be completed the same day; more complex repairs may require parts ordering and take one to two days.
• Dealer service minimizes delays with direct parts access, factory tools, and trained staff—often delivering faster completion and fewer return visits than independents.
• We communicate timelines clearly and highlight immediate and long-term savings from dealer-performed repairs and warranty work that must be done at a certified dealership.