Frequently Asked Questions

What is the most common reason for check engine light on a 2013 Lexus IS 350?

• Loose or damaged gas cap and minor EVAP leaks are frequent causes that trigger the light on the 2013 Lexus IS 350.
• Oxygen sensor and catalytic converter issues are common on higher-mileage examples and can affect fuel economy and emissions.
• Ignition misfires (spark plugs, coils) also show up often and should be addressed quickly to avoid catalytic converter damage.
• Our service team diagnoses causes with factory-grade tools—prompt repairs at Nalley Lexus Smyrna often cost less than independent shops and protect long-term value.
• Repairs covered under warranty must be completed at a certified dealership to maintain coverage and ensure genuine parts and trained technicians perform the work.

What does it mean when the check engine light comes on in a 2013 Lexus IS 350?

• The check engine light is a general warning from the vehicle’s onboard diagnostics indicating an emissions or engine performance issue.
• Codes may point to EVAP leaks, oxygen sensors, misfires, fuel trim issues, or catalytic converter performance problems.
• Many issues are serviceable without major repairs if diagnosed early; postponing diagnosis can increase parts and labor costs.
• Nalley Lexus Smyrna uses OEM diagnostic software so we can quickly identify faults and recommend cost-effective repairs that provide immediate and long-term savings.
• If repairs fall under warranty, they must be performed at a certified dealership to preserve coverage and warranty benefits.

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

• Start with the gas cap: ensure it’s tight and not cracked—this simple check resolves many EVAP-related codes.
• Listen for obvious engine running issues such as rough idle or misfires that suggest immediate attention.
• Use a certified diagnostic scan—our technicians can read stored codes and live-data to pinpoint the cause quickly.
• Performing an immediate inspection at Nalley Lexus Smyrna often reduces repair scope and cost versus delaying service, delivering better long-term savings.
• Remember: warranty-covered repairs must be completed at an authorized dealership to remain valid.

How long does a check engine light service take?

• Basic diagnostics typically take 30–60 minutes: reading codes, reviewing freeze-frame data, and a brief road test when needed.
• If additional tests or parts are required, total time varies—our team provides an accurate estimate before work begins.
• Complex repairs (e.g., catalytic converter replacement) require more time for parts ordering and labor; we prioritize efficiency without cutting corners.
• Choosing Nalley Lexus Smyrna delivers efficient turnaround thanks to factory-trained technicians and OEM tools, often saving you both time and money compared with delayed or fragmented repairs.
• Warranty repairs must be done at a certified dealership to ensure coverage and proper documentation.

How much does a check engine light diagnostic cost for a 2013 Lexus IS 350?

• Diagnostics are commonly priced in a reasonable range—many customers see a clear, upfront diagnostic fee followed by a repair estimate if needed.
• Nalley Lexus Smyrna often costs less than independent shops when you factor in accurate diagnosis, genuine parts, and fewer repeat visits—delivering immediate and long-term savings.
• Labor and parts costs vary by the specific fault; we provide transparent estimates so you can make informed decisions.
• If repairs are covered under warranty, the work must be completed at a certified dealership to maintain warranty protection and avoid future costs.
• Ask about current service specials and diagnostic offers at our service center to reduce out-of-pocket expense while receiving factory-trained technician care.