Frequently Asked Questions

What is the most common reason for check engine light on a 2011 Lexus IS 350?

• Common causes include ignition misfires, faulty oxygen sensors, or issues with the EVAP system—each can trigger the light.
• Misfires risk catalytic converter damage if ignored, leading to much higher repair costs over time.
• Our certified technicians diagnose the root cause quickly using OEM tools to avoid unnecessary repairs and save you money long term.
• Warranty-covered repairs must be performed at a certified dealership to preserve coverage and ensure genuine parts are used.

How long does a check engine light service take?

• Basic diagnostic scans are often completed within 30–60 minutes, depending on symptoms and system complexity.
• If further testing or parts are required, we’ll provide a clear estimate and timeline before work begins.
• Because we keep many common parts in stock and use efficient OEM procedures, repairs are frequently completed faster than at independent shops.
• Choosing Nalley Lexus Roswell often delivers immediate and long-term savings thanks to skilled technicians and accurate, first-time repairs.

What does it mean when the check engine light comes on in a 2011 Lexus IS 350?

• A steady check engine light indicates the vehicle detected a fault in emissions, ignition, fuel delivery, or sensors.
• A diagnostic scan reads stored codes to identify the subsystem and guide repair—clearing the light without addressing the fault risks bigger problems.
• Our dealership uses manufacturer-grade diagnostics so the cause is identified precisely and repairs preserve factory warranty coverage.
• We’ll explain repair options, timelines, and cost-effective solutions that typically result in lower lifetime ownership costs compared with repeated, incorrect fixes.

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

• Start with basic checks: ensure the gas cap is secure—an EVAP leak from a loose cap is a common, inexpensive fix.
• If the cap is secure, schedule a diagnostic scan to read trouble codes; this quickly narrows the issue to sensors, fuel, ignition, or emissions systems.
• Bring your 2011 Lexus IS 350 to our service center so certified technicians can perform accurate diagnostics and protect warranty eligibility.
• Using the dealership often costs less than independent shops over time due to correct diagnosis, OEM parts, and reduced repeat repairs.

How much does a check engine light diagnostic cost for a 2011 Lexus IS 350?

• Diagnostic fees vary; many dealerships offer a competitive scan fee and will apply it toward repairs if you proceed at our service center.
• Because we perform accurate OEM diagnostics, you avoid wasted labor and parts costs common with trial-and-error repairs.
• Our pricing often costs less than independent shops when factoring immediate accuracy, genuine parts, and factory-trained technicians—resulting in lower long-term ownership costs.
• Remember: repairs covered under warranty must be completed at a certified dealership to maintain coverage and ensure genuine components are installed.