Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2024 Toyota Highlander Hybrid?

• Typical diagnostic fees range from $90–$160, depending on the tests required and whether a test drive or advanced scanning is needed.
• At Nalley Toyota of Roswell we often offer competitive diagnostics and service specials; our factory-trained technicians can identify issues quickly to reduce overall repair time and cost.
• Many faults are minor and inexpensive to fix, but timely diagnosis avoids larger expenses later—immediate savings and lower long-term costs.
• Repairs covered under warranty must be performed at a certified dealership to preserve coverage and receive complimentary or reduced-cost service.

What does it mean when the check engine light comes on in a 2024 Toyota Highlander Hybrid?

• The light signals the onboard computer has detected a fault: anything from a loose gas cap to emissions or ignition problems.
• Common triggers include oxygen sensors, catalytic converter efficiency, misfires, EVAP leaks, or hybrid system alerts specific to the vehicle.
• While some issues allow continued driving, others require immediate attention; our technicians use OEM-grade scanners to determine severity and next steps.
• Addressing issues at our dealership often costs less than independent shops over time thanks to accurate diagnosis, genuine parts, and warranty protection.

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

• Start with simple checks: confirm the gas cap is tight and the fuel filler cap is undamaged—an easy fix that can clear the light.
• If the cap is secure and the light remains, book a diagnostic so our technicians can read stored codes with Toyota-specific tools.
• Performing diagnostics at Nalley Toyota of Roswell ensures warranty-compliant records and factory-recommended repairs when needed.
• Early professional inspection reduces the chance of escalating damage, saving you money and downtime in the long run.

What is the most common reason for check engine light on a 2024 Toyota Highlander Hybrid?

• Common causes include oxygen sensor faults, catalytic converter efficiency codes, EVAP system leaks, or intermittent misfires related to ignition or fuel systems.
• Hybrid-specific alerts can involve battery system diagnostics or inverter cooling—issues best evaluated with OEM hybrid diagnostic equipment.
• Nalley Toyota of Roswell’s hybrid-trained technicians diagnose hybrid and conventional codes quickly, often avoiding unnecessary parts replacement and lowering total cost.
• Warranty-covered repairs must be completed at a certified dealership to maintain coverage and ensure genuine parts and proper calibration.

How long does a check engine light service take?

• Simple diagnostics can take 30–60 minutes; more in-depth inspections or intermittent issues may require a few hours or multiple drive cycles.
• If parts are required, repair time depends on part availability—many common items are stocked at our dealership for faster turnaround.
• We emphasize prompt, accurate service to minimize your vehicle downtime and often deliver faster, more cost-effective outcomes than independent shops.
• When repairs are warranty-related, having service done at our certified facility ensures proper documentation and coverage for immediate and long-term savings.