Frequently Asked Questions

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

• Check the gas cap for tightness and visible damage — a loose cap is a common, simple cause.
• Observe dashboard behavior: note any changes in performance, sounds, or hybrid-system warnings.
• Check obvious fluid levels (oil, coolant) and look for leaks; low fluids can trigger warnings.
• If basic checks are OK, bring your 2023 Toyota Highlander Hybrid to our dealership for a proper scan — warranty-covered repairs must be done at a certified dealership.
• Using our service often costs less than independent shops while providing factory training and long-term savings through proper diagnosis and OEM parts.

What does it mean when the check engine light comes on in a 2023 Toyota Highlander Hybrid?

• It signals the vehicle’s onboard diagnostics detected a fault in emissions, ignition, fuel, or hybrid systems.
• Causes range from a loose gas cap or faulty oxygen sensor to catalytic converter or hybrid-system faults.
• Some issues affect emissions only; others (misfire, hybrid inverter problems) can impact drivability and safety.
• Our technicians use factory-level scanners to pinpoint the code and recommend the right repair to avoid costly downstream damage.
• Remember: repairs covered under warranty should be completed at a certified dealership to maintain coverage and ensure long-term savings.

How much does a check engine light diagnostic cost for a 2023 Toyota Highlander Hybrid?

• Typical diagnostic scans at our dealership are competitively priced; final cost depends on code complexity and necessary tests.
• Minor scans and checks are often lower cost than independent shops because we use efficient OEM tools and parts sourcing.
• Upfront diagnostic fees can save money long-term by preventing misdiagnosed repairs or unnecessary parts replacement.
• If a warranty repair is required, diagnostics and covered repairs must be completed at a certified dealership to preserve coverage.
• We provide transparent estimates and explain immediate and lifetime savings from proper factory-recommended repairs and maintenance.

What is the most common reason for check engine light on a 2023 Toyota Highlander Hybrid?

• Common causes include a loose or damaged gas cap, faulty oxygen sensor, or issues with the catalytic converter.
• Hybrid-specific items — battery system sensors or inverter issues — can also trigger warnings, though less commonly than emissions sensors.
• Ignition misfires, spark plugs, and fuel system irregularities are frequent causes that affect performance and fuel economy.
• Early, accurate diagnostics at our dealership help avoid escalation to more expensive repairs and protect hybrid components.
• Choosing our certified service delivers immediate cost advantages and long-term savings through proper repairs and OEM parts.

How long does a check engine light service take?

• Initial scan and diagnostic typically take 30–60 minutes; more complex faults can require several hours for thorough testing.
• If parts or deeper inspection are needed, we’ll provide a clear timeline and estimate before work begins.
• Our technicians use factory procedures to reduce repeat visits and fix issues right the first time, saving you time and money long-term.
• Warranty-related repairs performed at our dealership follow manufacturer protocols to ensure coverage and reliable results.
• We prioritize clear communication and efficient scheduling to minimize downtime for your 2023 Toyota Highlander Hybrid.