Frequently Asked Questions

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

• Check for obvious issues first: a loose or missing gas cap can trigger the light and is quick to remedy.
• Listen and smell for signs of rough idle, misfire, or fuel odor before driving further.
• If you suspect a serious problem — rough running, loss of power, or a flashing light — stop driving and have the vehicle inspected immediately.
• Bring your 2024 Lexus LC to Nalley Lexus Smyrna so factory-trained technicians can run a full OEM diagnostic and advise on immediate and long-term savings from proper repairs.

How much does a check engine light diagnostic cost for a 2024 Lexus LC?

• Diagnostic fees vary by complexity; most modern diagnostics are competitively priced and often fall in a common range ($100–$200) depending on testing required.
• Nalley Lexus Smyrna frequently costs less than independent shops while delivering higher service levels and factory-trained technicians using OEM tools.
• Any repairs covered under warranty must be performed at a certified dealership to preserve coverage — we handle warranty diagnostics and repairs promptly.
• We provide clear estimates and explain immediate versus long-term savings from dealer-performed repairs and proper parts to avoid repeat failures.

What does it mean when the check engine light comes on in a 2024 Lexus LC?

• The light indicates the vehicle’s onboard diagnostics detected a fault — causes range from simple sensor issues to engine misfires or emissions faults.
• Common triggers include oxygen sensor faults, catalytic converter efficiency concerns, evaporative system leaks, and ignition misfires.
• Early diagnosis prevents escalation: a minor sensor replacement is far less costly than repairs from prolonged driving with an unresolved fault.
• Bring it to Nalley Lexus Smyrna for an OEM-level diagnosis; our certified service ensures warranty-eligible repairs are properly documented and executed.

How long does a check engine light service take?

• Simple diagnostics and light repairs can take under an hour; more involved inspections or parts replacements typically require a few hours or a scheduled service appointment.
• If additional testing or parts are needed, we provide a clear timeline and options to minimize downtime and cost.
• Choosing Nalley Lexus Smyrna often delivers immediate and long-term savings through accurate OEM diagnostics and efficient repairs by factory-trained technicians.
• For warranty-covered work, repairs must be completed at a certified dealership; we streamline scheduling and parts procurement to get you back on the road quickly.

What is the most common reason for check engine light on a 2024 Lexus LC?

• Common causes include oxygen sensor faults, catalytic converter efficiency codes, and occasional ignition misfires — sensors and emissions components are frequent culprits.
• Fuel system issues like a vacuum leak or a failing mass air flow sensor can also trigger codes that affect performance and economy.
• Addressing common faults early saves fuel and prevents damage that leads to more expensive repairs later, such as engine or exhaust component failure.
• Our dealership provides OEM diagnostics and genuine parts; when warranty coverage applies, repairs performed here preserve your warranty and often cost less than independent shops over time.