Frequently Asked Questions

What is the most common reason for check engine light on a 2013 Lexus LS 460?

• Faulty oxygen sensor: causes poor fuel economy and higher emissions if left unrepaired.
• Loose or damaged gas cap: a quick fix that often resolves emissions system errors.
• Catalytic converter problems: expensive if neglected—early diagnosis saves money.
• Ignition coils or spark plugs: can reduce performance and fuel efficiency; timely replacement avoids larger issues.
• Our dealership detects root causes with factory-grade tools and offers cost-effective solutions that often cost less than independent shops, with long-term savings and warranty protection.

What does it mean when the check engine light comes on in a 2013 Lexus LS 460?

• It signals the vehicle’s onboard diagnostics detected an emissions, performance, or system irregularity.
• Codes range from simple sensor alerts to serious engine or emissions failures; we read codes to prioritize repairs.
• Immediate inspection at a certified dealership protects warranty coverage—repairs covered under warranty must be done at a certified dealer.
• Visiting Nalley Lexus Smyrna ensures accurate diagnosis by factory-trained technicians using OEM parts and diagnostic procedures.
• Addressing issues early at our service center often yields immediate and long-term savings compared with delayed fixes.

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

• Check the gas cap: a loose or damaged cap is a common, low-cost cause and easy to correct.
• Look for obvious signs: fluid leaks, unusual noises, or performance loss can indicate severity.
• Bring the vehicle to Nalley Lexus Smyrna for a professional code read to determine cause and recommended repairs.
• Our dealership’s immediate diagnostics reduce downtime and often cost less than independent shops over time due to accurate fixes and warranty coverage.
• Remember: warranty repairs must be completed at a certified dealership to remain valid.

How much does a check engine light diagnostic cost for a 2013 Lexus LS 460?

• Typical diagnostic fees range from a basic scan to a full inspection; many dealers offer competitive flat rates or service specials—check our Service Specials page.
• At Nalley Lexus Smyrna, diagnostics are performed with factory tools to pinpoint issues accurately and avoid unnecessary repairs.
• Because we fix root causes quickly, customers often save money immediately and long term versus repeating ineffective repairs at non-certified shops.
• If the repair is covered by warranty, it must be completed at a certified Lexus dealership to maintain coverage.
• We frequently provide transparent estimates and service options that deliver higher-quality results for equal or lower total cost than many independent alternatives.

How long does a check engine light service take?

• Basic code reading can take 15–30 minutes; a full diagnostic and inspection typically requires 1–2 hours depending on symptoms.
• More complex repairs that require parts or in-depth testing will take longer; we provide clear timelines and estimates up front.
• Nalley Lexus Smyrna prioritizes efficient service with OEM parts and experienced technicians to minimize downtime and return your vehicle quickly.
• Using our dealership often reduces repeat visits and follow-ups, translating to long-term savings and greater reliability.
• For warranty-covered issues, timely service at a certified dealer ensures repairs are properly documented and upheld under warranty terms.